* [PATCH v5 03/24] files-backend: add and use files_packed_refs_path()
From: Nguyễn Thái Ngọc Duy @ 2017-02-22 14:04 UTC (permalink / raw)
To: git
Cc: Junio C Hamano, Michael Haggerty, Johannes Schindelin,
Ramsay Jones, Stefan Beller, novalis,
Nguyễn Thái Ngọc Duy
In-Reply-To: <20170222140450.30886-1-pclouds@gmail.com>
Keep repo-related path handling in one place. This will make it easier
to add submodule/multiworktree support later.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
refs/files-backend.c | 29 ++++++++++++++++++-----------
1 file changed, 18 insertions(+), 11 deletions(-)
diff --git a/refs/files-backend.c b/refs/files-backend.c
index 1ebd59ec0..4676525de 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -923,6 +923,8 @@ struct files_ref_store {
*/
const char *submodule;
+ char *packed_refs_path;
+
struct ref_entry *loose;
struct packed_ref_cache *packed;
};
@@ -985,7 +987,14 @@ static struct ref_store *files_ref_store_create(const char *submodule)
base_ref_store_init(ref_store, &refs_be_files);
- refs->submodule = xstrdup_or_null(submodule);
+ if (submodule) {
+ refs->submodule = xstrdup(submodule);
+ refs->packed_refs_path = git_pathdup_submodule(
+ refs->submodule, "packed-refs");
+ return ref_store;
+ }
+
+ refs->packed_refs_path = git_pathdup("packed-refs");
return ref_store;
}
@@ -1153,19 +1162,18 @@ static void read_packed_refs(FILE *f, struct ref_dir *dir)
strbuf_release(&line);
}
+static const char *files_packed_refs_path(struct files_ref_store *refs)
+{
+ return refs->packed_refs_path;
+}
+
/*
* Get the packed_ref_cache for the specified files_ref_store,
* creating it if necessary.
*/
static struct packed_ref_cache *get_packed_ref_cache(struct files_ref_store *refs)
{
- char *packed_refs_file;
-
- if (refs->submodule)
- packed_refs_file = git_pathdup_submodule(refs->submodule,
- "packed-refs");
- else
- packed_refs_file = git_pathdup("packed-refs");
+ const char *packed_refs_file = files_packed_refs_path(refs);
if (refs->packed &&
!stat_validity_check(&refs->packed->validity, packed_refs_file))
@@ -1184,7 +1192,6 @@ static struct packed_ref_cache *get_packed_ref_cache(struct files_ref_store *ref
fclose(f);
}
}
- free(packed_refs_file);
return refs->packed;
}
@@ -2160,7 +2167,7 @@ static int lock_packed_refs(struct files_ref_store *refs, int flags)
}
if (hold_lock_file_for_update_timeout(
- &packlock, git_path("packed-refs"),
+ &packlock, files_packed_refs_path(refs),
flags, timeout_value) < 0)
return -1;
/*
@@ -2426,7 +2433,7 @@ static int repack_without_refs(struct files_ref_store *refs,
return 0; /* no refname exists in packed refs */
if (lock_packed_refs(refs, 0)) {
- unable_to_lock_message(git_path("packed-refs"), errno, err);
+ unable_to_lock_message(files_packed_refs_path(refs), errno, err);
return -1;
}
packed = get_packed_refs(refs);
--
2.11.0.157.gd943d85
^ permalink raw reply related
* [PATCH v5 04/24] files-backend: convert git_path() to strbuf_git_path()
From: Nguyễn Thái Ngọc Duy @ 2017-02-22 14:04 UTC (permalink / raw)
To: git
Cc: Junio C Hamano, Michael Haggerty, Johannes Schindelin,
Ramsay Jones, Stefan Beller, novalis,
Nguyễn Thái Ngọc Duy
In-Reply-To: <20170222140450.30886-1-pclouds@gmail.com>
git_path() and friends are going to be killed in files-backend.c in near
future. And because there's a risk with overwriting buffer in
git_path(), let's convert them all to strbuf_git_path(). We'll have
easier time killing/converting strbuf_git_path() then because we won't
have to worry about memory management again.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
refs/files-backend.c | 139 +++++++++++++++++++++++++++++++++++++++------------
1 file changed, 106 insertions(+), 33 deletions(-)
diff --git a/refs/files-backend.c b/refs/files-backend.c
index 4676525de..435db1293 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -2319,6 +2319,7 @@ enum {
static void try_remove_empty_parents(const char *refname, unsigned int flags)
{
struct strbuf buf = STRBUF_INIT;
+ struct strbuf sb = STRBUF_INIT;
char *p, *q;
int i;
@@ -2340,14 +2341,19 @@ static void try_remove_empty_parents(const char *refname, unsigned int flags)
if (q == p)
break;
strbuf_setlen(&buf, q - buf.buf);
- if ((flags & REMOVE_EMPTY_PARENTS_REF) &&
- rmdir(git_path("%s", buf.buf)))
+
+ strbuf_reset(&sb);
+ strbuf_git_path(&sb, "%s", buf.buf);
+ if ((flags & REMOVE_EMPTY_PARENTS_REF) && rmdir(sb.buf))
flags &= ~REMOVE_EMPTY_PARENTS_REF;
- if ((flags & REMOVE_EMPTY_PARENTS_REFLOG) &&
- rmdir(git_path("logs/%s", buf.buf)))
+
+ strbuf_reset(&sb);
+ strbuf_git_path(&sb, "logs/%s", buf.buf);
+ if ((flags & REMOVE_EMPTY_PARENTS_REFLOG) && rmdir(sb.buf))
flags &= ~REMOVE_EMPTY_PARENTS_REFLOG;
}
strbuf_release(&buf);
+ strbuf_release(&sb);
}
/* make sure nobody touched the ref, and unlink */
@@ -2509,11 +2515,16 @@ static int files_delete_refs(struct ref_store *ref_store,
*/
#define TMP_RENAMED_LOG "logs/refs/.tmp-renamed-log"
-static int rename_tmp_log_callback(const char *path, void *cb)
+struct rename_cb {
+ const char *tmp_renamed_log;
+ int true_errno;
+};
+
+static int rename_tmp_log_callback(const char *path, void *cb_data)
{
- int *true_errno = cb;
+ struct rename_cb *cb = cb_data;
- if (rename(git_path(TMP_RENAMED_LOG), path)) {
+ if (rename(cb->tmp_renamed_log, path)) {
/*
* rename(a, b) when b is an existing directory ought
* to result in ISDIR, but Solaris 5.8 gives ENOTDIR.
@@ -2521,7 +2532,7 @@ static int rename_tmp_log_callback(const char *path, void *cb)
* but report EISDIR to raceproof_create_file() so
* that it knows to retry.
*/
- *true_errno = errno;
+ cb->true_errno = errno;
if (errno == ENOTDIR)
errno = EISDIR;
return -1;
@@ -2532,20 +2543,26 @@ static int rename_tmp_log_callback(const char *path, void *cb)
static int rename_tmp_log(const char *newrefname)
{
- char *path = git_pathdup("logs/%s", newrefname);
- int ret, true_errno;
+ struct strbuf path = STRBUF_INIT;
+ struct strbuf tmp = STRBUF_INIT;
+ struct rename_cb cb;
+ int ret;
- ret = raceproof_create_file(path, rename_tmp_log_callback, &true_errno);
+ strbuf_git_path(&path, "logs/%s", newrefname);
+ strbuf_git_path(&tmp, TMP_RENAMED_LOG);
+ cb.tmp_renamed_log = tmp.buf;
+ ret = raceproof_create_file(path.buf, rename_tmp_log_callback, &cb);
if (ret) {
if (errno == EISDIR)
- error("directory not empty: %s", path);
+ error("directory not empty: %s", path.buf);
else
error("unable to move logfile %s to %s: %s",
- git_path(TMP_RENAMED_LOG), path,
- strerror(true_errno));
+ tmp.buf, path.buf,
+ strerror(cb.true_errno));
}
- free(path);
+ strbuf_release(&path);
+ strbuf_release(&tmp);
return ret;
}
@@ -2586,9 +2603,15 @@ static int files_rename_ref(struct ref_store *ref_store,
int flag = 0, logmoved = 0;
struct ref_lock *lock;
struct stat loginfo;
- int log = !lstat(git_path("logs/%s", oldrefname), &loginfo);
+ struct strbuf sb_oldref = STRBUF_INIT;
+ struct strbuf sb_newref = STRBUF_INIT;
+ struct strbuf tmp_renamed_log = STRBUF_INIT;
+ int log, ret;
struct strbuf err = STRBUF_INIT;
+ strbuf_git_path(&sb_oldref, "logs/%s", oldrefname);
+ log = !lstat(sb_oldref.buf, &loginfo);
+ strbuf_release(&sb_oldref);
if (log && S_ISLNK(loginfo.st_mode))
return error("reflog for %s is a symlink", oldrefname);
@@ -2602,7 +2625,12 @@ static int files_rename_ref(struct ref_store *ref_store,
if (!rename_ref_available(oldrefname, newrefname))
return 1;
- if (log && rename(git_path("logs/%s", oldrefname), git_path(TMP_RENAMED_LOG)))
+ strbuf_git_path(&sb_oldref, "logs/%s", oldrefname);
+ strbuf_git_path(&tmp_renamed_log, TMP_RENAMED_LOG);
+ ret = log && rename(sb_oldref.buf, tmp_renamed_log.buf);
+ strbuf_release(&sb_oldref);
+ strbuf_release(&tmp_renamed_log);
+ if (ret)
return error("unable to move logfile logs/%s to "TMP_RENAMED_LOG": %s",
oldrefname, strerror(errno));
@@ -2681,13 +2709,19 @@ static int files_rename_ref(struct ref_store *ref_store,
log_all_ref_updates = flag;
rollbacklog:
- if (logmoved && rename(git_path("logs/%s", newrefname), git_path("logs/%s", oldrefname)))
+ strbuf_git_path(&sb_newref, "logs/%s", newrefname);
+ strbuf_git_path(&sb_oldref, "logs/%s", oldrefname);
+ if (logmoved && rename(sb_newref.buf, sb_oldref.buf))
error("unable to restore logfile %s from %s: %s",
oldrefname, newrefname, strerror(errno));
+ strbuf_git_path(&tmp_renamed_log, TMP_RENAMED_LOG);
if (!logmoved && log &&
- rename(git_path(TMP_RENAMED_LOG), git_path("logs/%s", oldrefname)))
+ rename(tmp_renamed_log.buf, sb_oldref.buf))
error("unable to restore logfile %s from "TMP_RENAMED_LOG": %s",
oldrefname, strerror(errno));
+ strbuf_release(&sb_newref);
+ strbuf_release(&sb_oldref);
+ strbuf_release(&tmp_renamed_log);
return 1;
}
@@ -2861,18 +2895,24 @@ int files_log_ref_write(const char *refname, const unsigned char *old_sha1,
result = log_ref_write_fd(logfd, old_sha1, new_sha1,
git_committer_info(0), msg);
if (result) {
+ struct strbuf sb = STRBUF_INIT;
int save_errno = errno;
+ strbuf_git_path(&sb, "logs/%s", refname);
strbuf_addf(err, "unable to append to '%s': %s",
- git_path("logs/%s", refname), strerror(save_errno));
+ sb.buf, strerror(save_errno));
+ strbuf_release(&sb);
close(logfd);
return -1;
}
if (close(logfd)) {
+ struct strbuf sb = STRBUF_INIT;
int save_errno = errno;
+ strbuf_git_path(&sb, "logs/%s", refname);
strbuf_addf(err, "unable to append to '%s': %s",
- git_path("logs/%s", refname), strerror(save_errno));
+ sb.buf, strerror(save_errno));
+ strbuf_release(&sb);
return -1;
}
return 0;
@@ -3092,22 +3132,32 @@ int set_worktree_head_symref(const char *gitdir, const char *target)
static int files_reflog_exists(struct ref_store *ref_store,
const char *refname)
{
+ struct strbuf sb = STRBUF_INIT;
struct stat st;
+ int ret;
/* Check validity (but we don't need the result): */
files_downcast(ref_store, 0, "reflog_exists");
- return !lstat(git_path("logs/%s", refname), &st) &&
- S_ISREG(st.st_mode);
+ strbuf_git_path(&sb, "logs/%s", refname);
+ ret = !lstat(sb.buf, &st) && S_ISREG(st.st_mode);
+ strbuf_release(&sb);
+ return ret;
}
static int files_delete_reflog(struct ref_store *ref_store,
const char *refname)
{
+ struct strbuf sb = STRBUF_INIT;
+ int ret;
+
/* Check validity (but we don't need the result): */
files_downcast(ref_store, 0, "delete_reflog");
- return remove_path(git_path("logs/%s", refname));
+ strbuf_git_path(&sb, "logs/%s", refname);
+ ret = remove_path(sb.buf);
+ strbuf_release(&sb);
+ return ret;
}
static int show_one_reflog_ent(struct strbuf *sb, each_reflog_ent_fn fn, void *cb_data)
@@ -3162,7 +3212,9 @@ static int files_for_each_reflog_ent_reverse(struct ref_store *ref_store,
/* Check validity (but we don't need the result): */
files_downcast(ref_store, 0, "for_each_reflog_ent_reverse");
- logfp = fopen(git_path("logs/%s", refname), "r");
+ strbuf_git_path(&sb, "logs/%s", refname);
+ logfp = fopen(sb.buf, "r");
+ strbuf_release(&sb);
if (!logfp)
return -1;
@@ -3268,7 +3320,9 @@ static int files_for_each_reflog_ent(struct ref_store *ref_store,
/* Check validity (but we don't need the result): */
files_downcast(ref_store, 0, "for_each_reflog_ent");
- logfp = fopen(git_path("logs/%s", refname), "r");
+ strbuf_git_path(&sb, "logs/%s", refname);
+ logfp = fopen(sb.buf, "r");
+ strbuf_release(&sb);
if (!logfp)
return -1;
@@ -3350,12 +3404,15 @@ static struct ref_iterator *files_reflog_iterator_begin(struct ref_store *ref_st
{
struct files_reflog_iterator *iter = xcalloc(1, sizeof(*iter));
struct ref_iterator *ref_iterator = &iter->base;
+ struct strbuf sb = STRBUF_INIT;
/* Check validity (but we don't need the result): */
files_downcast(ref_store, 0, "reflog_iterator_begin");
base_ref_iterator_init(ref_iterator, &files_reflog_iterator_vtable);
- iter->dir_iterator = dir_iterator_begin(git_path("logs"));
+ strbuf_git_path(&sb, "logs");
+ iter->dir_iterator = dir_iterator_begin(sb.buf);
+ strbuf_release(&sb);
return ref_iterator;
}
@@ -3693,6 +3750,7 @@ static int files_transaction_commit(struct ref_store *ref_store,
char *head_ref = NULL;
int head_type;
struct object_id head_oid;
+ struct strbuf sb = STRBUF_INIT;
assert(err);
@@ -3814,7 +3872,9 @@ static int files_transaction_commit(struct ref_store *ref_store,
if (!(update->type & REF_ISPACKED) ||
update->type & REF_ISSYMREF) {
/* It is a loose reference. */
- if (unlink_or_msg(git_path("%s", lock->ref_name), err)) {
+ strbuf_reset(&sb);
+ strbuf_git_path(&sb, "%s", lock->ref_name);
+ if (unlink_or_msg(sb.buf, err)) {
ret = TRANSACTION_GENERIC_ERROR;
goto cleanup;
}
@@ -3834,7 +3894,9 @@ static int files_transaction_commit(struct ref_store *ref_store,
/* Delete the reflogs of any references that were deleted: */
for_each_string_list_item(ref_to_delete, &refs_to_delete) {
- if (!unlink_or_warn(git_path("logs/%s", ref_to_delete->string)))
+ strbuf_reset(&sb);
+ strbuf_git_path(&sb, "logs/%s", ref_to_delete->string);
+ if (!unlink_or_warn(sb.buf))
try_remove_empty_parents(ref_to_delete->string,
REMOVE_EMPTY_PARENTS_REFLOG);
}
@@ -3842,6 +3904,7 @@ static int files_transaction_commit(struct ref_store *ref_store,
clear_loose_ref_cache(refs);
cleanup:
+ strbuf_release(&sb);
transaction->state = REF_TRANSACTION_CLOSED;
for (i = 0; i < transaction->nr; i++) {
@@ -4108,18 +4171,28 @@ static int files_reflog_expire(struct ref_store *ref_store,
static int files_init_db(struct ref_store *ref_store, struct strbuf *err)
{
+ struct strbuf sb = STRBUF_INIT;
+
/* Check validity (but we don't need the result): */
files_downcast(ref_store, 0, "init_db");
/*
* Create .git/refs/{heads,tags}
*/
- safe_create_dir(git_path("refs/heads"), 1);
- safe_create_dir(git_path("refs/tags"), 1);
+ strbuf_git_path(&sb, "refs/heads");
+ safe_create_dir(sb.buf, 1);
+ strbuf_reset(&sb);
+ strbuf_git_path(&sb, "refs/tags");
+ safe_create_dir(sb.buf, 1);
+ strbuf_reset(&sb);
if (get_shared_repository()) {
- adjust_shared_perm(git_path("refs/heads"));
- adjust_shared_perm(git_path("refs/tags"));
+ strbuf_git_path(&sb, "refs/heads");
+ adjust_shared_perm(sb.buf);
+ strbuf_reset(&sb);
+ strbuf_git_path(&sb, "refs/tags");
+ adjust_shared_perm(sb.buf);
}
+ strbuf_release(&sb);
return 0;
}
--
2.11.0.157.gd943d85
^ permalink raw reply related
* [PATCH v5 05/24] files-backend: move "logs/" out of TMP_RENAMED_LOG
From: Nguyễn Thái Ngọc Duy @ 2017-02-22 14:04 UTC (permalink / raw)
To: git
Cc: Junio C Hamano, Michael Haggerty, Johannes Schindelin,
Ramsay Jones, Stefan Beller, novalis,
Nguyễn Thái Ngọc Duy
In-Reply-To: <20170222140450.30886-1-pclouds@gmail.com>
This makes reflog path building consistent, always in the form of
strbuf_git_path(sb, "logs/%s", refname);
It reduces the mental workload a bit in the next patch when that
function call is converted.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
refs/files-backend.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/refs/files-backend.c b/refs/files-backend.c
index 435db1293..69946b0de 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -2513,7 +2513,7 @@ static int files_delete_refs(struct ref_store *ref_store,
* IOW, to avoid cross device rename errors, the temporary renamed log must
* live into logs/refs.
*/
-#define TMP_RENAMED_LOG "logs/refs/.tmp-renamed-log"
+#define TMP_RENAMED_LOG "refs/.tmp-renamed-log"
struct rename_cb {
const char *tmp_renamed_log;
@@ -2549,7 +2549,7 @@ static int rename_tmp_log(const char *newrefname)
int ret;
strbuf_git_path(&path, "logs/%s", newrefname);
- strbuf_git_path(&tmp, TMP_RENAMED_LOG);
+ strbuf_git_path(&tmp, "logs/%s", TMP_RENAMED_LOG);
cb.tmp_renamed_log = tmp.buf;
ret = raceproof_create_file(path.buf, rename_tmp_log_callback, &cb);
if (ret) {
@@ -2626,12 +2626,12 @@ static int files_rename_ref(struct ref_store *ref_store,
return 1;
strbuf_git_path(&sb_oldref, "logs/%s", oldrefname);
- strbuf_git_path(&tmp_renamed_log, TMP_RENAMED_LOG);
+ strbuf_git_path(&tmp_renamed_log, "logs/%s", TMP_RENAMED_LOG);
ret = log && rename(sb_oldref.buf, tmp_renamed_log.buf);
strbuf_release(&sb_oldref);
strbuf_release(&tmp_renamed_log);
if (ret)
- return error("unable to move logfile logs/%s to "TMP_RENAMED_LOG": %s",
+ return error("unable to move logfile logs/%s to logs/"TMP_RENAMED_LOG": %s",
oldrefname, strerror(errno));
if (delete_ref(oldrefname, orig_sha1, REF_NODEREF)) {
@@ -2714,10 +2714,10 @@ static int files_rename_ref(struct ref_store *ref_store,
if (logmoved && rename(sb_newref.buf, sb_oldref.buf))
error("unable to restore logfile %s from %s: %s",
oldrefname, newrefname, strerror(errno));
- strbuf_git_path(&tmp_renamed_log, TMP_RENAMED_LOG);
+ strbuf_git_path(&tmp_renamed_log, "logs/%s", TMP_RENAMED_LOG);
if (!logmoved && log &&
rename(tmp_renamed_log.buf, sb_oldref.buf))
- error("unable to restore logfile %s from "TMP_RENAMED_LOG": %s",
+ error("unable to restore logfile %s from logs/"TMP_RENAMED_LOG": %s",
oldrefname, strerror(errno));
strbuf_release(&sb_newref);
strbuf_release(&sb_oldref);
--
2.11.0.157.gd943d85
^ permalink raw reply related
* [PATCH v5 07/24] files-backend: add and use files_refname_path()
From: Nguyễn Thái Ngọc Duy @ 2017-02-22 14:04 UTC (permalink / raw)
To: git
Cc: Junio C Hamano, Michael Haggerty, Johannes Schindelin,
Ramsay Jones, Stefan Beller, novalis,
Nguyễn Thái Ngọc Duy
In-Reply-To: <20170222140450.30886-1-pclouds@gmail.com>
Keep repo-related path handling in one place. This will make it easier
to add submodule/multiworktree support later.
This automatically adds the "if submodule then use the submodule version
of git_path" to other call sites too. But it does not mean those
operations are sumodule-ready. Not yet.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
refs/files-backend.c | 45 +++++++++++++++++++++++++--------------------
1 file changed, 25 insertions(+), 20 deletions(-)
diff --git a/refs/files-backend.c b/refs/files-backend.c
index 7b4ea4c56..72f4e1746 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -1180,6 +1180,18 @@ static void files_reflog_path(struct files_ref_store *refs,
strbuf_git_path(sb, "logs/%s", refname);
}
+static void files_refname_path(struct files_ref_store *refs,
+ struct strbuf *sb,
+ const char *refname)
+{
+ if (refs->submodule) {
+ strbuf_git_path_submodule(sb, refs->submodule, "%s", refname);
+ return;
+ }
+
+ strbuf_git_path(sb, "%s", refname);
+}
+
/*
* Get the packed_ref_cache for the specified files_ref_store,
* creating it if necessary.
@@ -1251,10 +1263,7 @@ static void read_loose_refs(const char *dirname, struct ref_dir *dir)
size_t path_baselen;
int err = 0;
- if (refs->submodule)
- err = strbuf_git_path_submodule(&path, refs->submodule, "%s", dirname);
- else
- strbuf_git_path(&path, "%s", dirname);
+ files_refname_path(refs, &path, dirname);
path_baselen = path.len;
if (err) {
@@ -1396,10 +1405,7 @@ static int files_read_raw_ref(struct ref_store *ref_store,
*type = 0;
strbuf_reset(&sb_path);
- if (refs->submodule)
- strbuf_git_path_submodule(&sb_path, refs->submodule, "%s", refname);
- else
- strbuf_git_path(&sb_path, "%s", refname);
+ files_refname_path(refs, &sb_path, refname);
path = sb_path.buf;
@@ -1587,7 +1593,7 @@ static int lock_raw_ref(struct files_ref_store *refs,
*lock_p = lock = xcalloc(1, sizeof(*lock));
lock->ref_name = xstrdup(refname);
- strbuf_git_path(&ref_file, "%s", refname);
+ files_refname_path(refs, &ref_file, refname);
retry:
switch (safe_create_leading_directories(ref_file.buf)) {
@@ -2059,7 +2065,7 @@ static struct ref_lock *lock_ref_sha1_basic(struct files_ref_store *refs,
if (flags & REF_DELETING)
resolve_flags |= RESOLVE_REF_ALLOW_BAD_NAME;
- strbuf_git_path(&ref_file, "%s", refname);
+ files_refname_path(refs, &ref_file, refname);
resolved = !!resolve_ref_unsafe(refname, resolve_flags,
lock->old_oid.hash, type);
if (!resolved && errno == EISDIR) {
@@ -2358,7 +2364,7 @@ static void try_remove_empty_parents(struct files_ref_store *refs,
strbuf_setlen(&buf, q - buf.buf);
strbuf_reset(&sb);
- strbuf_git_path(&sb, "%s", buf.buf);
+ files_refname_path(refs, &sb, buf.buf);
if ((flags & REMOVE_EMPTY_PARENTS_REF) && rmdir(sb.buf))
flags &= ~REMOVE_EMPTY_PARENTS_REF;
@@ -2668,7 +2674,7 @@ static int files_rename_ref(struct ref_store *ref_store,
struct strbuf path = STRBUF_INIT;
int result;
- strbuf_git_path(&path, "%s", newrefname);
+ files_refname_path(refs, &path, newrefname);
result = remove_empty_directories(&path);
strbuf_release(&path);
@@ -3901,7 +3907,7 @@ static int files_transaction_commit(struct ref_store *ref_store,
update->type & REF_ISSYMREF) {
/* It is a loose reference. */
strbuf_reset(&sb);
- strbuf_git_path(&sb, "%s", lock->ref_name);
+ files_refname_path(refs, &sb, lock->ref_name);
if (unlink_or_msg(sb.buf, err)) {
ret = TRANSACTION_GENERIC_ERROR;
goto cleanup;
@@ -4201,25 +4207,24 @@ static int files_reflog_expire(struct ref_store *ref_store,
static int files_init_db(struct ref_store *ref_store, struct strbuf *err)
{
+ struct files_ref_store *refs =
+ files_downcast(ref_store, 0, "init_db");
struct strbuf sb = STRBUF_INIT;
- /* Check validity (but we don't need the result): */
- files_downcast(ref_store, 0, "init_db");
-
/*
* Create .git/refs/{heads,tags}
*/
- strbuf_git_path(&sb, "refs/heads");
+ files_refname_path(refs, &sb, "refs/heads");
safe_create_dir(sb.buf, 1);
strbuf_reset(&sb);
- strbuf_git_path(&sb, "refs/tags");
+ files_refname_path(refs, &sb, "refs/tags");
safe_create_dir(sb.buf, 1);
strbuf_reset(&sb);
if (get_shared_repository()) {
- strbuf_git_path(&sb, "refs/heads");
+ files_refname_path(refs, &sb, "refs/heads");
adjust_shared_perm(sb.buf);
strbuf_reset(&sb);
- strbuf_git_path(&sb, "refs/tags");
+ files_refname_path(refs, &sb, "refs/tags");
adjust_shared_perm(sb.buf);
}
strbuf_release(&sb);
--
2.11.0.157.gd943d85
^ permalink raw reply related
* [PATCH v5 06/24] files-backend: add and use files_reflog_path()
From: Nguyễn Thái Ngọc Duy @ 2017-02-22 14:04 UTC (permalink / raw)
To: git
Cc: Junio C Hamano, Michael Haggerty, Johannes Schindelin,
Ramsay Jones, Stefan Beller, novalis,
Nguyễn Thái Ngọc Duy
In-Reply-To: <20170222140450.30886-1-pclouds@gmail.com>
Keep repo-related path handling in one place. This will make it easier
to add submodule/multiworktree support later.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
refs/files-backend.c | 148 +++++++++++++++++++++++++++++++--------------------
1 file changed, 89 insertions(+), 59 deletions(-)
diff --git a/refs/files-backend.c b/refs/files-backend.c
index 69946b0de..7b4ea4c56 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -165,7 +165,8 @@ static struct ref_entry *create_dir_entry(struct files_ref_store *ref_store,
const char *dirname, size_t len,
int incomplete);
static void add_entry_to_dir(struct ref_dir *dir, struct ref_entry *entry);
-static int files_log_ref_write(const char *refname, const unsigned char *old_sha1,
+static int files_log_ref_write(struct files_ref_store *refs,
+ const char *refname, const unsigned char *old_sha1,
const unsigned char *new_sha1, const char *msg,
int flags, struct strbuf *err);
@@ -1167,6 +1168,18 @@ static const char *files_packed_refs_path(struct files_ref_store *refs)
return refs->packed_refs_path;
}
+static void files_reflog_path(struct files_ref_store *refs,
+ struct strbuf *sb,
+ const char *refname)
+{
+ if (!refname) {
+ strbuf_git_path(sb, "logs");
+ return;
+ }
+
+ strbuf_git_path(sb, "logs/%s", refname);
+}
+
/*
* Get the packed_ref_cache for the specified files_ref_store,
* creating it if necessary.
@@ -2316,7 +2329,9 @@ enum {
* subdirs. flags is a combination of REMOVE_EMPTY_PARENTS_REF and/or
* REMOVE_EMPTY_PARENTS_REFLOG.
*/
-static void try_remove_empty_parents(const char *refname, unsigned int flags)
+static void try_remove_empty_parents(struct files_ref_store *refs,
+ const char *refname,
+ unsigned int flags)
{
struct strbuf buf = STRBUF_INIT;
struct strbuf sb = STRBUF_INIT;
@@ -2348,7 +2363,7 @@ static void try_remove_empty_parents(const char *refname, unsigned int flags)
flags &= ~REMOVE_EMPTY_PARENTS_REF;
strbuf_reset(&sb);
- strbuf_git_path(&sb, "logs/%s", buf.buf);
+ files_reflog_path(refs, &sb, buf.buf);
if ((flags & REMOVE_EMPTY_PARENTS_REFLOG) && rmdir(sb.buf))
flags &= ~REMOVE_EMPTY_PARENTS_REFLOG;
}
@@ -2541,15 +2556,15 @@ static int rename_tmp_log_callback(const char *path, void *cb_data)
}
}
-static int rename_tmp_log(const char *newrefname)
+static int rename_tmp_log(struct files_ref_store *refs, const char *newrefname)
{
struct strbuf path = STRBUF_INIT;
struct strbuf tmp = STRBUF_INIT;
struct rename_cb cb;
int ret;
- strbuf_git_path(&path, "logs/%s", newrefname);
- strbuf_git_path(&tmp, "logs/%s", TMP_RENAMED_LOG);
+ files_reflog_path(refs, &path, newrefname);
+ files_reflog_path(refs, &tmp, TMP_RENAMED_LOG);
cb.tmp_renamed_log = tmp.buf;
ret = raceproof_create_file(path.buf, rename_tmp_log_callback, &cb);
if (ret) {
@@ -2609,7 +2624,7 @@ static int files_rename_ref(struct ref_store *ref_store,
int log, ret;
struct strbuf err = STRBUF_INIT;
- strbuf_git_path(&sb_oldref, "logs/%s", oldrefname);
+ files_reflog_path(refs, &sb_oldref, oldrefname);
log = !lstat(sb_oldref.buf, &loginfo);
strbuf_release(&sb_oldref);
if (log && S_ISLNK(loginfo.st_mode))
@@ -2625,8 +2640,8 @@ static int files_rename_ref(struct ref_store *ref_store,
if (!rename_ref_available(oldrefname, newrefname))
return 1;
- strbuf_git_path(&sb_oldref, "logs/%s", oldrefname);
- strbuf_git_path(&tmp_renamed_log, "logs/%s", TMP_RENAMED_LOG);
+ files_reflog_path(refs, &sb_oldref, oldrefname);
+ files_reflog_path(refs, &tmp_renamed_log, TMP_RENAMED_LOG);
ret = log && rename(sb_oldref.buf, tmp_renamed_log.buf);
strbuf_release(&sb_oldref);
strbuf_release(&tmp_renamed_log);
@@ -2667,7 +2682,7 @@ static int files_rename_ref(struct ref_store *ref_store,
}
}
- if (log && rename_tmp_log(newrefname))
+ if (log && rename_tmp_log(refs, newrefname))
goto rollback;
logmoved = log;
@@ -2709,12 +2724,12 @@ static int files_rename_ref(struct ref_store *ref_store,
log_all_ref_updates = flag;
rollbacklog:
- strbuf_git_path(&sb_newref, "logs/%s", newrefname);
- strbuf_git_path(&sb_oldref, "logs/%s", oldrefname);
+ files_reflog_path(refs, &sb_newref, newrefname);
+ files_reflog_path(refs, &sb_oldref, oldrefname);
if (logmoved && rename(sb_newref.buf, sb_oldref.buf))
error("unable to restore logfile %s from %s: %s",
oldrefname, newrefname, strerror(errno));
- strbuf_git_path(&tmp_renamed_log, "logs/%s", TMP_RENAMED_LOG);
+ files_reflog_path(refs, &tmp_renamed_log, TMP_RENAMED_LOG);
if (!logmoved && log &&
rename(tmp_renamed_log.buf, sb_oldref.buf))
error("unable to restore logfile %s from logs/"TMP_RENAMED_LOG": %s",
@@ -2782,10 +2797,15 @@ static int open_or_create_logfile(const char *path, void *cb)
* set *logfd to -1. On failure, fill in *err, set *logfd to -1, and
* return -1.
*/
-static int log_ref_setup(const char *refname, int force_create,
+static int log_ref_setup(struct files_ref_store *refs,
+ const char *refname, int force_create,
int *logfd, struct strbuf *err)
{
- char *logfile = git_pathdup("logs/%s", refname);
+ struct strbuf logfile_sb = STRBUF_INIT;
+ char *logfile;
+
+ files_reflog_path(refs, &logfile_sb, refname);
+ logfile = strbuf_detach(&logfile_sb, NULL);
if (force_create || should_autocreate_reflog(refname)) {
if (raceproof_create_file(logfile, open_or_create_logfile, logfd)) {
@@ -2835,12 +2855,11 @@ static int files_create_reflog(struct ref_store *ref_store,
const char *refname, int force_create,
struct strbuf *err)
{
+ struct files_ref_store *refs =
+ files_downcast(ref_store, 0, "create_reflog");
int fd;
- /* Check validity (but we don't need the result): */
- files_downcast(ref_store, 0, "create_reflog");
-
- if (log_ref_setup(refname, force_create, &fd, err))
+ if (log_ref_setup(refs, refname, force_create, &fd, err))
return -1;
if (fd >= 0)
@@ -2875,7 +2894,8 @@ static int log_ref_write_fd(int fd, const unsigned char *old_sha1,
return 0;
}
-int files_log_ref_write(const char *refname, const unsigned char *old_sha1,
+int files_log_ref_write(struct files_ref_store *refs,
+ const char *refname, const unsigned char *old_sha1,
const unsigned char *new_sha1, const char *msg,
int flags, struct strbuf *err)
{
@@ -2884,7 +2904,8 @@ int files_log_ref_write(const char *refname, const unsigned char *old_sha1,
if (log_all_ref_updates == LOG_REFS_UNSET)
log_all_ref_updates = is_bare_repository() ? LOG_REFS_NONE : LOG_REFS_NORMAL;
- result = log_ref_setup(refname, flags & REF_FORCE_CREATE_REFLOG,
+ result = log_ref_setup(refs, refname,
+ flags & REF_FORCE_CREATE_REFLOG,
&logfd, err);
if (result)
@@ -2898,7 +2919,7 @@ int files_log_ref_write(const char *refname, const unsigned char *old_sha1,
struct strbuf sb = STRBUF_INIT;
int save_errno = errno;
- strbuf_git_path(&sb, "logs/%s", refname);
+ files_reflog_path(refs, &sb, refname);
strbuf_addf(err, "unable to append to '%s': %s",
sb.buf, strerror(save_errno));
strbuf_release(&sb);
@@ -2909,7 +2930,7 @@ int files_log_ref_write(const char *refname, const unsigned char *old_sha1,
struct strbuf sb = STRBUF_INIT;
int save_errno = errno;
- strbuf_git_path(&sb, "logs/%s", refname);
+ files_reflog_path(refs, &sb, refname);
strbuf_addf(err, "unable to append to '%s': %s",
sb.buf, strerror(save_errno));
strbuf_release(&sb);
@@ -2970,7 +2991,8 @@ static int commit_ref_update(struct files_ref_store *refs,
files_assert_main_repository(refs, "commit_ref_update");
clear_loose_ref_cache(refs);
- if (files_log_ref_write(lock->ref_name, lock->old_oid.hash, sha1,
+ if (files_log_ref_write(refs, lock->ref_name,
+ lock->old_oid.hash, sha1,
logmsg, 0, err)) {
char *old_msg = strbuf_detach(err, NULL);
strbuf_addf(err, "cannot update the ref '%s': %s",
@@ -3002,8 +3024,9 @@ static int commit_ref_update(struct files_ref_store *refs,
if (head_ref && (head_flag & REF_ISSYMREF) &&
!strcmp(head_ref, lock->ref_name)) {
struct strbuf log_err = STRBUF_INIT;
- if (files_log_ref_write("HEAD", lock->old_oid.hash, sha1,
- logmsg, 0, &log_err)) {
+ if (files_log_ref_write(refs, "HEAD",
+ lock->old_oid.hash, sha1,
+ logmsg, 0, &log_err)) {
error("%s", log_err.buf);
strbuf_release(&log_err);
}
@@ -3035,24 +3058,26 @@ static int create_ref_symlink(struct ref_lock *lock, const char *target)
return ret;
}
-static void update_symref_reflog(struct ref_lock *lock, const char *refname,
+static void update_symref_reflog(struct files_ref_store *refs,
+ struct ref_lock *lock, const char *refname,
const char *target, const char *logmsg)
{
struct strbuf err = STRBUF_INIT;
unsigned char new_sha1[20];
if (logmsg && !read_ref(target, new_sha1) &&
- files_log_ref_write(refname, lock->old_oid.hash, new_sha1,
- logmsg, 0, &err)) {
+ files_log_ref_write(refs, refname, lock->old_oid.hash,
+ new_sha1, logmsg, 0, &err)) {
error("%s", err.buf);
strbuf_release(&err);
}
}
-static int create_symref_locked(struct ref_lock *lock, const char *refname,
+static int create_symref_locked(struct files_ref_store *refs,
+ struct ref_lock *lock, const char *refname,
const char *target, const char *logmsg)
{
if (prefer_symlink_refs && !create_ref_symlink(lock, target)) {
- update_symref_reflog(lock, refname, target, logmsg);
+ update_symref_reflog(refs, lock, refname, target, logmsg);
return 0;
}
@@ -3060,7 +3085,7 @@ static int create_symref_locked(struct ref_lock *lock, const char *refname,
return error("unable to fdopen %s: %s",
lock->lk->tempfile.filename.buf, strerror(errno));
- update_symref_reflog(lock, refname, target, logmsg);
+ update_symref_reflog(refs, lock, refname, target, logmsg);
/* no error check; commit_ref will check ferror */
fprintf(lock->lk->tempfile.fp, "ref: %s\n", target);
@@ -3089,13 +3114,20 @@ static int files_create_symref(struct ref_store *ref_store,
return -1;
}
- ret = create_symref_locked(lock, refname, target, logmsg);
+ ret = create_symref_locked(refs, lock, refname, target, logmsg);
unlock_ref(lock);
return ret;
}
int set_worktree_head_symref(const char *gitdir, const char *target)
{
+ /*
+ * FIXME: this obviously will not work well for future refs
+ * backends. This function needs to die.
+ */
+ struct files_ref_store *refs =
+ files_downcast(get_ref_store(NULL), 0, "set_head_symref");
+
static struct lock_file head_lock;
struct ref_lock *lock;
struct strbuf head_path = STRBUF_INIT;
@@ -3122,7 +3154,7 @@ int set_worktree_head_symref(const char *gitdir, const char *target)
lock->lk = &head_lock;
lock->ref_name = xstrdup(head_rel);
- ret = create_symref_locked(lock, head_rel, target, NULL);
+ ret = create_symref_locked(refs, lock, head_rel, target, NULL);
unlock_ref(lock); /* will free lock */
strbuf_release(&head_path);
@@ -3132,14 +3164,13 @@ int set_worktree_head_symref(const char *gitdir, const char *target)
static int files_reflog_exists(struct ref_store *ref_store,
const char *refname)
{
+ struct files_ref_store *refs =
+ files_downcast(ref_store, 0, "reflog_exists");
struct strbuf sb = STRBUF_INIT;
struct stat st;
int ret;
- /* Check validity (but we don't need the result): */
- files_downcast(ref_store, 0, "reflog_exists");
-
- strbuf_git_path(&sb, "logs/%s", refname);
+ files_reflog_path(refs, &sb, refname);
ret = !lstat(sb.buf, &st) && S_ISREG(st.st_mode);
strbuf_release(&sb);
return ret;
@@ -3148,13 +3179,12 @@ static int files_reflog_exists(struct ref_store *ref_store,
static int files_delete_reflog(struct ref_store *ref_store,
const char *refname)
{
+ struct files_ref_store *refs =
+ files_downcast(ref_store, 0, "delete_reflog");
struct strbuf sb = STRBUF_INIT;
int ret;
- /* Check validity (but we don't need the result): */
- files_downcast(ref_store, 0, "delete_reflog");
-
- strbuf_git_path(&sb, "logs/%s", refname);
+ files_reflog_path(refs, &sb, refname);
ret = remove_path(sb.buf);
strbuf_release(&sb);
return ret;
@@ -3204,15 +3234,14 @@ static int files_for_each_reflog_ent_reverse(struct ref_store *ref_store,
each_reflog_ent_fn fn,
void *cb_data)
{
+ struct files_ref_store *refs =
+ files_downcast(ref_store, 0, "for_each_reflog_ent_reverse");
struct strbuf sb = STRBUF_INIT;
FILE *logfp;
long pos;
int ret = 0, at_tail = 1;
- /* Check validity (but we don't need the result): */
- files_downcast(ref_store, 0, "for_each_reflog_ent_reverse");
-
- strbuf_git_path(&sb, "logs/%s", refname);
+ files_reflog_path(refs, &sb, refname);
logfp = fopen(sb.buf, "r");
strbuf_release(&sb);
if (!logfp)
@@ -3313,14 +3342,13 @@ static int files_for_each_reflog_ent(struct ref_store *ref_store,
const char *refname,
each_reflog_ent_fn fn, void *cb_data)
{
+ struct files_ref_store *refs =
+ files_downcast(ref_store, 0, "for_each_reflog_ent");
FILE *logfp;
struct strbuf sb = STRBUF_INIT;
int ret = 0;
- /* Check validity (but we don't need the result): */
- files_downcast(ref_store, 0, "for_each_reflog_ent");
-
- strbuf_git_path(&sb, "logs/%s", refname);
+ files_reflog_path(refs, &sb, refname);
logfp = fopen(sb.buf, "r");
strbuf_release(&sb);
if (!logfp)
@@ -3402,15 +3430,14 @@ static struct ref_iterator_vtable files_reflog_iterator_vtable = {
static struct ref_iterator *files_reflog_iterator_begin(struct ref_store *ref_store)
{
+ struct files_ref_store *refs =
+ files_downcast(ref_store, 0, "reflog_iterator_begin");
struct files_reflog_iterator *iter = xcalloc(1, sizeof(*iter));
struct ref_iterator *ref_iterator = &iter->base;
struct strbuf sb = STRBUF_INIT;
- /* Check validity (but we don't need the result): */
- files_downcast(ref_store, 0, "reflog_iterator_begin");
-
base_ref_iterator_init(ref_iterator, &files_reflog_iterator_vtable);
- strbuf_git_path(&sb, "logs");
+ files_reflog_path(refs, &sb, NULL);
iter->dir_iterator = dir_iterator_begin(sb.buf);
strbuf_release(&sb);
return ref_iterator;
@@ -3835,7 +3862,8 @@ static int files_transaction_commit(struct ref_store *ref_store,
if (update->flags & REF_NEEDS_COMMIT ||
update->flags & REF_LOG_ONLY) {
- if (files_log_ref_write(lock->ref_name,
+ if (files_log_ref_write(refs,
+ lock->ref_name,
lock->old_oid.hash,
update->new_sha1,
update->msg, update->flags,
@@ -3895,9 +3923,9 @@ static int files_transaction_commit(struct ref_store *ref_store,
/* Delete the reflogs of any references that were deleted: */
for_each_string_list_item(ref_to_delete, &refs_to_delete) {
strbuf_reset(&sb);
- strbuf_git_path(&sb, "logs/%s", ref_to_delete->string);
+ files_reflog_path(refs, &sb, ref_to_delete->string);
if (!unlink_or_warn(sb.buf))
- try_remove_empty_parents(ref_to_delete->string,
+ try_remove_empty_parents(refs, ref_to_delete->string,
REMOVE_EMPTY_PARENTS_REFLOG);
}
@@ -3921,7 +3949,7 @@ static int files_transaction_commit(struct ref_store *ref_store,
* can only work because we have already
* removed the lockfile.)
*/
- try_remove_empty_parents(update->refname,
+ try_remove_empty_parents(refs, update->refname,
REMOVE_EMPTY_PARENTS_REF);
}
}
@@ -4072,6 +4100,7 @@ static int files_reflog_expire(struct ref_store *ref_store,
static struct lock_file reflog_lock;
struct expire_reflog_cb cb;
struct ref_lock *lock;
+ struct strbuf log_file_sb = STRBUF_INIT;
char *log_file;
int status = 0;
int type;
@@ -4100,7 +4129,8 @@ static int files_reflog_expire(struct ref_store *ref_store,
return 0;
}
- log_file = git_pathdup("logs/%s", refname);
+ files_reflog_path(refs, &log_file_sb, refname);
+ log_file = strbuf_detach(&log_file_sb, NULL);
if (!(flags & EXPIRE_REFLOGS_DRY_RUN)) {
/*
* Even though holding $GIT_DIR/logs/$reflog.lock has
--
2.11.0.157.gd943d85
^ permalink raw reply related
* [PATCH v5 08/24] files-backend: remove the use of git_path()
From: Nguyễn Thái Ngọc Duy @ 2017-02-22 14:04 UTC (permalink / raw)
To: git
Cc: Junio C Hamano, Michael Haggerty, Johannes Schindelin,
Ramsay Jones, Stefan Beller, novalis,
Nguyễn Thái Ngọc Duy
In-Reply-To: <20170222140450.30886-1-pclouds@gmail.com>
Given $GIT_DIR and $GIT_COMMON_DIR, files-backend is now in charge of
deciding what goes where (*). The end goal is to pass $GIT_DIR only. A
refs "view" of a linked worktree is a logical ref store that combines
two files backends together.
(*) Not entirely true since strbuf_git_path_submodule() still does path
translation underneath. But that's for another patch.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
refs/files-backend.c | 43 ++++++++++++++++++++++++++++++++++++++-----
1 file changed, 38 insertions(+), 5 deletions(-)
diff --git a/refs/files-backend.c b/refs/files-backend.c
index 72f4e1746..a390eaadf 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -923,7 +923,8 @@ struct files_ref_store {
* store:
*/
const char *submodule;
-
+ char *gitdir;
+ char *gitcommondir;
char *packed_refs_path;
struct ref_entry *loose;
@@ -985,6 +986,8 @@ static struct ref_store *files_ref_store_create(const char *submodule)
{
struct files_ref_store *refs = xcalloc(1, sizeof(*refs));
struct ref_store *ref_store = (struct ref_store *)refs;
+ struct strbuf sb = STRBUF_INIT;
+ const char *gitdir = get_git_dir();
base_ref_store_init(ref_store, &refs_be_files);
@@ -995,7 +998,11 @@ static struct ref_store *files_ref_store_create(const char *submodule)
return ref_store;
}
- refs->packed_refs_path = git_pathdup("packed-refs");
+ refs->gitdir = xstrdup(gitdir);
+ get_common_dir_noenv(&sb, gitdir);
+ refs->gitcommondir = strbuf_detach(&sb, NULL);
+ strbuf_addf(&sb, "%s/packed-refs", refs->gitcommondir);
+ refs->packed_refs_path = strbuf_detach(&sb, NULL);
return ref_store;
}
@@ -1173,11 +1180,26 @@ static void files_reflog_path(struct files_ref_store *refs,
const char *refname)
{
if (!refname) {
- strbuf_git_path(sb, "logs");
+ /*
+ * FIXME: of course this is wrong in multi worktree
+ * setting. To be fixed real soon.
+ */
+ strbuf_addf(sb, "%s/logs", refs->gitcommondir);
return;
}
- strbuf_git_path(sb, "logs/%s", refname);
+ switch (ref_type(refname)) {
+ case REF_TYPE_PER_WORKTREE:
+ case REF_TYPE_PSEUDOREF:
+ strbuf_addf(sb, "%s/logs/%s", refs->gitdir, refname);
+ break;
+ case REF_TYPE_NORMAL:
+ strbuf_addf(sb, "%s/logs/%s", refs->gitcommondir, refname);
+ break;
+ default:
+ die("BUG: unknown ref type %d of ref %s",
+ ref_type(refname), refname);
+ }
}
static void files_refname_path(struct files_ref_store *refs,
@@ -1189,7 +1211,18 @@ static void files_refname_path(struct files_ref_store *refs,
return;
}
- strbuf_git_path(sb, "%s", refname);
+ switch (ref_type(refname)) {
+ case REF_TYPE_PER_WORKTREE:
+ case REF_TYPE_PSEUDOREF:
+ strbuf_addf(sb, "%s/%s", refs->gitdir, refname);
+ break;
+ case REF_TYPE_NORMAL:
+ strbuf_addf(sb, "%s/%s", refs->gitcommondir, refname);
+ break;
+ default:
+ die("BUG: unknown ref type %d of ref %s",
+ ref_type(refname), refname);
+ }
}
/*
--
2.11.0.157.gd943d85
^ permalink raw reply related
* [PATCH v5 09/24] refs.c: introduce get_main_ref_store()
From: Nguyễn Thái Ngọc Duy @ 2017-02-22 14:04 UTC (permalink / raw)
To: git
Cc: Junio C Hamano, Michael Haggerty, Johannes Schindelin,
Ramsay Jones, Stefan Beller, novalis,
Nguyễn Thái Ngọc Duy
In-Reply-To: <20170222140450.30886-1-pclouds@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
refs.c | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/refs.c b/refs.c
index 81b64b4ed..dab1a21ac 100644
--- a/refs.c
+++ b/refs.c
@@ -1456,15 +1456,23 @@ static struct ref_store *ref_store_init(const char *submodule)
return refs;
}
+static struct ref_store *get_main_ref_store(void)
+{
+ struct ref_store *refs;
+
+ if (main_ref_store)
+ return main_ref_store;
+
+ refs = ref_store_init(NULL);
+ return refs;
+}
+
struct ref_store *get_ref_store(const char *submodule)
{
struct ref_store *refs;
if (!submodule || !*submodule) {
- refs = lookup_ref_store(NULL);
-
- if (!refs)
- refs = ref_store_init(NULL);
+ return get_main_ref_store();
} else {
refs = lookup_ref_store(submodule);
--
2.11.0.157.gd943d85
^ permalink raw reply related
* [PATCH v5 10/24] refs: rename lookup_ref_store() to lookup_submodule_ref_store()
From: Nguyễn Thái Ngọc Duy @ 2017-02-22 14:04 UTC (permalink / raw)
To: git
Cc: Junio C Hamano, Michael Haggerty, Johannes Schindelin,
Ramsay Jones, Stefan Beller, novalis,
Nguyễn Thái Ngọc Duy
In-Reply-To: <20170222140450.30886-1-pclouds@gmail.com>
With get_main_ref_store() being used inside get_ref_store(),
lookup_ref_store() is only used for submodule code path. Rename to
reflect that and delete dead code.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
refs.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/refs.c b/refs.c
index dab1a21ac..8b36d97c0 100644
--- a/refs.c
+++ b/refs.c
@@ -1395,17 +1395,13 @@ static struct ref_store *main_ref_store;
static struct hashmap submodule_ref_stores;
/*
- * Return the ref_store instance for the specified submodule (or the
- * main repository if submodule is NULL). If that ref_store hasn't
- * been initialized yet, return NULL.
+ * Return the ref_store instance for the specified submodule. If that
+ * ref_store hasn't been initialized yet, return NULL.
*/
-static struct ref_store *lookup_ref_store(const char *submodule)
+static struct ref_store *lookup_submodule_ref_store(const char *submodule)
{
struct submodule_hash_entry *entry;
- if (!submodule)
- return main_ref_store;
-
if (!submodule_ref_stores.tablesize)
/* It's initialized on demand in register_ref_store(). */
return NULL;
@@ -1474,7 +1470,7 @@ struct ref_store *get_ref_store(const char *submodule)
if (!submodule || !*submodule) {
return get_main_ref_store();
} else {
- refs = lookup_ref_store(submodule);
+ refs = lookup_submodule_ref_store(submodule);
if (!refs) {
struct strbuf submodule_sb = STRBUF_INIT;
@@ -1485,7 +1481,6 @@ struct ref_store *get_ref_store(const char *submodule)
strbuf_release(&submodule_sb);
}
}
-
return refs;
}
--
2.11.0.157.gd943d85
^ permalink raw reply related
* [PATCH v5 12/24] refs.c: kill register_ref_store(), add register_submodule_ref_store()
From: Nguyễn Thái Ngọc Duy @ 2017-02-22 14:04 UTC (permalink / raw)
To: git
Cc: Junio C Hamano, Michael Haggerty, Johannes Schindelin,
Ramsay Jones, Stefan Beller, novalis,
Nguyễn Thái Ngọc Duy
In-Reply-To: <20170222140450.30886-1-pclouds@gmail.com>
This is the last function in this code (besides public API) that takes
submodule argument and handles both main/submodule cases. Break it down,
move main store registration in get_main_ref_store() and keep the rest
in register_submodule_ref_store().
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
refs.c | 50 ++++++++++++++++++++++++++------------------------
1 file changed, 26 insertions(+), 24 deletions(-)
diff --git a/refs.c b/refs.c
index c284cb4f4..6adc38e42 100644
--- a/refs.c
+++ b/refs.c
@@ -1412,29 +1412,6 @@ static struct ref_store *lookup_submodule_ref_store(const char *submodule)
}
/*
- * Register the specified ref_store to be the one that should be used
- * for submodule (or the main repository if submodule is NULL). It is
- * a fatal error to call this function twice for the same submodule.
- */
-static void register_ref_store(struct ref_store *refs, const char *submodule)
-{
- if (!submodule) {
- if (main_ref_store)
- die("BUG: main_ref_store initialized twice");
-
- main_ref_store = refs;
- } else {
- if (!submodule_ref_stores.tablesize)
- hashmap_init(&submodule_ref_stores, submodule_hash_cmp, 0);
-
- if (hashmap_put(&submodule_ref_stores,
- alloc_submodule_hash_entry(submodule, refs)))
- die("BUG: ref_store for submodule '%s' initialized twice",
- submodule);
- }
-}
-
-/*
* Create, record, and return a ref_store instance for the specified
* submodule (or the main repository if submodule is NULL).
*/
@@ -1448,7 +1425,6 @@ static struct ref_store *ref_store_init(const char *submodule)
die("BUG: reference backend %s is unknown", be_name);
refs = be->init(submodule);
- register_ref_store(refs, submodule);
return refs;
}
@@ -1460,9 +1436,32 @@ static struct ref_store *get_main_ref_store(void)
return main_ref_store;
refs = ref_store_init(NULL);
+ if (refs) {
+ if (main_ref_store)
+ die("BUG: main_ref_store initialized twice");
+
+ main_ref_store = refs;
+ }
return refs;
}
+/*
+ * Register the specified ref_store to be the one that should be used
+ * for submodule. It is a fatal error to call this function twice for
+ * the same submodule.
+ */
+static void register_submodule_ref_store(struct ref_store *refs,
+ const char *submodule)
+{
+ if (!submodule_ref_stores.tablesize)
+ hashmap_init(&submodule_ref_stores, submodule_hash_cmp, 0);
+
+ if (hashmap_put(&submodule_ref_stores,
+ alloc_submodule_hash_entry(submodule, refs)))
+ die("BUG: ref_store for submodule '%s' initialized twice",
+ submodule);
+}
+
struct ref_store *get_ref_store(const char *submodule)
{
struct strbuf submodule_sb = STRBUF_INIT;
@@ -1480,6 +1479,9 @@ struct ref_store *get_ref_store(const char *submodule)
if (is_nonbare_repository_dir(&submodule_sb))
refs = ref_store_init(submodule);
strbuf_release(&submodule_sb);
+
+ if (refs)
+ register_submodule_ref_store(refs, submodule);
return refs;
}
--
2.11.0.157.gd943d85
^ permalink raw reply related
* [PATCH v5 11/24] refs.c: flatten get_ref_store() a bit
From: Nguyễn Thái Ngọc Duy @ 2017-02-22 14:04 UTC (permalink / raw)
To: git
Cc: Junio C Hamano, Michael Haggerty, Johannes Schindelin,
Ramsay Jones, Stefan Beller, novalis,
Nguyễn Thái Ngọc Duy
In-Reply-To: <20170222140450.30886-1-pclouds@gmail.com>
This helps the future changes in this code. And because get_ref_store()
is destined to become get_submodule_ref_store(), the "get main store"
code path will be removed eventually. After this the patch to delete
that code will be cleaner.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
refs.c | 19 +++++++++----------
1 file changed, 9 insertions(+), 10 deletions(-)
diff --git a/refs.c b/refs.c
index 8b36d97c0..c284cb4f4 100644
--- a/refs.c
+++ b/refs.c
@@ -1465,22 +1465,21 @@ static struct ref_store *get_main_ref_store(void)
struct ref_store *get_ref_store(const char *submodule)
{
+ struct strbuf submodule_sb = STRBUF_INIT;
struct ref_store *refs;
if (!submodule || !*submodule) {
return get_main_ref_store();
- } else {
- refs = lookup_submodule_ref_store(submodule);
+ }
- if (!refs) {
- struct strbuf submodule_sb = STRBUF_INIT;
+ refs = lookup_submodule_ref_store(submodule);
+ if (refs)
+ return refs;
- strbuf_addstr(&submodule_sb, submodule);
- if (is_nonbare_repository_dir(&submodule_sb))
- refs = ref_store_init(submodule);
- strbuf_release(&submodule_sb);
- }
- }
+ strbuf_addstr(&submodule_sb, submodule);
+ if (is_nonbare_repository_dir(&submodule_sb))
+ refs = ref_store_init(submodule);
+ strbuf_release(&submodule_sb);
return refs;
}
--
2.11.0.157.gd943d85
^ permalink raw reply related
* [PATCH v5 14/24] path.c: move some code out of strbuf_git_path_submodule()
From: Nguyễn Thái Ngọc Duy @ 2017-02-22 14:04 UTC (permalink / raw)
To: git
Cc: Junio C Hamano, Michael Haggerty, Johannes Schindelin,
Ramsay Jones, Stefan Beller, novalis,
Nguyễn Thái Ngọc Duy
In-Reply-To: <20170222140450.30886-1-pclouds@gmail.com>
refs is learning to avoid path rewriting that is done by
strbuf_git_path_submodule(). Factor out this code so it could be reused
by refs*
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
path.c | 34 +++++++---------------------------
submodule.c | 31 +++++++++++++++++++++++++++++++
submodule.h | 1 +
3 files changed, 39 insertions(+), 27 deletions(-)
diff --git a/path.c b/path.c
index efcedafba..3451d2916 100644
--- a/path.c
+++ b/path.c
@@ -475,35 +475,16 @@ const char *worktree_git_path(const struct worktree *wt, const char *fmt, ...)
static int do_submodule_path(struct strbuf *buf, const char *path,
const char *fmt, va_list args)
{
- const char *git_dir;
struct strbuf git_submodule_common_dir = STRBUF_INIT;
struct strbuf git_submodule_dir = STRBUF_INIT;
- const struct submodule *sub;
- int err = 0;
+ int ret;
- strbuf_addstr(buf, path);
- strbuf_complete(buf, '/');
- strbuf_addstr(buf, ".git");
-
- git_dir = read_gitfile(buf->buf);
- if (git_dir) {
- strbuf_reset(buf);
- strbuf_addstr(buf, git_dir);
- }
- if (!is_git_directory(buf->buf)) {
- gitmodules_config();
- sub = submodule_from_path(null_sha1, path);
- if (!sub) {
- err = SUBMODULE_PATH_ERR_NOT_CONFIGURED;
- goto cleanup;
- }
- strbuf_reset(buf);
- strbuf_git_path(buf, "%s/%s", "modules", sub->name);
- }
-
- strbuf_addch(buf, '/');
- strbuf_addbuf(&git_submodule_dir, buf);
+ ret = submodule_to_gitdir(&git_submodule_dir, path);
+ if (ret)
+ goto cleanup;
+ strbuf_complete(&git_submodule_dir, '/');
+ strbuf_addbuf(buf, &git_submodule_dir);
strbuf_vaddf(buf, fmt, args);
if (get_common_dir_noenv(&git_submodule_common_dir, git_submodule_dir.buf))
@@ -514,8 +495,7 @@ static int do_submodule_path(struct strbuf *buf, const char *path,
cleanup:
strbuf_release(&git_submodule_dir);
strbuf_release(&git_submodule_common_dir);
-
- return err;
+ return ret;
}
char *git_pathdup_submodule(const char *path, const char *fmt, ...)
diff --git a/submodule.c b/submodule.c
index 3b98766a6..36b8d1d11 100644
--- a/submodule.c
+++ b/submodule.c
@@ -1514,3 +1514,34 @@ void absorb_git_dir_into_superproject(const char *prefix,
strbuf_release(&sb);
}
}
+
+int submodule_to_gitdir(struct strbuf *buf, const char *submodule)
+{
+ const struct submodule *sub;
+ const char *git_dir;
+ int ret = 0;
+
+ strbuf_reset(buf);
+ strbuf_addstr(buf, submodule);
+ strbuf_complete(buf, '/');
+ strbuf_addstr(buf, ".git");
+
+ git_dir = read_gitfile(buf->buf);
+ if (git_dir) {
+ strbuf_reset(buf);
+ strbuf_addstr(buf, git_dir);
+ }
+ if (!is_git_directory(buf->buf)) {
+ gitmodules_config();
+ sub = submodule_from_path(null_sha1, submodule);
+ if (!sub) {
+ ret = -1;
+ goto cleanup;
+ }
+ strbuf_reset(buf);
+ strbuf_git_path(buf, "%s/%s", "modules", sub->name);
+ }
+
+cleanup:
+ return ret;
+}
diff --git a/submodule.h b/submodule.h
index 05ab674f0..fc3d0303e 100644
--- a/submodule.h
+++ b/submodule.h
@@ -81,6 +81,7 @@ extern int push_unpushed_submodules(struct sha1_array *commits,
int dry_run);
extern void connect_work_tree_and_git_dir(const char *work_tree, const char *git_dir);
extern int parallel_submodules(void);
+int submodule_to_gitdir(struct strbuf *buf, const char *submodule);
/*
* Prepare the "env_array" parameter of a "struct child_process" for executing
--
2.11.0.157.gd943d85
^ permalink raw reply related
* [PATCH v5 13/24] refs.c: make get_main_ref_store() public and use it
From: Nguyễn Thái Ngọc Duy @ 2017-02-22 14:04 UTC (permalink / raw)
To: git
Cc: Junio C Hamano, Michael Haggerty, Johannes Schindelin,
Ramsay Jones, Stefan Beller, novalis,
Nguyễn Thái Ngọc Duy
In-Reply-To: <20170222140450.30886-1-pclouds@gmail.com>
get_ref_store() will soon be renamed to get_submodule_ref_store().
Together with future get_worktree_ref_store(), the three functions
provide an appropriate ref store for different operation modes. New APIs
will be added to operate directly on ref stores.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
refs.c | 36 ++++++++++++++++++------------------
refs.h | 3 +++
refs/files-backend.c | 2 +-
3 files changed, 22 insertions(+), 19 deletions(-)
diff --git a/refs.c b/refs.c
index 6adc38e42..562834fc0 100644
--- a/refs.c
+++ b/refs.c
@@ -1314,7 +1314,7 @@ const char *resolve_ref_recursively(struct ref_store *refs,
/* backend functions */
int refs_init_db(struct strbuf *err)
{
- struct ref_store *refs = get_ref_store(NULL);
+ struct ref_store *refs = get_main_ref_store();
return refs->be->init_db(refs, err);
}
@@ -1322,7 +1322,7 @@ int refs_init_db(struct strbuf *err)
const char *resolve_ref_unsafe(const char *refname, int resolve_flags,
unsigned char *sha1, int *flags)
{
- return resolve_ref_recursively(get_ref_store(NULL), refname,
+ return resolve_ref_recursively(get_main_ref_store(), refname,
resolve_flags, sha1, flags);
}
@@ -1428,7 +1428,7 @@ static struct ref_store *ref_store_init(const char *submodule)
return refs;
}
-static struct ref_store *get_main_ref_store(void)
+struct ref_store *get_main_ref_store(void)
{
struct ref_store *refs;
@@ -1494,14 +1494,14 @@ void base_ref_store_init(struct ref_store *refs,
/* backend functions */
int pack_refs(unsigned int flags)
{
- struct ref_store *refs = get_ref_store(NULL);
+ struct ref_store *refs = get_main_ref_store();
return refs->be->pack_refs(refs, flags);
}
int peel_ref(const char *refname, unsigned char *sha1)
{
- struct ref_store *refs = get_ref_store(NULL);
+ struct ref_store *refs = get_main_ref_store();
return refs->be->peel_ref(refs, refname, sha1);
}
@@ -1509,7 +1509,7 @@ int peel_ref(const char *refname, unsigned char *sha1)
int create_symref(const char *ref_target, const char *refs_heads_master,
const char *logmsg)
{
- struct ref_store *refs = get_ref_store(NULL);
+ struct ref_store *refs = get_main_ref_store();
return refs->be->create_symref(refs, ref_target, refs_heads_master,
logmsg);
@@ -1518,7 +1518,7 @@ int create_symref(const char *ref_target, const char *refs_heads_master,
int ref_transaction_commit(struct ref_transaction *transaction,
struct strbuf *err)
{
- struct ref_store *refs = get_ref_store(NULL);
+ struct ref_store *refs = get_main_ref_store();
return refs->be->transaction_commit(refs, transaction, err);
}
@@ -1528,14 +1528,14 @@ int verify_refname_available(const char *refname,
const struct string_list *skip,
struct strbuf *err)
{
- struct ref_store *refs = get_ref_store(NULL);
+ struct ref_store *refs = get_main_ref_store();
return refs->be->verify_refname_available(refs, refname, extra, skip, err);
}
int for_each_reflog(each_ref_fn fn, void *cb_data)
{
- struct ref_store *refs = get_ref_store(NULL);
+ struct ref_store *refs = get_main_ref_store();
struct ref_iterator *iter;
iter = refs->be->reflog_iterator_begin(refs);
@@ -1546,7 +1546,7 @@ int for_each_reflog(each_ref_fn fn, void *cb_data)
int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn,
void *cb_data)
{
- struct ref_store *refs = get_ref_store(NULL);
+ struct ref_store *refs = get_main_ref_store();
return refs->be->for_each_reflog_ent_reverse(refs, refname,
fn, cb_data);
@@ -1555,14 +1555,14 @@ int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn,
int for_each_reflog_ent(const char *refname, each_reflog_ent_fn fn,
void *cb_data)
{
- struct ref_store *refs = get_ref_store(NULL);
+ struct ref_store *refs = get_main_ref_store();
return refs->be->for_each_reflog_ent(refs, refname, fn, cb_data);
}
int reflog_exists(const char *refname)
{
- struct ref_store *refs = get_ref_store(NULL);
+ struct ref_store *refs = get_main_ref_store();
return refs->be->reflog_exists(refs, refname);
}
@@ -1570,14 +1570,14 @@ int reflog_exists(const char *refname)
int safe_create_reflog(const char *refname, int force_create,
struct strbuf *err)
{
- struct ref_store *refs = get_ref_store(NULL);
+ struct ref_store *refs = get_main_ref_store();
return refs->be->create_reflog(refs, refname, force_create, err);
}
int delete_reflog(const char *refname)
{
- struct ref_store *refs = get_ref_store(NULL);
+ struct ref_store *refs = get_main_ref_store();
return refs->be->delete_reflog(refs, refname);
}
@@ -1589,7 +1589,7 @@ int reflog_expire(const char *refname, const unsigned char *sha1,
reflog_expiry_cleanup_fn cleanup_fn,
void *policy_cb_data)
{
- struct ref_store *refs = get_ref_store(NULL);
+ struct ref_store *refs = get_main_ref_store();
return refs->be->reflog_expire(refs, refname, sha1, flags,
prepare_fn, should_prune_fn,
@@ -1599,21 +1599,21 @@ int reflog_expire(const char *refname, const unsigned char *sha1,
int initial_ref_transaction_commit(struct ref_transaction *transaction,
struct strbuf *err)
{
- struct ref_store *refs = get_ref_store(NULL);
+ struct ref_store *refs = get_main_ref_store();
return refs->be->initial_transaction_commit(refs, transaction, err);
}
int delete_refs(struct string_list *refnames, unsigned int flags)
{
- struct ref_store *refs = get_ref_store(NULL);
+ struct ref_store *refs = get_main_ref_store();
return refs->be->delete_refs(refs, refnames, flags);
}
int rename_ref(const char *oldref, const char *newref, const char *logmsg)
{
- struct ref_store *refs = get_ref_store(NULL);
+ struct ref_store *refs = get_main_ref_store();
return refs->be->rename_ref(refs, oldref, newref, logmsg);
}
diff --git a/refs.h b/refs.h
index c494b641a..29013cb7e 100644
--- a/refs.h
+++ b/refs.h
@@ -2,6 +2,7 @@
#define REFS_H
struct object_id;
+struct ref_store;
struct ref_transaction;
struct strbuf;
struct string_list;
@@ -559,4 +560,6 @@ int reflog_expire(const char *refname, const unsigned char *sha1,
int ref_storage_backend_exists(const char *name);
+struct ref_store *get_main_ref_store(void);
+
#endif /* REFS_H */
diff --git a/refs/files-backend.c b/refs/files-backend.c
index a390eaadf..d80c27837 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -3165,7 +3165,7 @@ int set_worktree_head_symref(const char *gitdir, const char *target)
* backends. This function needs to die.
*/
struct files_ref_store *refs =
- files_downcast(get_ref_store(NULL), 0, "set_head_symref");
+ files_downcast(get_main_ref_store(), 0, "set_head_symref");
static struct lock_file head_lock;
struct ref_lock *lock;
--
2.11.0.157.gd943d85
^ permalink raw reply related
* [PATCH v5 16/24] files-backend: replace submodule_allowed check in files_downcast()
From: Nguyễn Thái Ngọc Duy @ 2017-02-22 14:04 UTC (permalink / raw)
To: git
Cc: Junio C Hamano, Michael Haggerty, Johannes Schindelin,
Ramsay Jones, Stefan Beller, novalis,
Nguyễn Thái Ngọc Duy
In-Reply-To: <20170222140450.30886-1-pclouds@gmail.com>
files-backend.c is unlearning submodules. Instead of having a specific
check for submodules to see what operation is allowed, files backend
now takes a set of flags at init. Each operation will check if the
required flags is present before performing.
For now we have four flags: read, write and odb access. Main ref store
has all flags, obviously, while submodule stores are read-only and have
access to odb (*).
The "main" flag stays because many functions in the backend calls
frontend ones without a ref store, so these functions always target the
main ref store. Ideally the flag should be gone after ref-store-aware
api is in place and used by backends.
(*) Submodule code needs for_each_ref. Try take REF_STORE_ODB flag
out. At least t3404 would fail. The "have access to odb" in submodule is
a bit hacky since we don't know from he whether add_submodule_odb() has
been called.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
refs.c | 15 ++++++---
refs/files-backend.c | 86 +++++++++++++++++++++++++++++++++-------------------
refs/refs-internal.h | 9 +++++-
3 files changed, 73 insertions(+), 37 deletions(-)
diff --git a/refs.c b/refs.c
index 67acae60c..2dc97891a 100644
--- a/refs.c
+++ b/refs.c
@@ -1416,7 +1416,8 @@ static struct ref_store *lookup_submodule_ref_store(const char *submodule)
* Create, record, and return a ref_store instance for the specified
* gitdir.
*/
-static struct ref_store *ref_store_init(const char *gitdir)
+static struct ref_store *ref_store_init(const char *gitdir,
+ unsigned int flags)
{
const char *be_name = "files";
struct ref_storage_be *be = find_ref_storage_backend(be_name);
@@ -1425,7 +1426,7 @@ static struct ref_store *ref_store_init(const char *gitdir)
if (!be)
die("BUG: reference backend %s is unknown", be_name);
- refs = be->init(gitdir);
+ refs = be->init(gitdir, flags);
return refs;
}
@@ -1436,7 +1437,11 @@ struct ref_store *get_main_ref_store(void)
if (main_ref_store)
return main_ref_store;
- refs = ref_store_init(get_git_dir());
+ refs = ref_store_init(get_git_dir(),
+ (REF_STORE_READ |
+ REF_STORE_WRITE |
+ REF_STORE_ODB |
+ REF_STORE_MAIN));
if (refs) {
if (main_ref_store)
die("BUG: main_ref_store initialized twice");
@@ -1485,7 +1490,9 @@ struct ref_store *get_ref_store(const char *submodule)
ret = submodule_to_gitdir(&submodule_sb, submodule);
if (!ret)
- refs = ref_store_init(submodule_sb.buf);
+ /* pretend that add_submodule_odb() has been called */
+ refs = ref_store_init(submodule_sb.buf,
+ REF_STORE_READ | REF_STORE_ODB);
strbuf_release(&submodule_sb);
if (refs)
diff --git a/refs/files-backend.c b/refs/files-backend.c
index 37443369b..474d1027c 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -916,6 +916,7 @@ struct packed_ref_cache {
*/
struct files_ref_store {
struct ref_store base;
+ unsigned int store_flags;
char *gitdir;
char *gitcommondir;
@@ -976,13 +977,15 @@ static void clear_loose_ref_cache(struct files_ref_store *refs)
* Create a new submodule ref cache and add it to the internal
* set of caches.
*/
-static struct ref_store *files_ref_store_create(const char *gitdir)
+static struct ref_store *files_ref_store_create(const char *gitdir,
+ unsigned int flags)
{
struct files_ref_store *refs = xcalloc(1, sizeof(*refs));
struct ref_store *ref_store = (struct ref_store *)refs;
struct strbuf sb = STRBUF_INIT;
base_ref_store_init(ref_store, &refs_be_files);
+ refs->store_flags = flags;
refs->gitdir = xstrdup(gitdir);
get_common_dir_noenv(&sb, gitdir);
@@ -994,13 +997,17 @@ static struct ref_store *files_ref_store_create(const char *gitdir)
}
/*
- * Die if refs is for a submodule (i.e., not for the main repository).
- * caller is used in any necessary error messages.
+ * Die if refs is not the main ref store. caller is used in any
+ * necessary error messages.
*/
static void files_assert_main_repository(struct files_ref_store *refs,
const char *caller)
{
- /* This function is to be deleted in the next patch */
+ if (refs->store_flags & REF_STORE_MAIN)
+ return;
+
+ die("BUG: unallowed operation (%s), only works "
+ "on main ref store\n", caller);
}
/*
@@ -1009,9 +1016,9 @@ static void files_assert_main_repository(struct files_ref_store *refs,
* files_ref_store is for a submodule (i.e., not for the main
* repository). caller is used in any necessary error messages.
*/
-static struct files_ref_store *files_downcast(
- struct ref_store *ref_store, int submodule_allowed,
- const char *caller)
+static struct files_ref_store *files_downcast(struct ref_store *ref_store,
+ unsigned int required_flags,
+ const char *caller)
{
struct files_ref_store *refs;
@@ -1021,8 +1028,9 @@ static struct files_ref_store *files_downcast(
refs = (struct files_ref_store *)ref_store;
- if (!submodule_allowed)
- files_assert_main_repository(refs, caller);
+ if ((refs->store_flags & required_flags) != required_flags)
+ die("BUG: unallowed operation (%s), requires %x, has %x\n",
+ caller, required_flags, refs->store_flags);
return refs;
}
@@ -1404,7 +1412,7 @@ static int files_read_raw_ref(struct ref_store *ref_store,
struct strbuf *referent, unsigned int *type)
{
struct files_ref_store *refs =
- files_downcast(ref_store, 1, "read_raw_ref");
+ files_downcast(ref_store, REF_STORE_READ, "read_raw_ref");
struct strbuf sb_contents = STRBUF_INIT;
struct strbuf sb_path = STRBUF_INIT;
const char *path;
@@ -1821,10 +1829,14 @@ static enum peel_status peel_entry(struct ref_entry *entry, int repeel)
static int files_peel_ref(struct ref_store *ref_store,
const char *refname, unsigned char *sha1)
{
- struct files_ref_store *refs = files_downcast(ref_store, 0, "peel_ref");
+ struct files_ref_store *refs =
+ files_downcast(ref_store, REF_STORE_READ | REF_STORE_ODB,
+ "peel_ref");
int flag;
unsigned char base[20];
+ files_assert_main_repository(refs, "peel_ref");
+
if (current_ref_iter && current_ref_iter->refname == refname) {
struct object_id peeled;
@@ -1929,21 +1941,23 @@ static struct ref_iterator *files_ref_iterator_begin(
struct ref_store *ref_store,
const char *prefix, unsigned int flags)
{
- struct files_ref_store *refs =
- files_downcast(ref_store, 1, "ref_iterator_begin");
+ struct files_ref_store *refs;
struct ref_dir *loose_dir, *packed_dir;
struct ref_iterator *loose_iter, *packed_iter;
struct files_ref_iterator *iter;
struct ref_iterator *ref_iterator;
- if (!refs)
- return empty_ref_iterator_begin();
-
if (ref_paranoia < 0)
ref_paranoia = git_env_bool("GIT_REF_PARANOIA", 0);
if (ref_paranoia)
flags |= DO_FOR_EACH_INCLUDE_BROKEN;
+ refs = files_downcast(ref_store,
+ REF_STORE_READ | (ref_paranoia ? 0 : REF_STORE_ODB),
+ "ref_iterator_begin");
+ if (!refs)
+ return empty_ref_iterator_begin();
+
iter = xcalloc(1, sizeof(*iter));
ref_iterator = &iter->base;
base_ref_iterator_init(ref_iterator, &files_ref_iterator_vtable);
@@ -2424,7 +2438,8 @@ static void prune_refs(struct ref_to_prune *r)
static int files_pack_refs(struct ref_store *ref_store, unsigned int flags)
{
struct files_ref_store *refs =
- files_downcast(ref_store, 0, "pack_refs");
+ files_downcast(ref_store, REF_STORE_WRITE | REF_STORE_ODB,
+ "pack_refs");
struct pack_refs_cb_data cbdata;
memset(&cbdata, 0, sizeof(cbdata));
@@ -2503,7 +2518,7 @@ static int files_delete_refs(struct ref_store *ref_store,
struct string_list *refnames, unsigned int flags)
{
struct files_ref_store *refs =
- files_downcast(ref_store, 0, "delete_refs");
+ files_downcast(ref_store, REF_STORE_WRITE, "delete_refs");
struct strbuf err = STRBUF_INIT;
int i, result = 0;
@@ -2607,7 +2622,7 @@ static int files_verify_refname_available(struct ref_store *ref_store,
struct strbuf *err)
{
struct files_ref_store *refs =
- files_downcast(ref_store, 1, "verify_refname_available");
+ files_downcast(ref_store, REF_STORE_READ, "verify_refname_available");
struct ref_dir *packed_refs = get_packed_refs(refs);
struct ref_dir *loose_refs = get_loose_refs(refs);
@@ -2632,7 +2647,7 @@ static int files_rename_ref(struct ref_store *ref_store,
const char *logmsg)
{
struct files_ref_store *refs =
- files_downcast(ref_store, 0, "rename_ref");
+ files_downcast(ref_store, REF_STORE_WRITE, "rename_ref");
unsigned char sha1[20], orig_sha1[20];
int flag = 0, logmoved = 0;
struct ref_lock *lock;
@@ -2875,7 +2890,7 @@ static int files_create_reflog(struct ref_store *ref_store,
struct strbuf *err)
{
struct files_ref_store *refs =
- files_downcast(ref_store, 0, "create_reflog");
+ files_downcast(ref_store, REF_STORE_WRITE, "create_reflog");
int fd;
if (log_ref_setup(refs, refname, force_create, &fd, err))
@@ -3119,7 +3134,7 @@ static int files_create_symref(struct ref_store *ref_store,
const char *logmsg)
{
struct files_ref_store *refs =
- files_downcast(ref_store, 0, "create_symref");
+ files_downcast(ref_store, REF_STORE_WRITE, "create_symref");
struct strbuf err = STRBUF_INIT;
struct ref_lock *lock;
int ret;
@@ -3145,7 +3160,9 @@ int set_worktree_head_symref(const char *gitdir, const char *target)
* backends. This function needs to die.
*/
struct files_ref_store *refs =
- files_downcast(get_main_ref_store(), 0, "set_head_symref");
+ files_downcast(get_main_ref_store(),
+ REF_STORE_WRITE,
+ "set_head_symref");
static struct lock_file head_lock;
struct ref_lock *lock;
@@ -3184,7 +3201,7 @@ static int files_reflog_exists(struct ref_store *ref_store,
const char *refname)
{
struct files_ref_store *refs =
- files_downcast(ref_store, 0, "reflog_exists");
+ files_downcast(ref_store, REF_STORE_READ, "reflog_exists");
struct strbuf sb = STRBUF_INIT;
struct stat st;
int ret;
@@ -3199,7 +3216,7 @@ static int files_delete_reflog(struct ref_store *ref_store,
const char *refname)
{
struct files_ref_store *refs =
- files_downcast(ref_store, 0, "delete_reflog");
+ files_downcast(ref_store, REF_STORE_WRITE, "delete_reflog");
struct strbuf sb = STRBUF_INIT;
int ret;
@@ -3254,7 +3271,8 @@ static int files_for_each_reflog_ent_reverse(struct ref_store *ref_store,
void *cb_data)
{
struct files_ref_store *refs =
- files_downcast(ref_store, 0, "for_each_reflog_ent_reverse");
+ files_downcast(ref_store, REF_STORE_READ,
+ "for_each_reflog_ent_reverse");
struct strbuf sb = STRBUF_INIT;
FILE *logfp;
long pos;
@@ -3362,7 +3380,8 @@ static int files_for_each_reflog_ent(struct ref_store *ref_store,
each_reflog_ent_fn fn, void *cb_data)
{
struct files_ref_store *refs =
- files_downcast(ref_store, 0, "for_each_reflog_ent");
+ files_downcast(ref_store, REF_STORE_READ,
+ "for_each_reflog_ent");
FILE *logfp;
struct strbuf sb = STRBUF_INIT;
int ret = 0;
@@ -3450,7 +3469,8 @@ static struct ref_iterator_vtable files_reflog_iterator_vtable = {
static struct ref_iterator *files_reflog_iterator_begin(struct ref_store *ref_store)
{
struct files_ref_store *refs =
- files_downcast(ref_store, 0, "reflog_iterator_begin");
+ files_downcast(ref_store, REF_STORE_READ,
+ "reflog_iterator_begin");
struct files_reflog_iterator *iter = xcalloc(1, sizeof(*iter));
struct ref_iterator *ref_iterator = &iter->base;
struct strbuf sb = STRBUF_INIT;
@@ -3788,7 +3808,8 @@ static int files_transaction_commit(struct ref_store *ref_store,
struct strbuf *err)
{
struct files_ref_store *refs =
- files_downcast(ref_store, 0, "ref_transaction_commit");
+ files_downcast(ref_store, REF_STORE_WRITE,
+ "ref_transaction_commit");
int ret = 0, i;
struct string_list refs_to_delete = STRING_LIST_INIT_NODUP;
struct string_list_item *ref_to_delete;
@@ -3993,7 +4014,8 @@ static int files_initial_transaction_commit(struct ref_store *ref_store,
struct strbuf *err)
{
struct files_ref_store *refs =
- files_downcast(ref_store, 0, "initial_ref_transaction_commit");
+ files_downcast(ref_store, REF_STORE_WRITE,
+ "initial_ref_transaction_commit");
int ret = 0, i;
struct string_list affected_refnames = STRING_LIST_INIT_NODUP;
@@ -4115,7 +4137,7 @@ static int files_reflog_expire(struct ref_store *ref_store,
void *policy_cb_data)
{
struct files_ref_store *refs =
- files_downcast(ref_store, 0, "reflog_expire");
+ files_downcast(ref_store, REF_STORE_WRITE, "reflog_expire");
static struct lock_file reflog_lock;
struct expire_reflog_cb cb;
struct ref_lock *lock;
@@ -4221,7 +4243,7 @@ static int files_reflog_expire(struct ref_store *ref_store,
static int files_init_db(struct ref_store *ref_store, struct strbuf *err)
{
struct files_ref_store *refs =
- files_downcast(ref_store, 0, "init_db");
+ files_downcast(ref_store, REF_STORE_WRITE, "init_db");
struct strbuf sb = STRBUF_INIT;
/*
diff --git a/refs/refs-internal.h b/refs/refs-internal.h
index dfa181792..0cca280b5 100644
--- a/refs/refs-internal.h
+++ b/refs/refs-internal.h
@@ -481,12 +481,19 @@ struct ref_store;
/* refs backends */
+/* ref_store_init flags */
+#define REF_STORE_READ (1 << 0)
+#define REF_STORE_WRITE (1 << 1) /* can perform update operations */
+#define REF_STORE_ODB (1 << 2) /* has access to object database */
+#define REF_STORE_MAIN (1 << 3)
+
/*
* Initialize the ref_store for the specified gitdir. These functions
* should call base_ref_store_init() to initialize the shared part of
* the ref_store and to record the ref_store for later lookup.
*/
-typedef struct ref_store *ref_store_init_fn(const char *gitdir);
+typedef struct ref_store *ref_store_init_fn(const char *gitdir,
+ unsigned int flags);
typedef int ref_init_db_fn(struct ref_store *refs, struct strbuf *err);
--
2.11.0.157.gd943d85
^ permalink raw reply related
* [PATCH v5 15/24] refs: move submodule code out of files-backend.c
From: Nguyễn Thái Ngọc Duy @ 2017-02-22 14:04 UTC (permalink / raw)
To: git
Cc: Junio C Hamano, Michael Haggerty, Johannes Schindelin,
Ramsay Jones, Stefan Beller, novalis,
Nguyễn Thái Ngọc Duy
In-Reply-To: <20170222140450.30886-1-pclouds@gmail.com>
files-backend is now initialized with a $GIT_DIR. Converting a submodule
path to where real submodule gitdir is located is done in get_ref_store().
This gives a slight performance improvement for submodules since we
don't convert submodule path to gitdir at every backend call like
before. We pay that once at ref-store creation.
More cleanup in files_downcast() and files_assert_main_repository()
follows shortly. It's separate to keep noises from this patch.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
refs.c | 20 ++++++++++++++------
refs/files-backend.c | 24 ++----------------------
refs/refs-internal.h | 9 ++++-----
3 files changed, 20 insertions(+), 33 deletions(-)
diff --git a/refs.c b/refs.c
index 562834fc0..67acae60c 100644
--- a/refs.c
+++ b/refs.c
@@ -9,6 +9,7 @@
#include "refs/refs-internal.h"
#include "object.h"
#include "tag.h"
+#include "submodule.h"
/*
* List of all available backends
@@ -1413,9 +1414,9 @@ static struct ref_store *lookup_submodule_ref_store(const char *submodule)
/*
* Create, record, and return a ref_store instance for the specified
- * submodule (or the main repository if submodule is NULL).
+ * gitdir.
*/
-static struct ref_store *ref_store_init(const char *submodule)
+static struct ref_store *ref_store_init(const char *gitdir)
{
const char *be_name = "files";
struct ref_storage_be *be = find_ref_storage_backend(be_name);
@@ -1424,7 +1425,7 @@ static struct ref_store *ref_store_init(const char *submodule)
if (!be)
die("BUG: reference backend %s is unknown", be_name);
- refs = be->init(submodule);
+ refs = be->init(gitdir);
return refs;
}
@@ -1435,7 +1436,7 @@ struct ref_store *get_main_ref_store(void)
if (main_ref_store)
return main_ref_store;
- refs = ref_store_init(NULL);
+ refs = ref_store_init(get_git_dir());
if (refs) {
if (main_ref_store)
die("BUG: main_ref_store initialized twice");
@@ -1466,6 +1467,7 @@ struct ref_store *get_ref_store(const char *submodule)
{
struct strbuf submodule_sb = STRBUF_INIT;
struct ref_store *refs;
+ int ret;
if (!submodule || !*submodule) {
return get_main_ref_store();
@@ -1476,8 +1478,14 @@ struct ref_store *get_ref_store(const char *submodule)
return refs;
strbuf_addstr(&submodule_sb, submodule);
- if (is_nonbare_repository_dir(&submodule_sb))
- refs = ref_store_init(submodule);
+ ret = is_nonbare_repository_dir(&submodule_sb);
+ strbuf_release(&submodule_sb);
+ if (!ret)
+ return refs;
+
+ ret = submodule_to_gitdir(&submodule_sb, submodule);
+ if (!ret)
+ refs = ref_store_init(submodule_sb.buf);
strbuf_release(&submodule_sb);
if (refs)
diff --git a/refs/files-backend.c b/refs/files-backend.c
index d80c27837..37443369b 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -917,12 +917,6 @@ struct packed_ref_cache {
struct files_ref_store {
struct ref_store base;
- /*
- * The name of the submodule represented by this object, or
- * NULL if it represents the main repository's reference
- * store:
- */
- const char *submodule;
char *gitdir;
char *gitcommondir;
char *packed_refs_path;
@@ -982,22 +976,14 @@ static void clear_loose_ref_cache(struct files_ref_store *refs)
* Create a new submodule ref cache and add it to the internal
* set of caches.
*/
-static struct ref_store *files_ref_store_create(const char *submodule)
+static struct ref_store *files_ref_store_create(const char *gitdir)
{
struct files_ref_store *refs = xcalloc(1, sizeof(*refs));
struct ref_store *ref_store = (struct ref_store *)refs;
struct strbuf sb = STRBUF_INIT;
- const char *gitdir = get_git_dir();
base_ref_store_init(ref_store, &refs_be_files);
- if (submodule) {
- refs->submodule = xstrdup(submodule);
- refs->packed_refs_path = git_pathdup_submodule(
- refs->submodule, "packed-refs");
- return ref_store;
- }
-
refs->gitdir = xstrdup(gitdir);
get_common_dir_noenv(&sb, gitdir);
refs->gitcommondir = strbuf_detach(&sb, NULL);
@@ -1014,8 +1000,7 @@ static struct ref_store *files_ref_store_create(const char *submodule)
static void files_assert_main_repository(struct files_ref_store *refs,
const char *caller)
{
- if (refs->submodule)
- die("BUG: %s called for a submodule", caller);
+ /* This function is to be deleted in the next patch */
}
/*
@@ -1206,11 +1191,6 @@ static void files_refname_path(struct files_ref_store *refs,
struct strbuf *sb,
const char *refname)
{
- if (refs->submodule) {
- strbuf_git_path_submodule(sb, refs->submodule, "%s", refname);
- return;
- }
-
switch (ref_type(refname)) {
case REF_TYPE_PER_WORKTREE:
case REF_TYPE_PSEUDOREF:
diff --git a/refs/refs-internal.h b/refs/refs-internal.h
index f732473e1..dfa181792 100644
--- a/refs/refs-internal.h
+++ b/refs/refs-internal.h
@@ -482,12 +482,11 @@ struct ref_store;
/* refs backends */
/*
- * Initialize the ref_store for the specified submodule, or for the
- * main repository if submodule == NULL. These functions should call
- * base_ref_store_init() to initialize the shared part of the
- * ref_store and to record the ref_store for later lookup.
+ * Initialize the ref_store for the specified gitdir. These functions
+ * should call base_ref_store_init() to initialize the shared part of
+ * the ref_store and to record the ref_store for later lookup.
*/
-typedef struct ref_store *ref_store_init_fn(const char *submodule);
+typedef struct ref_store *ref_store_init_fn(const char *gitdir);
typedef int ref_init_db_fn(struct ref_store *refs, struct strbuf *err);
--
2.11.0.157.gd943d85
^ permalink raw reply related
* [PATCH v5 17/24] refs: rename get_ref_store() to get_submodule_ref_store() and make it public
From: Nguyễn Thái Ngọc Duy @ 2017-02-22 14:04 UTC (permalink / raw)
To: git
Cc: Junio C Hamano, Michael Haggerty, Johannes Schindelin,
Ramsay Jones, Stefan Beller, novalis,
Nguyễn Thái Ngọc Duy
In-Reply-To: <20170222140450.30886-1-pclouds@gmail.com>
This function is intended to replace *_submodule() refs API. It provides
a ref store for a specific submodule, which can be operated on by a new
set of refs API.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
refs.c | 12 ++++++++----
refs.h | 11 +++++++++++
refs/refs-internal.h | 12 ------------
3 files changed, 19 insertions(+), 16 deletions(-)
diff --git a/refs.c b/refs.c
index 2dc97891a..7843d3085 100644
--- a/refs.c
+++ b/refs.c
@@ -1171,7 +1171,7 @@ int head_ref(each_ref_fn fn, void *cb_data)
static int do_for_each_ref(const char *submodule, const char *prefix,
each_ref_fn fn, int trim, int flags, void *cb_data)
{
- struct ref_store *refs = get_ref_store(submodule);
+ struct ref_store *refs = get_submodule_ref_store(submodule);
struct ref_iterator *iter;
if (!refs)
@@ -1344,10 +1344,10 @@ int resolve_gitlink_ref(const char *submodule, const char *refname,
/* We need to strip off one or more trailing slashes */
char *stripped = xmemdupz(submodule, len);
- refs = get_ref_store(stripped);
+ refs = get_submodule_ref_store(stripped);
free(stripped);
} else {
- refs = get_ref_store(submodule);
+ refs = get_submodule_ref_store(submodule);
}
if (!refs)
@@ -1468,13 +1468,17 @@ static void register_submodule_ref_store(struct ref_store *refs,
submodule);
}
-struct ref_store *get_ref_store(const char *submodule)
+struct ref_store *get_submodule_ref_store(const char *submodule)
{
struct strbuf submodule_sb = STRBUF_INIT;
struct ref_store *refs;
int ret;
if (!submodule || !*submodule) {
+ /*
+ * FIXME: This case is ideally not allowed. But that
+ * can't happen until we clean up all the callers.
+ */
return get_main_ref_store();
}
diff --git a/refs.h b/refs.h
index 29013cb7e..2efba6ba9 100644
--- a/refs.h
+++ b/refs.h
@@ -561,5 +561,16 @@ int reflog_expire(const char *refname, const unsigned char *sha1,
int ref_storage_backend_exists(const char *name);
struct ref_store *get_main_ref_store(void);
+/*
+ * Return the ref_store instance for the specified submodule. For the
+ * main repository, use submodule==NULL; such a call cannot fail. For
+ * a submodule, the submodule must exist and be a nonbare repository,
+ * otherwise return NULL. If the requested reference store has not yet
+ * been initialized, initialize it first.
+ *
+ * For backwards compatibility, submodule=="" is treated the same as
+ * submodule==NULL.
+ */
+struct ref_store *get_submodule_ref_store(const char *submodule);
#endif /* REFS_H */
diff --git a/refs/refs-internal.h b/refs/refs-internal.h
index 0cca280b5..f20dde39e 100644
--- a/refs/refs-internal.h
+++ b/refs/refs-internal.h
@@ -646,18 +646,6 @@ struct ref_store {
void base_ref_store_init(struct ref_store *refs,
const struct ref_storage_be *be);
-/*
- * Return the ref_store instance for the specified submodule. For the
- * main repository, use submodule==NULL; such a call cannot fail. For
- * a submodule, the submodule must exist and be a nonbare repository,
- * otherwise return NULL. If the requested reference store has not yet
- * been initialized, initialize it first.
- *
- * For backwards compatibility, submodule=="" is treated the same as
- * submodule==NULL.
- */
-struct ref_store *get_ref_store(const char *submodule);
-
const char *resolve_ref_recursively(struct ref_store *refs,
const char *refname,
int resolve_flags,
--
2.11.0.157.gd943d85
^ permalink raw reply related
* [PATCH v5 18/24] refs: add new ref-store api
From: Nguyễn Thái Ngọc Duy @ 2017-02-22 14:04 UTC (permalink / raw)
To: git
Cc: Junio C Hamano, Michael Haggerty, Johannes Schindelin,
Ramsay Jones, Stefan Beller, novalis,
Nguyễn Thái Ngọc Duy
In-Reply-To: <20170222140450.30886-1-pclouds@gmail.com>
This is not meant to cover all existing API. It adds enough to test ref
stores with the new test program test-ref-store, coming soon and to be
used by files-backend.c.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
refs.c | 235 +++++++++++++++++++++++++++++++++++++--------------
refs.h | 71 ++++++++++++++++
refs/files-backend.c | 13 +--
refs/refs-internal.h | 31 +------
4 files changed, 253 insertions(+), 97 deletions(-)
diff --git a/refs.c b/refs.c
index 7843d3085..9137ac283 100644
--- a/refs.c
+++ b/refs.c
@@ -185,13 +185,20 @@ struct ref_filter {
void *cb_data;
};
-int read_ref_full(const char *refname, int resolve_flags, unsigned char *sha1, int *flags)
+int refs_read_ref_full(struct ref_store *refs, const char *refname,
+ int resolve_flags, unsigned char *sha1, int *flags)
{
- if (resolve_ref_unsafe(refname, resolve_flags, sha1, flags))
+ if (refs_resolve_ref_unsafe(refs, refname, resolve_flags, sha1, flags))
return 0;
return -1;
}
+int read_ref_full(const char *refname, int resolve_flags, unsigned char *sha1, int *flags)
+{
+ return refs_read_ref_full(get_main_ref_store(), refname,
+ resolve_flags, sha1, flags);
+}
+
int read_ref(const char *refname, unsigned char *sha1)
{
return read_ref_full(refname, RESOLVE_REF_READING, sha1, NULL);
@@ -286,34 +293,52 @@ void warn_dangling_symrefs(FILE *fp, const char *msg_fmt, const struct string_li
for_each_rawref(warn_if_dangling_symref, &data);
}
+int refs_for_each_tag_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data)
+{
+ return refs_for_each_ref_in(refs, "refs/tags/", fn, cb_data);
+}
+
int for_each_tag_ref(each_ref_fn fn, void *cb_data)
{
- return for_each_ref_in("refs/tags/", fn, cb_data);
+ return refs_for_each_tag_ref(get_main_ref_store(), fn, cb_data);
}
int for_each_tag_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
{
- return for_each_ref_in_submodule(submodule, "refs/tags/", fn, cb_data);
+ return refs_for_each_tag_ref(get_submodule_ref_store(submodule),
+ fn, cb_data);
+}
+
+int refs_for_each_branch_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data)
+{
+ return refs_for_each_ref_in(refs, "refs/heads/", fn, cb_data);
}
int for_each_branch_ref(each_ref_fn fn, void *cb_data)
{
- return for_each_ref_in("refs/heads/", fn, cb_data);
+ return refs_for_each_branch_ref(get_main_ref_store(), fn, cb_data);
}
int for_each_branch_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
{
- return for_each_ref_in_submodule(submodule, "refs/heads/", fn, cb_data);
+ return refs_for_each_branch_ref(get_submodule_ref_store(submodule),
+ fn, cb_data);
+}
+
+int refs_for_each_remote_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data)
+{
+ return refs_for_each_ref_in(refs, "refs/remotes/", fn, cb_data);
}
int for_each_remote_ref(each_ref_fn fn, void *cb_data)
{
- return for_each_ref_in("refs/remotes/", fn, cb_data);
+ return refs_for_each_remote_ref(get_main_ref_store(), fn, cb_data);
}
int for_each_remote_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
{
- return for_each_ref_in_submodule(submodule, "refs/remotes/", fn, cb_data);
+ return refs_for_each_remote_ref(get_submodule_ref_store(submodule),
+ fn, cb_data);
}
int head_ref_namespaced(each_ref_fn fn, void *cb_data)
@@ -1120,14 +1145,17 @@ const char *find_descendant_ref(const char *dirname,
return NULL;
}
-int rename_ref_available(const char *old_refname, const char *new_refname)
+int refs_rename_ref_available(struct ref_store *refs,
+ const char *old_refname,
+ const char *new_refname)
{
struct string_list skip = STRING_LIST_INIT_NODUP;
struct strbuf err = STRBUF_INIT;
int ok;
string_list_insert(&skip, old_refname);
- ok = !verify_refname_available(new_refname, NULL, &skip, &err);
+ ok = !refs_verify_refname_available(refs, new_refname,
+ NULL, &skip, &err);
if (!ok)
error("%s", err.buf);
@@ -1168,10 +1196,9 @@ int head_ref(each_ref_fn fn, void *cb_data)
* non-zero value, stop the iteration and return that value;
* otherwise, return 0.
*/
-static int do_for_each_ref(const char *submodule, const char *prefix,
+static int do_for_each_ref(struct ref_store *refs, const char *prefix,
each_ref_fn fn, int trim, int flags, void *cb_data)
{
- struct ref_store *refs = get_submodule_ref_store(submodule);
struct ref_iterator *iter;
if (!refs)
@@ -1183,19 +1210,30 @@ static int do_for_each_ref(const char *submodule, const char *prefix,
return do_for_each_ref_iterator(iter, fn, cb_data);
}
+int refs_for_each_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data)
+{
+ return do_for_each_ref(refs, "", fn, 0, 0, cb_data);
+}
+
int for_each_ref(each_ref_fn fn, void *cb_data)
{
- return do_for_each_ref(NULL, "", fn, 0, 0, cb_data);
+ return refs_for_each_ref(get_main_ref_store(), fn, cb_data);
}
int for_each_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
{
- return do_for_each_ref(submodule, "", fn, 0, 0, cb_data);
+ return refs_for_each_ref(get_submodule_ref_store(submodule), fn, cb_data);
+}
+
+int refs_for_each_ref_in(struct ref_store *refs, const char *prefix,
+ each_ref_fn fn, void *cb_data)
+{
+ return do_for_each_ref(refs, prefix, fn, strlen(prefix), 0, cb_data);
}
int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data)
{
- return do_for_each_ref(NULL, prefix, fn, strlen(prefix), 0, cb_data);
+ return refs_for_each_ref_in(get_main_ref_store(), prefix, fn, cb_data);
}
int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data, unsigned int broken)
@@ -1204,19 +1242,23 @@ int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data, unsig
if (broken)
flag = DO_FOR_EACH_INCLUDE_BROKEN;
- return do_for_each_ref(NULL, prefix, fn, 0, flag, cb_data);
+ return do_for_each_ref(get_main_ref_store(),
+ prefix, fn, 0, flag, cb_data);
}
int for_each_ref_in_submodule(const char *submodule, const char *prefix,
- each_ref_fn fn, void *cb_data)
+ each_ref_fn fn, void *cb_data)
{
- return do_for_each_ref(submodule, prefix, fn, strlen(prefix), 0, cb_data);
+ return refs_for_each_ref_in(get_submodule_ref_store(submodule),
+ prefix, fn, cb_data);
}
int for_each_replace_ref(each_ref_fn fn, void *cb_data)
{
- return do_for_each_ref(NULL, git_replace_ref_base, fn,
- strlen(git_replace_ref_base), 0, cb_data);
+ return do_for_each_ref(get_main_ref_store(),
+ git_replace_ref_base, fn,
+ strlen(git_replace_ref_base),
+ 0, cb_data);
}
int for_each_namespaced_ref(each_ref_fn fn, void *cb_data)
@@ -1224,19 +1266,25 @@ int for_each_namespaced_ref(each_ref_fn fn, void *cb_data)
struct strbuf buf = STRBUF_INIT;
int ret;
strbuf_addf(&buf, "%srefs/", get_git_namespace());
- ret = do_for_each_ref(NULL, buf.buf, fn, 0, 0, cb_data);
+ ret = do_for_each_ref(get_main_ref_store(),
+ buf.buf, fn, 0, 0, cb_data);
strbuf_release(&buf);
return ret;
}
-int for_each_rawref(each_ref_fn fn, void *cb_data)
+int refs_for_each_rawref(struct ref_store *refs, each_ref_fn fn, void *cb_data)
{
- return do_for_each_ref(NULL, "", fn, 0,
+ return do_for_each_ref(refs, "", fn, 0,
DO_FOR_EACH_INCLUDE_BROKEN, cb_data);
}
+int for_each_rawref(each_ref_fn fn, void *cb_data)
+{
+ return refs_for_each_rawref(get_main_ref_store(), fn, cb_data);
+}
+
/* This function needs to return a meaningful errno on failure */
-const char *resolve_ref_recursively(struct ref_store *refs,
+const char *refs_resolve_ref_unsafe(struct ref_store *refs,
const char *refname,
int resolve_flags,
unsigned char *sha1, int *flags)
@@ -1323,7 +1371,7 @@ int refs_init_db(struct strbuf *err)
const char *resolve_ref_unsafe(const char *refname, int resolve_flags,
unsigned char *sha1, int *flags)
{
- return resolve_ref_recursively(get_main_ref_store(), refname,
+ return refs_resolve_ref_unsafe(get_main_ref_store(), refname,
resolve_flags, sha1, flags);
}
@@ -1353,7 +1401,7 @@ int resolve_gitlink_ref(const char *submodule, const char *refname,
if (!refs)
return -1;
- if (!resolve_ref_recursively(refs, refname, 0, sha1, &flags) ||
+ if (!refs_resolve_ref_unsafe(refs, refname, 0, sha1, &flags) ||
is_null_sha1(sha1))
return -1;
return 0;
@@ -1511,27 +1559,42 @@ void base_ref_store_init(struct ref_store *refs,
}
/* backend functions */
+int refs_pack_refs(struct ref_store *refs, unsigned int flags)
+{
+ return refs->be->pack_refs(refs, flags);
+}
+
int pack_refs(unsigned int flags)
{
- struct ref_store *refs = get_main_ref_store();
+ return refs_pack_refs(get_main_ref_store(), flags);
+}
- return refs->be->pack_refs(refs, flags);
+int refs_peel_ref(struct ref_store *refs, const char *refname,
+ unsigned char *sha1)
+{
+ return refs->be->peel_ref(refs, refname, sha1);
}
int peel_ref(const char *refname, unsigned char *sha1)
{
- struct ref_store *refs = get_main_ref_store();
+ return refs_peel_ref(get_main_ref_store(), refname, sha1);
+}
- return refs->be->peel_ref(refs, refname, sha1);
+int refs_create_symref(struct ref_store *refs,
+ const char *ref_target,
+ const char *refs_heads_master,
+ const char *logmsg)
+{
+ return refs->be->create_symref(refs, ref_target,
+ refs_heads_master,
+ logmsg);
}
int create_symref(const char *ref_target, const char *refs_heads_master,
const char *logmsg)
{
- struct ref_store *refs = get_main_ref_store();
-
- return refs->be->create_symref(refs, ref_target, refs_heads_master,
- logmsg);
+ return refs_create_symref(get_main_ref_store(), ref_target,
+ refs_heads_master, logmsg);
}
int ref_transaction_commit(struct ref_transaction *transaction,
@@ -1542,19 +1605,17 @@ int ref_transaction_commit(struct ref_transaction *transaction,
return refs->be->transaction_commit(refs, transaction, err);
}
-int verify_refname_available(const char *refname,
- const struct string_list *extra,
- const struct string_list *skip,
- struct strbuf *err)
+int refs_verify_refname_available(struct ref_store *refs,
+ const char *refname,
+ const struct string_list *extra,
+ const struct string_list *skip,
+ struct strbuf *err)
{
- struct ref_store *refs = get_main_ref_store();
-
return refs->be->verify_refname_available(refs, refname, extra, skip, err);
}
-int for_each_reflog(each_ref_fn fn, void *cb_data)
+int refs_for_each_reflog(struct ref_store *refs, each_ref_fn fn, void *cb_data)
{
- struct ref_store *refs = get_main_ref_store();
struct ref_iterator *iter;
iter = refs->be->reflog_iterator_begin(refs);
@@ -1562,43 +1623,84 @@ int for_each_reflog(each_ref_fn fn, void *cb_data)
return do_for_each_ref_iterator(iter, fn, cb_data);
}
-int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn,
- void *cb_data)
+int for_each_reflog(each_ref_fn fn, void *cb_data)
{
- struct ref_store *refs = get_main_ref_store();
+ return refs_for_each_reflog(get_main_ref_store(), fn, cb_data);
+}
+int refs_for_each_reflog_ent_reverse(struct ref_store *refs,
+ const char *refname,
+ each_reflog_ent_fn fn,
+ void *cb_data)
+{
return refs->be->for_each_reflog_ent_reverse(refs, refname,
fn, cb_data);
}
+int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn,
+ void *cb_data)
+{
+ return refs_for_each_reflog_ent_reverse(get_main_ref_store(),
+ refname, fn, cb_data);
+}
+
+int refs_for_each_reflog_ent(struct ref_store *refs, const char *refname,
+ each_reflog_ent_fn fn, void *cb_data)
+{
+ return refs->be->for_each_reflog_ent(refs, refname, fn, cb_data);
+}
+
int for_each_reflog_ent(const char *refname, each_reflog_ent_fn fn,
void *cb_data)
{
- struct ref_store *refs = get_main_ref_store();
+ return refs_for_each_reflog_ent(get_main_ref_store(), refname,
+ fn, cb_data);
+}
- return refs->be->for_each_reflog_ent(refs, refname, fn, cb_data);
+int refs_reflog_exists(struct ref_store *refs, const char *refname)
+{
+ return refs->be->reflog_exists(refs, refname);
}
int reflog_exists(const char *refname)
{
- struct ref_store *refs = get_main_ref_store();
+ return refs_reflog_exists(get_main_ref_store(), refname);
+}
- return refs->be->reflog_exists(refs, refname);
+int refs_create_reflog(struct ref_store *refs, const char *refname,
+ int force_create, struct strbuf *err)
+{
+ return refs->be->create_reflog(refs, refname, force_create, err);
}
int safe_create_reflog(const char *refname, int force_create,
struct strbuf *err)
{
- struct ref_store *refs = get_main_ref_store();
+ return refs_create_reflog(get_main_ref_store(), refname,
+ force_create, err);
+}
- return refs->be->create_reflog(refs, refname, force_create, err);
+int refs_delete_reflog(struct ref_store *refs, const char *refname)
+{
+ return refs->be->delete_reflog(refs, refname);
}
int delete_reflog(const char *refname)
{
- struct ref_store *refs = get_main_ref_store();
+ return refs_delete_reflog(get_main_ref_store(), refname);
+}
- return refs->be->delete_reflog(refs, refname);
+int refs_reflog_expire(struct ref_store *refs,
+ const char *refname, const unsigned char *sha1,
+ unsigned int flags,
+ reflog_expiry_prepare_fn prepare_fn,
+ reflog_expiry_should_prune_fn should_prune_fn,
+ reflog_expiry_cleanup_fn cleanup_fn,
+ void *policy_cb_data)
+{
+ return refs->be->reflog_expire(refs, refname, sha1, flags,
+ prepare_fn, should_prune_fn,
+ cleanup_fn, policy_cb_data);
}
int reflog_expire(const char *refname, const unsigned char *sha1,
@@ -1608,11 +1710,10 @@ int reflog_expire(const char *refname, const unsigned char *sha1,
reflog_expiry_cleanup_fn cleanup_fn,
void *policy_cb_data)
{
- struct ref_store *refs = get_main_ref_store();
-
- return refs->be->reflog_expire(refs, refname, sha1, flags,
- prepare_fn, should_prune_fn,
- cleanup_fn, policy_cb_data);
+ return refs_reflog_expire(get_main_ref_store(),
+ refname, sha1, flags,
+ prepare_fn, should_prune_fn,
+ cleanup_fn, policy_cb_data);
}
int initial_ref_transaction_commit(struct ref_transaction *transaction,
@@ -1623,16 +1724,24 @@ int initial_ref_transaction_commit(struct ref_transaction *transaction,
return refs->be->initial_transaction_commit(refs, transaction, err);
}
-int delete_refs(struct string_list *refnames, unsigned int flags)
+int refs_delete_refs(struct ref_store *refs, struct string_list *refnames,
+ unsigned int flags)
{
- struct ref_store *refs = get_main_ref_store();
-
return refs->be->delete_refs(refs, refnames, flags);
}
-int rename_ref(const char *oldref, const char *newref, const char *logmsg)
+int delete_refs(struct string_list *refnames, unsigned int flags)
{
- struct ref_store *refs = get_main_ref_store();
+ return refs_delete_refs(get_main_ref_store(), refnames, flags);
+}
+int refs_rename_ref(struct ref_store *refs, const char *oldref,
+ const char *newref, const char *logmsg)
+{
return refs->be->rename_ref(refs, oldref, newref, logmsg);
}
+
+int rename_ref(const char *oldref, const char *newref, const char *logmsg)
+{
+ return refs_rename_ref(get_main_ref_store(), oldref, newref, logmsg);
+}
diff --git a/refs.h b/refs.h
index 2efba6ba9..70d4eb87c 100644
--- a/refs.h
+++ b/refs.h
@@ -58,16 +58,47 @@ struct string_list;
#define RESOLVE_REF_NO_RECURSE 0x02
#define RESOLVE_REF_ALLOW_BAD_NAME 0x04
+const char *refs_resolve_ref_unsafe(struct ref_store *refs,
+ const char *refname,
+ int resolve_flags,
+ unsigned char *sha1,
+ int *flags);
const char *resolve_ref_unsafe(const char *refname, int resolve_flags,
unsigned char *sha1, int *flags);
char *resolve_refdup(const char *refname, int resolve_flags,
unsigned char *sha1, int *flags);
+int refs_read_ref_full(struct ref_store *refs, const char *refname,
+ int resolve_flags, unsigned char *sha1, int *flags);
int read_ref_full(const char *refname, int resolve_flags,
unsigned char *sha1, int *flags);
int read_ref(const char *refname, unsigned char *sha1);
+/*
+ * Return 0 if a reference named refname could be created without
+ * conflicting with the name of an existing reference. Otherwise,
+ * return a negative value and write an explanation to err. If extras
+ * is non-NULL, it is a list of additional refnames with which refname
+ * is not allowed to conflict. If skip is non-NULL, ignore potential
+ * conflicts with refs in skip (e.g., because they are scheduled for
+ * deletion in the same operation). Behavior is undefined if the same
+ * name is listed in both extras and skip.
+ *
+ * Two reference names conflict if one of them exactly matches the
+ * leading components of the other; e.g., "foo/bar" conflicts with
+ * both "foo" and with "foo/bar/baz" but not with "foo/bar" or
+ * "foo/barbados".
+ *
+ * extras and skip must be sorted.
+ */
+
+int refs_verify_refname_available(struct ref_store *refs,
+ const char *refname,
+ const struct string_list *extra,
+ const struct string_list *skip,
+ struct strbuf *err);
+
int ref_exists(const char *refname);
int should_autocreate_reflog(const char *refname);
@@ -84,6 +115,8 @@ extern int refs_init_db(struct strbuf *err);
* Symbolic references are considered unpeelable, even if they
* ultimately resolve to a peelable tag.
*/
+int refs_peel_ref(struct ref_store *refs, const char *refname,
+ unsigned char *sha1);
int peel_ref(const char *refname, unsigned char *sha1);
/**
@@ -196,6 +229,17 @@ typedef int each_ref_fn(const char *refname,
* modifies the reference also returns a nonzero value to immediately
* stop the iteration.
*/
+int refs_for_each_ref(struct ref_store *refs,
+ each_ref_fn fn, void *cb_data);
+int refs_for_each_ref_in(struct ref_store *refs, const char *prefix,
+ each_ref_fn fn, void *cb_data);
+int refs_for_each_tag_ref(struct ref_store *refs,
+ each_ref_fn fn, void *cb_data);
+int refs_for_each_branch_ref(struct ref_store *refs,
+ each_ref_fn fn, void *cb_data);
+int refs_for_each_remote_ref(struct ref_store *refs,
+ each_ref_fn fn, void *cb_data);
+
int head_ref(each_ref_fn fn, void *cb_data);
int for_each_ref(each_ref_fn fn, void *cb_data);
int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data);
@@ -225,6 +269,7 @@ int head_ref_namespaced(each_ref_fn fn, void *cb_data);
int for_each_namespaced_ref(each_ref_fn fn, void *cb_data);
/* can be used to learn about broken ref and symref */
+int refs_for_each_rawref(struct ref_store *refs, each_ref_fn fn, void *cb_data);
int for_each_rawref(each_ref_fn fn, void *cb_data);
static inline const char *has_glob_specials(const char *pattern)
@@ -248,6 +293,7 @@ void warn_dangling_symrefs(FILE *fp, const char *msg_fmt,
* Write a packed-refs file for the current repository.
* flags: Combination of the above PACK_REFS_* flags.
*/
+int refs_pack_refs(struct ref_store *refs, unsigned int flags);
int pack_refs(unsigned int flags);
/*
@@ -263,6 +309,8 @@ int pack_refs(unsigned int flags);
/*
* Setup reflog before using. Fill in err and return -1 on failure.
*/
+int refs_create_reflog(struct ref_store *refs, const char *refname,
+ int force_create, struct strbuf *err);
int safe_create_reflog(const char *refname, int force_create, struct strbuf *err);
/** Reads log for the value of ref during at_time. **/
@@ -272,6 +320,7 @@ int read_ref_at(const char *refname, unsigned int flags,
unsigned long *cutoff_time, int *cutoff_tz, int *cutoff_cnt);
/** Check if a particular reflog exists */
+int refs_reflog_exists(struct ref_store *refs, const char *refname);
int reflog_exists(const char *refname);
/*
@@ -290,9 +339,12 @@ int delete_ref(const char *refname, const unsigned char *old_sha1,
* an all-or-nothing transaction). flags is passed through to
* ref_transaction_delete().
*/
+int refs_delete_refs(struct ref_store *refs, struct string_list *refnames,
+ unsigned int flags);
int delete_refs(struct string_list *refnames, unsigned int flags);
/** Delete a reflog */
+int refs_delete_reflog(struct ref_store *refs, const char *refname);
int delete_reflog(const char *refname);
/* iterate over reflog entries */
@@ -301,6 +353,12 @@ typedef int each_reflog_ent_fn(
const char *committer, unsigned long timestamp,
int tz, const char *msg, void *cb_data);
+int refs_for_each_reflog_ent(struct ref_store *refs, const char *refname,
+ each_reflog_ent_fn fn, void *cb_data);
+int refs_for_each_reflog_ent_reverse(struct ref_store *refs,
+ const char *refname,
+ each_reflog_ent_fn fn,
+ void *cb_data);
int for_each_reflog_ent(const char *refname, each_reflog_ent_fn fn, void *cb_data);
int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn, void *cb_data);
@@ -308,6 +366,7 @@ int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn, void
* Calls the specified function for each reflog file until it returns nonzero,
* and returns the value
*/
+int refs_for_each_reflog(struct ref_store *refs, each_ref_fn fn, void *cb_data);
int for_each_reflog(each_ref_fn fn, void *cb_data);
#define REFNAME_ALLOW_ONELEVEL 1
@@ -328,8 +387,12 @@ const char *prettify_refname(const char *refname);
char *shorten_unambiguous_ref(const char *refname, int strict);
/** rename ref, return 0 on success **/
+int refs_rename_ref(struct ref_store *refs, const char *oldref,
+ const char *newref, const char *logmsg);
int rename_ref(const char *oldref, const char *newref, const char *logmsg);
+int refs_create_symref(struct ref_store *refs, const char *refname,
+ const char *target, const char *logmsg);
int create_symref(const char *refname, const char *target, const char *logmsg);
/*
@@ -551,6 +614,14 @@ typedef void reflog_expiry_cleanup_fn(void *cb_data);
* enum expire_reflog_flags. The three function pointers are described
* above. On success, return zero.
*/
+int refs_reflog_expire(struct ref_store *refs,
+ const char *refname,
+ const unsigned char *sha1,
+ unsigned int flags,
+ reflog_expiry_prepare_fn prepare_fn,
+ reflog_expiry_should_prune_fn should_prune_fn,
+ reflog_expiry_cleanup_fn cleanup_fn,
+ void *policy_cb_data);
int reflog_expire(const char *refname, const unsigned char *sha1,
unsigned int flags,
reflog_expiry_prepare_fn prepare_fn,
diff --git a/refs/files-backend.c b/refs/files-backend.c
index 474d1027c..dafddefd3 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -1320,7 +1320,7 @@ static void read_loose_refs(const char *dirname, struct ref_dir *dir)
create_dir_entry(refs, refname.buf,
refname.len, 1));
} else {
- if (!resolve_ref_recursively(&refs->base,
+ if (!refs_resolve_ref_unsafe(&refs->base,
refname.buf,
RESOLVE_REF_READING,
sha1, &flag)) {
@@ -1629,7 +1629,8 @@ static int lock_raw_ref(struct files_ref_store *refs,
* another reference such as "refs/foo". There is no
* reason to expect this error to be transitory.
*/
- if (verify_refname_available(refname, extras, skip, err)) {
+ if (refs_verify_refname_available(&refs->base, refname,
+ extras, skip, err)) {
if (mustexist) {
/*
* To the user the relevant error is
@@ -2671,7 +2672,7 @@ static int files_rename_ref(struct ref_store *ref_store,
if (flag & REF_ISSYMREF)
return error("refname %s is a symbolic ref, renaming it is not supported",
oldrefname);
- if (!rename_ref_available(oldrefname, newrefname))
+ if (!refs_rename_ref_available(&refs->base, oldrefname, newrefname))
return 1;
files_reflog_path(refs, &sb_oldref, oldrefname);
@@ -4055,9 +4056,9 @@ static int files_initial_transaction_commit(struct ref_store *ref_store,
if ((update->flags & REF_HAVE_OLD) &&
!is_null_sha1(update->old_sha1))
die("BUG: initial ref transaction with old_sha1 set");
- if (verify_refname_available(update->refname,
- &affected_refnames, NULL,
- err)) {
+ if (refs_verify_refname_available(&refs->base, update->refname,
+ &affected_refnames, NULL,
+ err)) {
ret = TRANSACTION_NAME_CONFLICT;
goto cleanup;
}
diff --git a/refs/refs-internal.h b/refs/refs-internal.h
index f20dde39e..5f26208c2 100644
--- a/refs/refs-internal.h
+++ b/refs/refs-internal.h
@@ -112,28 +112,6 @@ enum peel_status {
enum peel_status peel_object(const unsigned char *name, unsigned char *sha1);
/*
- * Return 0 if a reference named refname could be created without
- * conflicting with the name of an existing reference. Otherwise,
- * return a negative value and write an explanation to err. If extras
- * is non-NULL, it is a list of additional refnames with which refname
- * is not allowed to conflict. If skip is non-NULL, ignore potential
- * conflicts with refs in skip (e.g., because they are scheduled for
- * deletion in the same operation). Behavior is undefined if the same
- * name is listed in both extras and skip.
- *
- * Two reference names conflict if one of them exactly matches the
- * leading components of the other; e.g., "foo/bar" conflicts with
- * both "foo" and with "foo/bar/baz" but not with "foo/bar" or
- * "foo/barbados".
- *
- * extras and skip must be sorted.
- */
-int verify_refname_available(const char *newname,
- const struct string_list *extras,
- const struct string_list *skip,
- struct strbuf *err);
-
-/*
* Copy the reflog message msg to buf, which has been allocated sufficiently
* large, while cleaning up the whitespaces. Especially, convert LF to space,
* because reflog file is one line per entry.
@@ -252,7 +230,9 @@ const char *find_descendant_ref(const char *dirname,
* processes (though rename_ref() catches some races that might get by
* this check).
*/
-int rename_ref_available(const char *old_refname, const char *new_refname);
+int refs_rename_ref_available(struct ref_store *refs,
+ const char *old_refname,
+ const char *new_refname);
/* We allow "recursive" symbolic refs. Only within reason, though */
#define SYMREF_MAXDEPTH 5
@@ -646,9 +626,4 @@ struct ref_store {
void base_ref_store_init(struct ref_store *refs,
const struct ref_storage_be *be);
-const char *resolve_ref_recursively(struct ref_store *refs,
- const char *refname,
- int resolve_flags,
- unsigned char *sha1, int *flags);
-
#endif /* REFS_REFS_INTERNAL_H */
--
2.11.0.157.gd943d85
^ permalink raw reply related
* [PATCH v5 19/24] refs: new transaction related ref-store api
From: Nguyễn Thái Ngọc Duy @ 2017-02-22 14:04 UTC (permalink / raw)
To: git
Cc: Junio C Hamano, Michael Haggerty, Johannes Schindelin,
Ramsay Jones, Stefan Beller, novalis,
Nguyễn Thái Ngọc Duy
In-Reply-To: <20170222140450.30886-1-pclouds@gmail.com>
The transaction struct now takes a ref store at creation and will
operate on that ref store alone.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
refs.c | 54 ++++++++++++++++++++++++++++++++++++++++------------
refs.h | 8 ++++++++
refs/refs-internal.h | 1 +
3 files changed, 51 insertions(+), 12 deletions(-)
diff --git a/refs.c b/refs.c
index 9137ac283..851b5e125 100644
--- a/refs.c
+++ b/refs.c
@@ -618,16 +618,19 @@ static int delete_pseudoref(const char *pseudoref, const unsigned char *old_sha1
return 0;
}
-int delete_ref(const char *refname, const unsigned char *old_sha1,
- unsigned int flags)
+int refs_delete_ref(struct ref_store *refs, const char *refname,
+ const unsigned char *old_sha1,
+ unsigned int flags)
{
struct ref_transaction *transaction;
struct strbuf err = STRBUF_INIT;
- if (ref_type(refname) == REF_TYPE_PSEUDOREF)
+ if (ref_type(refname) == REF_TYPE_PSEUDOREF) {
+ assert(refs == get_main_ref_store());
return delete_pseudoref(refname, old_sha1);
+ }
- transaction = ref_transaction_begin(&err);
+ transaction = ref_store_transaction_begin(refs, &err);
if (!transaction ||
ref_transaction_delete(transaction, refname, old_sha1,
flags, NULL, &err) ||
@@ -642,6 +645,13 @@ int delete_ref(const char *refname, const unsigned char *old_sha1,
return 0;
}
+int delete_ref(const char *refname, const unsigned char *old_sha1,
+ unsigned int flags)
+{
+ return refs_delete_ref(get_main_ref_store(), refname,
+ old_sha1, flags);
+}
+
int copy_reflog_msg(char *buf, const char *msg)
{
char *cp = buf;
@@ -801,11 +811,20 @@ int read_ref_at(const char *refname, unsigned int flags, unsigned long at_time,
return 1;
}
-struct ref_transaction *ref_transaction_begin(struct strbuf *err)
+struct ref_transaction *ref_store_transaction_begin(struct ref_store *refs,
+ struct strbuf *err)
{
+ struct ref_transaction *tr;
assert(err);
- return xcalloc(1, sizeof(struct ref_transaction));
+ tr = xcalloc(1, sizeof(struct ref_transaction));
+ tr->ref_store = refs;
+ return tr;
+}
+
+struct ref_transaction *ref_transaction_begin(struct strbuf *err)
+{
+ return ref_store_transaction_begin(get_main_ref_store(), err);
}
void ref_transaction_free(struct ref_transaction *transaction)
@@ -922,18 +941,20 @@ int update_ref_oid(const char *msg, const char *refname,
old_oid ? old_oid->hash : NULL, flags, onerr);
}
-int update_ref(const char *msg, const char *refname,
- const unsigned char *new_sha1, const unsigned char *old_sha1,
- unsigned int flags, enum action_on_err onerr)
+int refs_update_ref(struct ref_store *refs, const char *msg,
+ const char *refname, const unsigned char *new_sha1,
+ const unsigned char *old_sha1, unsigned int flags,
+ enum action_on_err onerr)
{
struct ref_transaction *t = NULL;
struct strbuf err = STRBUF_INIT;
int ret = 0;
if (ref_type(refname) == REF_TYPE_PSEUDOREF) {
+ assert(refs == get_main_ref_store());
ret = write_pseudoref(refname, new_sha1, old_sha1, &err);
} else {
- t = ref_transaction_begin(&err);
+ t = ref_store_transaction_begin(refs, &err);
if (!t ||
ref_transaction_update(t, refname, new_sha1, old_sha1,
flags, msg, &err) ||
@@ -964,6 +985,15 @@ int update_ref(const char *msg, const char *refname,
return 0;
}
+int update_ref(const char *msg, const char *refname,
+ const unsigned char *new_sha1,
+ const unsigned char *old_sha1,
+ unsigned int flags, enum action_on_err onerr)
+{
+ return refs_update_ref(get_main_ref_store(), msg, refname, new_sha1,
+ old_sha1, flags, onerr);
+}
+
char *shorten_unambiguous_ref(const char *refname, int strict)
{
int i;
@@ -1600,7 +1630,7 @@ int create_symref(const char *ref_target, const char *refs_heads_master,
int ref_transaction_commit(struct ref_transaction *transaction,
struct strbuf *err)
{
- struct ref_store *refs = get_main_ref_store();
+ struct ref_store *refs = transaction->ref_store;
return refs->be->transaction_commit(refs, transaction, err);
}
@@ -1719,7 +1749,7 @@ int reflog_expire(const char *refname, const unsigned char *sha1,
int initial_ref_transaction_commit(struct ref_transaction *transaction,
struct strbuf *err)
{
- struct ref_store *refs = get_main_ref_store();
+ struct ref_store *refs = transaction->ref_store;
return refs->be->initial_transaction_commit(refs, transaction, err);
}
diff --git a/refs.h b/refs.h
index 70d4eb87c..342cecd23 100644
--- a/refs.h
+++ b/refs.h
@@ -330,6 +330,9 @@ int reflog_exists(const char *refname);
* exists, regardless of its old value. It is an error for old_sha1 to
* be NULL_SHA1. flags is passed through to ref_transaction_delete().
*/
+int refs_delete_ref(struct ref_store *refs, const char *refname,
+ const unsigned char *old_sha1,
+ unsigned int flags);
int delete_ref(const char *refname, const unsigned char *old_sha1,
unsigned int flags);
@@ -414,6 +417,8 @@ enum action_on_err {
* Begin a reference transaction. The reference transaction must
* be freed by calling ref_transaction_free().
*/
+struct ref_transaction *ref_store_transaction_begin(struct ref_store *refs,
+ struct strbuf *err);
struct ref_transaction *ref_transaction_begin(struct strbuf *err);
/*
@@ -548,6 +553,9 @@ void ref_transaction_free(struct ref_transaction *transaction);
* ref_transaction_update(). Handle errors as requested by the `onerr`
* argument.
*/
+int refs_update_ref(struct ref_store *refs, const char *msg, const char *refname,
+ const unsigned char *new_sha1, const unsigned char *old_sha1,
+ unsigned int flags, enum action_on_err onerr);
int update_ref(const char *msg, const char *refname,
const unsigned char *new_sha1, const unsigned char *old_sha1,
unsigned int flags, enum action_on_err onerr);
diff --git a/refs/refs-internal.h b/refs/refs-internal.h
index 5f26208c2..690498698 100644
--- a/refs/refs-internal.h
+++ b/refs/refs-internal.h
@@ -200,6 +200,7 @@ enum ref_transaction_state {
* as atomically as possible. This structure is opaque to callers.
*/
struct ref_transaction {
+ struct ref_store *ref_store;
struct ref_update **updates;
size_t alloc;
size_t nr;
--
2.11.0.157.gd943d85
^ permalink raw reply related
* [PATCH v5 20/24] files-backend: avoid ref api targetting main ref store
From: Nguyễn Thái Ngọc Duy @ 2017-02-22 14:04 UTC (permalink / raw)
To: git
Cc: Junio C Hamano, Michael Haggerty, Johannes Schindelin,
Ramsay Jones, Stefan Beller, novalis,
Nguyễn Thái Ngọc Duy
In-Reply-To: <20170222140450.30886-1-pclouds@gmail.com>
A small step towards making files-backend works as a non-main ref store
using the newly added store-aware API.
For the record, `join` and `nm` on refs.o and files-backend.o tell me
that files-backend no longer uses functions that defaults to
get_main_ref_store().
I'm not yet comfortable at the idea of removing
files_assert_main_repository() (or converting REF_STORE_MAIN to
REF_STORE_WRITE). More staring and testing is required before that can
happen. Well, except peel_ref(). I'm pretty sure that function is safe.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
refs/files-backend.c | 85 ++++++++++++++++++++++++++++++----------------------
1 file changed, 49 insertions(+), 36 deletions(-)
diff --git a/refs/files-backend.c b/refs/files-backend.c
index dafddefd3..09c280fd3 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -1836,8 +1836,6 @@ static int files_peel_ref(struct ref_store *ref_store,
int flag;
unsigned char base[20];
- files_assert_main_repository(refs, "peel_ref");
-
if (current_ref_iter && current_ref_iter->refname == refname) {
struct object_id peeled;
@@ -1847,7 +1845,8 @@ static int files_peel_ref(struct ref_store *ref_store,
return 0;
}
- if (read_ref_full(refname, RESOLVE_REF_READING, base, &flag))
+ if (refs_read_ref_full(ref_store, refname,
+ RESOLVE_REF_READING, base, &flag))
return -1;
/*
@@ -2017,15 +2016,15 @@ static struct ref_iterator *files_ref_iterator_begin(
* on success. On error, write an error message to err, set errno, and
* return a negative value.
*/
-static int verify_lock(struct ref_lock *lock,
+static int verify_lock(struct ref_store *ref_store, struct ref_lock *lock,
const unsigned char *old_sha1, int mustexist,
struct strbuf *err)
{
assert(err);
- if (read_ref_full(lock->ref_name,
- mustexist ? RESOLVE_REF_READING : 0,
- lock->old_oid.hash, NULL)) {
+ if (refs_read_ref_full(ref_store, lock->ref_name,
+ mustexist ? RESOLVE_REF_READING : 0,
+ lock->old_oid.hash, NULL)) {
if (old_sha1) {
int save_errno = errno;
strbuf_addf(err, "can't verify ref '%s'", lock->ref_name);
@@ -2094,8 +2093,9 @@ static struct ref_lock *lock_ref_sha1_basic(struct files_ref_store *refs,
resolve_flags |= RESOLVE_REF_ALLOW_BAD_NAME;
files_refname_path(refs, &ref_file, refname);
- resolved = !!resolve_ref_unsafe(refname, resolve_flags,
- lock->old_oid.hash, type);
+ resolved = !!refs_resolve_ref_unsafe(&refs->base,
+ refname, resolve_flags,
+ lock->old_oid.hash, type);
if (!resolved && errno == EISDIR) {
/*
* we are trying to lock foo but we used to
@@ -2112,8 +2112,9 @@ static struct ref_lock *lock_ref_sha1_basic(struct files_ref_store *refs,
refname);
goto error_return;
}
- resolved = !!resolve_ref_unsafe(refname, resolve_flags,
- lock->old_oid.hash, type);
+ resolved = !!refs_resolve_ref_unsafe(&refs->base,
+ refname, resolve_flags,
+ lock->old_oid.hash, type);
}
if (!resolved) {
last_errno = errno;
@@ -2151,7 +2152,7 @@ static struct ref_lock *lock_ref_sha1_basic(struct files_ref_store *refs,
goto error_return;
}
- if (verify_lock(lock, old_sha1, mustexist, err)) {
+ if (verify_lock(&refs->base, lock, old_sha1, mustexist, err)) {
last_errno = errno;
goto error_return;
}
@@ -2406,7 +2407,7 @@ static void try_remove_empty_parents(struct files_ref_store *refs,
}
/* make sure nobody touched the ref, and unlink */
-static void prune_ref(struct ref_to_prune *r)
+static void prune_ref(struct files_ref_store *refs, struct ref_to_prune *r)
{
struct ref_transaction *transaction;
struct strbuf err = STRBUF_INIT;
@@ -2414,7 +2415,7 @@ static void prune_ref(struct ref_to_prune *r)
if (check_refname_format(r->name, 0))
return;
- transaction = ref_transaction_begin(&err);
+ transaction = ref_store_transaction_begin(&refs->base, &err);
if (!transaction ||
ref_transaction_delete(transaction, r->name, r->sha1,
REF_ISPRUNING | REF_NODEREF, NULL, &err) ||
@@ -2428,10 +2429,10 @@ static void prune_ref(struct ref_to_prune *r)
strbuf_release(&err);
}
-static void prune_refs(struct ref_to_prune *r)
+static void prune_refs(struct files_ref_store *refs, struct ref_to_prune *r)
{
while (r) {
- prune_ref(r);
+ prune_ref(refs, r);
r = r->next;
}
}
@@ -2455,7 +2456,7 @@ static int files_pack_refs(struct ref_store *ref_store, unsigned int flags)
if (commit_packed_refs(refs))
die_errno("unable to overwrite old ref-pack file");
- prune_refs(cbdata.ref_to_prune);
+ prune_refs(refs, cbdata.ref_to_prune);
return 0;
}
@@ -2547,7 +2548,7 @@ static int files_delete_refs(struct ref_store *ref_store,
for (i = 0; i < refnames->nr; i++) {
const char *refname = refnames->items[i].string;
- if (delete_ref(refname, NULL, flags))
+ if (refs_delete_ref(&refs->base, refname, NULL, flags))
result |= error(_("could not remove reference %s"), refname);
}
@@ -2665,8 +2666,9 @@ static int files_rename_ref(struct ref_store *ref_store,
if (log && S_ISLNK(loginfo.st_mode))
return error("reflog for %s is a symlink", oldrefname);
- if (!resolve_ref_unsafe(oldrefname, RESOLVE_REF_READING | RESOLVE_REF_NO_RECURSE,
- orig_sha1, &flag))
+ if (!refs_resolve_ref_unsafe(&refs->base, oldrefname,
+ RESOLVE_REF_READING | RESOLVE_REF_NO_RECURSE,
+ orig_sha1, &flag))
return error("refname %s not found", oldrefname);
if (flag & REF_ISSYMREF)
@@ -2684,7 +2686,7 @@ static int files_rename_ref(struct ref_store *ref_store,
return error("unable to move logfile logs/%s to logs/"TMP_RENAMED_LOG": %s",
oldrefname, strerror(errno));
- if (delete_ref(oldrefname, orig_sha1, REF_NODEREF)) {
+ if (refs_delete_ref(&refs->base, oldrefname, orig_sha1, REF_NODEREF)) {
error("unable to delete old %s", oldrefname);
goto rollback;
}
@@ -2696,9 +2698,10 @@ static int files_rename_ref(struct ref_store *ref_store,
* the safety anyway; we want to delete the reference whatever
* its current value.
*/
- if (!read_ref_full(newrefname, RESOLVE_REF_READING | RESOLVE_REF_NO_RECURSE,
- sha1, NULL) &&
- delete_ref(newrefname, NULL, REF_NODEREF)) {
+ if (!refs_read_ref_full(&refs->base, newrefname,
+ RESOLVE_REF_READING | RESOLVE_REF_NO_RECURSE,
+ sha1, NULL) &&
+ refs_delete_ref(&refs->base, newrefname, NULL, REF_NODEREF)) {
if (errno == EISDIR) {
struct strbuf path = STRBUF_INIT;
int result;
@@ -3054,8 +3057,9 @@ static int commit_ref_update(struct files_ref_store *refs,
int head_flag;
const char *head_ref;
- head_ref = resolve_ref_unsafe("HEAD", RESOLVE_REF_READING,
- head_sha1, &head_flag);
+ head_ref = refs_resolve_ref_unsafe(&refs->base, "HEAD",
+ RESOLVE_REF_READING,
+ head_sha1, &head_flag);
if (head_ref && (head_flag & REF_ISSYMREF) &&
!strcmp(head_ref, lock->ref_name)) {
struct strbuf log_err = STRBUF_INIT;
@@ -3099,7 +3103,9 @@ static void update_symref_reflog(struct files_ref_store *refs,
{
struct strbuf err = STRBUF_INIT;
unsigned char new_sha1[20];
- if (logmsg && !read_ref(target, new_sha1) &&
+ if (logmsg &&
+ !refs_read_ref_full(&refs->base, target,
+ RESOLVE_REF_READING, new_sha1, NULL) &&
files_log_ref_write(refs, refname, lock->old_oid.hash,
new_sha1, logmsg, 0, &err)) {
error("%s", err.buf);
@@ -3403,6 +3409,7 @@ static int files_for_each_reflog_ent(struct ref_store *ref_store,
struct files_reflog_iterator {
struct ref_iterator base;
+ struct ref_store *ref_store;
struct dir_iterator *dir_iterator;
struct object_id oid;
};
@@ -3424,8 +3431,9 @@ static int files_reflog_iterator_advance(struct ref_iterator *ref_iterator)
if (ends_with(diter->basename, ".lock"))
continue;
- if (read_ref_full(diter->relative_path, 0,
- iter->oid.hash, &flags)) {
+ if (refs_read_ref_full(iter->ref_store,
+ diter->relative_path, 0,
+ iter->oid.hash, &flags)) {
error("bad ref for %s", diter->path.buf);
continue;
}
@@ -3479,6 +3487,7 @@ static struct ref_iterator *files_reflog_iterator_begin(struct ref_store *ref_st
base_ref_iterator_init(ref_iterator, &files_reflog_iterator_vtable);
files_reflog_path(refs, &sb, NULL);
iter->dir_iterator = dir_iterator_begin(sb.buf);
+ iter->ref_store = ref_store;
strbuf_release(&sb);
return ref_iterator;
}
@@ -3718,8 +3727,9 @@ static int lock_ref_for_update(struct files_ref_store *refs,
* the transaction, so we have to read it here
* to record and possibly check old_sha1:
*/
- if (read_ref_full(referent.buf, 0,
- lock->old_oid.hash, NULL)) {
+ if (refs_read_ref_full(&refs->base,
+ referent.buf, 0,
+ lock->old_oid.hash, NULL)) {
if (update->flags & REF_HAVE_OLD) {
strbuf_addf(err, "cannot lock ref '%s': "
"error reading reference",
@@ -3873,8 +3883,10 @@ static int files_transaction_commit(struct ref_store *ref_store,
* head_ref within the transaction, then split_head_update()
* arranges for the reflog of HEAD to be updated, too.
*/
- head_ref = resolve_refdup("HEAD", RESOLVE_REF_NO_RECURSE,
- head_oid.hash, &head_type);
+ head_ref = (char *)refs_resolve_ref_unsafe(ref_store, "HEAD",
+ RESOLVE_REF_NO_RECURSE,
+ head_oid.hash, &head_type);
+ head_ref = xstrdup_or_null(head_ref);
if (head_ref && !(head_type & REF_ISSYMREF)) {
free(head_ref);
@@ -4047,7 +4059,8 @@ static int files_initial_transaction_commit(struct ref_store *ref_store,
* so here we really only check that none of the references
* that we are creating already exists.
*/
- if (for_each_rawref(ref_present, &affected_refnames))
+ if (refs_for_each_rawref(&refs->base, ref_present,
+ &affected_refnames))
die("BUG: initial ref transaction called with existing refs");
for (i = 0; i < transaction->nr; i++) {
@@ -4166,7 +4179,7 @@ static int files_reflog_expire(struct ref_store *ref_store,
strbuf_release(&err);
return -1;
}
- if (!reflog_exists(refname)) {
+ if (!refs_reflog_exists(ref_store, refname)) {
unlock_ref(lock);
return 0;
}
@@ -4197,7 +4210,7 @@ static int files_reflog_expire(struct ref_store *ref_store,
}
(*prepare_fn)(refname, sha1, cb.policy_cb);
- for_each_reflog_ent(refname, expire_reflog_ent, &cb);
+ refs_for_each_reflog_ent(ref_store, refname, expire_reflog_ent, &cb);
(*cleanup_fn)(cb.policy_cb);
if (!(flags & EXPIRE_REFLOGS_DRY_RUN)) {
--
2.11.0.157.gd943d85
^ permalink raw reply related
* [PATCH v5 21/24] refs: delete pack_refs() in favor of refs_pack_refs()
From: Nguyễn Thái Ngọc Duy @ 2017-02-22 14:04 UTC (permalink / raw)
To: git
Cc: Junio C Hamano, Michael Haggerty, Johannes Schindelin,
Ramsay Jones, Stefan Beller, novalis,
Nguyễn Thái Ngọc Duy
In-Reply-To: <20170222140450.30886-1-pclouds@gmail.com>
It only has one caller, not worth keeping just for convenience.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
builtin/pack-refs.c | 2 +-
refs.c | 5 -----
refs.h | 1 -
3 files changed, 1 insertion(+), 7 deletions(-)
diff --git a/builtin/pack-refs.c b/builtin/pack-refs.c
index 39f9a55d1..b106a392a 100644
--- a/builtin/pack-refs.c
+++ b/builtin/pack-refs.c
@@ -17,5 +17,5 @@ int cmd_pack_refs(int argc, const char **argv, const char *prefix)
};
if (parse_options(argc, argv, prefix, opts, pack_refs_usage, 0))
usage_with_options(pack_refs_usage, opts);
- return pack_refs(flags);
+ return refs_pack_refs(get_main_ref_store(), flags);
}
diff --git a/refs.c b/refs.c
index 851b5e125..6efe5957d 100644
--- a/refs.c
+++ b/refs.c
@@ -1594,11 +1594,6 @@ int refs_pack_refs(struct ref_store *refs, unsigned int flags)
return refs->be->pack_refs(refs, flags);
}
-int pack_refs(unsigned int flags)
-{
- return refs_pack_refs(get_main_ref_store(), flags);
-}
-
int refs_peel_ref(struct ref_store *refs, const char *refname,
unsigned char *sha1)
{
diff --git a/refs.h b/refs.h
index 342cecd23..1af41eaef 100644
--- a/refs.h
+++ b/refs.h
@@ -294,7 +294,6 @@ void warn_dangling_symrefs(FILE *fp, const char *msg_fmt,
* flags: Combination of the above PACK_REFS_* flags.
*/
int refs_pack_refs(struct ref_store *refs, unsigned int flags);
-int pack_refs(unsigned int flags);
/*
* Flags controlling ref_transaction_update(), ref_transaction_create(), etc.
--
2.11.0.157.gd943d85
^ permalink raw reply related
* [PATCH v5 22/24] t/helper: add test-ref-store to test ref-store functions
From: Nguyễn Thái Ngọc Duy @ 2017-02-22 14:04 UTC (permalink / raw)
To: git
Cc: Junio C Hamano, Michael Haggerty, Johannes Schindelin,
Ramsay Jones, Stefan Beller, novalis,
Nguyễn Thái Ngọc Duy
In-Reply-To: <20170222140450.30886-1-pclouds@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
Makefile | 1 +
t/helper/.gitignore | 1 +
t/helper/test-ref-store.c (new) | 274 ++++++++++++++++++++++++++++++++++++++++
3 files changed, 276 insertions(+)
create mode 100644 t/helper/test-ref-store.c
diff --git a/Makefile b/Makefile
index 8e4081e06..d62d64623 100644
--- a/Makefile
+++ b/Makefile
@@ -624,6 +624,7 @@ TEST_PROGRAMS_NEED_X += test-parse-options
TEST_PROGRAMS_NEED_X += test-path-utils
TEST_PROGRAMS_NEED_X += test-prio-queue
TEST_PROGRAMS_NEED_X += test-read-cache
+TEST_PROGRAMS_NEED_X += test-ref-store
TEST_PROGRAMS_NEED_X += test-regex
TEST_PROGRAMS_NEED_X += test-revision-walking
TEST_PROGRAMS_NEED_X += test-run-command
diff --git a/t/helper/.gitignore b/t/helper/.gitignore
index d6e8b3679..5f68aa8f8 100644
--- a/t/helper/.gitignore
+++ b/t/helper/.gitignore
@@ -19,6 +19,7 @@
/test-path-utils
/test-prio-queue
/test-read-cache
+/test-ref-store
/test-regex
/test-revision-walking
/test-run-command
diff --git a/t/helper/test-ref-store.c b/t/helper/test-ref-store.c
new file mode 100644
index 000000000..c4c670acd
--- /dev/null
+++ b/t/helper/test-ref-store.c
@@ -0,0 +1,274 @@
+#include "cache.h"
+#include "refs.h"
+
+static const char *notnull(const char *arg, const char *name)
+{
+ if (!arg)
+ die("%s required", name);
+ return arg;
+}
+
+static unsigned int arg_flags(const char *arg, const char *name)
+{
+ return atoi(notnull(arg, name));
+}
+
+static const char **get_store(const char **argv, struct ref_store **refs)
+{
+ const char *gitdir;
+
+ if (!argv[0]) {
+ die("ref store required");
+ } else if (!strcmp(argv[0], "main")) {
+ *refs = get_main_ref_store();
+ } else if (skip_prefix(argv[0], "submodule:", &gitdir)) {
+ struct strbuf sb = STRBUF_INIT;
+ int ret;
+
+ ret = strbuf_git_path_submodule(&sb, gitdir, "objects/");
+ if (ret)
+ die("strbuf_git_path_submodule failed: %d", ret);
+ add_to_alternates_memory(sb.buf);
+ strbuf_release(&sb);
+
+ *refs = get_submodule_ref_store(gitdir);
+ } else
+ die("unknown backend %s", argv[0]);
+
+ if (!*refs)
+ die("no ref store");
+
+ /* consume store-specific optional arguments if needed */
+
+ return argv + 1;
+}
+
+
+static int cmd_pack_refs(struct ref_store *refs, const char **argv)
+{
+ unsigned int flags = arg_flags(*argv++, "flags");
+
+ return refs_pack_refs(refs, flags);
+}
+
+static int cmd_peel_ref(struct ref_store *refs, const char **argv)
+{
+ const char *refname = notnull(*argv++, "refname");
+ unsigned char sha1[20];
+ int ret;
+
+ ret = refs_peel_ref(refs, refname, sha1);
+ if (!ret)
+ puts(sha1_to_hex(sha1));
+ return ret;
+}
+
+static int cmd_create_symref(struct ref_store *refs, const char **argv)
+{
+ const char *refname = notnull(*argv++, "refname");
+ const char *target = notnull(*argv++, "target");
+ const char *logmsg = *argv++;
+
+ return refs_create_symref(refs, refname, target, logmsg);
+}
+
+static int cmd_delete_refs(struct ref_store *refs, const char **argv)
+{
+ unsigned int flags = arg_flags(*argv++, "flags");
+ struct string_list refnames = STRING_LIST_INIT_NODUP;
+
+ while (*argv)
+ string_list_append(&refnames, *argv++);
+
+ return refs_delete_refs(refs, &refnames, flags);
+}
+
+static int cmd_rename_ref(struct ref_store *refs, const char **argv)
+{
+ const char *oldref = notnull(*argv++, "oldref");
+ const char *newref = notnull(*argv++, "newref");
+ const char *logmsg = *argv++;
+
+ return refs_rename_ref(refs, oldref, newref, logmsg);
+}
+
+static int each_ref(const char *refname, const struct object_id *oid,
+ int flags, void *cb_data)
+{
+ printf("%s %s 0x%x\n", oid_to_hex(oid), refname, flags);
+ return 0;
+}
+
+static int cmd_for_each_ref(struct ref_store *refs, const char **argv)
+{
+ const char *prefix = notnull(*argv++, "prefix");
+
+ return refs_for_each_ref_in(refs, prefix, each_ref, NULL);
+}
+
+static int cmd_resolve_ref(struct ref_store *refs, const char **argv)
+{
+ unsigned char sha1[20];
+ const char *refname = notnull(*argv++, "refname");
+ int resolve_flags = arg_flags(*argv++, "resolve-flags");
+ int flags;
+ const char *ref;
+
+ ref = refs_resolve_ref_unsafe(refs, refname, resolve_flags,
+ sha1, &flags);
+ printf("%s %s 0x%x\n", sha1_to_hex(sha1), ref, flags);
+ return ref ? 0 : 1;
+}
+
+static int cmd_verify_ref(struct ref_store *refs, const char **argv)
+{
+ const char *refname = notnull(*argv++, "refname");
+ struct strbuf err = STRBUF_INIT;
+ int ret;
+
+ ret = refs_verify_refname_available(refs, refname, NULL, NULL, &err);
+ if (err.len)
+ puts(err.buf);
+ return ret;
+}
+
+static int cmd_for_each_reflog(struct ref_store *refs, const char **argv)
+{
+ return refs_for_each_reflog(refs, each_ref, NULL);
+}
+
+static int each_reflog(unsigned char *old_sha1, unsigned char *new_sha1,
+ const char *committer, unsigned long timestamp,
+ int tz, const char *msg, void *cb_data)
+{
+ printf("%s %s %s %lu %d %s\n",
+ sha1_to_hex(old_sha1), sha1_to_hex(new_sha1),
+ committer, timestamp, tz, msg);
+ return 0;
+}
+
+static int cmd_for_each_reflog_ent(struct ref_store *refs, const char **argv)
+{
+ const char *refname = notnull(*argv++, "refname");
+
+ return refs_for_each_reflog_ent(refs, refname, each_reflog, refs);
+}
+
+static int cmd_for_each_reflog_ent_reverse(struct ref_store *refs, const char **argv)
+{
+ const char *refname = notnull(*argv++, "refname");
+
+ return refs_for_each_reflog_ent_reverse(refs, refname, each_reflog, refs);
+}
+
+static int cmd_reflog_exists(struct ref_store *refs, const char **argv)
+{
+ const char *refname = notnull(*argv++, "refname");
+
+ return !refs_reflog_exists(refs, refname);
+}
+
+static int cmd_create_reflog(struct ref_store *refs, const char **argv)
+{
+ const char *refname = notnull(*argv++, "refname");
+ int force_create = arg_flags(*argv++, "force-create");
+ struct strbuf err = STRBUF_INIT;
+ int ret;
+
+ ret = refs_create_reflog(refs, refname, force_create, &err);
+ if (err.len)
+ puts(err.buf);
+ return ret;
+}
+
+static int cmd_delete_reflog(struct ref_store *refs, const char **argv)
+{
+ const char *refname = notnull(*argv++, "refname");
+
+ return refs_delete_reflog(refs, refname);
+}
+
+static int cmd_reflog_expire(struct ref_store *refs, const char **argv)
+{
+ die("not supported yet");
+}
+
+static int cmd_delete_ref(struct ref_store *refs, const char **argv)
+{
+ const char *refname = notnull(*argv++, "refname");
+ const char *sha1_buf = notnull(*argv++, "old-sha1");
+ unsigned int flags = arg_flags(*argv++, "flags");
+ unsigned char old_sha1[20];
+
+ if (get_sha1_hex(sha1_buf, old_sha1))
+ die("not sha-1");
+
+ return refs_delete_ref(refs, refname, old_sha1, flags);
+}
+
+static int cmd_update_ref(struct ref_store *refs, const char **argv)
+{
+ const char *msg = notnull(*argv++, "msg");
+ const char *refname = notnull(*argv++, "refname");
+ const char *new_sha1_buf = notnull(*argv++, "old-sha1");
+ const char *old_sha1_buf = notnull(*argv++, "old-sha1");
+ unsigned int flags = arg_flags(*argv++, "flags");
+ unsigned char old_sha1[20];
+ unsigned char new_sha1[20];
+
+ if (get_sha1_hex(old_sha1_buf, old_sha1) ||
+ get_sha1_hex(new_sha1_buf, new_sha1))
+ die("not sha-1");
+
+ return refs_update_ref(refs, msg, refname,
+ new_sha1, old_sha1,
+ flags, UPDATE_REFS_DIE_ON_ERR);
+}
+
+struct command {
+ const char *name;
+ int (*func)(struct ref_store *refs, const char **argv);
+};
+
+static struct command commands[] = {
+ { "pack-refs", cmd_pack_refs },
+ { "peel-ref", cmd_peel_ref },
+ { "create-symref", cmd_create_symref },
+ { "delete-refs", cmd_delete_refs },
+ { "rename-ref", cmd_rename_ref },
+ { "for-each-ref", cmd_for_each_ref },
+ { "resolve-ref", cmd_resolve_ref },
+ { "verify-ref", cmd_verify_ref },
+ { "for-each-reflog", cmd_for_each_reflog },
+ { "for-each-reflog-ent", cmd_for_each_reflog_ent },
+ { "for-each-reflog-ent-reverse", cmd_for_each_reflog_ent_reverse },
+ { "reflog-exists", cmd_reflog_exists },
+ { "create-reflog", cmd_create_reflog },
+ { "delete-reflog", cmd_delete_reflog },
+ { "reflog-expire", cmd_reflog_expire },
+ /*
+ * backend transaction functions can't be tested separately
+ */
+ { "delete-ref", cmd_delete_ref },
+ { "update-ref", cmd_update_ref },
+ { NULL, NULL }
+};
+
+int cmd_main(int argc, const char **argv)
+{
+ struct ref_store *refs;
+ const char *func;
+ struct command *cmd;
+
+ argv = get_store(argv + 1, &refs);
+
+ func = *argv++;
+ if (!func)
+ die("ref function required");
+ for (cmd = commands; cmd->name; cmd++) {
+ if (!strcmp(func, cmd->name))
+ return cmd->func(refs, argv);
+ }
+ die("unknown function %s", func);
+ return 0;
+}
--
2.11.0.157.gd943d85
^ permalink raw reply related
* [PATCH v5 23/24] t1405: some basic tests on main ref store
From: Nguyễn Thái Ngọc Duy @ 2017-02-22 14:04 UTC (permalink / raw)
To: git
Cc: Junio C Hamano, Michael Haggerty, Johannes Schindelin,
Ramsay Jones, Stefan Beller, novalis,
Nguyễn Thái Ngọc Duy
In-Reply-To: <20170222140450.30886-1-pclouds@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
t/t1405-main-ref-store.sh (new +x) | 123 +++++++++++++++++++++++++++++++++++++
1 file changed, 123 insertions(+)
create mode 100755 t/t1405-main-ref-store.sh
diff --git a/t/t1405-main-ref-store.sh b/t/t1405-main-ref-store.sh
new file mode 100755
index 000000000..0999829f1
--- /dev/null
+++ b/t/t1405-main-ref-store.sh
@@ -0,0 +1,123 @@
+#!/bin/sh
+
+test_description='test main ref store api'
+
+. ./test-lib.sh
+
+RUN="test-ref-store main"
+
+test_expect_success 'pack_refs(PACK_REFS_ALL | PACK_REFS_PRUNE)' '
+ test_commit one &&
+ N=`find .git/refs -type f | wc -l` &&
+ test "$N" != 0 &&
+ $RUN pack-refs 3 &&
+ N=`find .git/refs -type f | wc -l`
+'
+
+test_expect_success 'peel_ref(new-tag)' '
+ git rev-parse HEAD >expected &&
+ git tag -a -m new-tag new-tag HEAD &&
+ $RUN peel-ref refs/tags/new-tag >actual &&
+ test_cmp expected actual
+'
+
+test_expect_success 'create_symref(FOO, refs/heads/master)' '
+ $RUN create-symref FOO refs/heads/master nothing &&
+ echo refs/heads/master >expected &&
+ git symbolic-ref FOO >actual &&
+ test_cmp expected actual
+'
+
+test_expect_success 'delete_refs(FOO, refs/tags/new-tag)' '
+ git rev-parse FOO -- &&
+ git rev-parse refs/tags/new-tag -- &&
+ $RUN delete-refs 0 FOO refs/tags/new-tag &&
+ test_must_fail git rev-parse FOO -- &&
+ test_must_fail git rev-parse refs/tags/new-tag --
+'
+
+test_expect_success 'rename_refs(master, new-master)' '
+ git rev-parse master >expected &&
+ $RUN rename-ref refs/heads/master refs/heads/new-master &&
+ git rev-parse new-master >actual &&
+ test_cmp expected actual &&
+ test_commit recreate-master
+'
+
+test_expect_success 'for_each_ref(refs/heads/)' '
+ $RUN for-each-ref refs/heads/ | cut -c 42- >actual &&
+ cat >expected <<-\EOF &&
+ master 0x0
+ new-master 0x0
+ EOF
+ test_cmp expected actual
+'
+
+test_expect_success 'resolve_ref(new-master)' '
+ SHA1=`git rev-parse new-master` &&
+ echo "$SHA1 refs/heads/new-master 0x0" >expected &&
+ $RUN resolve-ref refs/heads/new-master 0 >actual &&
+ test_cmp expected actual
+'
+
+test_expect_success 'verify_ref(new-master)' '
+ $RUN verify-ref refs/heads/new-master
+'
+
+test_expect_success 'for_each_reflog()' '
+ $RUN for-each-reflog | cut -c 42- >actual &&
+ cat >expected <<-\EOF &&
+ refs/heads/master 0x0
+ refs/heads/new-master 0x0
+ HEAD 0x1
+ EOF
+ test_cmp expected actual
+'
+
+test_expect_success 'for_each_reflog_ent()' '
+ $RUN for-each-reflog-ent HEAD >actual &&
+ head -n1 actual | grep one &&
+ tail -n2 actual | head -n1 | grep recreate-master
+'
+
+test_expect_success 'for_each_reflog_ent_reverse()' '
+ $RUN for-each-reflog-ent-reverse HEAD >actual &&
+ head -n1 actual | grep recreate-master &&
+ tail -n2 actual | head -n1 | grep one
+'
+
+test_expect_success 'reflog_exists(HEAD)' '
+ $RUN reflog-exists HEAD
+'
+
+test_expect_success 'delete_reflog(HEAD)' '
+ $RUN delete-reflog HEAD &&
+ ! test -f .git/logs/HEAD
+'
+
+test_expect_success 'create-reflog(HEAD)' '
+ $RUN create-reflog HEAD 1 &&
+ test -f .git/logs/HEAD
+'
+
+test_expect_success 'delete_ref(refs/heads/foo)' '
+ git checkout -b foo &&
+ FOO_SHA1=`git rev-parse foo` &&
+ git checkout --detach &&
+ test_commit bar-commit &&
+ git checkout -b bar &&
+ BAR_SHA1=`git rev-parse bar` &&
+ $RUN update-ref updating refs/heads/foo $BAR_SHA1 $FOO_SHA1 0 &&
+ echo $BAR_SHA1 >expected &&
+ git rev-parse refs/heads/foo >actual &&
+ test_cmp expected actual
+'
+
+test_expect_success 'delete_ref(refs/heads/foo)' '
+ SHA1=`git rev-parse foo` &&
+ git checkout --detach &&
+ $RUN delete-ref refs/heads/foo $SHA1 0 &&
+ test_must_fail git rev-parse refs/heads/foo --
+'
+
+test_done
--
2.11.0.157.gd943d85
^ permalink raw reply related
* [PATCH v5 24/24] t1406: new tests for submodule ref store
From: Nguyễn Thái Ngọc Duy @ 2017-02-22 14:04 UTC (permalink / raw)
To: git
Cc: Junio C Hamano, Michael Haggerty, Johannes Schindelin,
Ramsay Jones, Stefan Beller, novalis,
Nguyễn Thái Ngọc Duy
In-Reply-To: <20170222140450.30886-1-pclouds@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
t/t1406-submodule-ref-store.sh (new +x) | 95 +++++++++++++++++++++++++++++++++
1 file changed, 95 insertions(+)
create mode 100755 t/t1406-submodule-ref-store.sh
diff --git a/t/t1406-submodule-ref-store.sh b/t/t1406-submodule-ref-store.sh
new file mode 100755
index 000000000..3b30ba62f
--- /dev/null
+++ b/t/t1406-submodule-ref-store.sh
@@ -0,0 +1,95 @@
+#!/bin/sh
+
+test_description='test submodule ref store api'
+
+. ./test-lib.sh
+
+RUN="test-ref-store submodule:sub"
+
+test_expect_success 'setup' '
+ git init sub &&
+ (
+ cd sub &&
+ test_commit first &&
+ git checkout -b new-master
+ )
+'
+
+test_expect_success 'pack_refs() not allowed' '
+ test_must_fail $RUN pack-refs 3
+'
+
+test_expect_success 'peel_ref(new-tag)' '
+ git -C sub rev-parse HEAD >expected &&
+ git -C sub tag -a -m new-tag new-tag HEAD &&
+ $RUN peel-ref refs/tags/new-tag >actual &&
+ test_cmp expected actual
+'
+
+test_expect_success 'create_symref() not allowed' '
+ test_must_fail $RUN create-symref FOO refs/heads/master nothing
+'
+
+test_expect_success 'delete_refs() not allowed' '
+ test_must_fail $RUN delete-refs 0 FOO refs/tags/new-tag
+'
+
+test_expect_success 'rename_refs() not allowed' '
+ test_must_fail $RUN rename-ref refs/heads/master refs/heads/new-master
+'
+
+test_expect_success 'for_each_ref(refs/heads/)' '
+ $RUN for-each-ref refs/heads/ | cut -c 42- >actual &&
+ cat >expected <<-\EOF &&
+ master 0x0
+ new-master 0x0
+ EOF
+ test_cmp expected actual
+'
+
+test_expect_success 'resolve_ref(master)' '
+ SHA1=`git -C sub rev-parse master` &&
+ echo "$SHA1 refs/heads/master 0x0" >expected &&
+ $RUN resolve-ref refs/heads/master 0 >actual &&
+ test_cmp expected actual
+'
+
+test_expect_success 'verify_ref(new-master)' '
+ $RUN verify-ref refs/heads/new-master
+'
+
+test_expect_success 'for_each_reflog()' '
+ $RUN for-each-reflog | cut -c 42- >actual &&
+ cat >expected <<-\EOF &&
+ refs/heads/master 0x0
+ refs/heads/new-master 0x0
+ HEAD 0x1
+ EOF
+ test_cmp expected actual
+'
+
+test_expect_success 'for_each_reflog_ent()' '
+ $RUN for-each-reflog-ent HEAD >actual && cat actual &&
+ head -n1 actual | grep first &&
+ tail -n2 actual | head -n1 | grep master.to.new
+'
+
+test_expect_success 'for_each_reflog_ent_reverse()' '
+ $RUN for-each-reflog-ent-reverse HEAD >actual &&
+ head -n1 actual | grep master.to.new &&
+ tail -n2 actual | head -n1 | grep first
+'
+
+test_expect_success 'reflog_exists(HEAD)' '
+ $RUN reflog-exists HEAD
+'
+
+test_expect_success 'delete_reflog() not allowed' '
+ test_must_fail $RUN delete-reflog HEAD
+'
+
+test_expect_success 'create-reflog() not allowed' '
+ test_must_fail $RUN create-reflog HEAD 1
+'
+
+test_done
--
2.11.0.157.gd943d85
^ permalink raw reply related
* Re: url.<base>.insteadOf vs. submodules
From: Jon Loeliger @ 2017-02-22 14:00 UTC (permalink / raw)
To: Junio C Hamano; +Cc: Stefan Beller, Jeff King, Toolforger, git@vger.kernel.org
In-Reply-To: <xmqqbmtvdj7p.fsf@gitster.mtv.corp.google.com>
So, like, Junio C Hamano said:
> Stefan Beller <sbeller@google.com> writes:
>
> > Do we want to invent a special value for url.*.insteadOf to mean
> > "look up in superproject, so I don't have to keep
> > a copy that may get stale" ?
>
> My gut feeling is that we should do the selective/filtered include
> Peff mentioned when a repository is known to be used as a submodule
> of somebody else.
Does the management of these submodue-related config values
become easier if, instead of placing them in .config, we
place them in a git/.context file?
jdl
^ permalink raw reply
* Re: [PATCH] fetch: print an error when declining to request an unadvertised object
From: Matt McCutchen @ 2017-02-22 16:17 UTC (permalink / raw)
To: Junio C Hamano; +Cc: git
In-Reply-To: <xmqqvas4gie9.fsf@gitster.mtv.corp.google.com>
On Mon, 2017-02-20 at 22:36 -0800, Junio C Hamano wrote:
> Hmph, I would have expected this to be done as a three-patch series,
>
> * move the loop at the end of cmd_fetch_pack() to a separate helper
> function report_unmatched_refs() and call it;
>
> * add a call to report_unmatched_refs() to the transport layer;
>
> * enhance report_unmatched_refs() by introducing match_status
> field and adding new code to filter_refs() to diagnose other
> kinds of errors.
Sure.
> The result looks reasonable from a cursory read, though.
>
> Thanks for following it up to the completion.
This remark led me to believe you were satisfied with the single patch,
but the last "What's cooking in git.git" mail says "Expecting a split
series?".
Anyway, I made a split series and will send it in a moment. I don't
know if all the commit messages include exactly the information you
want; hopefully you're happy to edit them as desired. Compared to the
previous patch, there is one fix in the net result: fixing t5500-fetch-
pack.sh to deal with the internationalized "no such remote ref"
message.
Matt
^ permalink raw reply
* [PATCH 2/3] fetch_refs_via_pack: call report_unmatched_refs
From: Matt McCutchen @ 2017-02-22 16:02 UTC (permalink / raw)
To: git
In-Reply-To: <xmqqvas4gie9.fsf@gitster.mtv.corp.google.com>
"git fetch" currently doesn't bother to check that it got all refs it
sought, because the common case of requesting a nonexistent ref triggers
a die() in get_fetch_map. However, there's at least one case that
slipped through: "git fetch REMOTE SHA1" if the server doesn't allow
requests for unadvertised objects. Make fetch_refs_via_pack (which is
on the "git fetch" code path) call report_unmatched_refs so that we at
least get an error message in that case.
---
t/t5516-fetch-push.sh | 3 ++-
transport.c | 14 +++++++++-----
2 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/t/t5516-fetch-push.sh b/t/t5516-fetch-push.sh
index 26b2caf..0d13a45 100755
--- a/t/t5516-fetch-push.sh
+++ b/t/t5516-fetch-push.sh
@@ -1098,7 +1098,8 @@ test_expect_success 'fetch exact SHA1' '
test_must_fail git cat-file -t $the_commit &&
# fetching the hidden object should fail by default
- test_must_fail git fetch -v ../testrepo $the_commit:refs/heads/copy &&
+ test_must_fail git fetch -v ../testrepo $the_commit:refs/heads/copy 2>err &&
+ test_i18ngrep "no such remote ref" err &&
test_must_fail git rev-parse --verify refs/heads/copy &&
# the server side can allow it to succeed
diff --git a/transport.c b/transport.c
index 04e5d66..c377907 100644
--- a/transport.c
+++ b/transport.c
@@ -204,6 +204,7 @@ static struct ref *get_refs_via_connect(struct transport *transport, int for_pus
static int fetch_refs_via_pack(struct transport *transport,
int nr_heads, struct ref **to_fetch)
{
+ int ret = 0;
struct git_transport_data *data = transport->data;
struct ref *refs;
char *dest = xstrdup(transport->url);
@@ -241,19 +242,22 @@ static int fetch_refs_via_pack(struct transport *transport,
&transport->pack_lockfile);
close(data->fd[0]);
close(data->fd[1]);
- if (finish_connect(data->conn)) {
- free_refs(refs);
- refs = NULL;
- }
+ if (finish_connect(data->conn))
+ ret = -1;
data->conn = NULL;
data->got_remote_heads = 0;
data->options.self_contained_and_connected =
args.self_contained_and_connected;
+ if (refs == NULL)
+ ret = -1;
+ if (report_unmatched_refs(to_fetch, nr_heads))
+ ret = -1;
+
free_refs(refs_tmp);
free_refs(refs);
free(dest);
- return (refs ? 0 : -1);
+ return ret;
}
static int push_had_errors(struct ref *ref)
--
2.9.3
^ permalink raw reply related
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