* [PATCH v5 22/27] sequencer: teach write_message() to append an optional LF
From: Johannes Schindelin @ 2016-10-21 12:26 UTC (permalink / raw)
To: git; +Cc: Junio C Hamano, Jakub Narębski, Johannes Sixt, Ramsay Jones
In-Reply-To: <cover.1477052405.git.johannes.schindelin@gmx.de>
This commit prepares for future callers that will have a pointer/length
to some text to be written that lacks an LF, yet an LF is desired.
Instead of requiring the caller to append an LF to the buffer (and
potentially allocate memory to do so), the write_message() function
learns to append an LF at the end of the file.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
sequencer.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/sequencer.c b/sequencer.c
index 300952f..000ce3e 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -234,7 +234,8 @@ static void print_advice(int show_hint, struct replay_opts *opts)
}
}
-static int write_message(const void *buf, size_t len, const char *filename)
+static int write_message(const void *buf, size_t len, const char *filename,
+ int append_eol)
{
static struct lock_file msg_file;
@@ -245,6 +246,10 @@ static int write_message(const void *buf, size_t len, const char *filename)
rollback_lock_file(&msg_file);
return error_errno(_("Could not write to '%s'"), filename);
}
+ if (append_eol && write(msg_fd, "\n", 1) < 0) {
+ rollback_lock_file(&msg_file);
+ return error_errno(_("Could not write eol to '%s"), filename);
+ }
if (commit_lock_file(&msg_file) < 0) {
rollback_lock_file(&msg_file);
return error(_("Error wrapping up %s."), filename);
@@ -748,13 +753,13 @@ static int do_pick_commit(enum todo_command command, struct commit *commit,
if (res < 0)
return res;
res |= write_message(msgbuf.buf, msgbuf.len,
- git_path_merge_msg());
+ git_path_merge_msg(), 0);
} else {
struct commit_list *common = NULL;
struct commit_list *remotes = NULL;
res = write_message(msgbuf.buf, msgbuf.len,
- git_path_merge_msg());
+ git_path_merge_msg(), 0);
commit_list_insert(base, &common);
commit_list_insert(next, &remotes);
--
2.10.1.583.g721a9e0
^ permalink raw reply related
* [PATCH v5 23/27] sequencer: remove overzealous assumption in rebase -i mode
From: Johannes Schindelin @ 2016-10-21 12:26 UTC (permalink / raw)
To: git; +Cc: Junio C Hamano, Jakub Narębski, Johannes Sixt, Ramsay Jones
In-Reply-To: <cover.1477052405.git.johannes.schindelin@gmx.de>
The sequencer was introduced to make the cherry-pick and revert
functionality available as library function, with the original idea
being to extend the sequencer to also implement the rebase -i
functionality.
The test to ensure that all of the commands in the script are identical
to the overall operation does not mesh well with that.
Therefore let's disable the test in rebase -i mode.
While at it, error out early if the "instruction sheet" (i.e. the todo
script) could not be parsed.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
sequencer.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/sequencer.c b/sequencer.c
index 000ce3e..bd11db4 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -962,7 +962,10 @@ static int read_populate_todo(struct todo_list *todo_list,
close(fd);
res = parse_insn_buffer(todo_list->buf.buf, todo_list);
- if (!res) {
+ if (res)
+ return error(_("Unusable instruction sheet: %s"), todo_file);
+
+ if (!is_rebase_i(opts)) {
enum todo_command valid =
opts->action == REPLAY_PICK ? TODO_PICK : TODO_REVERT;
int i;
@@ -976,8 +979,6 @@ static int read_populate_todo(struct todo_list *todo_list,
return error(_("Cannot revert during a cherry-pick."));
}
- if (res)
- return error(_("Unusable instruction sheet: %s"), todo_file);
return 0;
}
--
2.10.1.583.g721a9e0
^ permalink raw reply related
* [PATCH v5 19/27] sequencer: stop releasing the strbuf in write_message()
From: Johannes Schindelin @ 2016-10-21 12:25 UTC (permalink / raw)
To: git; +Cc: Junio C Hamano, Jakub Narębski, Johannes Sixt, Ramsay Jones
In-Reply-To: <cover.1477052405.git.johannes.schindelin@gmx.de>
Nothing in the name "write_message()" suggests that the function
releases the strbuf passed to it. So let's release the strbuf in the
caller instead.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
sequencer.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sequencer.c b/sequencer.c
index d74fdce..745c86f 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -243,7 +243,6 @@ static int write_message(struct strbuf *msgbuf, const char *filename)
return error_errno(_("Could not lock '%s'"), filename);
if (write_in_full(msg_fd, msgbuf->buf, msgbuf->len) < 0)
return error_errno(_("Could not write to %s"), filename);
- strbuf_release(msgbuf);
if (commit_lock_file(&msg_file) < 0)
return error(_("Error wrapping up %s."), filename);
@@ -759,6 +758,7 @@ static int do_pick_commit(enum todo_command command, struct commit *commit,
free_commit_list(common);
free_commit_list(remotes);
}
+ strbuf_release(&msgbuf);
/*
* If the merge was clean or if it failed due to conflict, we write
--
2.10.1.583.g721a9e0
^ permalink raw reply related
* [PATCH v5 21/27] sequencer: refactor write_message() to take a pointer/length
From: Johannes Schindelin @ 2016-10-21 12:26 UTC (permalink / raw)
To: git; +Cc: Junio C Hamano, Jakub Narębski, Johannes Sixt, Ramsay Jones
In-Reply-To: <cover.1477052405.git.johannes.schindelin@gmx.de>
Previously, we required an strbuf. But that limits the use case too much.
In the upcoming patch series (for which the current patch series prepares
the sequencer), we will want to write content to a file for which we have
a pointer and a length, not an strbuf.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
sequencer.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/sequencer.c b/sequencer.c
index 9fced42..300952f 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -234,14 +234,14 @@ static void print_advice(int show_hint, struct replay_opts *opts)
}
}
-static int write_message(struct strbuf *msgbuf, const char *filename)
+static int write_message(const void *buf, size_t len, const char *filename)
{
static struct lock_file msg_file;
int msg_fd = hold_lock_file_for_update(&msg_file, filename, 0);
if (msg_fd < 0)
return error_errno(_("Could not lock '%s'"), filename);
- if (write_in_full(msg_fd, msgbuf->buf, msgbuf->len) < 0) {
+ if (write_in_full(msg_fd, buf, len) < 0) {
rollback_lock_file(&msg_file);
return error_errno(_("Could not write to '%s'"), filename);
}
@@ -747,12 +747,14 @@ static int do_pick_commit(enum todo_command command, struct commit *commit,
head, &msgbuf, opts);
if (res < 0)
return res;
- res |= write_message(&msgbuf, git_path_merge_msg());
+ res |= write_message(msgbuf.buf, msgbuf.len,
+ git_path_merge_msg());
} else {
struct commit_list *common = NULL;
struct commit_list *remotes = NULL;
- res = write_message(&msgbuf, git_path_merge_msg());
+ res = write_message(msgbuf.buf, msgbuf.len,
+ git_path_merge_msg());
commit_list_insert(base, &common);
commit_list_insert(next, &remotes);
--
2.10.1.583.g721a9e0
^ permalink raw reply related
* [PATCH v5 18/27] sequencer: left-trim lines read from the script
From: Johannes Schindelin @ 2016-10-21 12:25 UTC (permalink / raw)
To: git; +Cc: Junio C Hamano, Jakub Narębski, Johannes Sixt, Ramsay Jones
In-Reply-To: <cover.1477052405.git.johannes.schindelin@gmx.de>
Interactive rebase's scripts may be indented; we need to handle this
case, too, now that we prepare the sequencer to process interactive
rebases.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
sequencer.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/sequencer.c b/sequencer.c
index 8646ca5..d74fdce 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -874,6 +874,9 @@ static int parse_insn_line(struct todo_item *item, const char *bol, char *eol)
char *end_of_object_name;
int i, saved, status, padding;
+ /* left-trim */
+ bol += strspn(bol, " \t");
+
for (i = 0; i < ARRAY_SIZE(todo_command_strings); i++)
if (skip_prefix(bol, todo_command_strings[i], &bol)) {
item->command = i;
--
2.10.1.583.g721a9e0
^ permalink raw reply related
* [PATCH v5 17/27] sequencer: support cleaning up commit messages
From: Johannes Schindelin @ 2016-10-21 12:25 UTC (permalink / raw)
To: git; +Cc: Junio C Hamano, Jakub Narębski, Johannes Sixt, Ramsay Jones
In-Reply-To: <cover.1477052405.git.johannes.schindelin@gmx.de>
The run_git_commit() function already knows how to amend commits, and
with this new option, it can also clean up commit messages (i.e. strip
out commented lines). This is needed to implement rebase -i's 'fixup'
and 'squash' commands as sequencer commands.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
sequencer.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/sequencer.c b/sequencer.c
index 1ef50a0..8646ca5 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -484,7 +484,8 @@ static char **read_author_script(void)
* author metadata.
*/
static int run_git_commit(const char *defmsg, struct replay_opts *opts,
- int allow_empty, int edit, int amend)
+ int allow_empty, int edit, int amend,
+ int cleanup_commit_message)
{
char **env = NULL;
struct argv_array array;
@@ -521,9 +522,12 @@ static int run_git_commit(const char *defmsg, struct replay_opts *opts,
argv_array_push(&array, "-s");
if (defmsg)
argv_array_pushl(&array, "-F", defmsg, NULL);
+ if (cleanup_commit_message)
+ argv_array_push(&array, "--cleanup=strip");
if (edit)
argv_array_push(&array, "-e");
- else if (!opts->signoff && !opts->record_origin &&
+ else if (!cleanup_commit_message &&
+ !opts->signoff && !opts->record_origin &&
git_config_get_value("commit.cleanup", &value))
argv_array_push(&array, "--cleanup=verbatim");
@@ -788,7 +792,7 @@ static int do_pick_commit(enum todo_command command, struct commit *commit,
}
if (!opts->no_commit)
res = run_git_commit(opts->edit ? NULL : git_path_merge_msg(),
- opts, allow, opts->edit, 0);
+ opts, allow, opts->edit, 0, 0);
leave:
free_message(commit, &msg);
--
2.10.1.583.g721a9e0
^ permalink raw reply related
* [PATCH v5 16/27] sequencer: support amending commits
From: Johannes Schindelin @ 2016-10-21 12:25 UTC (permalink / raw)
To: git; +Cc: Junio C Hamano, Jakub Narębski, Johannes Sixt, Ramsay Jones
In-Reply-To: <cover.1477052405.git.johannes.schindelin@gmx.de>
This teaches the run_git_commit() function to take an argument that will
allow us to implement "todo" commands that need to amend the commit
messages ("fixup", "squash" and "reword").
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
sequencer.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/sequencer.c b/sequencer.c
index c0a0aa0..1ef50a0 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -484,7 +484,7 @@ static char **read_author_script(void)
* author metadata.
*/
static int run_git_commit(const char *defmsg, struct replay_opts *opts,
- int allow_empty, int edit)
+ int allow_empty, int edit, int amend)
{
char **env = NULL;
struct argv_array array;
@@ -513,6 +513,8 @@ static int run_git_commit(const char *defmsg, struct replay_opts *opts,
argv_array_push(&array, "commit");
argv_array_push(&array, "-n");
+ if (amend)
+ argv_array_push(&array, "--amend");
if (opts->gpg_sign)
argv_array_pushf(&array, "-S%s", opts->gpg_sign);
if (opts->signoff)
@@ -786,7 +788,7 @@ static int do_pick_commit(enum todo_command command, struct commit *commit,
}
if (!opts->no_commit)
res = run_git_commit(opts->edit ? NULL : git_path_merge_msg(),
- opts, allow, opts->edit);
+ opts, allow, opts->edit, 0);
leave:
free_message(commit, &msg);
--
2.10.1.583.g721a9e0
^ permalink raw reply related
* [PATCH v5 14/27] sequencer: introduce a helper to read files written by scripts
From: Johannes Schindelin @ 2016-10-21 12:25 UTC (permalink / raw)
To: git; +Cc: Junio C Hamano, Jakub Narębski, Johannes Sixt, Ramsay Jones
In-Reply-To: <cover.1477052405.git.johannes.schindelin@gmx.de>
As we are slowly teaching the sequencer to perform the hard work for
the interactive rebase, we need to read files that were written by
shell scripts.
These files typically contain a single line and are invariably ended
by a line feed (and possibly a carriage return before that). Let's use
a helper to read such files and to remove the line ending.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
sequencer.c | 34 ++++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/sequencer.c b/sequencer.c
index 6d5fe94..282c4d1 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -234,6 +234,40 @@ static int write_message(struct strbuf *msgbuf, const char *filename)
return 0;
}
+/*
+ * Reads a file that was presumably written by a shell script, i.e. with an
+ * end-of-line marker that needs to be stripped.
+ *
+ * Note that only the last end-of-line marker is stripped, consistent with the
+ * behavior of "$(cat path)" in a shell script.
+ *
+ * Returns 1 if the file was read, 0 if it could not be read or does not exist.
+ */
+static int read_oneliner(struct strbuf *buf,
+ const char *path, int skip_if_empty)
+{
+ int orig_len = buf->len;
+
+ if (!file_exists(path))
+ return 0;
+
+ if (strbuf_read_file(buf, path, 0) < 0) {
+ warning_errno(_("could not read '%s'"), path);
+ return 0;
+ }
+
+ if (buf->len > orig_len && buf->buf[buf->len - 1] == '\n') {
+ if (--buf->len > orig_len && buf->buf[buf->len - 1] == '\r')
+ --buf->len;
+ buf->buf[buf->len] = '\0';
+ }
+
+ if (skip_if_empty && buf->len == orig_len)
+ return 0;
+
+ return 1;
+}
+
static struct tree *empty_tree(void)
{
return lookup_tree(EMPTY_TREE_SHA1_BIN);
--
2.10.1.583.g721a9e0
^ permalink raw reply related
* [PATCH v5 15/27] sequencer: allow editing the commit message on a case-by-case basis
From: Johannes Schindelin @ 2016-10-21 12:25 UTC (permalink / raw)
To: git; +Cc: Junio C Hamano, Jakub Narębski, Johannes Sixt, Ramsay Jones
In-Reply-To: <cover.1477052405.git.johannes.schindelin@gmx.de>
In the upcoming commits, we will implement more and more of rebase -i's
functionality inside the sequencer. One particular feature of the
commands to come is that some of them allow editing the commit message
while others don't, i.e. we cannot define in the replay_opts whether the
commit message should be edited or not.
Let's add a new parameter to the run_git_commit() function. Previously,
it was the duty of the caller to ensure that the opts->edit setting
indicates whether to let the user edit the commit message or not,
indicating that it is an "all or nothing" setting, i.e. that the
sequencer wants to let the user edit *all* commit message, or none at
all. In the upcoming rebase -i mode, it will depend on the particular
command that is currently executed, though.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
sequencer.c | 48 ++++++++++++++++++++++++++++++++++++++++--------
1 file changed, 40 insertions(+), 8 deletions(-)
diff --git a/sequencer.c b/sequencer.c
index 282c4d1..c0a0aa0 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -15,6 +15,7 @@
#include "merge-recursive.h"
#include "refs.h"
#include "argv-array.h"
+#include "quote.h"
#define GIT_REFLOG_ACTION "GIT_REFLOG_ACTION"
@@ -33,6 +34,11 @@ static GIT_PATH_FUNC(git_path_head_file, "sequencer/head")
* being rebased.
*/
static GIT_PATH_FUNC(rebase_path_author_script, "rebase-merge/author-script")
+/*
+ * The following files are written by git-rebase just after parsing the
+ * command-line (and are only consumed, not modified, by the sequencer).
+ */
+static GIT_PATH_FUNC(rebase_path_gpg_sign_opt, "rebase-merge/gpg_sign_opt")
/* We will introduce the 'interactive rebase' mode later */
static inline int is_rebase_i(const struct replay_opts *opts)
@@ -132,6 +138,16 @@ static int has_conforming_footer(struct strbuf *sb, struct strbuf *sob,
return 1;
}
+static const char *gpg_sign_opt_quoted(struct replay_opts *opts)
+{
+ static struct strbuf buf = STRBUF_INIT;
+
+ strbuf_reset(&buf);
+ if (opts->gpg_sign)
+ sq_quotef(&buf, "-S%s", opts->gpg_sign);
+ return buf.buf;
+}
+
int sequencer_remove_state(struct replay_opts *opts)
{
struct strbuf dir = STRBUF_INIT;
@@ -468,7 +484,7 @@ static char **read_author_script(void)
* author metadata.
*/
static int run_git_commit(const char *defmsg, struct replay_opts *opts,
- int allow_empty)
+ int allow_empty, int edit)
{
char **env = NULL;
struct argv_array array;
@@ -477,17 +493,20 @@ static int run_git_commit(const char *defmsg, struct replay_opts *opts,
if (is_rebase_i(opts)) {
env = read_author_script();
- if (!env)
+ if (!env) {
+ const char *gpg_opt = gpg_sign_opt_quoted(opts);
+
return error("You have staged changes in your working "
"tree. If these changes are meant to be\n"
"squashed into the previous commit, run:\n\n"
- " git commit --amend $gpg_sign_opt_quoted\n\n"
+ " git commit --amend %s\n\n"
"If they are meant to go into a new commit, "
"run:\n\n"
- " git commit $gpg_sign_opt_quoted\n\n"
+ " git commit %s\n\n"
"In both cases, once you're done, continue "
"with:\n\n"
- " git rebase --continue\n");
+ " git rebase --continue\n", gpg_opt, gpg_opt);
+ }
}
argv_array_init(&array);
@@ -500,7 +519,7 @@ static int run_git_commit(const char *defmsg, struct replay_opts *opts,
argv_array_push(&array, "-s");
if (defmsg)
argv_array_pushl(&array, "-F", defmsg, NULL);
- if (opts->edit)
+ if (edit)
argv_array_push(&array, "-e");
else if (!opts->signoff && !opts->record_origin &&
git_config_get_value("commit.cleanup", &value))
@@ -767,7 +786,7 @@ static int do_pick_commit(enum todo_command command, struct commit *commit,
}
if (!opts->no_commit)
res = run_git_commit(opts->edit ? NULL : git_path_merge_msg(),
- opts, allow);
+ opts, allow, opts->edit);
leave:
free_message(commit, &msg);
@@ -989,8 +1008,21 @@ static int populate_opts_cb(const char *key, const char *value, void *data)
static int read_populate_opts(struct replay_opts *opts)
{
- if (is_rebase_i(opts))
+ if (is_rebase_i(opts)) {
+ struct strbuf buf = STRBUF_INIT;
+
+ if (read_oneliner(&buf, rebase_path_gpg_sign_opt(), 1)) {
+ if (!starts_with(buf.buf, "-S"))
+ strbuf_reset(&buf);
+ else {
+ free(opts->gpg_sign);
+ opts->gpg_sign = xstrdup(buf.buf + 2);
+ }
+ }
+ strbuf_release(&buf);
+
return 0;
+ }
if (!file_exists(git_path_opts_file()))
return 0;
--
2.10.1.583.g721a9e0
^ permalink raw reply related
* [PATCH v5 10/27] sequencer: avoid completely different messages for different actions
From: Johannes Schindelin @ 2016-10-21 12:24 UTC (permalink / raw)
To: git; +Cc: Junio C Hamano, Jakub Narębski, Johannes Sixt, Ramsay Jones
In-Reply-To: <cover.1477052405.git.johannes.schindelin@gmx.de>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
sequencer.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/sequencer.c b/sequencer.c
index 04fcfd8..120a8ee 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -229,11 +229,8 @@ static int error_dirty_index(struct replay_opts *opts)
if (read_cache_unmerged())
return error_resolve_conflict(action_name(opts));
- /* Different translation strings for cherry-pick and revert */
- if (opts->action == REPLAY_PICK)
- error(_("Your local changes would be overwritten by cherry-pick."));
- else
- error(_("Your local changes would be overwritten by revert."));
+ error(_("Your local changes would be overwritten by %s."),
+ action_name(opts));
if (advice_commit_before_merge)
advise(_("Commit your changes or stash them to proceed."));
--
2.10.1.583.g721a9e0
^ permalink raw reply related
* [PATCH v5 13/27] sequencer: prepare for rebase -i's commit functionality
From: Johannes Schindelin @ 2016-10-21 12:25 UTC (permalink / raw)
To: git; +Cc: Junio C Hamano, Jakub Narębski, Johannes Sixt, Ramsay Jones
In-Reply-To: <cover.1477052405.git.johannes.schindelin@gmx.de>
In interactive rebases, we commit a little bit differently than the
sequencer did so far: we heed the "author-script", the "message" and the
"amend" files in the .git/rebase-merge/ subdirectory.
Likewise, we may want to edit the commit message *even* when providing a
file containing the suggested commit message. Therefore we change the
code to not even provide a default message when we do not want any, and
to call the editor explicitly.
Also, in "interactive rebase" mode we want to skip reading the options
in the state directory of the cherry-pick/revert commands.
Finally, as interactive rebase's GPG settings are configured differently
from how cherry-pick (and therefore sequencer) handles them, we will
leave support for that to the next commit.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
sequencer.c | 99 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-------
1 file changed, 89 insertions(+), 10 deletions(-)
diff --git a/sequencer.c b/sequencer.c
index 3d1fdac..6d5fe94 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -27,6 +27,19 @@ static GIT_PATH_FUNC(git_path_todo_file, "sequencer/todo")
static GIT_PATH_FUNC(git_path_opts_file, "sequencer/opts")
static GIT_PATH_FUNC(git_path_head_file, "sequencer/head")
+/*
+ * A script to set the GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL, and
+ * GIT_AUTHOR_DATE that will be used for the commit that is currently
+ * being rebased.
+ */
+static GIT_PATH_FUNC(rebase_path_author_script, "rebase-merge/author-script")
+
+/* We will introduce the 'interactive rebase' mode later */
+static inline int is_rebase_i(const struct replay_opts *opts)
+{
+ return 0;
+}
+
static const char *get_dir(const struct replay_opts *opts)
{
return git_path_seq_dir();
@@ -370,19 +383,79 @@ static int is_index_unchanged(void)
}
/*
+ * Read the author-script file into an environment block, ready for use in
+ * run_command(), that can be free()d afterwards.
+ */
+static char **read_author_script(void)
+{
+ struct strbuf script = STRBUF_INIT;
+ int i, count = 0;
+ char *p, *p2, **env;
+ size_t env_size;
+
+ if (strbuf_read_file(&script, rebase_path_author_script(), 256) <= 0)
+ return NULL;
+
+ for (p = script.buf; *p; p++)
+ if (skip_prefix(p, "'\\\\''", (const char **)&p2))
+ strbuf_splice(&script, p - script.buf, p2 - p, "'", 1);
+ else if (*p == '\'')
+ strbuf_splice(&script, p-- - script.buf, 1, "", 0);
+ else if (*p == '\n') {
+ *p = '\0';
+ count++;
+ }
+
+ env_size = (count + 1) * sizeof(*env);
+ strbuf_grow(&script, env_size);
+ memmove(script.buf + env_size, script.buf, script.len);
+ p = script.buf + env_size;
+ env = (char **)strbuf_detach(&script, NULL);
+
+ for (i = 0; i < count; i++) {
+ env[i] = p;
+ p += strlen(p) + 1;
+ }
+ env[count] = NULL;
+
+ return env;
+}
+
+/*
* If we are cherry-pick, and if the merge did not result in
* hand-editing, we will hit this commit and inherit the original
* author date and name.
+ *
* If we are revert, or if our cherry-pick results in a hand merge,
* we had better say that the current user is responsible for that.
+ *
+ * An exception is when run_git_commit() is called during an
+ * interactive rebase: in that case, we will want to retain the
+ * author metadata.
*/
static int run_git_commit(const char *defmsg, struct replay_opts *opts,
int allow_empty)
{
+ char **env = NULL;
struct argv_array array;
int rc;
const char *value;
+ if (is_rebase_i(opts)) {
+ env = read_author_script();
+ if (!env)
+ return error("You have staged changes in your working "
+ "tree. If these changes are meant to be\n"
+ "squashed into the previous commit, run:\n\n"
+ " git commit --amend $gpg_sign_opt_quoted\n\n"
+ "If they are meant to go into a new commit, "
+ "run:\n\n"
+ " git commit $gpg_sign_opt_quoted\n\n"
+ "In both cases, once you're done, continue "
+ "with:\n\n"
+ " git rebase --continue\n");
+ }
+
argv_array_init(&array);
argv_array_push(&array, "commit");
argv_array_push(&array, "-n");
@@ -391,14 +464,13 @@ static int run_git_commit(const char *defmsg, struct replay_opts *opts,
argv_array_pushf(&array, "-S%s", opts->gpg_sign);
if (opts->signoff)
argv_array_push(&array, "-s");
- if (!opts->edit) {
- argv_array_push(&array, "-F");
- argv_array_push(&array, defmsg);
- if (!opts->signoff &&
- !opts->record_origin &&
- git_config_get_value("commit.cleanup", &value))
- argv_array_push(&array, "--cleanup=verbatim");
- }
+ if (defmsg)
+ argv_array_pushl(&array, "-F", defmsg, NULL);
+ if (opts->edit)
+ argv_array_push(&array, "-e");
+ else if (!opts->signoff && !opts->record_origin &&
+ git_config_get_value("commit.cleanup", &value))
+ argv_array_push(&array, "--cleanup=verbatim");
if (allow_empty)
argv_array_push(&array, "--allow-empty");
@@ -406,8 +478,11 @@ static int run_git_commit(const char *defmsg, struct replay_opts *opts,
if (opts->allow_empty_message)
argv_array_push(&array, "--allow-empty-message");
- rc = run_command_v_opt(array.argv, RUN_GIT_CMD);
+ rc = run_command_v_opt_cd_env(array.argv, RUN_GIT_CMD, NULL,
+ (const char *const *)env);
argv_array_clear(&array);
+ free(env);
+
return rc;
}
@@ -657,7 +732,8 @@ static int do_pick_commit(enum todo_command command, struct commit *commit,
goto leave;
}
if (!opts->no_commit)
- res = run_git_commit(git_path_merge_msg(), opts, allow);
+ res = run_git_commit(opts->edit ? NULL : git_path_merge_msg(),
+ opts, allow);
leave:
free_message(commit, &msg);
@@ -879,6 +955,9 @@ static int populate_opts_cb(const char *key, const char *value, void *data)
static int read_populate_opts(struct replay_opts *opts)
{
+ if (is_rebase_i(opts))
+ return 0;
+
if (!file_exists(git_path_opts_file()))
return 0;
/*
--
2.10.1.583.g721a9e0
^ permalink raw reply related
* [PATCH v5 12/27] sequencer: remember the onelines when parsing the todo file
From: Johannes Schindelin @ 2016-10-21 12:25 UTC (permalink / raw)
To: git; +Cc: Junio C Hamano, Jakub Narębski, Johannes Sixt, Ramsay Jones
In-Reply-To: <cover.1477052405.git.johannes.schindelin@gmx.de>
The `git-rebase-todo` file contains a list of commands. Most of those
commands have the form
<verb> <sha1> <oneline>
The <oneline> is displayed primarily for the user's convenience, as
rebase -i really interprets only the <verb> <sha1> part. However, there
are *some* places in interactive rebase where the <oneline> is used to
display messages, e.g. for reporting at which commit we stopped.
So let's just remember it when parsing the todo file; we keep a copy of
the entire todo file anyway (to write out the new `done` and
`git-rebase-todo` file just before processing each command), so all we
need to do is remember the begin offsets and lengths.
As we will have to parse and remember the command-line for `exec` commands
later, we do not call the field "oneline" but rather "arg" (and will reuse
that for exec's command-line).
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
sequencer.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/sequencer.c b/sequencer.c
index 9f22c5e..3d1fdac 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -706,6 +706,8 @@ static int read_and_refresh_cache(struct replay_opts *opts)
struct todo_item {
enum todo_command command;
struct commit *commit;
+ const char *arg;
+ int arg_len;
size_t offset_in_buf;
};
@@ -757,6 +759,9 @@ static int parse_insn_line(struct todo_item *item, const char *bol, char *eol)
status = get_sha1(bol, commit_sha1);
*end_of_object_name = saved;
+ item->arg = end_of_object_name + strspn(end_of_object_name, " \t");
+ item->arg_len = (int)(eol - item->arg);
+
if (status < 0)
return -1;
@@ -907,6 +912,8 @@ static int walk_revs_populate_todo(struct todo_list *todo_list,
item->command = command;
item->commit = commit;
+ item->arg = NULL;
+ item->arg_len = 0;
item->offset_in_buf = todo_list->buf.len;
subject_len = find_commit_subject(commit_buffer, &subject);
strbuf_addf(&todo_list->buf, "%s %s %.*s\n", command_string,
--
2.10.1.583.g721a9e0
^ permalink raw reply related
* [PATCH v5 11/27] sequencer: get rid of the subcommand field
From: Johannes Schindelin @ 2016-10-21 12:24 UTC (permalink / raw)
To: git; +Cc: Junio C Hamano, Jakub Narębski, Johannes Sixt, Ramsay Jones
In-Reply-To: <cover.1477052405.git.johannes.schindelin@gmx.de>
The subcommands are used exactly once, at the very beginning of
sequencer_pick_revisions(), to determine what to do. This is an
unnecessary level of indirection: we can simply call the correct
function to begin with. So let's do that.
While at it, ensure that the subcommands return an error code so that
they do not have to die() all over the place (bad practice for library
functions...).
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
builtin/revert.c | 36 ++++++++++++++++--------------------
sequencer.c | 35 +++++++++++------------------------
sequencer.h | 13 ++++---------
3 files changed, 31 insertions(+), 53 deletions(-)
diff --git a/builtin/revert.c b/builtin/revert.c
index ba5a88c..4ca5b51 100644
--- a/builtin/revert.c
+++ b/builtin/revert.c
@@ -71,7 +71,7 @@ static void verify_opt_compatible(const char *me, const char *base_opt, ...)
die(_("%s: %s cannot be used with %s"), me, this_opt, base_opt);
}
-static void parse_args(int argc, const char **argv, struct replay_opts *opts)
+static int run_sequencer(int argc, const char **argv, struct replay_opts *opts)
{
const char * const * usage_str = revert_or_cherry_pick_usage(opts);
const char *me = action_name(opts);
@@ -115,25 +115,15 @@ static void parse_args(int argc, const char **argv, struct replay_opts *opts)
if (opts->keep_redundant_commits)
opts->allow_empty = 1;
- /* Set the subcommand */
- if (cmd == 'q')
- opts->subcommand = REPLAY_REMOVE_STATE;
- else if (cmd == 'c')
- opts->subcommand = REPLAY_CONTINUE;
- else if (cmd == 'a')
- opts->subcommand = REPLAY_ROLLBACK;
- else
- opts->subcommand = REPLAY_NONE;
-
/* Check for incompatible command line arguments */
- if (opts->subcommand != REPLAY_NONE) {
+ if (cmd) {
char *this_operation;
- if (opts->subcommand == REPLAY_REMOVE_STATE)
+ if (cmd == 'q')
this_operation = "--quit";
- else if (opts->subcommand == REPLAY_CONTINUE)
+ else if (cmd == 'c')
this_operation = "--continue";
else {
- assert(opts->subcommand == REPLAY_ROLLBACK);
+ assert(cmd == 'a');
this_operation = "--abort";
}
@@ -156,7 +146,7 @@ static void parse_args(int argc, const char **argv, struct replay_opts *opts)
"--edit", opts->edit,
NULL);
- if (opts->subcommand != REPLAY_NONE) {
+ if (cmd) {
opts->revs = NULL;
} else {
struct setup_revision_opt s_r_opt;
@@ -178,6 +168,14 @@ static void parse_args(int argc, const char **argv, struct replay_opts *opts)
/* These option values will be free()d */
opts->gpg_sign = xstrdup_or_null(opts->gpg_sign);
opts->strategy = xstrdup_or_null(opts->strategy);
+
+ if (cmd == 'q')
+ return sequencer_remove_state(opts);
+ if (cmd == 'c')
+ return sequencer_continue(opts);
+ if (cmd == 'a')
+ return sequencer_rollback(opts);
+ return sequencer_pick_revisions(opts);
}
int cmd_revert(int argc, const char **argv, const char *prefix)
@@ -189,8 +187,7 @@ int cmd_revert(int argc, const char **argv, const char *prefix)
opts.edit = 1;
opts.action = REPLAY_REVERT;
git_config(git_default_config, NULL);
- parse_args(argc, argv, &opts);
- res = sequencer_pick_revisions(&opts);
+ res = run_sequencer(argc, argv, &opts);
if (res < 0)
die(_("revert failed"));
return res;
@@ -203,8 +200,7 @@ int cmd_cherry_pick(int argc, const char **argv, const char *prefix)
opts.action = REPLAY_PICK;
git_config(git_default_config, NULL);
- parse_args(argc, argv, &opts);
- res = sequencer_pick_revisions(&opts);
+ res = run_sequencer(argc, argv, &opts);
if (res < 0)
die(_("cherry-pick failed"));
return res;
diff --git a/sequencer.c b/sequencer.c
index 120a8ee..9f22c5e 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -119,7 +119,7 @@ static int has_conforming_footer(struct strbuf *sb, struct strbuf *sob,
return 1;
}
-static void remove_sequencer_state(const struct replay_opts *opts)
+int sequencer_remove_state(struct replay_opts *opts)
{
struct strbuf dir = STRBUF_INIT;
int i;
@@ -133,6 +133,8 @@ static void remove_sequencer_state(const struct replay_opts *opts)
strbuf_addf(&dir, "%s", get_dir(opts));
remove_dir_recursively(&dir, 0);
strbuf_release(&dir);
+
+ return 0;
}
static const char *action_name(const struct replay_opts *opts)
@@ -975,7 +977,7 @@ static int rollback_single_pick(void)
return reset_for_rollback(head_sha1);
}
-static int sequencer_rollback(struct replay_opts *opts)
+int sequencer_rollback(struct replay_opts *opts)
{
FILE *f;
unsigned char sha1[20];
@@ -1010,9 +1012,8 @@ static int sequencer_rollback(struct replay_opts *opts)
}
if (reset_for_rollback(sha1))
goto fail;
- remove_sequencer_state(opts);
strbuf_release(&buf);
- return 0;
+ return sequencer_remove_state(opts);
fail:
strbuf_release(&buf);
return -1;
@@ -1097,8 +1098,7 @@ static int pick_commits(struct todo_list *todo_list, struct replay_opts *opts)
* Sequence of picks finished successfully; cleanup by
* removing the .git/sequencer directory
*/
- remove_sequencer_state(opts);
- return 0;
+ return sequencer_remove_state(opts);
}
static int continue_single_pick(void)
@@ -1111,11 +1111,14 @@ static int continue_single_pick(void)
return run_command_v_opt(argv, RUN_GIT_CMD);
}
-static int sequencer_continue(struct replay_opts *opts)
+int sequencer_continue(struct replay_opts *opts)
{
struct todo_list todo_list = TODO_LIST_INIT;
int res;
+ if (read_and_refresh_cache(opts))
+ return -1;
+
if (!file_exists(get_todo_path(opts)))
return continue_single_pick();
if (read_populate_opts(opts))
@@ -1154,26 +1157,10 @@ int sequencer_pick_revisions(struct replay_opts *opts)
unsigned char sha1[20];
int i, res;
- if (opts->subcommand == REPLAY_NONE)
- assert(opts->revs);
-
+ assert(opts->revs);
if (read_and_refresh_cache(opts))
return -1;
- /*
- * Decide what to do depending on the arguments; a fresh
- * cherry-pick should be handled differently from an existing
- * one that is being continued
- */
- if (opts->subcommand == REPLAY_REMOVE_STATE) {
- remove_sequencer_state(opts);
- return 0;
- }
- if (opts->subcommand == REPLAY_ROLLBACK)
- return sequencer_rollback(opts);
- if (opts->subcommand == REPLAY_CONTINUE)
- return sequencer_continue(opts);
-
for (i = 0; i < opts->revs->pending.nr; i++) {
unsigned char sha1[20];
const char *name = opts->revs->pending.objects[i].name;
diff --git a/sequencer.h b/sequencer.h
index 8453669..7a513c5 100644
--- a/sequencer.h
+++ b/sequencer.h
@@ -10,16 +10,8 @@ enum replay_action {
REPLAY_PICK
};
-enum replay_subcommand {
- REPLAY_NONE,
- REPLAY_REMOVE_STATE,
- REPLAY_CONTINUE,
- REPLAY_ROLLBACK
-};
-
struct replay_opts {
enum replay_action action;
- enum replay_subcommand subcommand;
/* Boolean options */
int edit;
@@ -44,9 +36,12 @@ struct replay_opts {
/* Only used by REPLAY_NONE */
struct rev_info *revs;
};
-#define REPLAY_OPTS_INIT { -1, -1 }
+#define REPLAY_OPTS_INIT { -1 }
int sequencer_pick_revisions(struct replay_opts *opts);
+int sequencer_continue(struct replay_opts *opts);
+int sequencer_rollback(struct replay_opts *opts);
+int sequencer_remove_state(struct replay_opts *opts);
extern const char sign_off_header[];
--
2.10.1.583.g721a9e0
^ permalink raw reply related
* [PATCH v5 07/27] sequencer: refactor the code to obtain a short commit name
From: Johannes Schindelin @ 2016-10-21 12:24 UTC (permalink / raw)
To: git; +Cc: Junio C Hamano, Jakub Narębski, Johannes Sixt, Ramsay Jones
In-Reply-To: <cover.1477052405.git.johannes.schindelin@gmx.de>
Not only does this DRY up the code (providing a better documentation what
the code is about, as well as allowing to change the behavior in a single
place), it also makes it substantially shorter to use the same
functionality in functions to be introduced when we teach the sequencer to
process interactive-rebase's git-rebase-todo file.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
sequencer.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/sequencer.c b/sequencer.c
index fb0b94b..499f5ee 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -147,13 +147,18 @@ struct commit_message {
const char *message;
};
+static const char *short_commit_name(struct commit *commit)
+{
+ return find_unique_abbrev(commit->object.oid.hash, DEFAULT_ABBREV);
+}
+
static int get_message(struct commit *commit, struct commit_message *out)
{
const char *abbrev, *subject;
int subject_len;
out->message = logmsg_reencode(commit, NULL, get_commit_output_encoding());
- abbrev = find_unique_abbrev(commit->object.oid.hash, DEFAULT_ABBREV);
+ abbrev = short_commit_name(commit);
subject_len = find_commit_subject(out->message, &subject);
@@ -621,8 +626,7 @@ static int do_pick_commit(struct commit *commit, struct replay_opts *opts)
error(opts->action == REPLAY_REVERT
? _("could not revert %s... %s")
: _("could not apply %s... %s"),
- find_unique_abbrev(commit->object.oid.hash, DEFAULT_ABBREV),
- msg.subject);
+ short_commit_name(commit), msg.subject);
print_advice(res == 1, opts);
rerere(opts->allow_rerere_auto);
goto leave;
--
2.10.1.583.g721a9e0
^ permalink raw reply related
* [PATCH v5 09/27] sequencer: strip CR from the todo script
From: Johannes Schindelin @ 2016-10-21 12:24 UTC (permalink / raw)
To: git; +Cc: Junio C Hamano, Jakub Narębski, Johannes Sixt, Ramsay Jones
In-Reply-To: <cover.1477052405.git.johannes.schindelin@gmx.de>
It is not unheard of that editors on Windows write CR/LF even if the
file originally had only LF. This is particularly awkward for exec lines
of a rebase -i todo sheet. Take for example the insn "exec echo": The
shell script parser splits at the LF and leaves the CR attached to
"echo", which leads to the unknown command "echo\r".
Work around that by stripping CR when reading the todo commands, as we
already do for LF.
This happens to fix t9903.14 and .15 in MSYS1 environments (with the
rebase--helper patches based on this patch series): the todo script
constructed in such a setup contains CR/LF thanks to MSYS1 runtime's
cleverness.
Based on a report and a patch by Johannes Sixt.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
sequencer.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/sequencer.c b/sequencer.c
index 145de78..04fcfd8 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -776,6 +776,9 @@ static int parse_insn_buffer(char *buf, struct todo_list *todo_list)
next_p = *eol ? eol + 1 /* skip LF */ : eol;
+ if (p != eol && eol[-1] == '\r')
+ eol--; /* strip Carriage Return */
+
item = append_new_todo(todo_list);
item->offset_in_buf = p - todo_list->buf.buf;
if (parse_insn_line(item, p, eol)) {
--
2.10.1.583.g721a9e0
^ permalink raw reply related
* [PATCH v5 08/27] sequencer: completely revamp the "todo" script parsing
From: Johannes Schindelin @ 2016-10-21 12:24 UTC (permalink / raw)
To: git; +Cc: Junio C Hamano, Jakub Narębski, Johannes Sixt, Ramsay Jones
In-Reply-To: <cover.1477052405.git.johannes.schindelin@gmx.de>
When we came up with the "sequencer" idea, we really wanted to have
kind of a plumbing equivalent of the interactive rebase. Hence the
choice of words: the "todo" script, a "pick", etc.
However, when it came time to implement the entire shebang, somehow this
idea got lost and the sequencer was used as working horse for
cherry-pick and revert instead. So as not to interfere with the
interactive rebase, it even uses a separate directory to store its
state.
Furthermore, it also is stupidly strict about the "todo" script it
accepts: while it parses commands in a way that was *designed* to be
similar to the interactive rebase, it then goes on to *error out* if the
commands disagree with the overall action (cherry-pick or revert).
Finally, the sequencer code chose to deviate from the interactive rebase
code insofar that when it comes to writing the file with the remaining
commands, it *reformats* the "todo" script instead of just writing the
part of the parsed script that were not yet processed. This is not only
unnecessary churn, but might well lose information that is valuable to
the user (i.e. comments after the commands).
Let's just bite the bullet and rewrite the entire parser; the code now
becomes not only more elegant: it allows us to go on and teach the
sequencer how to parse *true* "todo" scripts as used by the interactive
rebase itself. In a way, the sequencer is about to grow up to do its
older brother's job. Better.
In particular, we choose to maintain the list of commands in an array
instead of a linked list: this is flexible enough to allow us later on to
even implement rebase -i's reordering of fixup!/squash! commits very
easily (and with a very nice speed bonus, at least on Windows).
While at it, do not stop at the first problem, but list *all* of the
problems. This will help the user when the sequencer will do `rebase
-i`'s work by allowing to address all issues in one go rather than going
back and forth until the todo list is valid.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
sequencer.c | 284 ++++++++++++++++++++++++++++++++++--------------------------
1 file changed, 163 insertions(+), 121 deletions(-)
diff --git a/sequencer.c b/sequencer.c
index 499f5ee..145de78 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -470,7 +470,26 @@ static int allow_empty(struct replay_opts *opts, struct commit *commit)
return 1;
}
-static int do_pick_commit(struct commit *commit, struct replay_opts *opts)
+enum todo_command {
+ TODO_PICK = 0,
+ TODO_REVERT
+};
+
+static const char *todo_command_strings[] = {
+ "pick",
+ "revert"
+};
+
+static const char *command_to_string(const enum todo_command command)
+{
+ if (command < ARRAY_SIZE(todo_command_strings))
+ return todo_command_strings[command];
+ die("Unknown command: %d", command);
+}
+
+
+static int do_pick_commit(enum todo_command command, struct commit *commit,
+ struct replay_opts *opts)
{
unsigned char head[20];
struct commit *base, *next, *parent;
@@ -529,10 +548,11 @@ static int do_pick_commit(struct commit *commit, struct replay_opts *opts)
return fast_forward_to(commit->object.oid.hash, head, unborn, opts);
if (parent && parse_commit(parent) < 0)
- /* TRANSLATORS: The first %s will be "revert" or
- "cherry-pick", the second %s a SHA1 */
+ /* TRANSLATORS: The first %s will be a "todo" command like
+ "revert" or "pick", the second %s a SHA1. */
return error(_("%s: cannot parse parent commit %s"),
- action_name(opts), oid_to_hex(&parent->object.oid));
+ command_to_string(command),
+ oid_to_hex(&parent->object.oid));
if (get_message(commit, &msg) != 0)
return error(_("Cannot get commit message for %s"),
@@ -545,7 +565,7 @@ static int do_pick_commit(struct commit *commit, struct replay_opts *opts)
* reverse of it if we are revert.
*/
- if (opts->action == REPLAY_REVERT) {
+ if (command == TODO_REVERT) {
base = commit;
base_label = msg.label;
next = parent;
@@ -586,7 +606,7 @@ static int do_pick_commit(struct commit *commit, struct replay_opts *opts)
}
}
- if (!opts->strategy || !strcmp(opts->strategy, "recursive") || opts->action == REPLAY_REVERT) {
+ if (!opts->strategy || !strcmp(opts->strategy, "recursive") || command == TODO_REVERT) {
res = do_recursive_merge(base, next, base_label, next_label,
head, &msgbuf, opts);
if (res < 0)
@@ -613,17 +633,17 @@ static int do_pick_commit(struct commit *commit, struct replay_opts *opts)
* However, if the merge did not even start, then we don't want to
* write it at all.
*/
- if (opts->action == REPLAY_PICK && !opts->no_commit && (res == 0 || res == 1) &&
+ if (command == TODO_PICK && !opts->no_commit && (res == 0 || res == 1) &&
update_ref(NULL, "CHERRY_PICK_HEAD", commit->object.oid.hash, NULL,
REF_NODEREF, UPDATE_REFS_MSG_ON_ERR))
res = -1;
- if (opts->action == REPLAY_REVERT && ((opts->no_commit && res == 0) || res == 1) &&
+ if (command == TODO_REVERT && ((opts->no_commit && res == 0) || res == 1) &&
update_ref(NULL, "REVERT_HEAD", commit->object.oid.hash, NULL,
REF_NODEREF, UPDATE_REFS_MSG_ON_ERR))
res = -1;
if (res) {
- error(opts->action == REPLAY_REVERT
+ error(command == TODO_REVERT
? _("could not revert %s... %s")
: _("could not apply %s... %s"),
short_commit_name(commit), msg.subject);
@@ -684,116 +704,122 @@ static int read_and_refresh_cache(struct replay_opts *opts)
return 0;
}
-static int format_todo(struct strbuf *buf, struct commit_list *todo_list,
- struct replay_opts *opts)
+struct todo_item {
+ enum todo_command command;
+ struct commit *commit;
+ size_t offset_in_buf;
+};
+
+struct todo_list {
+ struct strbuf buf;
+ struct todo_item *items;
+ int nr, alloc, current;
+};
+
+#define TODO_LIST_INIT { STRBUF_INIT }
+
+static void todo_list_release(struct todo_list *todo_list)
{
- struct commit_list *cur = NULL;
- const char *sha1_abbrev = NULL;
- const char *action_str = opts->action == REPLAY_REVERT ? "revert" : "pick";
- const char *subject;
- int subject_len;
+ strbuf_release(&todo_list->buf);
+ free(todo_list->items);
+ todo_list->items = NULL;
+ todo_list->nr = todo_list->alloc = 0;
+}
- for (cur = todo_list; cur; cur = cur->next) {
- const char *commit_buffer = get_commit_buffer(cur->item, NULL);
- sha1_abbrev = find_unique_abbrev(cur->item->object.oid.hash, DEFAULT_ABBREV);
- subject_len = find_commit_subject(commit_buffer, &subject);
- strbuf_addf(buf, "%s %s %.*s\n", action_str, sha1_abbrev,
- subject_len, subject);
- unuse_commit_buffer(cur->item, commit_buffer);
- }
- return 0;
+static struct todo_item *append_new_todo(struct todo_list *todo_list)
+{
+ ALLOC_GROW(todo_list->items, todo_list->nr + 1, todo_list->alloc);
+ return todo_list->items + todo_list->nr++;
}
-static struct commit *parse_insn_line(char *bol, char *eol, struct replay_opts *opts)
+static int parse_insn_line(struct todo_item *item, const char *bol, char *eol)
{
unsigned char commit_sha1[20];
- enum replay_action action;
char *end_of_object_name;
- int saved, status, padding;
-
- if (starts_with(bol, "pick")) {
- action = REPLAY_PICK;
- bol += strlen("pick");
- } else if (starts_with(bol, "revert")) {
- action = REPLAY_REVERT;
- bol += strlen("revert");
- } else
- return NULL;
+ int i, saved, status, padding;
+
+ for (i = 0; i < ARRAY_SIZE(todo_command_strings); i++)
+ if (skip_prefix(bol, todo_command_strings[i], &bol)) {
+ item->command = i;
+ break;
+ }
+ if (i >= ARRAY_SIZE(todo_command_strings))
+ return -1;
/* Eat up extra spaces/ tabs before object name */
padding = strspn(bol, " \t");
if (!padding)
- return NULL;
+ return -1;
bol += padding;
- end_of_object_name = bol + strcspn(bol, " \t\n");
+ end_of_object_name = (char *) bol + strcspn(bol, " \t\n");
saved = *end_of_object_name;
*end_of_object_name = '\0';
status = get_sha1(bol, commit_sha1);
*end_of_object_name = saved;
- /*
- * Verify that the action matches up with the one in
- * opts; we don't support arbitrary instructions
- */
- if (action != opts->action) {
- if (action == REPLAY_REVERT)
- error((opts->action == REPLAY_REVERT)
- ? _("Cannot revert during another revert.")
- : _("Cannot revert during a cherry-pick."));
- else
- error((opts->action == REPLAY_REVERT)
- ? _("Cannot cherry-pick during a revert.")
- : _("Cannot cherry-pick during another cherry-pick."));
- return NULL;
- }
-
if (status < 0)
- return NULL;
+ return -1;
- return lookup_commit_reference(commit_sha1);
+ item->commit = lookup_commit_reference(commit_sha1);
+ return !item->commit;
}
-static int parse_insn_buffer(char *buf, struct commit_list **todo_list,
- struct replay_opts *opts)
+static int parse_insn_buffer(char *buf, struct todo_list *todo_list)
{
- struct commit_list **next = todo_list;
- struct commit *commit;
- char *p = buf;
- int i;
+ struct todo_item *item;
+ char *p = buf, *next_p;
+ int i, res = 0;
- for (i = 1; *p; i++) {
+ for (i = 1; *p; i++, p = next_p) {
char *eol = strchrnul(p, '\n');
- commit = parse_insn_line(p, eol, opts);
- if (!commit)
- return error(_("Could not parse line %d."), i);
- next = commit_list_append(commit, next);
- p = *eol ? eol + 1 : eol;
+
+ next_p = *eol ? eol + 1 /* skip LF */ : eol;
+
+ item = append_new_todo(todo_list);
+ item->offset_in_buf = p - todo_list->buf.buf;
+ if (parse_insn_line(item, p, eol)) {
+ res = error(_("Invalid line %d: %.*s"),
+ i, (int)(eol - p), p);
+ item->command = -1;
+ }
}
- if (!*todo_list)
+ if (!todo_list->nr)
return error(_("No commits parsed."));
- return 0;
+ return res;
}
-static int read_populate_todo(struct commit_list **todo_list,
+static int read_populate_todo(struct todo_list *todo_list,
struct replay_opts *opts)
{
const char *todo_file = get_todo_path(opts);
- struct strbuf buf = STRBUF_INIT;
int fd, res;
+ strbuf_reset(&todo_list->buf);
fd = open(todo_file, O_RDONLY);
if (fd < 0)
return error_errno(_("Could not open %s"), todo_file);
- if (strbuf_read(&buf, fd, 0) < 0) {
+ if (strbuf_read(&todo_list->buf, fd, 0) < 0) {
close(fd);
- strbuf_release(&buf);
return error(_("Could not read %s."), todo_file);
}
close(fd);
- res = parse_insn_buffer(buf.buf, todo_list, opts);
- strbuf_release(&buf);
+ res = parse_insn_buffer(todo_list->buf.buf, todo_list);
+ if (!res) {
+ enum todo_command valid =
+ opts->action == REPLAY_PICK ? TODO_PICK : TODO_REVERT;
+ int i;
+
+ for (i = 0; i < todo_list->nr; i++)
+ if (valid == todo_list->items[i].command)
+ continue;
+ else if (valid == TODO_PICK)
+ return error(_("Cannot cherry-pick during a revert."));
+ else
+ return error(_("Cannot revert during a cherry-pick."));
+ }
+
if (res)
return error(_("Unusable instruction sheet: %s"), todo_file);
return 0;
@@ -860,18 +886,31 @@ static int read_populate_opts(struct replay_opts *opts)
return 0;
}
-static int walk_revs_populate_todo(struct commit_list **todo_list,
+static int walk_revs_populate_todo(struct todo_list *todo_list,
struct replay_opts *opts)
{
+ enum todo_command command = opts->action == REPLAY_PICK ?
+ TODO_PICK : TODO_REVERT;
+ const char *command_string = todo_command_strings[command];
struct commit *commit;
- struct commit_list **next;
if (prepare_revs(opts))
return -1;
- next = todo_list;
- while ((commit = get_revision(opts->revs)))
- next = commit_list_append(commit, next);
+ while ((commit = get_revision(opts->revs))) {
+ struct todo_item *item = append_new_todo(todo_list);
+ const char *commit_buffer = get_commit_buffer(commit, NULL);
+ const char *subject;
+ int subject_len;
+
+ item->command = command;
+ item->commit = commit;
+ item->offset_in_buf = todo_list->buf.len;
+ subject_len = find_commit_subject(commit_buffer, &subject);
+ strbuf_addf(&todo_list->buf, "%s %s %.*s\n", command_string,
+ short_commit_name(commit), subject_len, subject);
+ unuse_commit_buffer(commit, commit_buffer);
+ }
return 0;
}
@@ -979,30 +1018,22 @@ static int sequencer_rollback(struct replay_opts *opts)
return -1;
}
-static int save_todo(struct commit_list *todo_list, struct replay_opts *opts)
+static int save_todo(struct todo_list *todo_list, struct replay_opts *opts)
{
static struct lock_file todo_lock;
- struct strbuf buf = STRBUF_INIT;
- int fd;
+ const char *todo_path = get_todo_path(opts);
+ int next = todo_list->current, offset, fd;
- fd = hold_lock_file_for_update(&todo_lock, git_path_todo_file(), 0);
+ fd = hold_lock_file_for_update(&todo_lock, todo_path, 0);
if (fd < 0)
- return error_errno(_("Could not lock '%s'"),
- git_path_todo_file());
- if (format_todo(&buf, todo_list, opts) < 0) {
- strbuf_release(&buf);
- return error(_("Could not format %s."), git_path_todo_file());
- }
- if (write_in_full(fd, buf.buf, buf.len) < 0) {
- strbuf_release(&buf);
- return error_errno(_("Could not write to %s"),
- git_path_todo_file());
- }
- if (commit_lock_file(&todo_lock) < 0) {
- strbuf_release(&buf);
- return error(_("Error wrapping up %s."), git_path_todo_file());
- }
- strbuf_release(&buf);
+ return error_errno(_("Could not lock '%s'"), todo_path);
+ offset = next < todo_list->nr ?
+ todo_list->items[next].offset_in_buf : todo_list->buf.len;
+ if (write_in_full(fd, todo_list->buf.buf + offset,
+ todo_list->buf.len - offset) < 0)
+ return error_errno(_("Could not write to '%s'"), todo_path);
+ if (commit_lock_file(&todo_lock) < 0)
+ return error(_("Error wrapping up %s."), todo_path);
return 0;
}
@@ -1041,9 +1072,8 @@ static int save_opts(struct replay_opts *opts)
return res;
}
-static int pick_commits(struct commit_list *todo_list, struct replay_opts *opts)
+static int pick_commits(struct todo_list *todo_list, struct replay_opts *opts)
{
- struct commit_list *cur;
int res;
setenv(GIT_REFLOG_ACTION, action_name(opts), 0);
@@ -1053,10 +1083,12 @@ static int pick_commits(struct commit_list *todo_list, struct replay_opts *opts)
if (read_and_refresh_cache(opts))
return -1;
- for (cur = todo_list; cur; cur = cur->next) {
- if (save_todo(cur, opts))
+ while (todo_list->current < todo_list->nr) {
+ struct todo_item *item = todo_list->items + todo_list->current;
+ if (save_todo(todo_list, opts))
return -1;
- res = do_pick_commit(cur->item, opts);
+ res = do_pick_commit(item->command, item->commit, opts);
+ todo_list->current++;
if (res)
return res;
}
@@ -1081,38 +1113,46 @@ static int continue_single_pick(void)
static int sequencer_continue(struct replay_opts *opts)
{
- struct commit_list *todo_list = NULL;
+ struct todo_list todo_list = TODO_LIST_INIT;
+ int res;
if (!file_exists(get_todo_path(opts)))
return continue_single_pick();
- if (read_populate_opts(opts) ||
- read_populate_todo(&todo_list, opts))
+ if (read_populate_opts(opts))
return -1;
+ if ((res = read_populate_todo(&todo_list, opts)))
+ goto release_todo_list;
/* Verify that the conflict has been resolved */
if (file_exists(git_path_cherry_pick_head()) ||
file_exists(git_path_revert_head())) {
- int ret = continue_single_pick();
- if (ret)
- return ret;
+ res = continue_single_pick();
+ if (res)
+ goto release_todo_list;
}
- if (index_differs_from("HEAD", 0))
- return error_dirty_index(opts);
- todo_list = todo_list->next;
- return pick_commits(todo_list, opts);
+ if (index_differs_from("HEAD", 0)) {
+ res = error_dirty_index(opts);
+ goto release_todo_list;
+ }
+ todo_list.current++;
+ res = pick_commits(&todo_list, opts);
+release_todo_list:
+ todo_list_release(&todo_list);
+ return res;
}
static int single_pick(struct commit *cmit, struct replay_opts *opts)
{
setenv(GIT_REFLOG_ACTION, action_name(opts), 0);
- return do_pick_commit(cmit, opts);
+ return do_pick_commit(opts->action == REPLAY_PICK ?
+ TODO_PICK : TODO_REVERT, cmit, opts);
}
int sequencer_pick_revisions(struct replay_opts *opts)
{
- struct commit_list *todo_list = NULL;
+ struct todo_list todo_list = TODO_LIST_INIT;
unsigned char sha1[20];
- int i;
+ int i, res;
if (opts->subcommand == REPLAY_NONE)
assert(opts->revs);
@@ -1187,7 +1227,9 @@ int sequencer_pick_revisions(struct replay_opts *opts)
return -1;
if (save_opts(opts))
return -1;
- return pick_commits(todo_list, opts);
+ res = pick_commits(&todo_list, opts);
+ todo_list_release(&todo_list);
+ return res;
}
void append_signoff(struct strbuf *msgbuf, int ignore_footer, unsigned flag)
--
2.10.1.583.g721a9e0
^ permalink raw reply related
* [PATCH v5 06/27] sequencer: future-proof read_populate_todo()
From: Johannes Schindelin @ 2016-10-21 12:24 UTC (permalink / raw)
To: git; +Cc: Junio C Hamano, Jakub Narębski, Johannes Sixt, Ramsay Jones
In-Reply-To: <cover.1477052405.git.johannes.schindelin@gmx.de>
Over the next commits, we will work on improving the sequencer to the
point where it can process the todo script of an interactive rebase. To
that end, we will need to teach the sequencer to read interactive
rebase's todo file. In preparation, we consolidate all places where
that todo file is needed to call a function that we will later extend.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
sequencer.c | 18 +++++++++++-------
1 file changed, 11 insertions(+), 7 deletions(-)
diff --git a/sequencer.c b/sequencer.c
index 04c55f2..fb0b94b 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -32,6 +32,11 @@ static const char *get_dir(const struct replay_opts *opts)
return git_path_seq_dir();
}
+static const char *get_todo_path(const struct replay_opts *opts)
+{
+ return git_path_todo_file();
+}
+
static int is_rfc2822_line(const char *buf, int len)
{
int i;
@@ -769,25 +774,24 @@ static int parse_insn_buffer(char *buf, struct commit_list **todo_list,
static int read_populate_todo(struct commit_list **todo_list,
struct replay_opts *opts)
{
+ const char *todo_file = get_todo_path(opts);
struct strbuf buf = STRBUF_INIT;
int fd, res;
- fd = open(git_path_todo_file(), O_RDONLY);
+ fd = open(todo_file, O_RDONLY);
if (fd < 0)
- return error_errno(_("Could not open %s"),
- git_path_todo_file());
+ return error_errno(_("Could not open %s"), todo_file);
if (strbuf_read(&buf, fd, 0) < 0) {
close(fd);
strbuf_release(&buf);
- return error(_("Could not read %s."), git_path_todo_file());
+ return error(_("Could not read %s."), todo_file);
}
close(fd);
res = parse_insn_buffer(buf.buf, todo_list, opts);
strbuf_release(&buf);
if (res)
- return error(_("Unusable instruction sheet: %s"),
- git_path_todo_file());
+ return error(_("Unusable instruction sheet: %s"), todo_file);
return 0;
}
@@ -1075,7 +1079,7 @@ static int sequencer_continue(struct replay_opts *opts)
{
struct commit_list *todo_list = NULL;
- if (!file_exists(git_path_todo_file()))
+ if (!file_exists(get_todo_path(opts)))
return continue_single_pick();
if (read_populate_opts(opts) ||
read_populate_todo(&todo_list, opts))
--
2.10.1.583.g721a9e0
^ permalink raw reply related
* [PATCH v5 05/27] sequencer: plug memory leaks for the option values
From: Johannes Schindelin @ 2016-10-21 12:24 UTC (permalink / raw)
To: git; +Cc: Junio C Hamano, Jakub Narębski, Johannes Sixt, Ramsay Jones
In-Reply-To: <cover.1477052405.git.johannes.schindelin@gmx.de>
The sequencer is our attempt to lib-ify cherry-pick. Yet it behaves
like a one-shot command when it reads its configuration: memory is
allocated and released only when the command exits.
This is kind of okay for git-cherry-pick, which *is* a one-shot
command. All the work to make the sequencer its work horse was
done to allow using the functionality as a library function, though,
including proper clean-up after use.
To remedy that, we now take custody of the option values in question,
requiring those values to be malloc()ed or strdup()ed (an alternative
approach, to add a list of pointers to malloc()ed data and to ask the
sequencer to release all of them in the end, was proposed earlier but
rejected during review).
Note: this means that we now have to take care to strdup() the values
passed via the command-line.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
builtin/revert.c | 4 ++++
sequencer.c | 26 ++++++++++++++++++++++----
sequencer.h | 6 +++---
3 files changed, 29 insertions(+), 7 deletions(-)
diff --git a/builtin/revert.c b/builtin/revert.c
index 7365559..ba5a88c 100644
--- a/builtin/revert.c
+++ b/builtin/revert.c
@@ -174,6 +174,10 @@ static void parse_args(int argc, const char **argv, struct replay_opts *opts)
if (argc > 1)
usage_with_options(usage_str, options);
+
+ /* These option values will be free()d */
+ opts->gpg_sign = xstrdup_or_null(opts->gpg_sign);
+ opts->strategy = xstrdup_or_null(opts->strategy);
}
int cmd_revert(int argc, const char **argv, const char *prefix)
diff --git a/sequencer.c b/sequencer.c
index 8d272fb..04c55f2 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -117,6 +117,13 @@ static int has_conforming_footer(struct strbuf *sb, struct strbuf *sob,
static void remove_sequencer_state(const struct replay_opts *opts)
{
struct strbuf dir = STRBUF_INIT;
+ int i;
+
+ free(opts->gpg_sign);
+ free(opts->strategy);
+ for (i = 0; i < opts->xopts_nr; i++)
+ free(opts->xopts[i]);
+ free(opts->xopts);
strbuf_addf(&dir, "%s", get_dir(opts));
remove_dir_recursively(&dir, 0);
@@ -280,7 +287,7 @@ static int do_recursive_merge(struct commit *base, struct commit *next,
struct merge_options o;
struct tree *result, *next_tree, *base_tree, *head_tree;
int clean;
- const char **xopt;
+ char **xopt;
static struct lock_file index_lock;
hold_locked_index(&index_lock, 1);
@@ -583,7 +590,8 @@ static int do_pick_commit(struct commit *commit, struct replay_opts *opts)
commit_list_insert(base, &common);
commit_list_insert(next, &remotes);
- res |= try_merge_command(opts->strategy, opts->xopts_nr, opts->xopts,
+ res |= try_merge_command(opts->strategy,
+ opts->xopts_nr, (const char **)opts->xopts,
common, sha1_to_hex(head), remotes);
free_commit_list(common);
free_commit_list(remotes);
@@ -783,6 +791,16 @@ static int read_populate_todo(struct commit_list **todo_list,
return 0;
}
+static int git_config_string_dup(char **dest,
+ const char *var, const char *value)
+{
+ if (!value)
+ return config_error_nonbool(var);
+ free(*dest);
+ *dest = xstrdup(value);
+ return 0;
+}
+
static int populate_opts_cb(const char *key, const char *value, void *data)
{
struct replay_opts *opts = data;
@@ -803,9 +821,9 @@ static int populate_opts_cb(const char *key, const char *value, void *data)
else if (!strcmp(key, "options.mainline"))
opts->mainline = git_config_int(key, value);
else if (!strcmp(key, "options.strategy"))
- git_config_string(&opts->strategy, key, value);
+ git_config_string_dup(&opts->strategy, key, value);
else if (!strcmp(key, "options.gpg-sign"))
- git_config_string(&opts->gpg_sign, key, value);
+ git_config_string_dup(&opts->gpg_sign, key, value);
else if (!strcmp(key, "options.strategy-option")) {
ALLOC_GROW(opts->xopts, opts->xopts_nr + 1, opts->xopts_alloc);
opts->xopts[opts->xopts_nr++] = xstrdup(value);
diff --git a/sequencer.h b/sequencer.h
index dd4d33a..8453669 100644
--- a/sequencer.h
+++ b/sequencer.h
@@ -34,11 +34,11 @@ struct replay_opts {
int mainline;
- const char *gpg_sign;
+ char *gpg_sign;
/* Merge strategy */
- const char *strategy;
- const char **xopts;
+ char *strategy;
+ char **xopts;
size_t xopts_nr, xopts_alloc;
/* Only used by REPLAY_NONE */
--
2.10.1.583.g721a9e0
^ permalink raw reply related
* [PATCH v5 03/27] sequencer: avoid unnecessary indirection
From: Johannes Schindelin @ 2016-10-21 12:24 UTC (permalink / raw)
To: git; +Cc: Junio C Hamano, Jakub Narębski, Johannes Sixt, Ramsay Jones
In-Reply-To: <cover.1477052405.git.johannes.schindelin@gmx.de>
We really do not need the *pointer to a* pointer to the options in
the read_populate_opts() function.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
sequencer.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/sequencer.c b/sequencer.c
index cb16cbd..c2fbf6f 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -813,7 +813,7 @@ static int populate_opts_cb(const char *key, const char *value, void *data)
return 0;
}
-static int read_populate_opts(struct replay_opts **opts)
+static int read_populate_opts(struct replay_opts *opts)
{
if (!file_exists(git_path_opts_file()))
return 0;
@@ -823,7 +823,7 @@ static int read_populate_opts(struct replay_opts **opts)
* about this case, though, because we wrote that file ourselves, so we
* are pretty certain that it is syntactically correct.
*/
- if (git_config_from_file(populate_opts_cb, git_path_opts_file(), *opts) < 0)
+ if (git_config_from_file(populate_opts_cb, git_path_opts_file(), opts) < 0)
return error(_("Malformed options sheet: %s"),
git_path_opts_file());
return 0;
@@ -1054,7 +1054,7 @@ static int sequencer_continue(struct replay_opts *opts)
if (!file_exists(git_path_todo_file()))
return continue_single_pick();
- if (read_populate_opts(&opts) ||
+ if (read_populate_opts(opts) ||
read_populate_todo(&todo_list, opts))
return -1;
--
2.10.1.583.g721a9e0
^ permalink raw reply related
* Git context menu in Windows Exporer has a “git bash” option but it doesn't work
From: Stefan Monov @ 2016-10-21 12:23 UTC (permalink / raw)
To: git
Hi.
The default git distribution for windows contains, besides the CLI
tools, a shell integration, i.e. a context menu for Windows Explorer.
This context menu has a "Git bash" option which I suppose should open
a Git bash prompt cd'd to the current directory. But instead, the git
bash window opens and immediately closes, giving me no chance to even
see what it says inside it. Any fix?
Note: Opening Git Bash from the Windows Start Menu works fine, but if
I open it that way, then I need to manually cd to the needed dir.
TIA,
Stefan Monov
^ permalink raw reply
* [PATCH v5 04/27] sequencer: future-proof remove_sequencer_state()
From: Johannes Schindelin @ 2016-10-21 12:24 UTC (permalink / raw)
To: git; +Cc: Junio C Hamano, Jakub Narębski, Johannes Sixt, Ramsay Jones
In-Reply-To: <cover.1477052405.git.johannes.schindelin@gmx.de>
In a couple of commits, we will teach the sequencer to handle the
nitty gritty of the interactive rebase, which keeps its state in a
different directory.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
sequencer.c | 21 +++++++++++++--------
1 file changed, 13 insertions(+), 8 deletions(-)
diff --git a/sequencer.c b/sequencer.c
index c2fbf6f..8d272fb 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -27,6 +27,11 @@ static GIT_PATH_FUNC(git_path_todo_file, "sequencer/todo")
static GIT_PATH_FUNC(git_path_opts_file, "sequencer/opts")
static GIT_PATH_FUNC(git_path_head_file, "sequencer/head")
+static const char *get_dir(const struct replay_opts *opts)
+{
+ return git_path_seq_dir();
+}
+
static int is_rfc2822_line(const char *buf, int len)
{
int i;
@@ -109,13 +114,13 @@ static int has_conforming_footer(struct strbuf *sb, struct strbuf *sob,
return 1;
}
-static void remove_sequencer_state(void)
+static void remove_sequencer_state(const struct replay_opts *opts)
{
- struct strbuf seq_dir = STRBUF_INIT;
+ struct strbuf dir = STRBUF_INIT;
- strbuf_addstr(&seq_dir, git_path_seq_dir());
- remove_dir_recursively(&seq_dir, 0);
- strbuf_release(&seq_dir);
+ strbuf_addf(&dir, "%s", get_dir(opts));
+ remove_dir_recursively(&dir, 0);
+ strbuf_release(&dir);
}
static const char *action_name(const struct replay_opts *opts)
@@ -940,7 +945,7 @@ static int sequencer_rollback(struct replay_opts *opts)
}
if (reset_for_rollback(sha1))
goto fail;
- remove_sequencer_state();
+ remove_sequencer_state(opts);
strbuf_release(&buf);
return 0;
fail:
@@ -1034,7 +1039,7 @@ static int pick_commits(struct commit_list *todo_list, struct replay_opts *opts)
* Sequence of picks finished successfully; cleanup by
* removing the .git/sequencer directory
*/
- remove_sequencer_state();
+ remove_sequencer_state(opts);
return 0;
}
@@ -1095,7 +1100,7 @@ int sequencer_pick_revisions(struct replay_opts *opts)
* one that is being continued
*/
if (opts->subcommand == REPLAY_REMOVE_STATE) {
- remove_sequencer_state();
+ remove_sequencer_state(opts);
return 0;
}
if (opts->subcommand == REPLAY_ROLLBACK)
--
2.10.1.583.g721a9e0
^ permalink raw reply related
* [PATCH v5 01/27] sequencer: use static initializers for replay_opts
From: Johannes Schindelin @ 2016-10-21 12:23 UTC (permalink / raw)
To: git; +Cc: Junio C Hamano, Jakub Narębski, Johannes Sixt, Ramsay Jones
In-Reply-To: <cover.1477052405.git.johannes.schindelin@gmx.de>
This change is not completely faithful: instead of initializing all fields
to 0, we choose to initialize command and subcommand to -1 (instead of
defaulting to REPLAY_REVERT and REPLAY_NONE, respectively). Practically,
it makes no difference at all, but future-proofs the code to require
explicit assignments for both fields.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
builtin/revert.c | 6 ++----
sequencer.h | 1 +
2 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/builtin/revert.c b/builtin/revert.c
index 4e69380..7365559 100644
--- a/builtin/revert.c
+++ b/builtin/revert.c
@@ -178,10 +178,9 @@ static void parse_args(int argc, const char **argv, struct replay_opts *opts)
int cmd_revert(int argc, const char **argv, const char *prefix)
{
- struct replay_opts opts;
+ struct replay_opts opts = REPLAY_OPTS_INIT;
int res;
- memset(&opts, 0, sizeof(opts));
if (isatty(0))
opts.edit = 1;
opts.action = REPLAY_REVERT;
@@ -195,10 +194,9 @@ int cmd_revert(int argc, const char **argv, const char *prefix)
int cmd_cherry_pick(int argc, const char **argv, const char *prefix)
{
- struct replay_opts opts;
+ struct replay_opts opts = REPLAY_OPTS_INIT;
int res;
- memset(&opts, 0, sizeof(opts));
opts.action = REPLAY_PICK;
git_config(git_default_config, NULL);
parse_args(argc, argv, &opts);
diff --git a/sequencer.h b/sequencer.h
index 5ed5cb1..db425ad 100644
--- a/sequencer.h
+++ b/sequencer.h
@@ -47,6 +47,7 @@ struct replay_opts {
/* Only used by REPLAY_NONE */
struct rev_info *revs;
};
+#define REPLAY_OPTS_INIT { -1, -1 }
int sequencer_pick_revisions(struct replay_opts *opts);
--
2.10.1.583.g721a9e0
^ permalink raw reply related
* [PATCH v5 02/27] sequencer: use memoized sequencer directory path
From: Johannes Schindelin @ 2016-10-21 12:23 UTC (permalink / raw)
To: git; +Cc: Junio C Hamano, Jakub Narębski, Johannes Sixt, Ramsay Jones
In-Reply-To: <cover.1477052405.git.johannes.schindelin@gmx.de>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
builtin/commit.c | 2 +-
sequencer.c | 11 ++++++-----
sequencer.h | 5 +----
3 files changed, 8 insertions(+), 10 deletions(-)
diff --git a/builtin/commit.c b/builtin/commit.c
index 1cba3b7..9fddb19 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -183,7 +183,7 @@ static void determine_whence(struct wt_status *s)
whence = FROM_MERGE;
else if (file_exists(git_path_cherry_pick_head())) {
whence = FROM_CHERRY_PICK;
- if (file_exists(git_path(SEQ_DIR)))
+ if (file_exists(git_path_seq_dir()))
sequencer_in_use = 1;
}
else
diff --git a/sequencer.c b/sequencer.c
index eec8a60..cb16cbd 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -21,10 +21,11 @@
const char sign_off_header[] = "Signed-off-by: ";
static const char cherry_picked_prefix[] = "(cherry picked from commit ";
-static GIT_PATH_FUNC(git_path_todo_file, SEQ_TODO_FILE)
-static GIT_PATH_FUNC(git_path_opts_file, SEQ_OPTS_FILE)
-static GIT_PATH_FUNC(git_path_seq_dir, SEQ_DIR)
-static GIT_PATH_FUNC(git_path_head_file, SEQ_HEAD_FILE)
+GIT_PATH_FUNC(git_path_seq_dir, "sequencer")
+
+static GIT_PATH_FUNC(git_path_todo_file, "sequencer/todo")
+static GIT_PATH_FUNC(git_path_opts_file, "sequencer/opts")
+static GIT_PATH_FUNC(git_path_head_file, "sequencer/head")
static int is_rfc2822_line(const char *buf, int len)
{
@@ -112,7 +113,7 @@ static void remove_sequencer_state(void)
{
struct strbuf seq_dir = STRBUF_INIT;
- strbuf_addstr(&seq_dir, git_path(SEQ_DIR));
+ strbuf_addstr(&seq_dir, git_path_seq_dir());
remove_dir_recursively(&seq_dir, 0);
strbuf_release(&seq_dir);
}
diff --git a/sequencer.h b/sequencer.h
index db425ad..dd4d33a 100644
--- a/sequencer.h
+++ b/sequencer.h
@@ -1,10 +1,7 @@
#ifndef SEQUENCER_H
#define SEQUENCER_H
-#define SEQ_DIR "sequencer"
-#define SEQ_HEAD_FILE "sequencer/head"
-#define SEQ_TODO_FILE "sequencer/todo"
-#define SEQ_OPTS_FILE "sequencer/opts"
+const char *git_path_seq_dir(void);
#define APPEND_SIGNOFF_DEDUP (1u << 0)
--
2.10.1.583.g721a9e0
^ permalink raw reply related
* [PATCH v5 00/27] Prepare the sequencer for the upcoming rebase -i patches
From: Johannes Schindelin @ 2016-10-21 12:23 UTC (permalink / raw)
To: git; +Cc: Junio C Hamano, Jakub Narębski, Johannes Sixt, Ramsay Jones
In-Reply-To: <cover.1476450940.git.johannes.schindelin@gmx.de>
This patch series marks the '4' in the countdown to speed up rebase -i
by implementing large parts in C (read: there will be three more patch
series after that before the full benefit hits git.git: sequencer-i,
rebase--helper and rebase-i-extra). It is based on the `libify-sequencer`
patch series I submitted earlier.
The patches in this series merely prepare the sequencer code for the
next patch series that actually teaches the sequencer to run rebase -i's
commands.
The reason to split these two patch series is simple: to keep them at a
sensible size.
The two patch series after that are much smaller: a two-patch "series"
that switches rebase -i to use the sequencer (except with --root or
--preserve-merges), and a couple of patches to move several pretty
expensive script processing steps to C (think: autosquash).
The end game of this patch series is a git-rebase--helper that makes
rebase -i 5x faster on Windows (according to t/perf/p3404). Travis says
that even MacOSX and Linux benefit (4x and 3x, respectively).
I have been working on this since early February, whenever time allowed,
and it is time to put it into the users' hands. To that end, I already
integrated the whole shebang into Git for Windows 2.10.0 and 2.10.1
where it has been running without complaints (and some quite positive
feedback).
It would be *really* nice if we could get this patch series at least into
`next` soon, as it gets late and later for the rest of the patches to make
it into `master` in time for v2.11 (and it is not for lack of trying on my
end...).
Changes vs v4:
- clarified in a code comment that read_oneliner() is lenient when it
comes to multi-line files: it still reads the entire file, but strips
off only the final EOL (if any).
- rephrased a commit message to stop judging Junio's taste ;-)
- changed "strip LF" to "skip LF", as requested.
- rephrased a commit message to talk about pluggin memory leaks instead
of stating that the memory is now eventually released.
- dropped the "sequencer: do not try to commit when there were merge
conflicts" patch that appears to be no longer necessary.
- split and modified the commit refactoring write_message() according to
Junio's suggestions.
Johannes Schindelin (27):
sequencer: use static initializers for replay_opts
sequencer: use memoized sequencer directory path
sequencer: avoid unnecessary indirection
sequencer: future-proof remove_sequencer_state()
sequencer: plug memory leaks for the option values
sequencer: future-proof read_populate_todo()
sequencer: refactor the code to obtain a short commit name
sequencer: completely revamp the "todo" script parsing
sequencer: strip CR from the todo script
sequencer: avoid completely different messages for different actions
sequencer: get rid of the subcommand field
sequencer: remember the onelines when parsing the todo file
sequencer: prepare for rebase -i's commit functionality
sequencer: introduce a helper to read files written by scripts
sequencer: allow editing the commit message on a case-by-case basis
sequencer: support amending commits
sequencer: support cleaning up commit messages
sequencer: left-trim lines read from the script
sequencer: stop releasing the strbuf in write_message()
sequencer: roll back lock file if write_message() failed
sequencer: refactor write_message() to take a pointer/length
sequencer: teach write_message() to append an optional LF
sequencer: remove overzealous assumption in rebase -i mode
sequencer: mark action_name() for translation
sequencer: quote filenames in error messages
sequencer: start error messages consistently with lower case
sequencer: mark all error messages for translation
builtin/commit.c | 2 +-
builtin/revert.c | 46 ++-
sequencer.c | 680 ++++++++++++++++++++++++++++--------------
sequencer.h | 23 +-
t/t3501-revert-cherry-pick.sh | 2 +-
5 files changed, 492 insertions(+), 261 deletions(-)
base-commit: 659889482ac63411daea38b2c3d127842ea04e4d
Published-As: https://github.com/dscho/git/releases/tag/prepare-sequencer-v5
Fetch-It-Via: git fetch https://github.com/dscho/git prepare-sequencer-v5
Interdiff vs v4:
diff --git a/sequencer.c b/sequencer.c
index 1cf70f7..a61fe76 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -234,8 +234,8 @@ static void print_advice(int show_hint, struct replay_opts *opts)
}
}
-static int write_with_lock_file(const char *filename,
- const void *buf, size_t len, int append_eol)
+static int write_message(const void *buf, size_t len, const char *filename,
+ int append_eol)
{
static struct lock_file msg_file;
@@ -258,16 +258,12 @@ static int write_with_lock_file(const char *filename,
return 0;
}
-static int write_message(struct strbuf *msgbuf, const char *filename)
-{
- int res = write_with_lock_file(filename, msgbuf->buf, msgbuf->len, 0);
- strbuf_release(msgbuf);
- return res;
-}
-
/*
- * Reads a file that was presumably written by a shell script, i.e.
- * with an end-of-line marker that needs to be stripped.
+ * Reads a file that was presumably written by a shell script, i.e. with an
+ * end-of-line marker that needs to be stripped.
+ *
+ * Note that only the last end-of-line marker is stripped, consistent with the
+ * behavior of "$(cat path)" in a shell script.
*
* Returns 1 if the file was read, 0 if it could not be read or does not exist.
*/
@@ -762,12 +758,14 @@ static int do_pick_commit(enum todo_command command, struct commit *commit,
head, &msgbuf, opts);
if (res < 0)
return res;
- res |= write_message(&msgbuf, git_path_merge_msg());
+ res |= write_message(msgbuf.buf, msgbuf.len,
+ git_path_merge_msg(), 0);
} else {
struct commit_list *common = NULL;
struct commit_list *remotes = NULL;
- res = write_message(&msgbuf, git_path_merge_msg());
+ res = write_message(msgbuf.buf, msgbuf.len,
+ git_path_merge_msg(), 0);
commit_list_insert(base, &common);
commit_list_insert(next, &remotes);
@@ -777,6 +775,7 @@ static int do_pick_commit(enum todo_command command, struct commit *commit,
free_commit_list(common);
free_commit_list(remotes);
}
+ strbuf_release(&msgbuf);
/*
* If the merge was clean or if it failed due to conflict, we write
@@ -808,7 +807,7 @@ static int do_pick_commit(enum todo_command command, struct commit *commit,
res = allow;
goto leave;
}
- if (!res && !opts->no_commit)
+ if (!opts->no_commit)
res = run_git_commit(opts->edit ? NULL : git_path_merge_msg(),
opts, allow, opts->edit, 0, 0);
@@ -934,7 +933,7 @@ static int parse_insn_buffer(char *buf, struct todo_list *todo_list)
for (i = 1; *p; i++, p = next_p) {
char *eol = strchrnul(p, '\n');
- next_p = *eol ? eol + 1 /* strip LF */ : eol;
+ next_p = *eol ? eol + 1 /* skip LF */ : eol;
if (p != eol && eol[-1] == '\r')
eol--; /* strip Carriage Return */
--
2.10.1.583.g721a9e0
^ permalink raw reply
* Re: [BUG] fetch output is ugly in 'next'
From: Duy Nguyen @ 2016-10-21 12:11 UTC (permalink / raw)
To: Jeff King; +Cc: Git Mailing List
In-Reply-To: <20161021002654.qo6kcya4gocp73rs@sigill.intra.peff.net>
On Fri, Oct 21, 2016 at 7:26 AM, Jeff King <peff@peff.net> wrote:
> I recently started using lt/abbrev-auto via 'next'. This is the fetch
> output I saw today:
>
> $ git fetch
> remote: Counting objects: 332, done.
> remote: Compressing objects: 100% (237/237), done.
> remote: Total 332 (delta 182), reused 64 (delta 64), pack-reused 31
> Receiving objects: 100% (332/332), 351.53 KiB | 0 bytes/s, done.
> Resolving deltas: 100% (184/184), completed with 26 local objects.
> From git://github.com/gitster/git
> + fb65135d9c...16ab66ec97 jch -> origin/jch (forced update)
> fd47ae6a5b..98985c6911 jk/diff-submodule-diff-inline -> origin/jk/diff-submodule-diff-inline
> * [new branch] jk/no-looking-at-dotgit-outside-repo -> origin/jk/no-looking-at-dotgit-outside-repo
> + 3a8f853f16...1369f9b5ba jt/trailer-with-cruft -> origin/jt/trailer-with-cruft (forced update)
> * [new branch] pt/gitgui-updates -> origin/pt/gitgui-updates
> + 7594b34cbb...be8e40093b pu -> origin/pu (forced update)
> + 7b95cf9a4e...76e368c378 tg/add-chmod+x-fix -> origin/tg/add-chmod+x-fix (forced update)
> + c4cf1f93cf...221912514c va/i18n-perl-scripts -> origin/va/i18n-perl-scripts (forced update)
> * [new branch] yk/git-tag-remove-mention-of-old-layout-in-doc -> origin/yk/git-tag-remove-mention-of-old-layout-in-doc
>
> Yuck.
My eyes!
> I could maybe get over the wasted space due to the longer sha1s,
> but we clearly need to fix the alignment computation. I haven't dug on
> it at all; it's probably low-hanging fruit if somebody is interested.
Yeah.. replacing the 4 DEFAULT_ABBREV in fetch.c with something
sensible should do it.
--
Duy
^ permalink raw reply
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