* [PATCH 02/12] repack_without_ref(): remove temporary
From: mhagger @ 2011-10-19 21:44 UTC (permalink / raw)
To: Junio C Hamano
Cc: git, Jeff King, Drew Northup, Jakub Narebski, Heiko Voigt,
Johan Herland, Julian Phillips, Michael Haggerty
In-Reply-To: <1319060692-27216-1-git-send-email-mhagger@alum.mit.edu>
From: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
Trivial and boring.
refs.c | 7 ++-----
1 files changed, 2 insertions(+), 5 deletions(-)
diff --git a/refs.c b/refs.c
index f6752a4..431d3c6 100644
--- a/refs.c
+++ b/refs.c
@@ -1190,12 +1190,10 @@ static struct lock_file packlock;
static int repack_without_ref(const char *refname)
{
struct ref_array *packed;
- struct ref_entry *ref;
int fd, i;
packed = get_packed_refs(get_ref_cache(NULL));
- ref = search_ref_array(packed, refname);
- if (ref == NULL)
+ if (search_ref_array(packed, refname) == NULL)
return 0;
fd = hold_lock_file_for_update(&packlock, git_path("packed-refs"), 0);
if (fd < 0) {
@@ -1206,8 +1204,7 @@ static int repack_without_ref(const char *refname)
for (i = 0; i < packed->nr; i++) {
char line[PATH_MAX + 100];
int len;
-
- ref = packed->refs[i];
+ struct ref_entry *ref = packed->refs[i];
if (!strcmp(refname, ref->name))
continue;
--
1.7.7
^ permalink raw reply related
* [PATCH 01/12] Rename another local variable name -> refname
From: mhagger @ 2011-10-19 21:44 UTC (permalink / raw)
To: Junio C Hamano
Cc: git, Jeff King, Drew Northup, Jakub Narebski, Heiko Voigt,
Johan Herland, Julian Phillips, Michael Haggerty
In-Reply-To: <1319060692-27216-1-git-send-email-mhagger@alum.mit.edu>
From: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
I missed this one earlier. (There are probably others too. I hope
you don't feel that I'm morally obliged to find every single analogous
example...)
refs.c | 22 +++++++++++-----------
1 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/refs.c b/refs.c
index 7e6cea5..f6752a4 100644
--- a/refs.c
+++ b/refs.c
@@ -317,11 +317,11 @@ static void get_ref_dir(struct ref_cache *refs, const char *base,
if (dir) {
struct dirent *de;
int baselen = strlen(base);
- char *ref = xmalloc(baselen + 257);
+ char *refname = xmalloc(baselen + 257);
- memcpy(ref, base, baselen);
+ memcpy(refname, base, baselen);
if (baselen && base[baselen-1] != '/')
- ref[baselen++] = '/';
+ refname[baselen++] = '/';
while ((de = readdir(dir)) != NULL) {
unsigned char sha1[20];
@@ -337,31 +337,31 @@ static void get_ref_dir(struct ref_cache *refs, const char *base,
continue;
if (has_extension(de->d_name, ".lock"))
continue;
- memcpy(ref + baselen, de->d_name, namelen+1);
+ memcpy(refname + baselen, de->d_name, namelen+1);
refdir = *refs->name
- ? git_path_submodule(refs->name, "%s", ref)
- : git_path("%s", ref);
+ ? git_path_submodule(refs->name, "%s", refname)
+ : git_path("%s", refname);
if (stat(refdir, &st) < 0)
continue;
if (S_ISDIR(st.st_mode)) {
- get_ref_dir(refs, ref, array);
+ get_ref_dir(refs, refname, array);
continue;
}
if (*refs->name) {
hashclr(sha1);
flag = 0;
- if (resolve_gitlink_ref(refs->name, ref, sha1) < 0) {
+ if (resolve_gitlink_ref(refs->name, refname, sha1) < 0) {
hashclr(sha1);
flag |= REF_BROKEN;
}
} else
- if (!resolve_ref(ref, sha1, 1, &flag)) {
+ if (!resolve_ref(refname, sha1, 1, &flag)) {
hashclr(sha1);
flag |= REF_BROKEN;
}
- add_ref(ref, sha1, flag, array, NULL);
+ add_ref(refname, sha1, flag, array, NULL);
}
- free(ref);
+ free(refname);
closedir(dir);
}
}
--
1.7.7
^ permalink raw reply related
* [PATCH 03/12] parse_ref_line(): add a check that the refname is properly formatted
From: mhagger @ 2011-10-19 21:44 UTC (permalink / raw)
To: Junio C Hamano
Cc: git, Jeff King, Drew Northup, Jakub Narebski, Heiko Voigt,
Johan Herland, Julian Phillips, Michael Haggerty
In-Reply-To: <1319060692-27216-1-git-send-email-mhagger@alum.mit.edu>
From: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
refs.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/refs.c b/refs.c
index 431d3c6..752938c 100644
--- a/refs.c
+++ b/refs.c
@@ -51,6 +51,9 @@ static const char *parse_ref_line(char *line, unsigned char *sha1)
return NULL;
line[len] = 0;
+ if (check_refname_format(line, REFNAME_ALLOW_ONELEVEL))
+ return NULL;
+
return line;
}
--
1.7.7
^ permalink raw reply related
* [PATCH 05/12] add_ref(): take a (struct ref_entry *) parameter
From: mhagger @ 2011-10-19 21:44 UTC (permalink / raw)
To: Junio C Hamano
Cc: git, Jeff King, Drew Northup, Jakub Narebski, Heiko Voigt,
Johan Herland, Julian Phillips, Michael Haggerty
In-Reply-To: <1319060692-27216-1-git-send-email-mhagger@alum.mit.edu>
From: Michael Haggerty <mhagger@alum.mit.edu>
Take a pointer to the ref_entry to add to the array, rather than
creating the ref_entry within the function. This opens the way to
having multiple kinds of ref_entries.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
refs.c | 14 +++++---------
1 files changed, 5 insertions(+), 9 deletions(-)
diff --git a/refs.c b/refs.c
index acb098c..ae90993 100644
--- a/refs.c
+++ b/refs.c
@@ -75,13 +75,8 @@ static struct ref_entry *create_ref_entry(const char *refname,
}
/* Add a ref_entry to the end of the ref_array (unsorted). */
-static void add_ref(const char *refname, const unsigned char *sha1,
- int flag, struct ref_array *refs,
- struct ref_entry **new_ref)
+static void add_ref(struct ref_array *refs, struct ref_entry *ref)
{
- struct ref_entry *ref = create_ref_entry(refname, sha1, flag);
- if (new_ref)
- *new_ref = ref;
ALLOC_GROW(refs->refs, refs->nr + 1, refs->alloc);
refs->refs[refs->nr++] = ref;
}
@@ -266,7 +261,8 @@ static void read_packed_refs(FILE *f, struct ref_array *array)
refname = parse_ref_line(refline, sha1);
if (refname) {
- add_ref(refname, sha1, flag, array, &last);
+ last = create_ref_entry(refname, sha1, flag);
+ add_ref(array, last);
continue;
}
if (last &&
@@ -281,7 +277,7 @@ static void read_packed_refs(FILE *f, struct ref_array *array)
void add_extra_ref(const char *refname, const unsigned char *sha1, int flag)
{
- add_ref(refname, sha1, flag, &extra_refs, NULL);
+ add_ref(&extra_refs, create_ref_entry(refname, sha1, flag));
}
void clear_extra_refs(void)
@@ -368,7 +364,7 @@ static void get_ref_dir(struct ref_cache *refs, const char *base,
hashclr(sha1);
flag |= REF_BROKEN;
}
- add_ref(refname, sha1, flag, array, NULL);
+ add_ref(array, create_ref_entry(refname, sha1, flag));
}
free(refname);
closedir(dir);
--
1.7.7
^ permalink raw reply related
* [PATCH 08/12] do_for_each_ref_in_arrays(): new function
From: mhagger @ 2011-10-19 21:44 UTC (permalink / raw)
To: Junio C Hamano
Cc: git, Jeff King, Drew Northup, Jakub Narebski, Heiko Voigt,
Johan Herland, Julian Phillips, Michael Haggerty
In-Reply-To: <1319060692-27216-1-git-send-email-mhagger@alum.mit.edu>
From: Michael Haggerty <mhagger@alum.mit.edu>
Extract function do_for_each_ref_in_arrays() from do_for_each_ref().
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
refs.c | 71 +++++++++++++++++++++++++++++++++++++--------------------------
1 files changed, 42 insertions(+), 29 deletions(-)
diff --git a/refs.c b/refs.c
index 4e60edb..cd3acf8 100644
--- a/refs.c
+++ b/refs.c
@@ -709,45 +709,58 @@ static int do_for_each_ref_in_array(struct ref_array *array, int offset,
return 0;
}
-static int do_for_each_ref(const char *submodule, const char *base, each_ref_fn fn,
- int trim, int flags, void *cb_data)
+static int do_for_each_ref_in_arrays(struct ref_array *array1,
+ struct ref_array *array2,
+ const char *base, each_ref_fn fn, int trim,
+ int flags, void *cb_data)
{
- int retval = 0, p = 0, l = 0;
- struct ref_cache *refs = get_ref_cache(submodule);
- struct ref_array *packed = get_packed_refs(refs);
- struct ref_array *loose = get_loose_refs(refs);
-
- retval = do_for_each_ref_in_array(&extra_refs, 0,
- base, fn, trim, flags, cb_data);
- if (retval)
- goto end_each;
+ int retval;
+ int i1 = 0, i2 = 0;
- while (p < packed->nr && l < loose->nr) {
- struct ref_entry *entry;
- int cmp = strcmp(packed->refs[p]->name, loose->refs[l]->name);
- if (!cmp) {
- p++;
+ while (1) {
+ struct ref_entry *e1, *e2;
+ int cmp;
+ if (i1 == array1->nr) {
+ return do_for_each_ref_in_array(array2, i2,
+ base, fn, trim, flags, cb_data);
+ }
+ if (i2 == array2->nr) {
+ return do_for_each_ref_in_array(array1, i1,
+ base, fn, trim, flags, cb_data);
+ }
+ e1 = array1->refs[i1];
+ e2 = array2->refs[i2];
+ cmp = strcmp(e1->name, e2->name);
+ if (cmp == 0) {
+ /* Two refs with the same name; ignore the one from array1. */
+ i1++;
continue;
}
- if (cmp > 0) {
- entry = loose->refs[l++];
+ if (cmp < 0) {
+ retval = do_one_ref(base, fn, trim, flags, cb_data, e1);
+ i1++;
} else {
- entry = packed->refs[p++];
+ retval = do_one_ref(base, fn, trim, flags, cb_data, e2);
+ i2++;
}
- retval = do_one_ref(base, fn, trim, flags, cb_data, entry);
if (retval)
- goto end_each;
+ return retval;
}
+}
- if (l < loose->nr) {
- retval = do_for_each_ref_in_array(loose, l,
- base, fn, trim, flags, cb_data);
- } else {
- retval = do_for_each_ref_in_array(packed, p,
- base, fn, trim, flags, cb_data);
- }
+static int do_for_each_ref(const char *submodule, const char *base, each_ref_fn fn,
+ int trim, int flags, void *cb_data)
+{
+ int retval = 0;
+ struct ref_cache *refs = get_ref_cache(submodule);
+
+ retval = do_for_each_ref_in_array(&extra_refs, 0,
+ base, fn, trim, flags, cb_data);
+ if (!retval)
+ retval = do_for_each_ref_in_arrays(get_packed_refs(refs),
+ get_loose_refs(refs),
+ base, fn, trim, flags, cb_data);
-end_each:
current_ref = NULL;
return retval;
}
--
1.7.7
^ permalink raw reply related
* [PATCH 09/12] repack_without_ref(): reimplement using do_for_each_ref_in_array()
From: mhagger @ 2011-10-19 21:44 UTC (permalink / raw)
To: Junio C Hamano
Cc: git, Jeff King, Drew Northup, Jakub Narebski, Heiko Voigt,
Johan Herland, Julian Phillips, Michael Haggerty
In-Reply-To: <1319060692-27216-1-git-send-email-mhagger@alum.mit.edu>
From: Michael Haggerty <mhagger@alum.mit.edu>
It costs a bit of boilerplate, but it means that the function can be
ignorant of how cached refs are stored.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
refs.c | 46 ++++++++++++++++++++++++++++------------------
1 files changed, 28 insertions(+), 18 deletions(-)
diff --git a/refs.c b/refs.c
index cd3acf8..7c2bcab 100644
--- a/refs.c
+++ b/refs.c
@@ -1213,36 +1213,46 @@ struct ref_lock *lock_any_ref_for_update(const char *refname,
return lock_ref_sha1_basic(refname, old_sha1, flags, NULL);
}
+struct repack_without_ref_sb {
+ const char *refname;
+ int fd;
+};
+
+static int repack_without_ref_fn(const char *refname, const unsigned char *sha1,
+ int flags, void *cb_data)
+{
+ struct repack_without_ref_sb *data = cb_data;
+ char line[PATH_MAX + 100];
+ int len;
+
+ if (!strcmp(data->refname, refname))
+ return 0;
+ len = snprintf(line, sizeof(line), "%s %s\n",
+ sha1_to_hex(sha1), refname);
+ /* this should not happen but just being defensive */
+ if (len > sizeof(line))
+ die("too long a refname '%s'", refname);
+ write_or_die(data->fd, line, len);
+ return 0;
+}
+
static struct lock_file packlock;
static int repack_without_ref(const char *refname)
{
+ struct repack_without_ref_sb data;
struct ref_array *packed;
- int fd, i;
packed = get_packed_refs(get_ref_cache(NULL));
if (search_ref_array(packed, refname) == NULL)
return 0;
- fd = hold_lock_file_for_update(&packlock, git_path("packed-refs"), 0);
- if (fd < 0) {
+ data.refname = refname;
+ data.fd = hold_lock_file_for_update(&packlock, git_path("packed-refs"), 0);
+ if (data.fd < 0) {
unable_to_lock_error(git_path("packed-refs"), errno);
return error("cannot delete '%s' from packed refs", refname);
}
-
- for (i = 0; i < packed->nr; i++) {
- char line[PATH_MAX + 100];
- int len;
- struct ref_entry *ref = packed->refs[i];
-
- if (!strcmp(refname, ref->name))
- continue;
- len = snprintf(line, sizeof(line), "%s %s\n",
- sha1_to_hex(ref->sha1), ref->name);
- /* this should not happen but just being defensive */
- if (len > sizeof(line))
- die("too long a refname '%s'", ref->name);
- write_or_die(fd, line, len);
- }
+ do_for_each_ref_in_array(packed, 0, "", repack_without_ref_fn, 0, 0, &data);
return commit_lock_file(&packlock);
}
--
1.7.7
^ permalink raw reply related
* [PATCH 06/12] do_for_each_ref(): correctly terminate while processesing extra_refs
From: mhagger @ 2011-10-19 21:44 UTC (permalink / raw)
To: Junio C Hamano
Cc: git, Jeff King, Drew Northup, Jakub Narebski, Heiko Voigt,
Johan Herland, Julian Phillips, Michael Haggerty
In-Reply-To: <1319060692-27216-1-git-send-email-mhagger@alum.mit.edu>
From: Michael Haggerty <mhagger@alum.mit.edu>
If the user-supplied function returns a nonzero value while processing
extra_refs, terminate without processing the rest of the list.
This probably has no practical importance, but makes the handling of
extra_refs a little bit more consistent with the handling of other
refs.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
refs.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/refs.c b/refs.c
index ae90993..7aef76c 100644
--- a/refs.c
+++ b/refs.c
@@ -706,8 +706,11 @@ static int do_for_each_ref(const char *submodule, const char *base, each_ref_fn
struct ref_array *extra = &extra_refs;
- for (i = 0; i < extra->nr; i++)
+ for (i = 0; i < extra->nr; i++) {
retval = do_one_ref(base, fn, trim, flags, cb_data, extra->refs[i]);
+ if (retval)
+ goto end_each;
+ }
while (p < packed->nr && l < loose->nr) {
struct ref_entry *entry;
--
1.7.7
^ permalink raw reply related
* [PATCH 04/12] create_ref_entry(): extract function from add_ref()
From: mhagger @ 2011-10-19 21:44 UTC (permalink / raw)
To: Junio C Hamano
Cc: git, Jeff King, Drew Northup, Jakub Narebski, Heiko Voigt,
Johan Herland, Julian Phillips, Michael Haggerty
In-Reply-To: <1319060692-27216-1-git-send-email-mhagger@alum.mit.edu>
From: Michael Haggerty <mhagger@alum.mit.edu>
Separate the creation of the ref_entry from its addition to a ref_array.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
refs.c | 36 +++++++++++++++++++++---------------
1 files changed, 21 insertions(+), 15 deletions(-)
diff --git a/refs.c b/refs.c
index 752938c..acb098c 100644
--- a/refs.c
+++ b/refs.c
@@ -57,27 +57,33 @@ static const char *parse_ref_line(char *line, unsigned char *sha1)
return line;
}
-/* Add a ref_entry to the end of the ref_array (unsorted). */
-static void add_ref(const char *refname, const unsigned char *sha1,
- int flag, struct ref_array *refs,
- struct ref_entry **new_entry)
+static struct ref_entry *create_ref_entry(const char *refname,
+ const unsigned char *sha1, int flag)
{
int len;
- struct ref_entry *entry;
+ struct ref_entry *ref;
- /* Allocate it and add it in.. */
- len = strlen(refname) + 1;
- entry = xmalloc(sizeof(struct ref_entry) + len);
- hashcpy(entry->sha1, sha1);
- hashclr(entry->peeled);
if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL|REFNAME_DOT_COMPONENT))
die("Reference has invalid format: '%s'", refname);
- memcpy(entry->name, refname, len);
- entry->flag = flag;
- if (new_entry)
- *new_entry = entry;
+ len = strlen(refname) + 1;
+ ref = xmalloc(sizeof(struct ref_entry) + len);
+ hashcpy(ref->sha1, sha1);
+ hashclr(ref->peeled);
+ memcpy(ref->name, refname, len);
+ ref->flag = flag;
+ return ref;
+}
+
+/* Add a ref_entry to the end of the ref_array (unsorted). */
+static void add_ref(const char *refname, const unsigned char *sha1,
+ int flag, struct ref_array *refs,
+ struct ref_entry **new_ref)
+{
+ struct ref_entry *ref = create_ref_entry(refname, sha1, flag);
+ if (new_ref)
+ *new_ref = ref;
ALLOC_GROW(refs->refs, refs->nr + 1, refs->alloc);
- refs->refs[refs->nr++] = entry;
+ refs->refs[refs->nr++] = ref;
}
static int ref_entry_cmp(const void *a, const void *b)
--
1.7.7
^ permalink raw reply related
* [PATCH 07/12] do_for_each_ref_in_array(): new function
From: mhagger @ 2011-10-19 21:44 UTC (permalink / raw)
To: Junio C Hamano
Cc: git, Jeff King, Drew Northup, Jakub Narebski, Heiko Voigt,
Johan Herland, Julian Phillips, Michael Haggerty
In-Reply-To: <1319060692-27216-1-git-send-email-mhagger@alum.mit.edu>
From: Michael Haggerty <mhagger@alum.mit.edu>
Extract function do_for_each_ref_in_array() from do_for_each_ref().
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
refs.c | 39 +++++++++++++++++++++++----------------
1 files changed, 23 insertions(+), 16 deletions(-)
diff --git a/refs.c b/refs.c
index 7aef76c..4e60edb 100644
--- a/refs.c
+++ b/refs.c
@@ -696,21 +696,31 @@ fallback:
return -1;
}
+static int do_for_each_ref_in_array(struct ref_array *array, int offset,
+ const char *base,
+ each_ref_fn fn, int trim, int flags, void *cb_data)
+{
+ int i;
+ for (i = offset; i < array->nr; i++) {
+ int retval = do_one_ref(base, fn, trim, flags, cb_data, array->refs[i]);
+ if (retval)
+ return retval;
+ }
+ return 0;
+}
+
static int do_for_each_ref(const char *submodule, const char *base, each_ref_fn fn,
int trim, int flags, void *cb_data)
{
- int retval = 0, i, p = 0, l = 0;
+ int retval = 0, p = 0, l = 0;
struct ref_cache *refs = get_ref_cache(submodule);
struct ref_array *packed = get_packed_refs(refs);
struct ref_array *loose = get_loose_refs(refs);
- struct ref_array *extra = &extra_refs;
-
- for (i = 0; i < extra->nr; i++) {
- retval = do_one_ref(base, fn, trim, flags, cb_data, extra->refs[i]);
- if (retval)
- goto end_each;
- }
+ retval = do_for_each_ref_in_array(&extra_refs, 0,
+ base, fn, trim, flags, cb_data);
+ if (retval)
+ goto end_each;
while (p < packed->nr && l < loose->nr) {
struct ref_entry *entry;
@@ -730,14 +740,11 @@ static int do_for_each_ref(const char *submodule, const char *base, each_ref_fn
}
if (l < loose->nr) {
- p = l;
- packed = loose;
- }
-
- for (; p < packed->nr; p++) {
- retval = do_one_ref(base, fn, trim, flags, cb_data, packed->refs[p]);
- if (retval)
- goto end_each;
+ retval = do_for_each_ref_in_array(loose, l,
+ base, fn, trim, flags, cb_data);
+ } else {
+ retval = do_for_each_ref_in_array(packed, p,
+ base, fn, trim, flags, cb_data);
}
end_each:
--
1.7.7
^ permalink raw reply related
* Re: Compiling on Windows
From: Philip Oakley @ 2011-10-19 21:46 UTC (permalink / raw)
To: Andrew Ardill, Vincent van Ravesteijn; +Cc: Git MsysGit, git
In-Reply-To: <4E9E811C.10205@lyx.org>
From: "Vincent van Ravesteijn" <vfr@lyx.org>
> Op 18-10-2011 6:08, Andrew Ardill schreef:
>> Hi list, I have been searching for details on what is required to
>> compile on Windows, but haven't found anything conclusive. Perhaps
>> there is something on the wiki, but unfortunately it is down at the
>> moment.
>>
>> Can anyone point me in the right direction? I would like to be able to
>> compile and test topic branches, and perhaps even do some dev work on
>> my windows machine.
>
> I once wrote a little step-by-step tutorial on how to compile the native
> Windows Git with MSVC (Express).
>
> http://blog.vfrconsultancy.nl/#post0
The blog post filled in a few gaps in the Msysgit README instructions about
where to place the various downloads described.
>
> Be aware that git runs without apparent problems, but that all
> functionality written in shell scripts can't be used.
>
> HTH,
>
> Vincent
> --
Many thanks, it saved me asking.
Philip
^ permalink raw reply
* Re: [RFC 04/13] add_ref(): move the call of check_refname_format() to callers
From: Junio C Hamano @ 2011-10-19 21:49 UTC (permalink / raw)
To: mhagger
Cc: git, Jeff King, cmn, A Large Angry SCM, Daniel Barkalow,
Sverre Rabbelier
In-Reply-To: <1319057716-28094-5-git-send-email-mhagger@alum.mit.edu>
mhagger@alum.mit.edu writes:
> I'm still not clear on how extra_refs are used. Are they generated
> from local refs or are they generated from remote refs? If the
> latter, then it is probably irresponsible not to do *some* sanity
> checking in add_extra_ref() to prevent any chance of refnames like
> "../../../etc/passwd".
No, add_extra_ref() already tells us what their values are, these are
never used to actually read from filesystem. Their refname field has
almost no value other than for debugging and we probably shouldn't even
insist on uniqueness among extra refs or for that matter collision with
the real refs. As I mentioned in an earlier message, their only raison
d'être is to be found by for_each_ref() that feeds revision machinery with
up to which commits we know we have complete histories for. A sample call
chain looks like this:
- cmd_clone()
- setup_reference()
- add_one_reference()
- add_extra_ref()
adds refs in other repositories we borrow from as "extra"
- transport_fetch_refs()
- fetch_refs_via_pack()
- fetch_pack()
- do_fetch_pack()
- find_common()
- for_each_ref(rev_list_insert_ref)
That way find_common() thinks histories leading to these extra refs are
already complete on our end (i.e. we have all the necessary objects), and
by subtracting that from what we are asking from the other end, we can
reduce the amount of history that needs to be transferred.
^ permalink raw reply
* [PATCH 12/12] is_refname_available(): reimplement using do_for_each_ref_in_array()
From: mhagger @ 2011-10-19 21:44 UTC (permalink / raw)
To: Junio C Hamano
Cc: git, Jeff King, Drew Northup, Jakub Narebski, Heiko Voigt,
Johan Herland, Julian Phillips, Michael Haggerty
In-Reply-To: <1319060692-27216-1-git-send-email-mhagger@alum.mit.edu>
From: Michael Haggerty <mhagger@alum.mit.edu>
This implementation will survive upcoming changes to the ref_array
data structure.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
refs.c | 44 ++++++++++++++++++++++++++++++++------------
1 files changed, 32 insertions(+), 12 deletions(-)
diff --git a/refs.c b/refs.c
index 4bc6041..c41d995 100644
--- a/refs.c
+++ b/refs.c
@@ -1102,6 +1102,25 @@ static int names_conflict(const char *refname1, const char *refname2)
|| (*refname1 == '/' && *refname2 == '\0');
}
+struct name_conflict_cb {
+ const char *refname;
+ const char *oldrefname;
+ const char *conflicting_refname;
+};
+
+static int name_conflict_fn(const char *existingrefname, const unsigned char *sha1,
+ int flags, void *cb_data)
+{
+ struct name_conflict_cb *data = (struct name_conflict_cb *)cb_data;
+ if (data->oldrefname && !strcmp(data->oldrefname, existingrefname))
+ return 0;
+ if (names_conflict(data->refname, existingrefname)) {
+ data->conflicting_refname = existingrefname;
+ return 1;
+ }
+ return 0;
+}
+
/*
* Return true iff a reference named refname could be created without
* conflicting with the name of an existing reference. If oldrefname
@@ -1112,18 +1131,19 @@ static int names_conflict(const char *refname1, const char *refname2)
static int is_refname_available(const char *refname, const char *oldrefname,
struct ref_array *array)
{
- int i;
- for (i = 0; i < array->nr; i++ ) {
- struct ref_entry *entry = array->refs[i];
- if (oldrefname && !strcmp(oldrefname, entry->name))
- continue;
- if (names_conflict(refname, entry->name)) {
- error("'%s' exists; cannot create '%s'",
- entry->name, refname);
- return 0;
- }
- }
- return 1;
+ struct name_conflict_cb data;
+ data.refname = refname;
+ data.oldrefname = oldrefname;
+ data.conflicting_refname = NULL;
+
+ if (do_for_each_ref_in_array(array, 0, "", name_conflict_fn,
+ 0, DO_FOR_EACH_INCLUDE_BROKEN,
+ &data)) {
+ error("'%s' exists; cannot create '%s'",
+ data.conflicting_refname, refname);
+ return 0;
+ }
+ return 1;
}
static struct ref_lock *lock_ref_sha1_basic(const char *refname,
--
1.7.7
^ permalink raw reply related
* [PATCH 11/12] names_conflict(): simplify implementation
From: mhagger @ 2011-10-19 21:44 UTC (permalink / raw)
To: Junio C Hamano
Cc: git, Jeff King, Drew Northup, Jakub Narebski, Heiko Voigt,
Johan Herland, Julian Phillips, Michael Haggerty
In-Reply-To: <1319060692-27216-1-git-send-email-mhagger@alum.mit.edu>
From: Michael Haggerty <mhagger@alum.mit.edu>
Save a bunch of lines of code and a couple of strlen() calls.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
refs.c | 17 ++++-------------
1 files changed, 4 insertions(+), 13 deletions(-)
diff --git a/refs.c b/refs.c
index ada691b..4bc6041 100644
--- a/refs.c
+++ b/refs.c
@@ -1096,19 +1096,10 @@ static int remove_empty_directories(const char *file)
*/
static int names_conflict(const char *refname1, const char *refname2)
{
- int len1 = strlen(refname1);
- int len2 = strlen(refname2);
- int cmplen;
- const char *lead;
-
- if (len1 < len2) {
- cmplen = len1;
- lead = refname2;
- } else {
- cmplen = len2;
- lead = refname1;
- }
- return !strncmp(refname1, refname2, cmplen) && lead[cmplen] == '/';
+ for (; *refname1 && *refname1 == *refname2; refname1++, refname2++)
+ ;
+ return (*refname1 == '\0' && *refname2 == '/')
+ || (*refname1 == '/' && *refname2 == '\0');
}
/*
--
1.7.7
^ permalink raw reply related
* [PATCH 10/12] names_conflict(): new function, extracted from is_refname_available()
From: mhagger @ 2011-10-19 21:44 UTC (permalink / raw)
To: Junio C Hamano
Cc: git, Jeff King, Drew Northup, Jakub Narebski, Heiko Voigt,
Johan Herland, Julian Phillips, Michael Haggerty
In-Reply-To: <1319060692-27216-1-git-send-email-mhagger@alum.mit.edu>
From: Michael Haggerty <mhagger@alum.mit.edu>
This costs an extra strlen() in the loop, but even that small price
will be clawed back in the next patch.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
refs.c | 43 +++++++++++++++++++++++++++++++------------
1 files changed, 31 insertions(+), 12 deletions(-)
diff --git a/refs.c b/refs.c
index 7c2bcab..ada691b 100644
--- a/refs.c
+++ b/refs.c
@@ -1088,6 +1088,30 @@ static int remove_empty_directories(const char *file)
}
/*
+ * Return true iff refname1 and refname2 conflict with each other.
+ * 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".
+ */
+static int names_conflict(const char *refname1, const char *refname2)
+{
+ int len1 = strlen(refname1);
+ int len2 = strlen(refname2);
+ int cmplen;
+ const char *lead;
+
+ if (len1 < len2) {
+ cmplen = len1;
+ lead = refname2;
+ } else {
+ cmplen = len2;
+ lead = refname1;
+ }
+ return !strncmp(refname1, refname2, cmplen) && lead[cmplen] == '/';
+}
+
+/*
* Return true iff a reference named refname could be created without
* conflicting with the name of an existing reference. If oldrefname
* is non-NULL, ignore potential conflicts with oldrefname (e.g.,
@@ -1097,20 +1121,15 @@ static int remove_empty_directories(const char *file)
static int is_refname_available(const char *refname, const char *oldrefname,
struct ref_array *array)
{
- int i, namlen = strlen(refname); /* e.g. 'foo/bar' */
+ int i;
for (i = 0; i < array->nr; i++ ) {
struct ref_entry *entry = array->refs[i];
- /* entry->name could be 'foo' or 'foo/bar/baz' */
- if (!oldrefname || strcmp(oldrefname, entry->name)) {
- int len = strlen(entry->name);
- int cmplen = (namlen < len) ? namlen : len;
- const char *lead = (namlen < len) ? entry->name : refname;
- if (!strncmp(refname, entry->name, cmplen) &&
- lead[cmplen] == '/') {
- error("'%s' exists; cannot create '%s'",
- entry->name, refname);
- return 0;
- }
+ if (oldrefname && !strcmp(oldrefname, entry->name))
+ continue;
+ if (names_conflict(refname, entry->name)) {
+ error("'%s' exists; cannot create '%s'",
+ entry->name, refname);
+ return 0;
}
}
return 1;
--
1.7.7
^ permalink raw reply related
* Re: [RFC 09/13] new_branch(): verify that new branch name is a valid full refname
From: Junio C Hamano @ 2011-10-19 21:52 UTC (permalink / raw)
To: mhagger
Cc: Junio C Hamano, git, Jeff King, cmn, A Large Angry SCM,
Daniel Barkalow, Sverre Rabbelier
In-Reply-To: <1319057716-28094-10-git-send-email-mhagger@alum.mit.edu>
mhagger@alum.mit.edu writes:
> From: Michael Haggerty <mhagger@alum.mit.edu>
>
>
> Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
> ---
>
> Is it possible to omit the REFNAME_ALLOW_ONELEVEL option from this
> call?
I _think_ it takes an unadorned branch name, so the most prudent would be
to check the result of prefixing "refs/heads/" to *name with REFNAME_FULL.
> fast-import.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/fast-import.c b/fast-import.c
> index 8d8ea3c..51cf898 100644
> --- a/fast-import.c
> +++ b/fast-import.c
> @@ -722,7 +722,7 @@ static struct branch *new_branch(const char *name)
>
> if (b)
> die("Invalid attempt to create duplicate branch: %s", name);
> - if (check_refname_format(name, REFNAME_ALLOW_ONELEVEL))
> + if (check_refname_format(name, REFNAME_FULL|REFNAME_ALLOW_ONELEVEL))
> die("Branch name doesn't conform to GIT standards: %s", name);
>
> b = pool_calloc(1, sizeof(struct branch));
^ permalink raw reply
* What's cooking in git.git (Oct 2011, #07; Wed, 19)
From: Junio C Hamano @ 2011-10-19 21:57 UTC (permalink / raw)
To: git
Here are the topics that have been cooking. Commits prefixed with '-' are
only in 'pu' (proposed updates) while commits prefixed with '+' are in 'next'.
The fifth batch of topics started graduating to the master branch. It is
probably a good point to stop taking new topics and start switching our
focus to fixing bugs in the topics already in 'master'.
Here are the repositories that have my integration branches:
With maint, master, next, pu, todo, html and man:
git://git.kernel.org/pub/scm/git/git.git
git://repo.or.cz/alt-git.git
https://code.google.com/p/git-core/
https://github.com/git/git
With only maint, master, html and man:
git://git.sourceforge.jp/gitroot/git-core/git.git
git://git-core.git.sourceforge.net/gitroot/git-core/git-core
With all the topics and integration branches but not todo, html or man:
https://github.com/gitster/git
--------------------------------------------------
[New Topics]
* jc/match-refs-clarify (2011-09-12) 2 commits
- rename "match_refs()" to "match_push_refs()"
- send-pack: typofix error message
* jn/libperl-git-config (2011-10-18) 1 commit
- libperl-git: refactor Git::config_*
* ss/inet-ntop (2011-10-18) 1 commit
- inet_ntop.c: Work around GCC 4.6's detection of uninitialized variables
--------------------------------------------------
[Graduated to "master"]
* bk/submodule-in-recursive-merge (2011-10-13) 2 commits
(merged to 'next' on 2011-10-15 at e02205c)
+ submodule: Search for merges only at end of recursive merge
+ submodule: Demonstrate known breakage during recursive merge
Brad helped resurrecting good bits earlier tangled in the stalled topic
hv/submodule-merge-search by mistake.
* cb/httpd-test-fix-port (2011-10-17) 1 commit
(merged to 'next' on 2011-10-17 at 84fb7e6)
+ use test number as port number
* jm/maint-apply-detects-corrupt-patch-header (2011-10-12) 1 commit
(merged to 'next' on 2011-10-12 at 80d9503)
+ fix "git apply --index ..." not to deref NULL
* jn/gitweb-manpages (2011-10-16) 5 commits
(merged to 'next' on 2011-10-16 at 6555a07)
+ gitweb: Add gitweb manpages to 'gitweb' package in git.spec
+ Documentation: Add gitweb config variables to git-config(1)
+ Documentation: Link to gitweb(1) and gitweb.conf(5) in other manpages
+ gitweb: Add gitweb(1) manpage for gitweb itself
+ gitweb: Add gitweb.conf(5) manpage for gitweb configuration files
* js/log-show-children (2011-10-04) 1 commit
(merged to 'next' on 2011-10-06 at de8f6f2)
+ log --children
* js/maint-no-cherry-pick-head-after-punted (2011-10-06) 2 commits
+ cherry-pick: do not give irrelevant advice when cherry-pick punted
+ revert.c: defer writing CHERRY_PICK_HEAD till it is safe to do so
(this branch is used by js/no-cherry-pick-head-after-punted.)
Will merge to 'maint' later.
* js/merge-edit-option (2011-10-12) 1 commit
(merged to 'next' on 2011-10-12 at db28da3)
+ Teach merge the '[-e|--edit]' option
* js/no-cherry-pick-head-after-punted (2011-10-06) 1 commit
(merged to 'next' on 2011-10-10 at acb29ee)
+ Merge branch 'js/maint-no-cherry-pick-head-after-punted' into js/no-cherry-pick-head-after-punted
(this branch uses js/maint-no-cherry-pick-head-after-punted.)
* md/smtp-tls-hello-again (2011-10-15) 1 commit
(merged to 'next' on 2011-10-16 at 3e27de4)
+ send-email: Honour SMTP domain when using TLS
* pt/mingw-misc-fixes (2011-10-15) 7 commits
(merged to 'next' on 2011-10-16 at 2dc0b55)
+ t9901: fix line-ending dependency on windows
+ mingw: ensure sockets are initialized before calling gethostname
+ mergetools: use the correct tool for Beyond Compare 3 on Windows
+ t9300: do not run --cat-blob-fd related tests on MinGW
+ git-svn: On MSYS, escape and quote SVN_SSH also if set by the user
+ t9001: do not fail only due to CR/LF issues
+ t1020: disable the pwd test on MinGW
* rs/diff-whole-function (2011-10-10) 2 commits
(merged to 'next' on 2011-10-11 at 6196752)
+ diff: add option to show whole functions as context
+ xdiff: factor out get_func_line()
* rs/pickaxe (2011-10-07) 7 commits
(merged to 'next' on 2011-10-11 at 27d02b2)
+ pickaxe: factor out pickaxe
+ pickaxe: give diff_grep the same signature as has_changes
+ pickaxe: pass diff_options to contains and has_changes
+ pickaxe: factor out has_changes
+ pickaxe: plug regex/kws leak
+ pickaxe: plug regex leak
+ pickaxe: plug diff filespec leak with empty needle
--------------------------------------------------
[Stalled]
* hv/submodule-merge-search (2011-10-13) 4 commits
- submodule.c: make two functions static
- allow multiple calls to submodule merge search for the same path
- push: Don't push a repository with unpushed submodules
- push: teach --recurse-submodules the on-demand option
What the topic aims to achieve may make sense, but the implementation
looked somewhat suboptimal.
The fix-up at the tip queued on fg/submodule-auto-push topic has been
moved to this topic.
* sr/transport-helper-fix-rfc (2011-07-19) 2 commits
- t5800: point out that deleting branches does not work
- t5800: document inability to push new branch with old content
Perhaps 281eee4 (revision: keep track of the end-user input from the
command line, 2011-08-25) would help.
* rr/revert-cherry-pick (2011-10-12) 7 commits
- revert: further simplify parsing of a line in insn sheet
- revert: Simplify passing command-line arguments around
- revert: Allow mixed pick and revert instructions
- revert: Make commit descriptions in insn sheet optional
- revert: Fix buffer overflow in insn sheet parser
- revert: Simplify getting commit subject
- revert: Free memory after get_message call
Probably needs a little bit more polish, e.g. squashing the tip fixup into
an earlier one in the series.
* jc/lookup-object-hash (2011-08-11) 6 commits
- object hash: replace linear probing with 4-way cuckoo hashing
- object hash: we know the table size is a power of two
- object hash: next_size() helper for readability
- pack-objects --count-only
- object.c: remove duplicated code for object hashing
- object.c: code movement for readability
I do not think there is anything fundamentally wrong with this series, but
the risk of breakage far outweighs observed performance gain in one
particular workload.
--------------------------------------------------
[Cooking]
* jc/check-ref-format-fixup (2011-10-12) 2 commits
(merged to 'next' on 2011-10-15 at 8e89bc5)
+ Restrict ref-like names immediately below $GIT_DIR
+ refs.c: move dwim_ref()/dwim_log() from sha1_name.c
An attempt to fix-up unfortunate side effect of mh/check-ref-format-3
topic. "git show -s config" is never meant to refer to $GIT_DIR/config
and treat it as a file that records an object name. But tightening the
rule for reading side means we would need to tighten the rule for the
writing side, too, which turned out to be rather nasty fallout that
needs to be sorted out before the next release.
* pw/p4-update (2011-10-17) 6 commits
(merged to 'next' on 2011-10-17 at f69f6cc)
+ git-p4: handle files with shell metacharacters
+ git-p4: keyword flattening fixes
+ git-p4: stop ignoring apple filetype
+ git-p4: recognize all p4 filetypes
+ git-p4: handle utf16 filetype properly
+ git-p4 tests: refactor and cleanup
Will merge to 'master' in the fifth wave.
* cn/doc-config-bare-subsection (2011-10-16) 1 commit
(merged to 'next' on 2011-10-17 at a6412d4)
+ Documentation: update [section.subsection] to reflect what git does
Will merge to 'master' in the fifth wave.
* cb/daemon-permission-errors (2011-10-17) 2 commits
- daemon: report permission denied error to clients
- daemon: add tests
(this branch uses jk/daemon-msgs.)
The tip commit might be loosening things a bit too much.
Will keep in 'pu' until hearing a convincing argument for the patch.
* jc/verbose-checkout (2011-10-16) 2 commits
- checkout -v: give full status output after switching branches
- checkout: move the local changes report to the end
This is just to leave a record that the reason why we do not do this not
because we are incapable of coding this, but because it is not a good idea
to do this. I suspect people who are new to git that might think they need
it would soon realize the don't.
Will keep in 'pu' as a showcase for a while and then will drop.
* kk/gitweb-side-by-side-diff (2011-10-17) 2 commits
- gitweb: add a feature to show side-by-side diff
- gitweb: change format_diff_line() to remove leading SP from $diff_class
Fun.
Will keep in 'pu' until the planned re-roll comes.
* mh/ref-api-2 (2011-10-17) 14 commits
(merged to 'next' on 2011-10-19 at cc89f0e)
+ resolve_gitlink_ref_recursive(): change to work with struct ref_cache
+ Pass a (ref_cache *) to the resolve_gitlink_*() helper functions
+ resolve_gitlink_ref(): improve docstring
+ get_ref_dir(): change signature
+ refs: change signatures of get_packed_refs() and get_loose_refs()
+ is_dup_ref(): extract function from sort_ref_array()
+ add_ref(): add docstring
+ parse_ref_line(): add docstring
+ is_refname_available(): remove the "quiet" argument
+ clear_ref_array(): rename from free_ref_array()
+ refs: rename parameters result -> sha1
+ refs: rename "refname" variables
+ struct ref_entry: document name member
+ cache.h: add comments for git_path() and git_path_submodule()
(this branch uses mh/ref-api.)
* po/insn-editor (2011-10-17) 1 commit
(merged to 'next' on 2011-10-19 at cbf5e0b)
+ "rebase -i": support special-purpose editor to edit insn sheet
* dm/pack-objects-update (2011-10-18) 4 commits
- pack-objects: don't traverse objects unnecessarily
- pack-objects: rewrite add_descendants_to_write_order() iteratively
- pack-objects: use unsigned int for counter and offset values
- pack-objects: mark add_to_write_order() as inline
* jk/git-tricks (2011-10-18) 3 commits
- completion: match ctags symbol names in grep patterns
- contrib: add git-jump script
- contrib: add diff highlight script
* jc/make-tags (2011-10-18) 1 commit
- Makefile: ask "ls-files" to list source files if available
* jc/signed-commit (2011-10-18) 3 commits
- log: --show-signature
- commit: teach --gpg-sign option
- Split GPG interface into its own helper library
This is to replace the earlier "signed push" experiments. "verify-tag"
equivalent needs to be written before this can proceed. I suspect that
teaching "verify-tag" to notice and also handle signed commits would be
the easiest, but "git tag --verify $commit" might look slightly funny
from the UI POV. I dunno.
* mh/ref-api (2011-10-16) 7 commits
(merged to 'next' on 2011-10-17 at 219000f)
+ clear_ref_cache(): inline function
+ write_ref_sha1(): only invalidate the loose ref cache
+ clear_ref_cache(): extract two new functions
+ clear_ref_cache(): rename parameter
+ invalidate_ref_cache(): expose this function in the refs API
+ invalidate_ref_cache(): take the submodule as parameter
+ invalidate_ref_cache(): rename function from invalidate_cached_refs()
(this branch is used by mh/ref-api-2.)
Will merge to 'master' in the sixth wave.
* sg/complete-refs (2011-10-15) 10 commits
- completion: remove broken dead code from __git_heads() and __git_tags()
- completion: fast initial completion for config 'remote.*.fetch' value
- completion: improve ls-remote output filtering in __git_refs_remotes()
- completion: query only refs/heads/ in __git_refs_remotes()
- completion: support full refs from remote repositories
- completion: improve ls-remote output filtering in __git_refs()
- completion: make refs completion consistent for local and remote repos
- completion: optimize refs completion
- completion: document __gitcomp()
- Merge branches 'tm/completion-push-set-upstream', 'tm/completion-commit-fixup-squash' and 'sg/completion' into HEAD
Rerolled.
Will keep in 'pu' until an Ack or two from people who have worked on the
completion in the past comes.
* jc/unseekable-bundle (2011-10-13) 2 commits
(merged to 'next' on 2011-10-19 at 2978ee0)
+ bundle: add parse_bundle_header() helper function
+ bundle: allowing to read from an unseekable fd
I am not entirely happy with the first patch but it is not so bad either.
* jk/daemon-msgs (2011-10-15) 1 commit
(merged to 'next' on 2011-10-15 at 415cf53)
+ daemon: give friendlier error messages to clients
(this branch is used by cb/daemon-permission-errors.)
Will merge to 'master' in the fifth wave.
* jk/maint-pack-objects-compete-with-delete (2011-10-14) 2 commits
(merged to 'next' on 2011-10-15 at 49479e4)
+ downgrade "packfile cannot be accessed" errors to warnings
+ pack-objects: protect against disappearing packs
Will merge to 'master' in the fifth wave.
* cn/fetch-prune (2011-10-15) 5 commits
(merged to 'next' on 2011-10-16 at 02a449e)
+ fetch: treat --tags like refs/tags/*:refs/tags/* when pruning
+ fetch: honor the user-provided refspecs when pruning refs
+ remote: separate out the remote_find_tracking logic into query_refspecs
+ t5510: add tests for fetch --prune
+ fetch: free all the additional refspecs
Will merge to 'master' in the sixth wave.
* sc/difftool-skip (2011-10-14) 2 commits
(merged to 'next' on 2011-10-14 at b91c581)
+ t7800: avoid arithmetic expansion notation
(merged to 'next' on 2011-10-11 at 38d7e84)
+ git-difftool: allow skipping file by typing 'n' at prompt
Will merge to 'master' in the fifth wave.
* jc/maint-remove-renamed-ref (2011-10-12) 1 commit
(merged to 'next' on 2011-10-12 at 819c3e4)
+ branch -m/-M: remove undocumented RENAMED-REF
Will merge to 'master' in the sixth wave.
* ph/transport-with-gitfile (2011-10-11) 5 commits
(merged to 'next' on 2011-10-12 at 6d58417)
+ Fix is_gitfile() for files too small or larger than PATH_MAX to be a gitfile
(merged to 'next' on 2011-10-06 at 891b8b6)
+ Add test showing git-fetch groks gitfiles
+ Teach transport about the gitfile mechanism
+ Learn to handle gitfiles in enter_repo
+ enter_repo: do not modify input
Will merge to 'master' in the fifth wave.
* jc/request-pull-show-head-4 (2011-10-15) 11 commits
(merged to 'next' on 2011-10-15 at 7e340ff)
+ fmt-merge-msg.c: Fix an "dubious one-bit signed bitfield" sparse error
(merged to 'next' on 2011-10-10 at 092175e)
+ environment.c: Fix an sparse "symbol not declared" warning
+ builtin/log.c: Fix an "Using plain integer as NULL pointer" warning
(merged to 'next' on 2011-10-07 at fcaeca0)
+ fmt-merge-msg: use branch.$name.description
(merged to 'next' on 2011-10-06 at fa5e0fe)
+ request-pull: use the branch description
+ request-pull: state what commit to expect
+ request-pull: modernize style
+ branch: teach --edit-description option
+ format-patch: use branch description in cover letter
+ branch: add read_branch_desc() helper function
+ Merge branch 'bk/ancestry-path' into jc/branch-desc
Will merge to 'master' in the sixth wave.
--------------------------------------------------
[Discarded]
* jk/http-auth-keyring (2011-10-12) 19 commits
. http_init: accept separate URL parameter
. credential-cache: don't cache items without context
. check_expirations: don't copy over same element
. t0300: add missing EOF terminator for <<
. credential-store: use a better storage format
. t0300: make alternate username tests more robust
. t0300: make askpass tests a little more robust
. credential-cache: fix expiration calculation corner cases
. docs: minor tweaks to credentials API
. credentials: make credential_fill_gently() static
. credentials: add "getpass" helper
. credentials: add "store" helper
. credentials: add "cache" helper
. docs: end-user documentation for the credential subsystem
. http: use hostname in credential description
. allow the user to configure credential helpers
. look for credentials in config before prompting
. http: use credential API to get passwords
. introduce credentials API
(this branch is used by js/cred-macos-x-keychain-2.)
Discarded without prejudice to allow design level discussions to continue.
Expecting a re-roll based on jk/http-auth
* js/cred-macos-x-keychain-2 (2011-10-12) 1 commit
. contrib: add a pair of credential helpers for Mac OS X's keychain
(this branch uses jk/http-auth-keyring.)
Discarded without prejudice to allow design level discussions to continue.
Expecting a re-roll based on jk/http-auth
^ permalink raw reply
* Re: [RFC 04/13] add_ref(): move the call of check_refname_format() to callers
From: Michael Haggerty @ 2011-10-19 21:59 UTC (permalink / raw)
To: Junio C Hamano
Cc: git, Jeff King, cmn, A Large Angry SCM, Daniel Barkalow,
Sverre Rabbelier
In-Reply-To: <7vsjmobqim.fsf@alter.siamese.dyndns.org>
On 10/19/2011 11:49 PM, Junio C Hamano wrote:
> mhagger@alum.mit.edu writes:
>> I'm still not clear on how extra_refs are used. Are they generated
>> from local refs or are they generated from remote refs? If the
>> latter, then it is probably irresponsible not to do *some* sanity
>> checking in add_extra_ref() to prevent any chance of refnames like
>> "../../../etc/passwd".
>
> No, add_extra_ref() already tells us what their values are, these are
> never used to actually read from filesystem. Their refname field has
> almost no value other than for debugging and we probably shouldn't even
> insist on uniqueness among extra refs or for that matter collision with
> the real refs. [...]
Thanks for the explanation. I'm inspired to separate them a little bit
more from "real" refs because they are such a special case. For
example, maybe it would make sense to add a function
for_each_extra_ref() to avoid having to mix them with real refs in the
iteration. OTOH not important AFAICS.
Michael
--
Michael Haggerty
mhagger@alum.mit.edu
http://softwareswirl.blogspot.com/
^ permalink raw reply
* Re: [IGNORETHIS/PATCH] Choosing the sha1 prefix of your commits
From: Jonathan Nieder @ 2011-10-19 22:09 UTC (permalink / raw)
To: Ævar Arnfjörð Bjarmason; +Cc: Git Mailing List
In-Reply-To: <CACBZZX5PqYa0uWiGgs952rk2cy+QRCU95kF63qzSi3fKK-YrCQ@mail.gmail.com>
Ævar Arnfjörð Bjarmason wrote:
> Someone asked me if having a "lulz" header wouldn't
> break things, but since we introduced the "encoding" header a while
> back clients have learned to ignore unknown headers, so it doesn't.
>
> Which is why we can discuss e.g. adding GPG headers without worrying
> about breaking everything.
Just for the record (and I think you understood this already): it is
not quite so simple. Clients are allowed to assume that no "unknown"
header lines will appear before any of the known fields. A future git
version could even assume that, say, a
length-of-remainder-of-header
field appears before any lines after encoding and the GPG stuff.
So it would definitely be frowned upon to add new lines to that part
of the commit object without at least discussing it on this list.
Jeff mentioned one way to get your lulz without violating that
constraint. ;-)
http://thread.gmane.org/gmane.comp.version-control.git/138848/focus=138921
^ permalink raw reply
* Re: [PATCH 08/12] do_for_each_ref_in_arrays(): new function
From: Junio C Hamano @ 2011-10-19 22:39 UTC (permalink / raw)
To: mhagger
Cc: git, Jeff King, Drew Northup, Jakub Narebski, Heiko Voigt,
Johan Herland, Julian Phillips
In-Reply-To: <1319060692-27216-9-git-send-email-mhagger@alum.mit.edu>
Is this necessary? IOW, is the helper function usable in any context
other than merge-iterate loose and packed refs?
^ permalink raw reply
* Re: [msysGit] Re: Compiling on Windows
From: Johannes Schindelin @ 2011-10-19 23:17 UTC (permalink / raw)
To: Philip Oakley; +Cc: Andrew Ardill, Vincent van Ravesteijn, Git MsysGit, git
In-Reply-To: <2015B7F2CEAE4B449EA4EF744F9B8FD9@PhilipOakley>
Hi,
On Wed, 19 Oct 2011, Philip Oakley wrote:
> From: "Vincent van Ravesteijn" <vfr@lyx.org>
> > Op 18-10-2011 6:08, Andrew Ardill schreef:
> > > Hi list, I have been searching for details on what is required to
> > > compile on Windows, but haven't found anything conclusive. Perhaps
> > > there is something on the wiki, but unfortunately it is down at the
> > > moment.
The quickest way to get Git for Windows compiled is to download & run
msysGit-netinstall from http://msysgit.googlecode.com/.
Ciao,
Johannes
^ permalink raw reply
* [PATCH v4 0/5] Signed-commit
From: Junio C Hamano @ 2011-10-20 0:36 UTC (permalink / raw)
To: git
In-Reply-To: <1318983645-18897-1-git-send-email-gitster@pobox.com>
The fourth iteration.
- The first patch refactors where the current code invokes gpg for
signing and verification of tags;
- The second patch introduces signed commit objects (unchanged);
- The third patch teaches "git log/show" to show the signature (adjusted
to the updated "gpg output capture" API, with colors);
- The fourth patch refactors helper bits to test GPG related features
out of existing "tag -s" && "tag --verify" test script (new); and
- The fifth patch adds tests for "commit [--amend] -S", "merge -S",
and "show --show-signature" (new).
I think the internal API to drive "gpg" in this iteration is good to go.
The verification side has been updated to allow the callers to capture
output from GPG in a strbuf, so that they can pretty-print it in a format
more suitable in their context, rather than just spewing it out to the
standard error stream.
Junio C Hamano (5):
Split GPG interface into its own helper library
commit: teach --gpg-sign option
log: --show-signature
t7004: extract generic "GPG testing" bits
test "commit -S" and "log --show-signature"
Makefile | 2 +
builtin/commit-tree.c | 24 +++++++-
builtin/commit.c | 12 +++-
builtin/merge.c | 16 +++++-
builtin/tag.c | 76 ++-----------------------
builtin/verify-tag.c | 35 ++----------
commit.c | 74 ++++++++++++++++++++++++-
commit.h | 5 +-
gpg-interface.c | 138 ++++++++++++++++++++++++++++++++++++++++++++++
gpg-interface.h | 10 +++
log-tree.c | 39 +++++++++++++
notes-cache.c | 2 +-
notes-merge.c | 2 +-
revision.c | 2 +
revision.h | 1 +
t/lib-gpg.sh | 29 ++++++++++
t/lib-gpg/pubring.gpg | Bin 0 -> 1164 bytes
t/lib-gpg/random_seed | Bin 0 -> 600 bytes
t/lib-gpg/secring.gpg | Bin 0 -> 1237 bytes
t/lib-gpg/trustdb.gpg | Bin 0 -> 1280 bytes
t/t7004-tag.sh | 29 +---------
t/t7004/pubring.gpg | Bin 1164 -> 0 bytes
t/t7004/random_seed | Bin 600 -> 0 bytes
t/t7004/secring.gpg | Bin 1237 -> 0 bytes
t/t7004/trustdb.gpg | Bin 1280 -> 0 bytes
t/t7510-signed-commit.sh | 60 ++++++++++++++++++++
tag.c | 5 ++
27 files changed, 422 insertions(+), 139 deletions(-)
create mode 100644 gpg-interface.c
create mode 100644 gpg-interface.h
create mode 100644 t/lib-gpg.sh
create mode 100644 t/lib-gpg/pubring.gpg
create mode 100644 t/lib-gpg/random_seed
create mode 100644 t/lib-gpg/secring.gpg
create mode 100644 t/lib-gpg/trustdb.gpg
delete mode 100644 t/t7004/pubring.gpg
delete mode 100644 t/t7004/random_seed
delete mode 100644 t/t7004/secring.gpg
delete mode 100644 t/t7004/trustdb.gpg
create mode 100755 t/t7510-signed-commit.sh
--
1.7.7.498.g3f2e50
^ permalink raw reply
* [PATCH v4 1/5] Split GPG interface into its own helper library
From: Junio C Hamano @ 2011-10-20 0:36 UTC (permalink / raw)
To: git
In-Reply-To: <1319071023-31919-1-git-send-email-gitster@pobox.com>
This mostly moves existing code from builtin/tag.c (for signing)
and builtin/verify-tag.c (for verifying) to a new gpg-interface.c
file to provide a more generic library interface.
- sign_buffer() takes a payload strbuf, a signature strbuf, and a signing
key, runs "gpg" to produce a detached signature for the payload, and
appends it to the signature strbuf. The contents of a signed tag that
concatenates the payload and the detached signature can be produced by
giving the same strbuf as payload and signature strbuf.
- verify_signed_buffer() takes a payload and a detached signature as
<ptr, len> pairs, and runs "gpg --verify" to see if the payload matches
the signature. It can optionally capture the output from GPG to allow
the callers to pretty-print it in a way more suitable for their
contexts.
"verify-tag" (aka "tag -v") used to save the whole tag contents as if it
is a detached signature, and fed gpg the payload part of the tag. It
relied on gpg to fail when the given tag is not signed but just is
annotated. The updated run_gpg_verify() function detects the lack of
detached signature in the input, and errors out without bothering "gpg".
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
Makefile | 2 +
builtin/tag.c | 76 ++-------------------------
builtin/verify-tag.c | 35 ++-----------
gpg-interface.c | 138 ++++++++++++++++++++++++++++++++++++++++++++++++++
gpg-interface.h | 10 ++++
tag.c | 5 ++
6 files changed, 166 insertions(+), 100 deletions(-)
create mode 100644 gpg-interface.c
create mode 100644 gpg-interface.h
diff --git a/Makefile b/Makefile
index 8d6d451..2183223 100644
--- a/Makefile
+++ b/Makefile
@@ -530,6 +530,7 @@ LIB_H += exec_cmd.h
LIB_H += fsck.h
LIB_H += gettext.h
LIB_H += git-compat-util.h
+LIB_H += gpg-interface.h
LIB_H += graph.h
LIB_H += grep.h
LIB_H += hash.h
@@ -620,6 +621,7 @@ LIB_OBJS += entry.o
LIB_OBJS += environment.o
LIB_OBJS += exec_cmd.o
LIB_OBJS += fsck.o
+LIB_OBJS += gpg-interface.o
LIB_OBJS += graph.o
LIB_OBJS += grep.o
LIB_OBJS += hash.o
diff --git a/builtin/tag.c b/builtin/tag.c
index 667515e..fb0d4a1 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c
@@ -14,6 +14,7 @@
#include "parse-options.h"
#include "diff.h"
#include "revision.h"
+#include "gpg-interface.h"
static const char * const git_tag_usage[] = {
"git tag [-a|-s|-u <key-id>] [-f] [-m <msg>|-F <file>] <tagname> [<head>]",
@@ -23,8 +24,6 @@ static const char * const git_tag_usage[] = {
NULL
};
-static char signingkey[1000];
-
struct tag_filter {
const char **patterns;
int lines;
@@ -208,60 +207,7 @@ static int verify_tag(const char *name, const char *ref,
static int do_sign(struct strbuf *buffer)
{
- struct child_process gpg;
- const char *args[4];
- char *bracket;
- int len;
- int i, j;
-
- if (!*signingkey) {
- if (strlcpy(signingkey, git_committer_info(IDENT_ERROR_ON_NO_NAME),
- sizeof(signingkey)) > sizeof(signingkey) - 1)
- return error(_("committer info too long."));
- bracket = strchr(signingkey, '>');
- if (bracket)
- bracket[1] = '\0';
- }
-
- /* When the username signingkey is bad, program could be terminated
- * because gpg exits without reading and then write gets SIGPIPE. */
- signal(SIGPIPE, SIG_IGN);
-
- memset(&gpg, 0, sizeof(gpg));
- gpg.argv = args;
- gpg.in = -1;
- gpg.out = -1;
- args[0] = "gpg";
- args[1] = "-bsau";
- args[2] = signingkey;
- args[3] = NULL;
-
- if (start_command(&gpg))
- return error(_("could not run gpg."));
-
- if (write_in_full(gpg.in, buffer->buf, buffer->len) != buffer->len) {
- close(gpg.in);
- close(gpg.out);
- finish_command(&gpg);
- return error(_("gpg did not accept the tag data"));
- }
- close(gpg.in);
- len = strbuf_read(buffer, gpg.out, 1024);
- close(gpg.out);
-
- if (finish_command(&gpg) || !len || len < 0)
- return error(_("gpg failed to sign the tag"));
-
- /* Strip CR from the line endings, in case we are on Windows. */
- for (i = j = 0; i < buffer->len; i++)
- if (buffer->buf[i] != '\r') {
- if (i != j)
- buffer->buf[j] = buffer->buf[i];
- j++;
- }
- strbuf_setlen(buffer, j);
-
- return 0;
+ return sign_buffer(buffer, buffer, get_signing_key());
}
static const char tag_template[] =
@@ -270,21 +216,11 @@ static const char tag_template[] =
"# Write a tag message\n"
"#\n");
-static void set_signingkey(const char *value)
-{
- if (strlcpy(signingkey, value, sizeof(signingkey)) >= sizeof(signingkey))
- die(_("signing key value too long (%.10s...)"), value);
-}
-
static int git_tag_config(const char *var, const char *value, void *cb)
{
- if (!strcmp(var, "user.signingkey")) {
- if (!value)
- return config_error_nonbool(var);
- set_signingkey(value);
- return 0;
- }
-
+ int status = git_gpg_config(var, value, cb);
+ if (status)
+ return status;
return git_default_config(var, value, cb);
}
@@ -463,7 +399,7 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
if (keyid) {
sign = 1;
- set_signingkey(keyid);
+ set_signing_key(keyid);
}
if (sign)
annotate = 1;
diff --git a/builtin/verify-tag.c b/builtin/verify-tag.c
index 3134766..28c2174 100644
--- a/builtin/verify-tag.c
+++ b/builtin/verify-tag.c
@@ -11,6 +11,7 @@
#include "run-command.h"
#include <signal.h>
#include "parse-options.h"
+#include "gpg-interface.h"
static const char * const verify_tag_usage[] = {
"git verify-tag [-v|--verbose] <tag>...",
@@ -19,42 +20,16 @@ static const char * const verify_tag_usage[] = {
static int run_gpg_verify(const char *buf, unsigned long size, int verbose)
{
- struct child_process gpg;
- const char *args_gpg[] = {"gpg", "--verify", "FILE", "-", NULL};
- char path[PATH_MAX];
- size_t len;
- int fd, ret;
+ int len;
- fd = git_mkstemp(path, PATH_MAX, ".git_vtag_tmpXXXXXX");
- if (fd < 0)
- return error("could not create temporary file '%s': %s",
- path, strerror(errno));
- if (write_in_full(fd, buf, size) < 0)
- return error("failed writing temporary file '%s': %s",
- path, strerror(errno));
- close(fd);
-
- /* find the length without signature */
len = parse_signature(buf, size);
if (verbose)
write_in_full(1, buf, len);
- memset(&gpg, 0, sizeof(gpg));
- gpg.argv = args_gpg;
- gpg.in = -1;
- args_gpg[2] = path;
- if (start_command(&gpg)) {
- unlink(path);
- return error("could not run gpg.");
- }
-
- write_in_full(gpg.in, buf, len);
- close(gpg.in);
- ret = finish_command(&gpg);
+ if (size == len)
+ return error("no signature found");
- unlink_or_warn(path);
-
- return ret;
+ return verify_signed_buffer(buf, len, buf + len, size - len, NULL);
}
static int verify_tag(const char *name, int verbose)
diff --git a/gpg-interface.c b/gpg-interface.c
new file mode 100644
index 0000000..ff232c8
--- /dev/null
+++ b/gpg-interface.c
@@ -0,0 +1,138 @@
+#include "cache.h"
+#include "run-command.h"
+#include "strbuf.h"
+#include "gpg-interface.h"
+#include "sigchain.h"
+
+static char *configured_signing_key;
+
+void set_signing_key(const char *key)
+{
+ free(configured_signing_key);
+ configured_signing_key = xstrdup(key);
+}
+
+int git_gpg_config(const char *var, const char *value, void *cb)
+{
+ if (!strcmp(var, "user.signingkey")) {
+ if (!value)
+ return config_error_nonbool(var);
+ set_signing_key(value);
+ }
+ return 0;
+}
+
+const char *get_signing_key(void)
+{
+ if (configured_signing_key)
+ return configured_signing_key;
+ return git_committer_info(IDENT_ERROR_ON_NO_NAME|IDENT_NO_DATE);
+}
+
+/*
+ * Create a detached signature for the contents of "buffer" and append
+ * it after "signature"; "buffer" and "signature" can be the same
+ * strbuf instance, which would cause the detached signature appended
+ * at the end.
+ */
+int sign_buffer(struct strbuf *buffer, struct strbuf *signature, const char *signing_key)
+{
+ struct child_process gpg;
+ const char *args[4];
+ ssize_t len;
+ size_t i, j, bottom;
+
+ memset(&gpg, 0, sizeof(gpg));
+ gpg.argv = args;
+ gpg.in = -1;
+ gpg.out = -1;
+ args[0] = "gpg";
+ args[1] = "-bsau";
+ args[2] = signing_key;
+ args[3] = NULL;
+
+ if (start_command(&gpg))
+ return error(_("could not run gpg."));
+
+ /*
+ * When the username signingkey is bad, program could be terminated
+ * because gpg exits without reading and then write gets SIGPIPE.
+ */
+ sigchain_push(SIGPIPE, SIG_IGN);
+
+ if (write_in_full(gpg.in, buffer->buf, buffer->len) != buffer->len) {
+ close(gpg.in);
+ close(gpg.out);
+ finish_command(&gpg);
+ return error(_("gpg did not accept the data"));
+ }
+ close(gpg.in);
+
+ bottom = signature->len;
+ len = strbuf_read(signature, gpg.out, 1024);
+ close(gpg.out);
+
+ sigchain_pop(SIGPIPE);
+
+ if (finish_command(&gpg) || !len || len < 0)
+ return error(_("gpg failed to sign the data"));
+
+ /* Strip CR from the line endings, in case we are on Windows. */
+ for (i = j = bottom; i < signature->len; i++)
+ if (signature->buf[i] != '\r') {
+ if (i != j)
+ signature->buf[j] = signature->buf[i];
+ j++;
+ }
+ strbuf_setlen(signature, j);
+
+ return 0;
+}
+
+/*
+ * Run "gpg" to see if the payload matches the detached signature.
+ * gpg_output_to tells where the output from "gpg" should go:
+ * < 0: /dev/null
+ * = 0: standard error of the calling process
+ * > 0: the specified file descriptor
+ */
+int verify_signed_buffer(const char *payload, size_t payload_size,
+ const char *signature, size_t signature_size,
+ struct strbuf *gpg_output)
+{
+ struct child_process gpg;
+ const char *args_gpg[] = {"gpg", "--verify", "FILE", "-", NULL};
+ char path[PATH_MAX];
+ int fd, ret;
+
+ fd = git_mkstemp(path, PATH_MAX, ".git_vtag_tmpXXXXXX");
+ if (fd < 0)
+ return error("could not create temporary file '%s': %s",
+ path, strerror(errno));
+ if (write_in_full(fd, signature, signature_size) < 0)
+ return error("failed writing detached signature to '%s': %s",
+ path, strerror(errno));
+ close(fd);
+
+ memset(&gpg, 0, sizeof(gpg));
+ gpg.argv = args_gpg;
+ gpg.in = -1;
+ if (gpg_output)
+ gpg.err = -1;
+ args_gpg[2] = path;
+ if (start_command(&gpg)) {
+ unlink(path);
+ return error("could not run gpg.");
+ }
+
+ write_in_full(gpg.in, payload, payload_size);
+ close(gpg.in);
+
+ if (gpg_output)
+ strbuf_read(gpg_output, gpg.err, 0);
+ ret = finish_command(&gpg);
+
+ unlink_or_warn(path);
+
+ return ret;
+}
diff --git a/gpg-interface.h b/gpg-interface.h
new file mode 100644
index 0000000..b9c3608
--- /dev/null
+++ b/gpg-interface.h
@@ -0,0 +1,10 @@
+#ifndef GPG_INTERFACE_H
+#define GPG_INTERFACE_H
+
+extern int sign_buffer(struct strbuf *buffer, struct strbuf *signature, const char *signing_key);
+extern int verify_signed_buffer(const char *payload, size_t payload_size, const char *signature, size_t signature_size, struct strbuf *gpg_output);
+extern int git_gpg_config(const char *, const char *, void *);
+extern void set_signing_key(const char *);
+extern const char *get_signing_key(void);
+
+#endif
diff --git a/tag.c b/tag.c
index 7d38cc0..3aa186d 100644
--- a/tag.c
+++ b/tag.c
@@ -139,6 +139,11 @@ int parse_tag(struct tag *item)
return ret;
}
+/*
+ * Look at a signed tag object, and return the offset where
+ * the embedded detached signature begins, or the end of the
+ * data when there is no such signature.
+ */
size_t parse_signature(const char *buf, unsigned long size)
{
char *eol;
--
1.7.7.498.g3f2e50
^ permalink raw reply related
* [PATCH v4 5/5] test "commit -S" and "log --show-signature"
From: Junio C Hamano @ 2011-10-20 0:37 UTC (permalink / raw)
To: git
In-Reply-To: <1319071023-31919-1-git-send-email-gitster@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
t/t7510-signed-commit.sh | 60 ++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 60 insertions(+), 0 deletions(-)
create mode 100755 t/t7510-signed-commit.sh
diff --git a/t/t7510-signed-commit.sh b/t/t7510-signed-commit.sh
new file mode 100755
index 0000000..5c7475d
--- /dev/null
+++ b/t/t7510-signed-commit.sh
@@ -0,0 +1,60 @@
+#!/bin/sh
+
+test_description='signed commit tests'
+. ./test-lib.sh
+. "$TEST_DIRECTORY/lib-gpg.sh"
+
+test_expect_success GPG 'create signed commits' '
+ echo 1 >file && git add file &&
+ test_tick && git commit -S -m initial &&
+ git tag initial &&
+ git branch side &&
+
+ echo 2 >file && test_tick && git commit -a -S -m second &&
+ git tag second &&
+
+ git checkout side &&
+ echo 3 >elif && git add elif &&
+ test_tick && git commit -m "third on side" &&
+
+ git checkout master &&
+ test_tick && git merge -S side &&
+ git tag merge &&
+
+ echo 4 >file && test_tick && git commit -a -m "fourth unsigned" &&
+ git tag fourth-unsigned &&
+
+ test_tick && git commit --amend -S -m "fourth signed"
+'
+
+test_expect_success GPG 'show signatures' '
+ (
+ for commit in initial second merge master
+ do
+ git show --pretty=short --show-signature $commit >actual &&
+ grep "Good signature from" actual || exit 1
+ ! grep "BAD signature from" actual || exit 1
+ echo $commit OK
+ done
+ ) &&
+ (
+ for commit in merge^2 fourth-unsigned
+ do
+ git show --pretty=short --show-signature $commit >actual &&
+ grep "Good signature from" actual && exit 1
+ ! grep "BAD signature from" actual || exit 1
+ echo $commit OK
+ done
+ )
+'
+
+test_expect_success GPG 'detect fudged signature' '
+ git cat-file commit master >raw &&
+ sed -e "s/fourth signed/4th forged/" raw >forged &&
+ git hash-object -w -t commit forged >forged.commit &&
+ git show --pretty=short --show-signature $(cat forged.commit) >actual &&
+ grep "BAD signature from" actual &&
+ ! grep "Good signature from" actual
+'
+
+test_done
--
1.7.7.498.g3f2e50
^ permalink raw reply related
* [PATCH v4 4/5] t7004: extract generic "GPG testing" bits
From: Junio C Hamano @ 2011-10-20 0:37 UTC (permalink / raw)
To: git
In-Reply-To: <1319071023-31919-1-git-send-email-gitster@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
t/lib-gpg.sh | 29 +++++++++++++++++++++++++++++
t/lib-gpg/pubring.gpg | Bin 0 -> 1164 bytes
t/lib-gpg/random_seed | Bin 0 -> 600 bytes
t/lib-gpg/secring.gpg | Bin 0 -> 1237 bytes
t/lib-gpg/trustdb.gpg | Bin 0 -> 1280 bytes
t/t7004-tag.sh | 29 +----------------------------
t/t7004/pubring.gpg | Bin 1164 -> 0 bytes
t/t7004/random_seed | Bin 600 -> 0 bytes
t/t7004/secring.gpg | Bin 1237 -> 0 bytes
t/t7004/trustdb.gpg | Bin 1280 -> 0 bytes
10 files changed, 30 insertions(+), 28 deletions(-)
create mode 100644 t/lib-gpg.sh
create mode 100644 t/lib-gpg/pubring.gpg
create mode 100644 t/lib-gpg/random_seed
create mode 100644 t/lib-gpg/secring.gpg
create mode 100644 t/lib-gpg/trustdb.gpg
delete mode 100644 t/t7004/pubring.gpg
delete mode 100644 t/t7004/random_seed
delete mode 100644 t/t7004/secring.gpg
delete mode 100644 t/t7004/trustdb.gpg
diff --git a/t/lib-gpg.sh b/t/lib-gpg.sh
new file mode 100644
index 0000000..eb09027
--- /dev/null
+++ b/t/lib-gpg.sh
@@ -0,0 +1,29 @@
+#!/bin/sh
+
+# Check if gpg is available
+gpg --version >/dev/null 2>/dev/null
+if [ $? -eq 127 ]; then
+ say "# gpg not found - skipping tag signing and verification tests"
+else
+ # As said here: http://www.gnupg.org/documentation/faqs.html#q6.19
+ # the gpg version 1.0.6 didn't parse trust packets correctly, so for
+ # that version, creation of signed tags using the generated key fails.
+ case "$(gpg --version)" in
+ 'gpg (GnuPG) 1.0.6'*)
+ say "Skipping signed tag tests, because a bug in 1.0.6 version"
+ ;;
+ *)
+ test_set_prereq GPG
+ ;;
+ esac
+fi
+
+# key generation info: gpg --homedir t/t7004 --gen-key
+# Type DSA and Elgamal, size 2048 bits, no expiration date.
+# Name and email: C O Mitter <committer@example.com>
+# No password given, to enable non-interactive operation.
+
+cp -R "$TEST_DIRECTORY"/lib-gpg ./gpghome
+chmod 0700 gpghome
+GNUPGHOME="$(pwd)/gpghome"
+export GNUPGHOME
diff --git a/t/lib-gpg/pubring.gpg b/t/lib-gpg/pubring.gpg
new file mode 100644
index 0000000000000000000000000000000000000000..83855fa4e1c6c37afe550c17afa1e7971042ded5
GIT binary patch
literal 1164
zcmV;71ateD0ipy(XUi!O1OT%L_{gO;4KKDfwF;#WWYZ2?*>Ph_j9y>uobJf#jXEbw
zQUOEXs+@;X*)1kyN*7VwW}f-GD3>Vlu2F6j{T^Kt%(kMo(W3C}W^X)NL|0VdGIzc`
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z&Yh%2Hbu9IX>#(R8S&@jVI!K^K7AI$=A+*-qJ>-J^fdR_m5GZao*%P{nee=O$Eb$s
zes#O%4Z_4OAZW}8Ey8%%w->rA>z!nf)&NPikkr&pkRlB>=W+x68fwevWl9Ys2R3m2
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z5C{Oyxp_ZR>*yfS@@M%BVY6{X4EXUYpbiBs(uw7knRB|b)>)=o+wQ%-v34o&a|fQ;
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eLjau^#pu5ba=n|GS94<zkje^zT1YFf0ssTLm?$>@
literal 0
HcmV?d00001
diff --git a/t/lib-gpg/random_seed b/t/lib-gpg/random_seed
new file mode 100644
index 0000000000000000000000000000000000000000..8fed1339ed0a744e5663f4a5e6b6ac9bae3d8524
GIT binary patch
literal 600
zcmV-e0;m1=h9nBV>1C6QsKJEiEJaD@Q3F8s5u<$E+<2(By)JAZSxviTsXg(wKC+O%
zzvV{Z>W3*k?r7~pgmmkbw8-x{Am!eeN)z?cwIHcT2jqgiA(SXo<iO=E?cY80`p#w8
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zzoSAbU>CoCKWKX;!3@L_U=aFUm!M<>ILG}$`bfnadAkLQbI-upV7Qwf^OE&N45Pz<
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ziHh{2&>;CQO7;>{$DN33_Ef}g+;b<2hIF^p(Y>^riLBb*Y2Xw>F8)jp49&oLKJOic
z+V{Lt!_`eKGhyk5Edie{-^#n!TFlsfux*QBRZEh^4SVePPmb{BvF|>sKd2cYg@vKp
mVI8jcB1(k(tlt^Kr<{EMs>|b*d70nyVMQcc%xEnE(#Uq3d^-35
literal 0
HcmV?d00001
diff --git a/t/lib-gpg/secring.gpg b/t/lib-gpg/secring.gpg
new file mode 100644
index 0000000000000000000000000000000000000000..d831cd9eb3eee613d3c0e1a71093ae01ea7347e3
GIT binary patch
literal 1237
zcmV;`1S<QL0lNf7XUi!O1OT%L_{gO;4KKDfwF;#WWYZ2?*>Ph_j9y>uobJf#jXEbw
zQUOEXs+@;X*)1kyN*7VwW}f-GD3>Vlu2F6j{T^Kt%(kMo(W3C}W^X)NL|0VdGIzc`
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literal 0
HcmV?d00001
diff --git a/t/lib-gpg/trustdb.gpg b/t/lib-gpg/trustdb.gpg
new file mode 100644
index 0000000000000000000000000000000000000000..abace962b8bf84be688a6f27e4ebd0ee7052f210
GIT binary patch
literal 1280
zcmZQfFGy!*W@Ke#U|?`dKkWykumMIcY@%4iM%7^n6rj+M4;MLzzlOX&pwTnxkD-}P
zc^HbXN0fL!SIq1?>env3?W^3`d(OOU5YNaX{KU(k^<0;M@87ONv)_6ZxD={-=<kYO
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literal 0
HcmV?d00001
diff --git a/t/t7004-tag.sh b/t/t7004-tag.sh
index 097ce2b..ded5c86 100755
--- a/t/t7004-tag.sh
+++ b/t/t7004-tag.sh
@@ -8,6 +8,7 @@ test_description='git tag
Tests for operations with tags.'
. ./test-lib.sh
+. "$TEST_DIRECTORY/lib-gpg.sh"
# creating and listing lightweight tags:
@@ -585,24 +586,6 @@ test_expect_success \
test_cmp expect actual
'
-# subsequent tests require gpg; check if it is available
-gpg --version >/dev/null 2>/dev/null
-if [ $? -eq 127 ]; then
- say "# gpg not found - skipping tag signing and verification tests"
-else
- # As said here: http://www.gnupg.org/documentation/faqs.html#q6.19
- # the gpg version 1.0.6 didn't parse trust packets correctly, so for
- # that version, creation of signed tags using the generated key fails.
- case "$(gpg --version)" in
- 'gpg (GnuPG) 1.0.6'*)
- say "Skipping signed tag tests, because a bug in 1.0.6 version"
- ;;
- *)
- test_set_prereq GPG
- ;;
- esac
-fi
-
# trying to verify annotated non-signed tags:
test_expect_success GPG \
@@ -625,16 +608,6 @@ test_expect_success GPG \
# creating and verifying signed tags:
-# key generation info: gpg --homedir t/t7004 --gen-key
-# Type DSA and Elgamal, size 2048 bits, no expiration date.
-# Name and email: C O Mitter <committer@example.com>
-# No password given, to enable non-interactive operation.
-
-cp -R "$TEST_DIRECTORY"/t7004 ./gpghome
-chmod 0700 gpghome
-GNUPGHOME="$(pwd)/gpghome"
-export GNUPGHOME
-
get_tag_header signed-tag $commit commit $time >expect
echo 'A signed tag message' >>expect
echo '-----BEGIN PGP SIGNATURE-----' >>expect
diff --git a/t/t7004/pubring.gpg b/t/t7004/pubring.gpg
deleted file mode 100644
index 83855fa4e1c6c37afe550c17afa1e7971042ded5..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001
literal 1164
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diff --git a/t/t7004/random_seed b/t/t7004/random_seed
deleted file mode 100644
index 8fed1339ed0a744e5663f4a5e6b6ac9bae3d8524..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001
literal 600
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diff --git a/t/t7004/secring.gpg b/t/t7004/secring.gpg
deleted file mode 100644
index d831cd9eb3eee613d3c0e1a71093ae01ea7347e3..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001
literal 1237
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diff --git a/t/t7004/trustdb.gpg b/t/t7004/trustdb.gpg
deleted file mode 100644
index abace962b8bf84be688a6f27e4ebd0ee7052f210..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001
literal 1280
zcmZQfFGy!*W@Ke#U|?`dKkWykumMIcY@%4iM%7^n6rj+M4;MLzzlOX&pwTnxkD-}P
zc^HbXN0fL!SIq1?>env3?W^3`d(OOU5YNaX{KU(k^<0;M@87ONv)_6ZxD={-=<kYO
M2Ud3=2BC}r0AuhNr2qf`
--
1.7.7.498.g3f2e50
^ permalink raw reply related
* [PATCH v4 3/5] log: --show-signature
From: Junio C Hamano @ 2011-10-20 0:37 UTC (permalink / raw)
To: git
In-Reply-To: <1319071023-31919-1-git-send-email-gitster@pobox.com>
This teaches the "log" family of commands to pass the GPG signature in the
commit objects to "gpg --verify" via the verify_signed_buffer() interface
used to verify signed tag objects. E.g.
$ git show --show-signature -s HEAD
shows GPG output in the header part of the output.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
commit.c | 34 ++++++++++++++++++++++++++++++++++
commit.h | 3 +++
log-tree.c | 39 +++++++++++++++++++++++++++++++++++++++
revision.c | 2 ++
revision.h | 1 +
5 files changed, 79 insertions(+), 0 deletions(-)
diff --git a/commit.c b/commit.c
index 4bff3cd..93045a2 100644
--- a/commit.c
+++ b/commit.c
@@ -848,6 +848,40 @@ static int do_sign_commit(struct strbuf *buf, const char *keyid)
return 0;
}
+int parse_signed_commit(const unsigned char *sha1,
+ struct strbuf *payload, struct strbuf *signature)
+{
+ unsigned long size;
+ enum object_type type;
+ char *buffer = read_sha1_file(sha1, &type, &size);
+ int in_header, saw_signature = -1;
+ char *line;
+
+ if (!buffer || type != OBJ_COMMIT)
+ goto cleanup;
+
+ line = buffer;
+ in_header = 1;
+ saw_signature = 0;
+ while (*line) {
+ char *next = strchrnul(line, '\n');
+ if (*next)
+ next++;
+ if (in_header && !prefixcmp(line, gpg_sig_header)) {
+ const char *sig = line + gpg_sig_header_len;
+ strbuf_add(signature, sig, next - sig);
+ saw_signature = 1;
+ } else {
+ strbuf_add(payload, line, next - line);
+ }
+ if (*line == '\n')
+ in_header = 0;
+ line = next;
+ }
+ cleanup:
+ free(buffer);
+ return saw_signature;
+}
static const char commit_utf8_warn[] =
"Warning: commit message does not conform to UTF-8.\n"
diff --git a/commit.h b/commit.h
index 8c2419b..1885471 100644
--- a/commit.h
+++ b/commit.h
@@ -177,4 +177,7 @@ extern int commit_tree(const char *msg, unsigned char *tree,
struct commit_list *parents, unsigned char *ret,
const char *author, const char *sign_commit);
+extern int parse_signed_commit(const unsigned char *sha1,
+ struct strbuf *message, struct strbuf *signature);
+
#endif /* COMMIT_H */
diff --git a/log-tree.c b/log-tree.c
index 24c295e..f7b6976 100644
--- a/log-tree.c
+++ b/log-tree.c
@@ -8,6 +8,7 @@
#include "refs.h"
#include "string-list.h"
#include "color.h"
+#include "gpg-interface.h"
struct decoration name_decoration = { "object names" };
@@ -395,6 +396,41 @@ void log_write_email_headers(struct rev_info *opt, struct commit *commit,
*extra_headers_p = extra_headers;
}
+static void show_signature(struct rev_info *opt, struct commit *commit)
+{
+ struct strbuf payload = STRBUF_INIT;
+ struct strbuf signature = STRBUF_INIT;
+ struct strbuf gpg_output = STRBUF_INIT;
+ int status;
+ const char *color, *reset, *bol, *eol;
+
+ if (parse_signed_commit(commit->object.sha1, &payload, &signature) <= 0)
+ goto out;
+
+ status = verify_signed_buffer(payload.buf, payload.len,
+ signature.buf, signature.len,
+ &gpg_output);
+ if (status && !gpg_output.len)
+ strbuf_addstr(&gpg_output, "No signature\n");
+
+ color = diff_get_color_opt(&opt->diffopt,
+ status ? DIFF_WHITESPACE : DIFF_FRAGINFO);
+ reset = diff_get_color_opt(&opt->diffopt, DIFF_RESET);
+
+ bol = gpg_output.buf;
+ while (*bol) {
+ eol = strchrnul(bol, '\n');
+ printf("%s%.*s%s%s", color, (int)(eol - bol), bol, reset,
+ *eol ? "\n" : "");
+ bol = (*eol) ? (eol + 1) : eol;
+ }
+
+ out:
+ strbuf_release(&gpg_output);
+ strbuf_release(&payload);
+ strbuf_release(&signature);
+}
+
void show_log(struct rev_info *opt)
{
struct strbuf msgbuf = STRBUF_INIT;
@@ -502,6 +538,9 @@ void show_log(struct rev_info *opt)
}
}
+ if (opt->show_signature)
+ show_signature(opt, commit);
+
if (!commit->buffer)
return;
diff --git a/revision.c b/revision.c
index c46cfaa..860a312 100644
--- a/revision.c
+++ b/revision.c
@@ -1381,6 +1381,8 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
revs->show_notes = 1;
revs->show_notes_given = 1;
revs->notes_opt.use_default_notes = 1;
+ } else if (!strcmp(arg, "--show-signature")) {
+ revs->show_signature = 1;
} else if (!prefixcmp(arg, "--show-notes=") ||
!prefixcmp(arg, "--notes=")) {
struct strbuf buf = STRBUF_INIT;
diff --git a/revision.h b/revision.h
index 3d64ada..198bb95 100644
--- a/revision.h
+++ b/revision.h
@@ -89,6 +89,7 @@ struct rev_info {
show_merge:1,
show_notes:1,
show_notes_given:1,
+ show_signature:1,
pretty_given:1,
abbrev_commit:1,
abbrev_commit_given:1,
--
1.7.7.498.g3f2e50
^ permalink raw reply related
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