* [PATCH v3 1/3] Introduce a null_oid constant.
2015-12-15 1:52 [PATCH v3 0/3] format-patch: introduce option to suppress commit hashes brian m. carlson
@ 2015-12-15 1:52 ` brian m. carlson
2015-12-15 1:52 ` [PATCH v3 2/3] format-patch: add an option to suppress commit hash brian m. carlson
2015-12-15 1:52 ` [PATCH v3 3/3] format-patch: check that header line has expected format brian m. carlson
2 siblings, 0 replies; 4+ messages in thread
From: brian m. carlson @ 2015-12-15 1:52 UTC (permalink / raw)
To: git; +Cc: Stefan Beller, Jeff King, Torsten Bögershausen,
Junio C Hamano
null_oid is the struct object_id equivalent to null_sha1.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
---
cache.h | 1 +
sha1_file.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/cache.h b/cache.h
index 5ab6cb50..c63fcc11 100644
--- a/cache.h
+++ b/cache.h
@@ -831,6 +831,7 @@ extern const char *find_unique_abbrev(const unsigned char *sha1, int len);
extern int find_unique_abbrev_r(char *hex, const unsigned char *sha1, int len);
extern const unsigned char null_sha1[GIT_SHA1_RAWSZ];
+extern const struct object_id null_oid;
static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2)
{
diff --git a/sha1_file.c b/sha1_file.c
index 27ce7b70..a54deb05 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -36,6 +36,7 @@
static inline uintmax_t sz_fmt(size_t s) { return s; }
const unsigned char null_sha1[20];
+const struct object_id null_oid;
/*
* This is meant to hold a *small* number of objects that you would
--
2.7.0.rc0.194.g1187e4e.dirty
^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH v3 2/3] format-patch: add an option to suppress commit hash
2015-12-15 1:52 [PATCH v3 0/3] format-patch: introduce option to suppress commit hashes brian m. carlson
2015-12-15 1:52 ` [PATCH v3 1/3] Introduce a null_oid constant brian m. carlson
@ 2015-12-15 1:52 ` brian m. carlson
2015-12-15 1:52 ` [PATCH v3 3/3] format-patch: check that header line has expected format brian m. carlson
2 siblings, 0 replies; 4+ messages in thread
From: brian m. carlson @ 2015-12-15 1:52 UTC (permalink / raw)
To: git; +Cc: Stefan Beller, Jeff King, Torsten Bögershausen,
Junio C Hamano
Oftentimes, patches created by git format-patch will be stored in
version control or compared with diff. In these cases, two otherwise
identical patches can have different commit hashes, leading to diff
noise. Teach git format-patch a --zero-commit option that instead
produces an all-zero hash to avoid this diff noise.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
---
Documentation/git-format-patch.txt | 4 ++++
builtin/log.c | 5 +++++
log-tree.c | 3 ++-
revision.h | 1 +
t/t4014-format-patch.sh | 7 +++++++
5 files changed, 19 insertions(+), 1 deletion(-)
diff --git a/Documentation/git-format-patch.txt b/Documentation/git-format-patch.txt
index 40356491..e3cdaeb9 100644
--- a/Documentation/git-format-patch.txt
+++ b/Documentation/git-format-patch.txt
@@ -256,6 +256,10 @@ you can use `--suffix=-patch` to get `0001-description-of-my-change-patch`.
using this option cannot be applied properly, but they are
still useful for code review.
+--zero-commit::
+ Output an all-zero hash in each patch's From header instead
+ of the hash of the commit.
+
--root::
Treat the revision argument as a <revision range>, even if it
is just a single commit (that would normally be treated as a
diff --git a/builtin/log.c b/builtin/log.c
index 069bd3a9..e00cea75 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -1196,6 +1196,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
int cover_letter = -1;
int boundary_count = 0;
int no_binary_diff = 0;
+ int zero_commit = 0;
struct commit *origin = NULL;
const char *in_reply_to = NULL;
struct patch_ids ids;
@@ -1236,6 +1237,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
PARSE_OPT_NOARG | PARSE_OPT_NONEG, keep_callback },
OPT_BOOL(0, "no-binary", &no_binary_diff,
N_("don't output binary diffs")),
+ OPT_BOOL(0, "zero-commit", &zero_commit,
+ N_("output all-zero hash in From header")),
OPT_BOOL(0, "ignore-if-in-upstream", &ignore_if_in_upstream,
N_("don't include a patch matching a commit upstream")),
{ OPTION_SET_INT, 'p', "no-stat", &use_patch_format, NULL,
@@ -1380,6 +1383,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
/* Always generate a patch */
rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
+ rev.zero_commit = zero_commit;
+
if (!DIFF_OPT_TST(&rev.diffopt, TEXT) && !no_binary_diff)
DIFF_OPT_SET(&rev.diffopt, BINARY);
diff --git a/log-tree.c b/log-tree.c
index 35e78017..f70a30e1 100644
--- a/log-tree.c
+++ b/log-tree.c
@@ -342,7 +342,8 @@ void log_write_email_headers(struct rev_info *opt, struct commit *commit,
{
const char *subject = NULL;
const char *extra_headers = opt->extra_headers;
- const char *name = oid_to_hex(&commit->object.oid);
+ const char *name = oid_to_hex(opt->zero_commit ?
+ &null_oid : &commit->object.oid);
*need_8bit_cte_p = 0; /* unknown */
if (opt->total > 0) {
diff --git a/revision.h b/revision.h
index 5bc96868..23857c0e 100644
--- a/revision.h
+++ b/revision.h
@@ -135,6 +135,7 @@ struct rev_info {
pretty_given:1,
abbrev_commit:1,
abbrev_commit_given:1,
+ zero_commit:1,
use_terminator:1,
missing_newline:1,
date_mode_explicit:1,
diff --git a/t/t4014-format-patch.sh b/t/t4014-format-patch.sh
index 890db117..2737ca63 100755
--- a/t/t4014-format-patch.sh
+++ b/t/t4014-format-patch.sh
@@ -1431,4 +1431,11 @@ test_expect_success 'cover letter auto user override' '
test_line_count = 2 list
'
+test_expect_success 'format-patch --zero-commit' '
+ git format-patch --zero-commit --stdout v2..v1 >patch2 &&
+ grep "^From " patch2 | sort | uniq >actual &&
+ echo "From $_z40 Mon Sep 17 00:00:00 2001" >expect &&
+ test_cmp expect actual
+'
+
test_done
--
2.7.0.rc0.194.g1187e4e.dirty
^ permalink raw reply related [flat|nested] 4+ messages in thread