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authorLibravatar Junio C Hamano <gitster@pobox.com>2015-12-21 10:59:07 -0800
committerLibravatar Junio C Hamano <gitster@pobox.com>2015-12-21 10:59:08 -0800
commitfbe959dde7eafcdae859e21cd734c07c7890c0a4 (patch)
tree3a84214d3b1ca16b4e45a01c9e2270803a128f55
parentMerge branch 'jk/ident-loosen-getpwuid' (diff)
parentformat-patch: check that header line has expected format (diff)
downloadtgif-fbe959dde7eafcdae859e21cd734c07c7890c0a4.tar.xz
Merge branch 'bc/format-patch-null-from-line'
"format-patch" has learned a new option to zero-out the commit object name on the mbox "From " line. * bc/format-patch-null-from-line: format-patch: check that header line has expected format format-patch: add an option to suppress commit hash sha1_file.c: introduce a null_oid constant
-rw-r--r--Documentation/git-format-patch.txt4
-rw-r--r--builtin/log.c5
-rw-r--r--cache.h1
-rw-r--r--log-tree.c3
-rw-r--r--revision.h1
-rw-r--r--sha1_file.c1
-rwxr-xr-xt/t4014-format-patch.sh14
7 files changed, 28 insertions, 1 deletions
diff --git a/Documentation/git-format-patch.txt b/Documentation/git-format-patch.txt
index 4035649117..e3cdaeb958 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 069bd3a909..e00cea75cc 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/cache.h b/cache.h
index 5ab6cb50a6..c63fcc113a 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/log-tree.c b/log-tree.c
index 35e780170a..f70a30e127 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 5bc9686846..23857c0ed1 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/sha1_file.c b/sha1_file.c
index 2c68766ebf..73ccd49a46 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
diff --git a/t/t4014-format-patch.sh b/t/t4014-format-patch.sh
index 890db1174f..646c4750ec 100755
--- a/t/t4014-format-patch.sh
+++ b/t/t4014-format-patch.sh
@@ -1431,4 +1431,18 @@ 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_expect_success 'From line has expected format' '
+ git format-patch --stdout v2..v1 >patch2 &&
+ grep "^From " patch2 >from &&
+ grep "^From $_x40 Mon Sep 17 00:00:00 2001$" patch2 >filtered &&
+ test_cmp from filtered
+'
+
test_done