path: root/log-tree.c
diff options
authorbrian m. carlson <>2015-12-15 01:52:04 (GMT)
committerJunio C Hamano <>2015-12-15 18:03:40 (GMT)
commit3a30aa17879b08f96262abb9a22c7bbe8f56e4c9 (patch)
treeace01289693a796bfb19661e6ed78d1b81381859 /log-tree.c
parent3e56e7245c37ce57dde72ec74ee2df41ce603dda (diff)
format-patch: add an option to suppress commit hash
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 <> Signed-off-by: Junio C Hamano <>
Diffstat (limited to 'log-tree.c')
1 files changed, 2 insertions, 1 deletions
diff --git a/log-tree.c b/log-tree.c
index 35e7801..f70a30e 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) {