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format-patch: make --base patch-id output stable

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We weren't flushing the context each time we processed a hunk in the
patch-id generation code in diff.c, but we were doing that when we
generated "stable" patch-ids with the 'patch-id' tool. Let's port that
similar logic over from patch-id.c into diff.c so we can get the same
hash when we're generating patch-ids for 'format-patch --base=' types of
command invocations.

Cc: Xiaolong Ye <xiaolong.ye@intel.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Stephen Boyd
2019-04-26 16:51:57 -07:00
committed by Junio C Hamano
parent 6f93d261fa
commit a8f6855f48
8 changed files with 42 additions and 34 deletions
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3
diff.h
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@ -436,7 +436,8 @@ int run_diff_files(struct rev_info *revs, unsigned int option);
int run_diff_index(struct rev_info *revs, int cached);
int do_diff_cache(const struct object_id *, struct diff_options *);
int diff_flush_patch_id(struct diff_options *, struct object_id *, int);
int diff_flush_patch_id(struct diff_options *, struct object_id *, int, int);
void flush_one_hunk(struct object_id *, git_SHA_CTX *);
int diff_result_code(struct diff_options *, int);