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builtin/apply: make gitdiff_*() return 1 at end of header

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The gitdiff_*() functions that are called as p->fn() in parse_git_header()
should return 1 instead of -1 in case of end of header or unrecognized
input, as these are not real errors. It just instructs the parser to break
out.

This makes it possible for gitdiff_*() functions to return -1 in case of a
real error. This will be done in a following patch.

Helped-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Christian Couder 2016-08-08 23:03:13 +02:00 committed by Junio C Hamano
parent 9724e6ff48
commit 70af7662d4
1 changed files with 9 additions and 3 deletions
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12
builtin/apply.c
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@ -812,7 +812,7 @@ static int gitdiff_hdrend(struct apply_state *state,
const char *line,
struct patch *patch)
{
return -1;
return 1;
}
/*
@ -1016,7 +1016,7 @@ static int gitdiff_unrecognized(struct apply_state *state,
const char *line,
struct patch *patch)
{
return -1;
return 1;
}
/*
@ -1248,9 +1248,13 @@ static int parse_git_header(struct apply_state *state,
for (i = 0; i < ARRAY_SIZE(optable); i++) {
const struct opentry *p = optable + i;
int oplen = strlen(p->str);
int res;
if (len < oplen || memcmp(p->str, line, oplen))
continue;
if (p->fn(state, line + oplen, patch) < 0)
res = p->fn(state, line + oplen, patch);
if (res < 0)
return -1;
if (res > 0)
return offset;
break;
}
@ -1430,6 +1434,8 @@ static int find_header(struct apply_state *state,
*/
if (!memcmp("diff --git ", line, 11)) {
int git_hdr_len = parse_git_header(state, line, len, size, patch);
if (git_hdr_len < 0)
return -128;
if (git_hdr_len <= len)
continue;
if (!patch->old_name && !patch->new_name) {