To libify `git apply` functionality we have to signal errors to the
caller instead of die()ing.
To do that in a compatible manner with the rest of the error handling
in "builtin/apply.c", gitdiff_*() functions should return -1 instead
of calling die().
A previous patch made it possible for gitdiff_*() functions to
return -1 in case of error. Let's take advantage of that to
make gitdiff_verify_name() return -1 on error, and to have
gitdiff_oldname() and gitdiff_newname() directly return
what gitdiff_verify_name() returns.
Helped-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
Signed-off-by: Christian Couder <chrisc...@tuxfamily.org>
---
builtin/apply.c | 40 +++++++++++++++++++++-------------------
1 file changed, 21 insertions(+), 19 deletions(-)
diff --git a/builtin/apply.c b/builtin/apply.c
index eb918e5..6b16173 100644
--- a/builtin/apply.c
+++ b/builtin/apply.c
@@ -827,54 +827,56 @@ static int gitdiff_hdrend(struct apply_state *state,
#define DIFF_OLD_NAME 0
#define DIFF_NEW_NAME 1
-static void gitdiff_verify_name(struct apply_state *state,
- const char *line,
- int isnull,
- char **name,
- int side)
+static int gitdiff_verify_name(struct apply_state *state,
+ const char *line,
+ int isnull,
+ char **name,
+ int side)
{
if (!*name && !isnull) {
*name = find_name(state, line, NULL, state->p_value, TERM_TAB);
- return;
+ return 0;
}
if (*name) {
int len = strlen(*name);
char *another;
if (isnull)
- die(_("git apply: bad git-diff - expected /dev/null,
got %s on line %d"),
- *name, state->linenr);
+ return error(_("git apply: bad git-diff - expected
/dev/null, got %s on line %d"),
+ *name, state->linenr);
another = find_name(state, line, NULL, state->p_value,
TERM_TAB);
- if (!another || memcmp(another, *name, len + 1))
- die((side == DIFF_NEW_NAME) ?
+ if (!another || memcmp(another, *name, len + 1)) {
+ free(another);
+ return error((side == DIFF_NEW_NAME) ?
_("git apply: bad git-diff - inconsistent new
filename on line %d") :
_("git apply: bad git-diff - inconsistent old
filename on line %d"), state->linenr);
+ }
free(another);
} else {
/* expect "/dev/null" */
if (memcmp("/dev/null", line, 9) || line[9] != '\n')
- die(_("git apply: bad git-diff - expected /dev/null on
line %d"), state->linenr);
+ return error(_("git apply: bad git-diff - expected
/dev/null on line %d"), state->linenr);
}
+
+ return 0;
}
static int gitdiff_oldname(struct apply_state *state,
const char *line,
struct patch *patch)
{
- gitdiff_verify_name(state, line,
- patch->is_new, &patch->old_name,
- DIFF_OLD_NAME);
- return 0;
+ return gitdiff_verify_name(state, line,
+ patch->is_new, &patch->old_name,
+ DIFF_OLD_NAME);
}
static int gitdiff_newname(struct apply_state *state,
const char *line,
struct patch *patch)
{
- gitdiff_verify_name(state, line,
- patch->is_delete, &patch->new_name,
- DIFF_NEW_NAME);
- return 0;
+ return gitdiff_verify_name(state, line,
+ patch->is_delete, &patch->new_name,
+ DIFF_NEW_NAME);
}
static int gitdiff_oldmode(struct apply_state *state,
--
2.9.2.614.g4980f51
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