[PATCH v8 17/41] builtin/apply: make gitdiff_*() return -1 on error
From: Christian Couder <hidden>
Date: 2016-06-27 18:27:06
Subsystem:
the rest · Maintainer:
Linus Torvalds
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 [off-list ref] Signed-off-by: Christian Couder <redacted> --- builtin/apply.c | 40 +++++++++++++++++++++------------------- 1 file changed, 21 insertions(+), 19 deletions(-)
diff --git a/builtin/apply.c b/builtin/apply.c
index 0bed352..b48b526 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,
--
2.9.0.172.gfb57a78