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| author | Jeff King <peff@peff.net> | 2017-07-13 10:56:10 -0400 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2017-07-13 12:42:50 -0700 |
| commit | 2eda0102beb85b97bd43708176d81feabaf161e8 (patch) | |
| tree | c87815f88fbc559d434b3a8dd2c129803416de10 | |
| parent | 80145b1e412719c960036c8c62a9e35dd23a5b2d (diff) | |
| download | git-2eda0102beb85b97bd43708176d81feabaf161e8.tar.gz | |
check return value of verify_ref_format()
Users of the ref-filter code must call verify_ref_format()
before formatting any refs, but most ignore its return
value. This means we may print an error on a syntactically
bogus pattern, but keep going anyway.
In most cases this results in a fatal error when we actually
try to format a ref. But if you have no refs to show at all,
then the behavior is confusing: git prints the error from
verify_ref_format(), then exits with code 0 without showing
any output. Let's instead abort immediately if we know we
have a bogus format.
We'll output the usage information if we have it handy (just
like the existing call in cmd_for_each_ref() does), and
otherwise just die().
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
| -rw-r--r-- | builtin/branch.c | 4 | ||||
| -rw-r--r-- | builtin/tag.c | 7 | ||||
| -rw-r--r-- | builtin/verify-tag.c | 4 |
3 files changed, 10 insertions, 5 deletions
diff --git a/builtin/branch.c b/builtin/branch.c index 8a0595e115..e756a5667a 100644 --- a/builtin/branch.c +++ b/builtin/branch.c @@ -409,7 +409,9 @@ static void print_ref_list(struct ref_filter *filter, struct ref_sorting *sortin if (!format) format = to_free = build_format(filter, maxwidth, remote_prefix); - verify_ref_format(format); + + if (verify_ref_format(format)) + die(_("unable to parse format string")); ref_array_sort(sorting, &array); diff --git a/builtin/tag.c b/builtin/tag.c index 01154ea8dc..216629fb2c 100644 --- a/builtin/tag.c +++ b/builtin/tag.c @@ -53,7 +53,8 @@ static int list_tags(struct ref_filter *filter, struct ref_sorting *sorting, con format = "%(refname:lstrip=2)"; } - verify_ref_format(format); + if (verify_ref_format(format)) + die(_("unable to parse format string")); filter->with_commit_tag_algo = 1; filter_refs(&array, filter, FILTER_REFS_TAGS); ref_array_sort(sorting, &array); @@ -501,8 +502,8 @@ int cmd_tag(int argc, const char **argv, const char *prefix) if (cmdmode == 'd') return for_each_tag_name(argv, delete_tag, NULL); if (cmdmode == 'v') { - if (format) - verify_ref_format(format); + if (format && verify_ref_format(format)) + usage_with_options(git_tag_usage, options); return for_each_tag_name(argv, verify_tag, format); } diff --git a/builtin/verify-tag.c b/builtin/verify-tag.c index f9a5f7535a..a10eca2b2d 100644 --- a/builtin/verify-tag.c +++ b/builtin/verify-tag.c @@ -51,7 +51,9 @@ int cmd_verify_tag(int argc, const char **argv, const char *prefix) flags |= GPG_VERIFY_VERBOSE; if (fmt_pretty) { - verify_ref_format(fmt_pretty); + if (verify_ref_format(fmt_pretty)) + usage_with_options(verify_tag_usage, + verify_tag_options); flags |= GPG_VERIFY_OMIT_STATUS; } |