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Rev-parse: regex check for "git describe" output.

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This commit is contained in:
Ben Straub 2012-05-10 15:05:19 -07:00
parent b41384b473
commit 7e79d389a4
1 changed files with 17 additions and 0 deletions
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17
src/revparse.c
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@ -37,6 +37,22 @@ static int revparse_lookup_fully_qualifed_ref(git_object **out, git_repository *
return git_object_lookup(out, repo, &resolved, GIT_OBJ_ANY);
}
/* Returns non-zero if yes */
static int spec_looks_like_describe_output(const char *spec)
{
regex_t regex;
int regex_error, retcode;
regex_error = regcomp(&regex, ".+-[0-9]+-g[0-9a-fA-F]+", REG_EXTENDED);
if (regex_error != 0) {
giterr_set_regex(&regex, regex_error);
return 1; /* To be safe */
}
retcode = regexec(&regex, spec, 0, NULL, 0);
regfree(&regex);
return retcode == 0;
}
static int revparse_lookup_object(git_object **out, git_repository *repo, const char *spec)
{
size_t speclen = strlen(spec);
@ -57,6 +73,7 @@ static int revparse_lookup_object(git_object **out, git_repository *repo, const
/* "git describe" output; snip everything before/including "-g" */
substr = strstr(spec, "-g");
if (substr &&
spec_looks_like_describe_output(spec) &&
!revparse_lookup_object(out, repo, substr+2)) {
return 0;
}