From f950eb956092831730182daa7160eaa352277fa9 Mon Sep 17 00:00:00 2001 From: Clemens Buchacher Date: Sun, 4 Sep 2011 12:42:01 +0200 Subject: rename pathspec_prefix() to common_prefix() and move to dir.[ch] Also make common_prefix_len() static as this refactoring makes dir.c itself the only caller of this helper function. Signed-off-by: Clemens Buchacher Signed-off-by: Junio C Hamano --- dir.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'dir.c') diff --git a/dir.c b/dir.c index 7bc75c9448..6c0d782579 100644 --- a/dir.c +++ b/dir.c @@ -34,7 +34,7 @@ int fnmatch_icase(const char *pattern, const char *string, int flags) return fnmatch(pattern, string, flags | (ignore_case ? FNM_CASEFOLD : 0)); } -size_t common_prefix_len(const char **pathspec) +static size_t common_prefix_len(const char **pathspec) { const char *n, *first; size_t max = 0; @@ -61,6 +61,17 @@ size_t common_prefix_len(const char **pathspec) return max; } +/* + * Returns a copy of the longest leading path common among all + * pathspecs. + */ +char *common_prefix(const char **pathspec) +{ + unsigned long len = common_prefix_len(pathspec); + + return len ? xmemdupz(*pathspec, len) : NULL; +} + int fill_directory(struct dir_struct *dir, const char **pathspec) { const char *path; -- cgit v1.2.1