From f4cd69a67469eff90bee8e31529ca4e03c1afdf2 Mon Sep 17 00:00:00 2001 From: Adam Spiers Date: Thu, 27 Dec 2012 02:32:27 +0000 Subject: [PATCH] dir.c: refactor is_excluded() In a similar way to the previous commit, this extracts a new helper function last_exclude_matching() which returns the last exclude_list element which matched, or NULL if no match was found. is_excluded() becomes a wrapper around this, and just returns 0 or 1 depending on whether any matching exclude_list element was found. This allows callers to find out _why_ a given path was excluded, rather than just whether it was or not, paving the way for a new git sub-command which allows users to test their exclude lists from the command line. Signed-off-by: Adam Spiers Signed-off-by: Junio C Hamano --- dir.c | 38 +++++++++++++++++++++++++++++--------- 1 file changed, 29 insertions(+), 9 deletions(-) diff --git a/dir.c b/dir.c index d1a04136e..b9d423452 100644 --- a/dir.c +++ b/dir.c @@ -664,24 +664,44 @@ int is_excluded_from_list(const char *pathname, return -1; /* undecided */ } -static int is_excluded(struct dir_struct *dir, const char *pathname, int *dtype_p) +/* + * Loads the exclude lists for the directory containing pathname, then + * scans all exclude lists to determine whether pathname is excluded. + * Returns the exclude_list element which matched, or NULL for + * undecided. + */ +static struct exclude *last_exclude_matching(struct dir_struct *dir, + const char *pathname, + int *dtype_p) { int pathlen = strlen(pathname); int st; + struct exclude *exclude; const char *basename = strrchr(pathname, '/'); basename = (basename) ? basename+1 : pathname; prep_exclude(dir, pathname, basename-pathname); for (st = EXC_CMDL; st <= EXC_FILE; st++) { - switch (is_excluded_from_list(pathname, pathlen, - basename, dtype_p, - &dir->exclude_list[st])) { - case 0: - return 0; - case 1: - return 1; - } + exclude = last_exclude_matching_from_list( + pathname, pathlen, basename, dtype_p, + &dir->exclude_list[st]); + if (exclude) + return exclude; } + return NULL; +} + +/* + * Loads the exclude lists for the directory containing pathname, then + * scans all exclude lists to determine whether pathname is excluded. + * Returns 1 if true, otherwise 0. + */ +static int is_excluded(struct dir_struct *dir, const char *pathname, int *dtype_p) +{ + struct exclude *exclude = + last_exclude_matching(dir, pathname, dtype_p); + if (exclude) + return exclude->flags & EXC_FLAG_NEGATIVE ? 0 : 1; return 0; } -- 2.26.2