strncmp provides length information, compared to strcmp, which could
be taken advantage by the implementation. Even better, we could check
if the lengths are equal before calling strncmp, eliminating a bit of
strncmp calls.
treat_leading_path: 0.000 0.000
read_directory: 3.558 3.578
+treat_one_path: 2.305 2.323
++is_excluded: 2.098 2.117
+++prep_exclude: 0.223 0.224
+++matching: 1.529 1.544
++dir_exist: 0.035 0.035
++index_name_exists: 0.291 0.290
lazy_init_name_hash: 0.257 0.258
+simplify_away: 0.086 0.087
+dir_add_name: 0.445 0.445
While at there, fix an inconsistency about pattern/patternlen in how
attr handles EXC_FLAG_MUSTBEDIR. When parse_exclude_pattern detects
this flag, it sets patternlen _not_ to include the trailing slash and
expects the caller to trim it. add_exclude does, parse_attr_line does
not.
In attr.c, the pattern could be "foo/" while patternlen tells us it
only has 3 chars. Some functions do not care about patternlen and will
see the pattern as "foo/" while others may see it as "foo". This patch
makes patternlen 4 in this case. (Although for a piece of mind,
perhaps we should trim it to "foo" like exclude, and never pass a
pathname like "abc/" to match_{base,path}name)
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
attr.c | 2 ++
dir.c | 8 +++++---
2 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/attr.c b/attr.c
index e2f9377..1818ba5 100644
--- a/attr.c
+++ b/attr.c
@@ -255,6 +255,8 @@ static struct match_attr *parse_attr_line(const char *line, const char *src,
&res->u.pat.patternlen,
&res->u.pat.flags,
&res->u.pat.nowildcardlen);
+ if (res->u.pat.flags & EXC_FLAG_MUSTBEDIR)
+ res->u.pat.patternlen++;
if (res->u.pat.flags & EXC_FLAG_NEGATIVE) {
warning(_("Negative patterns are ignored in git attributes\n"
"Use '\\!' for literal leading exclamation."));
diff --git a/dir.c b/dir.c
index a69c8ac..a2ab200 100644
--- a/dir.c
+++ b/dir.c
@@ -636,12 +636,14 @@ int match_basename(const char *basename, int basenamelen,
int flags)
{
if (prefix == patternlen) {
- if (!strcmp_icase(pattern, basename))
+ if (patternlen == basenamelen &&
+ !strncmp_icase(pattern, basename, patternlen))
return 1;
} else if (flags & EXC_FLAG_ENDSWITH) {
if (patternlen - 1 <= basenamelen &&
- !strcmp_icase(pattern + 1,
- basename + basenamelen - patternlen + 1))
+ !strncmp_icase(pattern + 1,
+ basename + basenamelen - patternlen + 1,
+ patternlen - 1))
return 1;
} else {
if (fnmatch_icase(pattern, basename, 0) == 0)
--
1.8.1.2.536.gf441e6d
--
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