diff options
| author | Nguyễn Thái Ngọc Duy <pclouds@gmail.com> | 2013-01-01 06:44:09 +0400 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2013-01-02 03:32:37 +0400 |
| commit | 46983441ae17b34abee2954b87efeeefbe0768b3 (patch) | |
| tree | fa4f76a660b86742f05d8ae2d1a9407cf24c936d /wildmatch.c | |
| parent | 1b25892636d2f250eb2163301440ee8c8c1ac944 (diff) | |
wildmatch: make a special case for "*/" with FNM_PATHNAME
Normally we need recursion for "*". In this case we know that it
matches everything until "/" so we can skip the recursion.
glibc, '*/*/*' on linux-2.6.git file list 2000 times
before:
wildmatch 8s 74513us
fnmatch 1s 97042us or 13.59% faster
after:
wildmatch 3s 521862us
fnmatch 3s 488616us or 99.06% slower
Same test with compat/fnmatch:
wildmatch 8s 110763us
fnmatch 2s 980845us or 36.75% faster
wildmatch 3s 522156us
fnmatch 1s 544487us or 43.85% slower
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'wildmatch.c')
| -rw-r--r-- | wildmatch.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/wildmatch.c b/wildmatch.c index 536470b794..bb425220b0 100644 --- a/wildmatch.c +++ b/wildmatch.c @@ -117,6 +117,18 @@ static int dowild(const uchar *p, const uchar *text, unsigned int flags) return WM_NOMATCH; } return WM_MATCH; + } else if (!match_slash && *p == '/') { + /* + * _one_ asterisk followed by a slash + * with WM_PATHNAME matches the next + * directory + */ + const char *slash = strchr((char*)text, '/'); + if (!slash) + return WM_NOMATCH; + text = (const uchar*)slash; + /* the slash is consumed by the top-level for loop */ + break; } while (1) { if (t_ch == '\0') |