Make apply accept the -pNUM option like patch does.
[git/mingw.git] / diffcore-pathspec.c
blob139fe882f9f85575af297a2131cfac2888ae3c73
1 /*
2 * Copyright (C) 2005 Junio C Hamano
3 */
4 #include "cache.h"
5 #include "diff.h"
6 #include "diffcore.h"
8 struct path_spec {
9 const char *spec;
10 int len;
13 static int matches_pathspec(const char *name, struct path_spec *s, int cnt)
15 int i;
16 int namelen;
18 if (cnt == 0)
19 return 1;
21 namelen = strlen(name);
22 for (i = 0; i < cnt; i++) {
23 int len = s[i].len;
24 if (namelen < len)
25 continue;
26 if (memcmp(s[i].spec, name, len))
27 continue;
28 if (s[i].spec[len-1] == '/' ||
29 name[len] == 0 ||
30 name[len] == '/')
31 return 1;
32 if (!len)
33 return 1;
35 return 0;
38 void diffcore_pathspec(const char **pathspec)
40 struct diff_queue_struct *q = &diff_queued_diff;
41 int i, speccnt;
42 struct diff_queue_struct outq;
43 struct path_spec *spec;
45 outq.queue = NULL;
46 outq.nr = outq.alloc = 0;
48 for (i = 0; pathspec[i]; i++)
50 speccnt = i;
51 if (!speccnt)
52 return;
54 spec = xmalloc(sizeof(*spec) * speccnt);
55 for (i = 0; pathspec[i]; i++) {
56 spec[i].spec = pathspec[i];
57 spec[i].len = strlen(pathspec[i]);
60 for (i = 0; i < q->nr; i++) {
61 struct diff_filepair *p = q->queue[i];
62 if (matches_pathspec(p->two->path, spec, speccnt))
63 diff_q(&outq, p);
64 else
65 diff_free_filepair(p);
67 free(q->queue);
68 *q = outq;
69 return;