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/*
* Copyright (C) 2005 Junio C Hamano
*/
#include "cache.h"
#include "diff.h"
#include "diffcore.h"
struct path_spec {
const char *spec;
int len;
};
static int matches_pathspec(const char *name, struct path_spec *s, int cnt)
{
int i;
int namelen;
if (cnt == 0)
return 1;
namelen = strlen(name);
for (i = 0; i < cnt; i++) {
int len = s[i].len;
if (! strncmp(s[i].spec, name, len) &&
len <= namelen &&
(name[len] == 0 || name[len] == '/'))
return 1;
}
return 0;
}
void diffcore_pathspec(const char **pathspec)
{
struct diff_queue_struct *q = &diff_queued_diff;
int i, speccnt;
struct diff_queue_struct outq;
struct path_spec *spec;
outq.queue = NULL;
outq.nr = outq.alloc = 0;
for (i = 0; pathspec[i]; i++)
;
speccnt = i;
spec = xmalloc(sizeof(*spec) * speccnt);
for (i = 0; pathspec[i]; i++) {
int l;
spec[i].spec = pathspec[i];
l = strlen(pathspec[i]);
while (l > 0 && pathspec[i][l-1] == '/')
l--;
spec[i].len = l;
}
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
if (matches_pathspec(p->two->path, spec, speccnt))
diff_q(&outq, p);
else
diff_free_filepair(p);
}
free(q->queue);
*q = outq;
return;
}
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