Merge branch 'jc/diff-algo-cleanup' into maint
[git] / vcs-svn / repo_tree.c
1 /*
2  * Licensed under a two-clause BSD-style license.
3  * See LICENSE for details.
4  */
5
6 #include "git-compat-util.h"
7 #include "strbuf.h"
8 #include "repo_tree.h"
9 #include "fast_export.h"
10
11 const char *repo_read_path(const char *path, uint32_t *mode_out)
12 {
13         int err;
14         static struct strbuf buf = STRBUF_INIT;
15
16         strbuf_reset(&buf);
17         err = fast_export_ls(path, mode_out, &buf);
18         if (err) {
19                 if (errno != ENOENT)
20                         die_errno("BUG: unexpected fast_export_ls error");
21                 /* Treat missing paths as directories. */
22                 *mode_out = REPO_MODE_DIR;
23                 return NULL;
24         }
25         return buf.buf;
26 }
27
28 void repo_copy(uint32_t revision, const char *src, const char *dst)
29 {
30         int err;
31         uint32_t mode;
32         static struct strbuf data = STRBUF_INIT;
33
34         strbuf_reset(&data);
35         err = fast_export_ls_rev(revision, src, &mode, &data);
36         if (err) {
37                 if (errno != ENOENT)
38                         die_errno("BUG: unexpected fast_export_ls_rev error");
39                 fast_export_delete(dst);
40                 return;
41         }
42         fast_export_modify(dst, mode, data.buf);
43 }
44
45 void repo_delete(const char *path)
46 {
47         fast_export_delete(path);
48 }