archive: handle commits with an empty tree
[git/jnareb-git.git] / vcs-svn / repo_tree.c
blob67d27f0b6ca95ad62f95bb6c4fb38c58065dc8f0
1 /*
2 * Licensed under a two-clause BSD-style license.
3 * See LICENSE for details.
4 */
6 #include "git-compat-util.h"
7 #include "strbuf.h"
8 #include "repo_tree.h"
9 #include "fast_export.h"
11 const char *repo_read_path(const char *path, uint32_t *mode_out)
13 int err;
14 static struct strbuf buf = STRBUF_INIT;
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;
25 return buf.buf;
28 void repo_copy(uint32_t revision, const char *src, const char *dst)
30 int err;
31 uint32_t mode;
32 static struct strbuf data = STRBUF_INIT;
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;
42 fast_export_modify(dst, mode, data.buf);
45 void repo_delete(const char *path)
47 fast_export_delete(path);