prune-packed: fix minor memory leak
[git/git.git] / builtin / prune-packed.c
1 #include "builtin.h"
2 #include "cache.h"
3 #include "progress.h"
4 #include "parse-options.h"
5
6 static const char * const prune_packed_usage[] = {
7 N_("git prune-packed [-n|--dry-run] [-q|--quiet]"),
8 NULL
9 };
10
11 static struct progress *progress;
12
13 static void prune_dir(int i, DIR *dir, struct strbuf *pathname, int opts)
14 {
15 struct dirent *de;
16 char hex[40];
17 int top_len = pathname->len;
18
19 sprintf(hex, "%02x", i);
20 while ((de = readdir(dir)) != NULL) {
21 unsigned char sha1[20];
22 if (strlen(de->d_name) != 38)
23 continue;
24 memcpy(hex + 2, de->d_name, 38);
25 if (get_sha1_hex(hex, sha1))
26 continue;
27 if (!has_sha1_pack(sha1))
28 continue;
29
30 strbuf_add(pathname, de->d_name, 38);
31 if (opts & PRUNE_PACKED_DRY_RUN)
32 printf("rm -f %s\n", pathname->buf);
33 else
34 unlink_or_warn(pathname->buf);
35 display_progress(progress, i + 1);
36 strbuf_setlen(pathname, top_len);
37 }
38 }
39
40 void prune_packed_objects(int opts)
41 {
42 int i;
43 const char *dir = get_object_directory();
44 struct strbuf pathname = STRBUF_INIT;
45 int top_len;
46
47 strbuf_addstr(&pathname, dir);
48 if (opts & PRUNE_PACKED_VERBOSE)
49 progress = start_progress_delay(_("Removing duplicate objects"),
50 256, 95, 2);
51
52 if (pathname.len && pathname.buf[pathname.len - 1] != '/')
53 strbuf_addch(&pathname, '/');
54
55 top_len = pathname.len;
56 for (i = 0; i < 256; i++) {
57 DIR *d;
58
59 display_progress(progress, i + 1);
60 strbuf_setlen(&pathname, top_len);
61 strbuf_addf(&pathname, "%02x/", i);
62 d = opendir(pathname.buf);
63 if (!d)
64 continue;
65 prune_dir(i, d, &pathname, opts);
66 closedir(d);
67 strbuf_setlen(&pathname, top_len + 2);
68 rmdir(pathname.buf);
69 }
70 stop_progress(&progress);
71 strbuf_release(&pathname);
72 }
73
74 int cmd_prune_packed(int argc, const char **argv, const char *prefix)
75 {
76 int opts = isatty(2) ? PRUNE_PACKED_VERBOSE : 0;
77 const struct option prune_packed_options[] = {
78 OPT_BIT('n', "dry-run", &opts, N_("dry run"),
79 PRUNE_PACKED_DRY_RUN),
80 OPT_NEGBIT('q', "quiet", &opts, N_("be quiet"),
81 PRUNE_PACKED_VERBOSE),
82 OPT_END()
83 };
84
85 argc = parse_options(argc, argv, prefix, prune_packed_options,
86 prune_packed_usage, 0);
87
88 prune_packed_objects(opts);
89 return 0;
90 }