reset: add t7112 for submodule updates
[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 }
72
73 int cmd_prune_packed(int argc, const char **argv, const char *prefix)
74 {
75         int opts = isatty(2) ? PRUNE_PACKED_VERBOSE : 0;
76         const struct option prune_packed_options[] = {
77                 OPT_BIT('n', "dry-run", &opts, N_("dry run"),
78                         PRUNE_PACKED_DRY_RUN),
79                 OPT_NEGBIT('q', "quiet", &opts, N_("be quiet"),
80                            PRUNE_PACKED_VERBOSE),
81                 OPT_END()
82         };
83
84         argc = parse_options(argc, argv, prefix, prune_packed_options,
85                              prune_packed_usage, 0);
86
87         prune_packed_objects(opts);
88         return 0;
89 }