00590b1c3c2cceda7a75537c8680a96cd2ef84d4
[git/git.git] / builtin-prune-packed.c
1 #include "builtin.h"
2 #include "cache.h"
3 #include "progress.h"
4
5 static const char prune_packed_usage[] =
6 "git prune-packed [-n] [-q]";
7
8 #define DRY_RUN 01
9 #define VERBOSE 02
10
11 static struct progress *progress;
12
13 static void prune_dir(int i, DIR *dir, char *pathname, int len, int opts)
14 {
15 struct dirent *de;
16 char hex[40];
17
18 sprintf(hex, "%02x", i);
19 while ((de = readdir(dir)) != NULL) {
20 unsigned char sha1[20];
21 if (strlen(de->d_name) != 38)
22 continue;
23 memcpy(hex+2, de->d_name, 38);
24 if (get_sha1_hex(hex, sha1))
25 continue;
26 if (!has_sha1_pack(sha1))
27 continue;
28 memcpy(pathname + len, de->d_name, 38);
29 if (opts & DRY_RUN)
30 printf("rm -f %s\n", pathname);
31 else
32 unlink_or_warn(pathname);
33 display_progress(progress, i + 1);
34 }
35 pathname[len] = 0;
36 rmdir(pathname);
37 }
38
39 void prune_packed_objects(int opts)
40 {
41 int i;
42 static char pathname[PATH_MAX];
43 const char *dir = get_object_directory();
44 int len = strlen(dir);
45
46 if (opts == VERBOSE)
47 progress = start_progress_delay("Removing duplicate objects",
48 256, 95, 2);
49
50 if (len > PATH_MAX - 42)
51 die("impossible object directory");
52 memcpy(pathname, dir, len);
53 if (len && pathname[len-1] != '/')
54 pathname[len++] = '/';
55 for (i = 0; i < 256; i++) {
56 DIR *d;
57
58 display_progress(progress, i + 1);
59 sprintf(pathname + len, "%02x/", i);
60 d = opendir(pathname);
61 if (!d)
62 continue;
63 prune_dir(i, d, pathname, len + 3, opts);
64 closedir(d);
65 }
66 stop_progress(&progress);
67 }
68
69 int cmd_prune_packed(int argc, const char **argv, const char *prefix)
70 {
71 int i;
72 int opts = VERBOSE;
73
74 for (i = 1; i < argc; i++) {
75 const char *arg = argv[i];
76
77 if (*arg == '-') {
78 if (!strcmp(arg, "-n"))
79 opts |= DRY_RUN;
80 else if (!strcmp(arg, "-q"))
81 opts &= ~VERBOSE;
82 else
83 usage(prune_packed_usage);
84 continue;
85 }
86 /* Handle arguments here .. */
87 usage(prune_packed_usage);
88 }
89 prune_packed_objects(opts);
90 return 0;
91 }