Merge branch 'jc/maint-1.6.0-keep-pack' into maint-1.6.1
[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 if (unlink(pathname) < 0)
32 error("unable to unlink %s", 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 sprintf(pathname + len, "%02x/", i);
59 d = opendir(pathname);
60 if (!d)
61 continue;
62 prune_dir(i, d, pathname, len + 3, opts);
63 closedir(d);
64 }
65 stop_progress(&progress);
66 }
67
68 int cmd_prune_packed(int argc, const char **argv, const char *prefix)
69 {
70 int i;
71 int opts = VERBOSE;
72
73 for (i = 1; i < argc; i++) {
74 const char *arg = argv[i];
75
76 if (*arg == '-') {
77 if (!strcmp(arg, "-n"))
78 opts |= DRY_RUN;
79 else if (!strcmp(arg, "-q"))
80 opts &= ~VERBOSE;
81 else
82 usage(prune_packed_usage);
83 continue;
84 }
85 /* Handle arguments here .. */
86 usage(prune_packed_usage);
87 }
88 prune_packed_objects(opts);
89 return 0;
90 }