rebase -i: accept -m as advertised in the man page
[git/git.git] / builtin-prune.c
CommitLineData
ba84a797 1#include "cache.h"
ba84a797 2#include "commit.h"
ba84a797
LT
3#include "diff.h"
4#include "revision.h"
5#include "builtin.h"
94421474 6#include "reachable.h"
ba84a797 7
026aa938 8static const char prune_usage[] = "git-prune [-n]";
96f1e58f 9static int show_only;
f01913e4 10static unsigned long expire;
ba84a797
LT
11
12static int prune_object(char *path, const char *filename, const unsigned char *sha1)
13{
f01913e4
JS
14 const char *fullpath = mkpath("%s/%s", path, filename);
15 if (expire) {
16 struct stat st;
17 if (lstat(fullpath, &st))
18 return error("Could not stat '%s'", fullpath);
19 if (st.st_mtime > expire)
20 return 0;
21 }
ba84a797 22 if (show_only) {
21666f1a
NP
23 enum object_type type = sha1_object_info(sha1, NULL);
24 printf("%s %s\n", sha1_to_hex(sha1),
25 (type > 0) ? typename(type) : "unknown");
3254d218 26 } else
f01913e4 27 unlink(fullpath);
ba84a797
LT
28 return 0;
29}
30
31static int prune_dir(int i, char *path)
32{
33 DIR *dir = opendir(path);
34 struct dirent *de;
35
36 if (!dir)
37 return 0;
38
39 while ((de = readdir(dir)) != NULL) {
40 char name[100];
41 unsigned char sha1[20];
42 int len = strlen(de->d_name);
43
44 switch (len) {
45 case 2:
46 if (de->d_name[1] != '.')
47 break;
48 case 1:
49 if (de->d_name[0] != '.')
50 break;
51 continue;
52 case 38:
53 sprintf(name, "%02x", i);
54 memcpy(name+2, de->d_name, len+1);
55 if (get_sha1_hex(name, sha1) < 0)
56 break;
57
58 /*
59 * Do we know about this object?
60 * It must have been reachable
61 */
62 if (lookup_object(sha1))
63 continue;
64
65 prune_object(path, de->d_name, sha1);
66 continue;
67 }
68 fprintf(stderr, "bad sha1 file: %s/%s\n", path, de->d_name);
69 }
3254d218
NP
70 if (!show_only)
71 rmdir(path);
ba84a797
LT
72 closedir(dir);
73 return 0;
74}
75
76static void prune_object_dir(const char *path)
77{
78 int i;
79 for (i = 0; i < 256; i++) {
80 static char dir[4096];
81 sprintf(dir, "%s/%02x", path, i);
82 prune_dir(i, dir);
83 }
84}
85
a633fca0 86int cmd_prune(int argc, const char **argv, const char *prefix)
ba84a797
LT
87{
88 int i;
24304816 89 struct rev_info revs;
ba84a797
LT
90
91 for (i = 1; i < argc; i++) {
92 const char *arg = argv[i];
93 if (!strcmp(arg, "-n")) {
94 show_only = 1;
95 continue;
96 }
f01913e4
JS
97 if (!strcmp(arg, "--expire")) {
98 if (++i < argc) {
99 expire = approxidate(argv[i]);
100 continue;
101 }
102 }
103 else if (!prefixcmp(arg, "--expire=")) {
104 expire = approxidate(arg + 9);
105 continue;
106 }
ba84a797
LT
107 usage(prune_usage);
108 }
109
16157b80 110 save_commit_buffer = 0;
a633fca0 111 init_revisions(&revs, prefix);
94421474 112 mark_reachable_objects(&revs, 1);
ba84a797
LT
113
114 prune_object_dir(get_object_directory());
115
2eb53e65
BF
116 sync();
117 prune_packed_objects(show_only);
ba84a797
LT
118 return 0;
119}