rename_ref(): inline calls to write_ref_sha1() from this function
[git/mingw/j6t.git] / builtin / prune.c
blob04d3b12ae4e8c13ab4c232398fe1bdb3c91a7457
1 #include "cache.h"
2 #include "commit.h"
3 #include "diff.h"
4 #include "revision.h"
5 #include "builtin.h"
6 #include "reachable.h"
7 #include "parse-options.h"
8 #include "progress.h"
9 #include "dir.h"
11 static const char * const prune_usage[] = {
12 N_("git prune [-n] [-v] [--expire <time>] [--] [<head>...]"),
13 NULL
15 static int show_only;
16 static int verbose;
17 static unsigned long expire;
18 static int show_progress = -1;
20 static int prune_tmp_file(const char *fullpath)
22 struct stat st;
23 if (lstat(fullpath, &st))
24 return error("Could not stat '%s'", fullpath);
25 if (st.st_mtime > expire)
26 return 0;
27 if (show_only || verbose)
28 printf("Removing stale temporary file %s\n", fullpath);
29 if (!show_only)
30 unlink_or_warn(fullpath);
31 return 0;
34 static int prune_object(const unsigned char *sha1, const char *fullpath,
35 void *data)
37 struct stat st;
40 * Do we know about this object?
41 * It must have been reachable
43 if (lookup_object(sha1))
44 return 0;
46 if (lstat(fullpath, &st)) {
47 /* report errors, but do not stop pruning */
48 error("Could not stat '%s'", fullpath);
49 return 0;
51 if (st.st_mtime > expire)
52 return 0;
53 if (show_only || verbose) {
54 enum object_type type = sha1_object_info(sha1, NULL);
55 printf("%s %s\n", sha1_to_hex(sha1),
56 (type > 0) ? typename(type) : "unknown");
58 if (!show_only)
59 unlink_or_warn(fullpath);
60 return 0;
63 static int prune_cruft(const char *basename, const char *path, void *data)
65 if (starts_with(basename, "tmp_obj_"))
66 prune_tmp_file(path);
67 else
68 fprintf(stderr, "bad sha1 file: %s\n", path);
69 return 0;
72 static int prune_subdir(int nr, const char *path, void *data)
74 if (!show_only)
75 rmdir(path);
76 return 0;
80 * Write errors (particularly out of space) can result in
81 * failed temporary packs (and more rarely indexes and other
82 * files beginning with "tmp_") accumulating in the object
83 * and the pack directories.
85 static void remove_temporary_files(const char *path)
87 DIR *dir;
88 struct dirent *de;
90 dir = opendir(path);
91 if (!dir) {
92 fprintf(stderr, "Unable to open directory %s\n", path);
93 return;
95 while ((de = readdir(dir)) != NULL)
96 if (starts_with(de->d_name, "tmp_"))
97 prune_tmp_file(mkpath("%s/%s", path, de->d_name));
98 closedir(dir);
101 int cmd_prune(int argc, const char **argv, const char *prefix)
103 struct rev_info revs;
104 struct progress *progress = NULL;
105 const struct option options[] = {
106 OPT__DRY_RUN(&show_only, N_("do not remove, show only")),
107 OPT__VERBOSE(&verbose, N_("report pruned objects")),
108 OPT_BOOL(0, "progress", &show_progress, N_("show progress")),
109 OPT_EXPIRY_DATE(0, "expire", &expire,
110 N_("expire objects older than <time>")),
111 OPT_END()
113 char *s;
115 expire = ULONG_MAX;
116 save_commit_buffer = 0;
117 check_replace_refs = 0;
118 init_revisions(&revs, prefix);
120 argc = parse_options(argc, argv, prefix, options, prune_usage, 0);
121 while (argc--) {
122 unsigned char sha1[20];
123 const char *name = *argv++;
125 if (!get_sha1(name, sha1)) {
126 struct object *object = parse_object_or_die(sha1, name);
127 add_pending_object(&revs, object, "");
129 else
130 die("unrecognized argument: %s", name);
133 if (show_progress == -1)
134 show_progress = isatty(2);
135 if (show_progress)
136 progress = start_progress_delay(_("Checking connectivity"), 0, 0, 2);
138 mark_reachable_objects(&revs, 1, expire, progress);
139 stop_progress(&progress);
140 for_each_loose_file_in_objdir(get_object_directory(), prune_object,
141 prune_cruft, prune_subdir, NULL);
143 prune_packed_objects(show_only ? PRUNE_PACKED_DRY_RUN : 0);
144 remove_temporary_files(get_object_directory());
145 s = mkpathdup("%s/pack", get_object_directory());
146 remove_temporary_files(s);
147 free(s);
149 if (is_repository_shallow())
150 prune_shallow(show_only);
152 return 0;