reachable: reuse revision.c "add all reflogs" code
[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"
629de472 7#include "parse-options.h"
dc347195 8#include "progress.h"
8ca12c0d 9#include "dir.h"
ba84a797 10
629de472 11static const char * const prune_usage[] = {
8f5b7281 12 N_("git prune [-n] [-v] [--expire <time>] [--] [<head>...]"),
629de472
MB
13 NULL
14};
96f1e58f 15static int show_only;
b35ddf41 16static int verbose;
f01913e4 17static unsigned long expire;
bf0a59b3 18static int show_progress = -1;
ba84a797 19
4454e9cb 20static int prune_tmp_file(const char *fullpath)
0e8316cc 21{
cbf731ed
AS
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;
90b29cb7
BC
27 if (show_only || verbose)
28 printf("Removing stale temporary file %s\n", fullpath);
0e8316cc 29 if (!show_only)
691f1a28 30 unlink_or_warn(fullpath);
0e8316cc
BC
31 return 0;
32}
33
4454e9cb 34static int prune_object(const char *fullpath, const unsigned char *sha1)
ba84a797 35{
cbf731ed
AS
36 struct stat st;
37 if (lstat(fullpath, &st))
38 return error("Could not stat '%s'", fullpath);
39 if (st.st_mtime > expire)
40 return 0;
b35ddf41 41 if (show_only || verbose) {
21666f1a
NP
42 enum object_type type = sha1_object_info(sha1, NULL);
43 printf("%s %s\n", sha1_to_hex(sha1),
44 (type > 0) ? typename(type) : "unknown");
b35ddf41
MG
45 }
46 if (!show_only)
691f1a28 47 unlink_or_warn(fullpath);
ba84a797
LT
48 return 0;
49}
50
4454e9cb 51static int prune_dir(int i, struct strbuf *path)
ba84a797 52{
4454e9cb
JK
53 size_t baselen = path->len;
54 DIR *dir = opendir(path->buf);
ba84a797
LT
55 struct dirent *de;
56
57 if (!dir)
58 return 0;
59
60 while ((de = readdir(dir)) != NULL) {
61 char name[100];
62 unsigned char sha1[20];
ba84a797 63
8ca12c0d 64 if (is_dot_or_dotdot(de->d_name))
ba84a797 65 continue;
8ca12c0d 66 if (strlen(de->d_name) == 38) {
ba84a797 67 sprintf(name, "%02x", i);
8ca12c0d 68 memcpy(name+2, de->d_name, 39);
ba84a797
LT
69 if (get_sha1_hex(name, sha1) < 0)
70 break;
71
72 /*
73 * Do we know about this object?
74 * It must have been reachable
75 */
76 if (lookup_object(sha1))
77 continue;
78
4454e9cb
JK
79 strbuf_addf(path, "/%s", de->d_name);
80 prune_object(path->buf, sha1);
81 strbuf_setlen(path, baselen);
ba84a797
LT
82 continue;
83 }
59556548 84 if (starts_with(de->d_name, "tmp_obj_")) {
4454e9cb
JK
85 strbuf_addf(path, "/%s", de->d_name);
86 prune_tmp_file(path->buf);
87 strbuf_setlen(path, baselen);
3d32a46b
BC
88 continue;
89 }
4454e9cb 90 fprintf(stderr, "bad sha1 file: %s/%s\n", path->buf, de->d_name);
ba84a797 91 }
d34e70d6 92 closedir(dir);
3254d218 93 if (!show_only)
4454e9cb 94 rmdir(path->buf);
ba84a797
LT
95 return 0;
96}
97
98static void prune_object_dir(const char *path)
99{
4454e9cb
JK
100 struct strbuf buf = STRBUF_INIT;
101 size_t baselen;
ba84a797 102 int i;
4454e9cb
JK
103
104 strbuf_addstr(&buf, path);
105 strbuf_addch(&buf, '/');
106 baselen = buf.len;
107
ba84a797 108 for (i = 0; i < 256; i++) {
4454e9cb
JK
109 strbuf_addf(&buf, "%02x", i);
110 prune_dir(i, &buf);
111 strbuf_setlen(&buf, baselen);
ba84a797
LT
112 }
113}
114
8464010f
DST
115/*
116 * Write errors (particularly out of space) can result in
117 * failed temporary packs (and more rarely indexes and other
9517e6b8 118 * files beginning with "tmp_") accumulating in the object
db87e396 119 * and the pack directories.
8464010f 120 */
db87e396 121static void remove_temporary_files(const char *path)
8464010f
DST
122{
123 DIR *dir;
124 struct dirent *de;
8464010f 125
db87e396 126 dir = opendir(path);
8464010f 127 if (!dir) {
db87e396 128 fprintf(stderr, "Unable to open directory %s\n", path);
8464010f
DST
129 return;
130 }
0e8316cc 131 while ((de = readdir(dir)) != NULL)
59556548 132 if (starts_with(de->d_name, "tmp_"))
4454e9cb 133 prune_tmp_file(mkpath("%s/%s", path, de->d_name));
8464010f
DST
134 closedir(dir);
135}
136
a633fca0 137int cmd_prune(int argc, const char **argv, const char *prefix)
ba84a797 138{
24304816 139 struct rev_info revs;
bf0a59b3 140 struct progress *progress = NULL;
629de472 141 const struct option options[] = {
8f5b7281
NTND
142 OPT__DRY_RUN(&show_only, N_("do not remove, show only")),
143 OPT__VERBOSE(&verbose, N_("report pruned objects")),
144 OPT_BOOL(0, "progress", &show_progress, N_("show progress")),
27ec394a
JH
145 OPT_EXPIRY_DATE(0, "expire", &expire,
146 N_("expire objects older than <time>")),
629de472
MB
147 OPT_END()
148 };
db87e396 149 char *s;
ba84a797 150
cbf731ed 151 expire = ULONG_MAX;
16157b80 152 save_commit_buffer = 0;
afc711b8 153 check_replace_refs = 0;
a633fca0 154 init_revisions(&revs, prefix);
ba84a797 155
37782920 156 argc = parse_options(argc, argv, prefix, options, prune_usage, 0);
fe308f53
JH
157 while (argc--) {
158 unsigned char sha1[20];
159 const char *name = *argv++;
160
161 if (!get_sha1(name, sha1)) {
f7892d18 162 struct object *object = parse_object_or_die(sha1, name);
fe308f53
JH
163 add_pending_object(&revs, object, "");
164 }
165 else
166 die("unrecognized argument: %s", name);
167 }
bf0a59b3
JK
168
169 if (show_progress == -1)
170 show_progress = isatty(2);
171 if (show_progress)
754dbc43 172 progress = start_progress_delay(_("Checking connectivity"), 0, 0, 2);
bf0a59b3 173
dc347195
NTND
174 mark_reachable_objects(&revs, 1, progress);
175 stop_progress(&progress);
ba84a797
LT
176 prune_object_dir(get_object_directory());
177
af0b4a3b 178 prune_packed_objects(show_only ? PRUNE_PACKED_DRY_RUN : 0);
db87e396 179 remove_temporary_files(get_object_directory());
4e2d094d 180 s = mkpathdup("%s/pack", get_object_directory());
db87e396
BC
181 remove_temporary_files(s);
182 free(s);
eab3296c
NTND
183
184 if (is_repository_shallow())
185 prune_shallow(show_only);
186
ba84a797
LT
187 return 0;
188}