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Commit | Line | Data |
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33db5f4d LT |
1 | /* |
2 | * Check-out files from the "current cache directory" | |
3 | * | |
4 | * Copyright (C) 2005 Linus Torvalds | |
5 | * | |
6 | * Careful: order of argument flags does matter. For example, | |
7 | * | |
215a7ad1 | 8 | * git-checkout-index -a -f file.c |
33db5f4d LT |
9 | * |
10 | * Will first check out all files listed in the cache (but not | |
11 | * overwrite any old ones), and then force-checkout "file.c" a | |
12 | * second time (ie that one _will_ overwrite any old contents | |
13 | * with the same filename). | |
14 | * | |
215a7ad1 JH |
15 | * Also, just doing "git-checkout-index" does nothing. You probably |
16 | * meant "git-checkout-index -a". And if you want to force it, you | |
17 | * want "git-checkout-index -f -a". | |
33db5f4d LT |
18 | * |
19 | * Intuitiveness is not the goal here. Repeatability is. The | |
20 | * reason for the "no arguments means no work" thing is that | |
21 | * from scripts you are supposed to be able to do things like | |
22 | * | |
215a7ad1 | 23 | * find . -name '*.h' -print0 | xargs -0 git-checkout-index -f -- |
33db5f4d | 24 | * |
9debe63d SP |
25 | * or: |
26 | * | |
27 | * find . -name '*.h' -print0 | git-checkout-index -f -z --stdin | |
28 | * | |
33db5f4d LT |
29 | * which will force all existing *.h files to be replaced with |
30 | * their cached copies. If an empty command line implied "all", | |
31 | * then this would force-refresh everything in the cache, which | |
32 | * was not the point. | |
33 | * | |
34 | * Oh, and the "--" is just a good idea when you know the rest | |
35 | * will be filenames. Just so that you wouldn't have a filename | |
36 | * of "-a" causing problems (not possible in the above example, | |
37 | * but get used to it in scripting!). | |
38 | */ | |
baffc0e7 | 39 | #include "builtin.h" |
33db5f4d | 40 | #include "cache.h" |
9debe63d | 41 | #include "quote.h" |
bad68ec9 | 42 | #include "cache-tree.h" |
33db5f4d | 43 | |
de84f99c | 44 | #define CHECKOUT_ALL 4 |
de84f99c | 45 | static int line_termination = '\n'; |
3bd348ae | 46 | static int checkout_stage; /* default to checkout stage0 */ |
de84f99c | 47 | static int to_tempfile; |
095c424d | 48 | static char topath[4][PATH_MAX + 1]; |
c3e9a653 | 49 | |
344c52ae | 50 | static struct checkout state; |
33db5f4d | 51 | |
e414156a | 52 | static void write_tempfile_record(const char *name, int prefix_length) |
de84f99c SP |
53 | { |
54 | int i; | |
55 | ||
56 | if (CHECKOUT_ALL == checkout_stage) { | |
57 | for (i = 1; i < 4; i++) { | |
58 | if (i > 1) | |
59 | putchar(' '); | |
60 | if (topath[i][0]) | |
61 | fputs(topath[i], stdout); | |
62 | else | |
63 | putchar('.'); | |
64 | } | |
65 | } else | |
66 | fputs(topath[checkout_stage], stdout); | |
67 | ||
68 | putchar('\t'); | |
663af342 | 69 | write_name_quoted(name + prefix_length, stdout, line_termination); |
de84f99c SP |
70 | |
71 | for (i = 0; i < 4; i++) { | |
72 | topath[i][0] = 0; | |
73 | } | |
74 | } | |
75 | ||
e414156a | 76 | static int checkout_file(const char *name, int prefix_length) |
33db5f4d | 77 | { |
3bd348ae JH |
78 | int namelen = strlen(name); |
79 | int pos = cache_name_pos(name, namelen); | |
80 | int has_same_name = 0; | |
de84f99c SP |
81 | int did_checkout = 0; |
82 | int errs = 0; | |
3bd348ae JH |
83 | |
84 | if (pos < 0) | |
85 | pos = -pos - 1; | |
86 | ||
87 | while (pos < active_nr) { | |
88 | struct cache_entry *ce = active_cache[pos]; | |
f4f9adae | 89 | if (ce_namelen(ce) != namelen || |
3bd348ae JH |
90 | memcmp(ce->name, name, namelen)) |
91 | break; | |
92 | has_same_name = 1; | |
3bd348ae | 93 | pos++; |
de84f99c SP |
94 | if (ce_stage(ce) != checkout_stage |
95 | && (CHECKOUT_ALL != checkout_stage || !ce_stage(ce))) | |
96 | continue; | |
97 | did_checkout = 1; | |
98 | if (checkout_entry(ce, &state, | |
99 | to_tempfile ? topath[ce_stage(ce)] : NULL) < 0) | |
100 | errs++; | |
101 | } | |
102 | ||
103 | if (did_checkout) { | |
104 | if (to_tempfile) | |
e414156a | 105 | write_tempfile_record(name, prefix_length); |
de84f99c | 106 | return errs > 0 ? -1 : 0; |
33db5f4d | 107 | } |
3bd348ae JH |
108 | |
109 | if (!state.quiet) { | |
110 | fprintf(stderr, "git-checkout-index: %s ", name); | |
111 | if (!has_same_name) | |
112 | fprintf(stderr, "is not in the cache"); | |
113 | else if (checkout_stage) | |
114 | fprintf(stderr, "does not exist at stage %d", | |
115 | checkout_stage); | |
116 | else | |
117 | fprintf(stderr, "is unmerged"); | |
118 | fputc('\n', stderr); | |
119 | } | |
120 | return -1; | |
33db5f4d LT |
121 | } |
122 | ||
f7f0fbfc | 123 | static void checkout_all(const char *prefix, int prefix_length) |
33db5f4d | 124 | { |
4b12dae6 | 125 | int i, errs = 0; |
5142db69 | 126 | struct cache_entry* last_ce = NULL; |
33db5f4d LT |
127 | |
128 | for (i = 0; i < active_nr ; i++) { | |
129 | struct cache_entry *ce = active_cache[i]; | |
de84f99c SP |
130 | if (ce_stage(ce) != checkout_stage |
131 | && (CHECKOUT_ALL != checkout_stage || !ce_stage(ce))) | |
d9f98eeb | 132 | continue; |
c3e9a653 | 133 | if (prefix && *prefix && |
3bd348ae JH |
134 | (ce_namelen(ce) <= prefix_length || |
135 | memcmp(prefix, ce->name, prefix_length))) | |
c3e9a653 | 136 | continue; |
de84f99c SP |
137 | if (last_ce && to_tempfile) { |
138 | if (ce_namelen(last_ce) != ce_namelen(ce) | |
139 | || memcmp(last_ce->name, ce->name, ce_namelen(ce))) | |
e414156a | 140 | write_tempfile_record(last_ce->name, prefix_length); |
de84f99c SP |
141 | } |
142 | if (checkout_entry(ce, &state, | |
143 | to_tempfile ? topath[ce_stage(ce)] : NULL) < 0) | |
4b12dae6 | 144 | errs++; |
de84f99c | 145 | last_ce = ce; |
33db5f4d | 146 | } |
de84f99c | 147 | if (last_ce && to_tempfile) |
e414156a | 148 | write_tempfile_record(last_ce->name, prefix_length); |
4b12dae6 JH |
149 | if (errs) |
150 | /* we have already done our error reporting. | |
151 | * exit with the same code as die(). | |
152 | */ | |
153 | exit(128); | |
33db5f4d LT |
154 | } |
155 | ||
4d1f1190 | 156 | static const char checkout_cache_usage[] = |
de84f99c | 157 | "git-checkout-index [-u] [-q] [-a] [-f] [-n] [--stage=[123]|all] [--prefix=<string>] [--temp] [--] <file>..."; |
d46ad9c9 | 158 | |
021b6e45 | 159 | static struct lock_file lock_file; |
31f584c2 | 160 | |
e414156a | 161 | int cmd_checkout_index(int argc, const char **argv, const char *prefix) |
33db5f4d | 162 | { |
a65a686f | 163 | int i; |
415e96c8 | 164 | int newfd = -1; |
a65a686f | 165 | int all = 0; |
9debe63d | 166 | int read_from_stdin = 0; |
e414156a | 167 | int prefix_length; |
33db5f4d | 168 | |
5f73076c | 169 | git_config(git_default_config); |
e414156a | 170 | state.base_dir = ""; |
c3e9a653 JH |
171 | prefix_length = prefix ? strlen(prefix) : 0; |
172 | ||
33db5f4d | 173 | if (read_cache() < 0) { |
2de381f9 | 174 | die("invalid cache"); |
33db5f4d LT |
175 | } |
176 | ||
177 | for (i = 1; i < argc; i++) { | |
178 | const char *arg = argv[i]; | |
a65a686f LT |
179 | |
180 | if (!strcmp(arg, "--")) { | |
181 | i++; | |
182 | break; | |
183 | } | |
184 | if (!strcmp(arg, "-a") || !strcmp(arg, "--all")) { | |
185 | all = 1; | |
186 | continue; | |
33db5f4d | 187 | } |
a65a686f LT |
188 | if (!strcmp(arg, "-f") || !strcmp(arg, "--force")) { |
189 | state.force = 1; | |
190 | continue; | |
33db5f4d | 191 | } |
a65a686f LT |
192 | if (!strcmp(arg, "-q") || !strcmp(arg, "--quiet")) { |
193 | state.quiet = 1; | |
194 | continue; | |
415e96c8 | 195 | } |
a65a686f LT |
196 | if (!strcmp(arg, "-n") || !strcmp(arg, "--no-create")) { |
197 | state.not_new = 1; | |
198 | continue; | |
199 | } | |
200 | if (!strcmp(arg, "-u") || !strcmp(arg, "--index")) { | |
201 | state.refresh_cache = 1; | |
202 | if (newfd < 0) | |
30ca07a2 | 203 | newfd = hold_locked_index(&lock_file, 1); |
a65a686f | 204 | continue; |
415e96c8 | 205 | } |
9debe63d SP |
206 | if (!strcmp(arg, "-z")) { |
207 | line_termination = 0; | |
208 | continue; | |
209 | } | |
210 | if (!strcmp(arg, "--stdin")) { | |
211 | if (i != argc - 1) | |
212 | die("--stdin must be at the end"); | |
213 | read_from_stdin = 1; | |
214 | i++; /* do not consider arg as a file name */ | |
215 | break; | |
216 | } | |
de84f99c SP |
217 | if (!strcmp(arg, "--temp")) { |
218 | to_tempfile = 1; | |
219 | continue; | |
220 | } | |
cc44c765 | 221 | if (!prefixcmp(arg, "--prefix=")) { |
a65a686f LT |
222 | state.base_dir = arg+9; |
223 | state.base_dir_len = strlen(state.base_dir); | |
224 | continue; | |
225 | } | |
cc44c765 | 226 | if (!prefixcmp(arg, "--stage=")) { |
de84f99c SP |
227 | if (!strcmp(arg + 8, "all")) { |
228 | to_tempfile = 1; | |
229 | checkout_stage = CHECKOUT_ALL; | |
230 | } else { | |
231 | int ch = arg[8]; | |
232 | if ('1' <= ch && ch <= '3') | |
233 | checkout_stage = arg[8] - '0'; | |
234 | else | |
235 | die("stage should be between 1 and 3 or all"); | |
236 | } | |
3bd348ae JH |
237 | continue; |
238 | } | |
a65a686f LT |
239 | if (arg[0] == '-') |
240 | usage(checkout_cache_usage); | |
241 | break; | |
242 | } | |
243 | ||
de84f99c | 244 | if (state.base_dir_len || to_tempfile) { |
a65a686f LT |
245 | /* when --prefix is specified we do not |
246 | * want to update cache. | |
247 | */ | |
248 | if (state.refresh_cache) { | |
021b6e45 | 249 | rollback_lock_file(&lock_file); |
4ed7cd3a | 250 | newfd = -1; |
a65a686f LT |
251 | } |
252 | state.refresh_cache = 0; | |
253 | } | |
254 | ||
255 | /* Check out named files first */ | |
256 | for ( ; i < argc; i++) { | |
257 | const char *arg = argv[i]; | |
dc46da22 | 258 | const char *p; |
a65a686f LT |
259 | |
260 | if (all) | |
261 | die("git-checkout-index: don't mix '--all' and explicit filenames"); | |
9debe63d SP |
262 | if (read_from_stdin) |
263 | die("git-checkout-index: don't mix '--stdin' and explicit filenames"); | |
dc46da22 | 264 | p = prefix_path(prefix, prefix_length, arg); |
e414156a | 265 | checkout_file(p, prefix_length); |
be65e7d9 | 266 | if (p < arg || p > arg + strlen(arg)) |
dc46da22 | 267 | free((char*)p); |
33db5f4d | 268 | } |
415e96c8 | 269 | |
9debe63d | 270 | if (read_from_stdin) { |
7fb1011e PH |
271 | struct strbuf buf, nbuf; |
272 | ||
9debe63d SP |
273 | if (all) |
274 | die("git-checkout-index: don't mix '--all' and '--stdin'"); | |
7fb1011e | 275 | |
f1696ee3 | 276 | strbuf_init(&buf, 0); |
7fb1011e PH |
277 | strbuf_init(&nbuf, 0); |
278 | while (strbuf_getline(&buf, stdin, line_termination) != EOF) { | |
dc46da22 | 279 | const char *p; |
7fb1011e PH |
280 | if (line_termination && buf.buf[0] == '"') { |
281 | strbuf_reset(&nbuf); | |
282 | if (unquote_c_style(&nbuf, buf.buf, NULL)) | |
283 | die("line is badly quoted"); | |
284 | strbuf_swap(&buf, &nbuf); | |
285 | } | |
286 | p = prefix_path(prefix, prefix_length, buf.buf); | |
e414156a | 287 | checkout_file(p, prefix_length); |
7fb1011e | 288 | if (p < buf.buf || p > buf.buf + buf.len) |
dc46da22 | 289 | free((char *)p); |
9debe63d | 290 | } |
7fb1011e | 291 | strbuf_release(&nbuf); |
e6c019d0 | 292 | strbuf_release(&buf); |
9debe63d SP |
293 | } |
294 | ||
a65a686f | 295 | if (all) |
e414156a | 296 | checkout_all(prefix, prefix_length); |
a65a686f | 297 | |
415e96c8 JH |
298 | if (0 <= newfd && |
299 | (write_cache(newfd, active_cache, active_nr) || | |
4ed7cd3a | 300 | commit_locked_index(&lock_file))) |
021b6e45 | 301 | die("Unable to write new index file"); |
33db5f4d LT |
302 | return 0; |
303 | } |