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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 | */ | |
39 | #include "cache.h" | |
9debe63d SP |
40 | #include "strbuf.h" |
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'); | |
69 | write_name_quoted("", 0, name + prefix_length, | |
70 | line_termination, stdout); | |
71 | putchar(line_termination); | |
72 | ||
73 | for (i = 0; i < 4; i++) { | |
74 | topath[i][0] = 0; | |
75 | } | |
76 | } | |
77 | ||
e414156a | 78 | static int checkout_file(const char *name, int prefix_length) |
33db5f4d | 79 | { |
3bd348ae JH |
80 | int namelen = strlen(name); |
81 | int pos = cache_name_pos(name, namelen); | |
82 | int has_same_name = 0; | |
de84f99c SP |
83 | int did_checkout = 0; |
84 | int errs = 0; | |
3bd348ae JH |
85 | |
86 | if (pos < 0) | |
87 | pos = -pos - 1; | |
88 | ||
89 | while (pos < active_nr) { | |
90 | struct cache_entry *ce = active_cache[pos]; | |
f4f9adae | 91 | if (ce_namelen(ce) != namelen || |
3bd348ae JH |
92 | memcmp(ce->name, name, namelen)) |
93 | break; | |
94 | has_same_name = 1; | |
3bd348ae | 95 | pos++; |
de84f99c SP |
96 | if (ce_stage(ce) != checkout_stage |
97 | && (CHECKOUT_ALL != checkout_stage || !ce_stage(ce))) | |
98 | continue; | |
99 | did_checkout = 1; | |
100 | if (checkout_entry(ce, &state, | |
101 | to_tempfile ? topath[ce_stage(ce)] : NULL) < 0) | |
102 | errs++; | |
103 | } | |
104 | ||
105 | if (did_checkout) { | |
106 | if (to_tempfile) | |
e414156a | 107 | write_tempfile_record(name, prefix_length); |
de84f99c | 108 | return errs > 0 ? -1 : 0; |
33db5f4d | 109 | } |
3bd348ae JH |
110 | |
111 | if (!state.quiet) { | |
112 | fprintf(stderr, "git-checkout-index: %s ", name); | |
113 | if (!has_same_name) | |
114 | fprintf(stderr, "is not in the cache"); | |
115 | else if (checkout_stage) | |
116 | fprintf(stderr, "does not exist at stage %d", | |
117 | checkout_stage); | |
118 | else | |
119 | fprintf(stderr, "is unmerged"); | |
120 | fputc('\n', stderr); | |
121 | } | |
122 | return -1; | |
33db5f4d LT |
123 | } |
124 | ||
f7f0fbfc | 125 | static void checkout_all(const char *prefix, int prefix_length) |
33db5f4d | 126 | { |
4b12dae6 | 127 | int i, errs = 0; |
5142db69 | 128 | struct cache_entry* last_ce = NULL; |
33db5f4d LT |
129 | |
130 | for (i = 0; i < active_nr ; i++) { | |
131 | struct cache_entry *ce = active_cache[i]; | |
de84f99c SP |
132 | if (ce_stage(ce) != checkout_stage |
133 | && (CHECKOUT_ALL != checkout_stage || !ce_stage(ce))) | |
d9f98eeb | 134 | continue; |
c3e9a653 | 135 | if (prefix && *prefix && |
3bd348ae JH |
136 | (ce_namelen(ce) <= prefix_length || |
137 | memcmp(prefix, ce->name, prefix_length))) | |
c3e9a653 | 138 | continue; |
de84f99c SP |
139 | if (last_ce && to_tempfile) { |
140 | if (ce_namelen(last_ce) != ce_namelen(ce) | |
141 | || memcmp(last_ce->name, ce->name, ce_namelen(ce))) | |
e414156a | 142 | write_tempfile_record(last_ce->name, prefix_length); |
de84f99c SP |
143 | } |
144 | if (checkout_entry(ce, &state, | |
145 | to_tempfile ? topath[ce_stage(ce)] : NULL) < 0) | |
4b12dae6 | 146 | errs++; |
de84f99c | 147 | last_ce = ce; |
33db5f4d | 148 | } |
de84f99c | 149 | if (last_ce && to_tempfile) |
e414156a | 150 | write_tempfile_record(last_ce->name, prefix_length); |
4b12dae6 JH |
151 | if (errs) |
152 | /* we have already done our error reporting. | |
153 | * exit with the same code as die(). | |
154 | */ | |
155 | exit(128); | |
33db5f4d LT |
156 | } |
157 | ||
4d1f1190 | 158 | static const char checkout_cache_usage[] = |
de84f99c | 159 | "git-checkout-index [-u] [-q] [-a] [-f] [-n] [--stage=[123]|all] [--prefix=<string>] [--temp] [--] <file>..."; |
d46ad9c9 | 160 | |
021b6e45 | 161 | static struct lock_file lock_file; |
31f584c2 | 162 | |
e414156a | 163 | int cmd_checkout_index(int argc, const char **argv, const char *prefix) |
33db5f4d | 164 | { |
a65a686f | 165 | int i; |
415e96c8 | 166 | int newfd = -1; |
a65a686f | 167 | int all = 0; |
9debe63d | 168 | int read_from_stdin = 0; |
e414156a | 169 | int prefix_length; |
33db5f4d | 170 | |
5f73076c | 171 | git_config(git_default_config); |
e414156a | 172 | state.base_dir = ""; |
c3e9a653 JH |
173 | prefix_length = prefix ? strlen(prefix) : 0; |
174 | ||
33db5f4d | 175 | if (read_cache() < 0) { |
2de381f9 | 176 | die("invalid cache"); |
33db5f4d LT |
177 | } |
178 | ||
179 | for (i = 1; i < argc; i++) { | |
180 | const char *arg = argv[i]; | |
a65a686f LT |
181 | |
182 | if (!strcmp(arg, "--")) { | |
183 | i++; | |
184 | break; | |
185 | } | |
186 | if (!strcmp(arg, "-a") || !strcmp(arg, "--all")) { | |
187 | all = 1; | |
188 | continue; | |
33db5f4d | 189 | } |
a65a686f LT |
190 | if (!strcmp(arg, "-f") || !strcmp(arg, "--force")) { |
191 | state.force = 1; | |
192 | continue; | |
33db5f4d | 193 | } |
a65a686f LT |
194 | if (!strcmp(arg, "-q") || !strcmp(arg, "--quiet")) { |
195 | state.quiet = 1; | |
196 | continue; | |
415e96c8 | 197 | } |
a65a686f LT |
198 | if (!strcmp(arg, "-n") || !strcmp(arg, "--no-create")) { |
199 | state.not_new = 1; | |
200 | continue; | |
201 | } | |
202 | if (!strcmp(arg, "-u") || !strcmp(arg, "--index")) { | |
203 | state.refresh_cache = 1; | |
204 | if (newfd < 0) | |
021b6e45 | 205 | newfd = hold_lock_file_for_update |
40aaae88 | 206 | (&lock_file, get_index_file(), 1); |
a65a686f LT |
207 | if (newfd < 0) |
208 | die("cannot open index.lock file."); | |
209 | continue; | |
415e96c8 | 210 | } |
9debe63d SP |
211 | if (!strcmp(arg, "-z")) { |
212 | line_termination = 0; | |
213 | continue; | |
214 | } | |
215 | if (!strcmp(arg, "--stdin")) { | |
216 | if (i != argc - 1) | |
217 | die("--stdin must be at the end"); | |
218 | read_from_stdin = 1; | |
219 | i++; /* do not consider arg as a file name */ | |
220 | break; | |
221 | } | |
de84f99c SP |
222 | if (!strcmp(arg, "--temp")) { |
223 | to_tempfile = 1; | |
224 | continue; | |
225 | } | |
3bd348ae | 226 | if (!strncmp(arg, "--prefix=", 9)) { |
a65a686f LT |
227 | state.base_dir = arg+9; |
228 | state.base_dir_len = strlen(state.base_dir); | |
229 | continue; | |
230 | } | |
3bd348ae | 231 | if (!strncmp(arg, "--stage=", 8)) { |
de84f99c SP |
232 | if (!strcmp(arg + 8, "all")) { |
233 | to_tempfile = 1; | |
234 | checkout_stage = CHECKOUT_ALL; | |
235 | } else { | |
236 | int ch = arg[8]; | |
237 | if ('1' <= ch && ch <= '3') | |
238 | checkout_stage = arg[8] - '0'; | |
239 | else | |
240 | die("stage should be between 1 and 3 or all"); | |
241 | } | |
3bd348ae JH |
242 | continue; |
243 | } | |
a65a686f LT |
244 | if (arg[0] == '-') |
245 | usage(checkout_cache_usage); | |
246 | break; | |
247 | } | |
248 | ||
de84f99c | 249 | if (state.base_dir_len || to_tempfile) { |
a65a686f LT |
250 | /* when --prefix is specified we do not |
251 | * want to update cache. | |
252 | */ | |
253 | if (state.refresh_cache) { | |
254 | close(newfd); newfd = -1; | |
021b6e45 | 255 | rollback_lock_file(&lock_file); |
a65a686f LT |
256 | } |
257 | state.refresh_cache = 0; | |
258 | } | |
259 | ||
260 | /* Check out named files first */ | |
261 | for ( ; i < argc; i++) { | |
262 | const char *arg = argv[i]; | |
dc46da22 | 263 | const char *p; |
a65a686f LT |
264 | |
265 | if (all) | |
266 | die("git-checkout-index: don't mix '--all' and explicit filenames"); | |
9debe63d SP |
267 | if (read_from_stdin) |
268 | die("git-checkout-index: don't mix '--stdin' and explicit filenames"); | |
dc46da22 | 269 | p = prefix_path(prefix, prefix_length, arg); |
e414156a | 270 | checkout_file(p, prefix_length); |
be65e7d9 | 271 | if (p < arg || p > arg + strlen(arg)) |
dc46da22 | 272 | free((char*)p); |
33db5f4d | 273 | } |
415e96c8 | 274 | |
9debe63d SP |
275 | if (read_from_stdin) { |
276 | struct strbuf buf; | |
277 | if (all) | |
278 | die("git-checkout-index: don't mix '--all' and '--stdin'"); | |
279 | strbuf_init(&buf); | |
280 | while (1) { | |
281 | char *path_name; | |
dc46da22 JH |
282 | const char *p; |
283 | ||
9debe63d SP |
284 | read_line(&buf, stdin, line_termination); |
285 | if (buf.eof) | |
286 | break; | |
287 | if (line_termination && buf.buf[0] == '"') | |
288 | path_name = unquote_c_style(buf.buf, NULL); | |
289 | else | |
290 | path_name = buf.buf; | |
dc46da22 | 291 | p = prefix_path(prefix, prefix_length, path_name); |
e414156a | 292 | checkout_file(p, prefix_length); |
be65e7d9 | 293 | if (p < path_name || p > path_name + strlen(path_name)) |
dc46da22 | 294 | free((char *)p); |
9debe63d SP |
295 | if (path_name != buf.buf) |
296 | free(path_name); | |
297 | } | |
298 | } | |
299 | ||
a65a686f | 300 | if (all) |
e414156a | 301 | checkout_all(prefix, prefix_length); |
a65a686f | 302 | |
415e96c8 JH |
303 | if (0 <= newfd && |
304 | (write_cache(newfd, active_cache, active_nr) || | |
6244b249 | 305 | close(newfd) || commit_lock_file(&lock_file))) |
021b6e45 | 306 | die("Unable to write new index file"); |
33db5f4d LT |
307 | return 0; |
308 | } |