Code

c59b0c98fefefc413c8330715fffcc83142d5b2d
[git.git] / builtin / add.c
1 /*
2  * "git add" builtin command
3  *
4  * Copyright (C) 2006 Linus Torvalds
5  */
6 #include "cache.h"
7 #include "builtin.h"
8 #include "dir.h"
9 #include "exec_cmd.h"
10 #include "cache-tree.h"
11 #include "run-command.h"
12 #include "parse-options.h"
13 #include "diff.h"
14 #include "diffcore.h"
15 #include "revision.h"
17 static const char * const builtin_add_usage[] = {
18         "git add [options] [--] <filepattern>...",
19         NULL
20 };
21 static int patch_interactive, add_interactive, edit_interactive;
22 static int take_worktree_changes;
24 struct update_callback_data {
25         int flags;
26         int add_errors;
27 };
29 static int fix_unmerged_status(struct diff_filepair *p,
30                                struct update_callback_data *data)
31 {
32         if (p->status != DIFF_STATUS_UNMERGED)
33                 return p->status;
34         if (!(data->flags & ADD_CACHE_IGNORE_REMOVAL) && !p->two->mode)
35                 /*
36                  * This is not an explicit add request, and the
37                  * path is missing from the working tree (deleted)
38                  */
39                 return DIFF_STATUS_DELETED;
40         else
41                 /*
42                  * Either an explicit add request, or path exists
43                  * in the working tree.  An attempt to explicitly
44                  * add a path that does not exist in the working tree
45                  * will be caught as an error by the caller immediately.
46                  */
47                 return DIFF_STATUS_MODIFIED;
48 }
50 static void update_callback(struct diff_queue_struct *q,
51                             struct diff_options *opt, void *cbdata)
52 {
53         int i;
54         struct update_callback_data *data = cbdata;
56         for (i = 0; i < q->nr; i++) {
57                 struct diff_filepair *p = q->queue[i];
58                 const char *path = p->one->path;
59                 switch (fix_unmerged_status(p, data)) {
60                 default:
61                         die(_("unexpected diff status %c"), p->status);
62                 case DIFF_STATUS_MODIFIED:
63                 case DIFF_STATUS_TYPE_CHANGED:
64                         if (add_file_to_index(&the_index, path, data->flags)) {
65                                 if (!(data->flags & ADD_CACHE_IGNORE_ERRORS))
66                                         die(_("updating files failed"));
67                                 data->add_errors++;
68                         }
69                         break;
70                 case DIFF_STATUS_DELETED:
71                         if (data->flags & ADD_CACHE_IGNORE_REMOVAL)
72                                 break;
73                         if (!(data->flags & ADD_CACHE_PRETEND))
74                                 remove_file_from_index(&the_index, path);
75                         if (data->flags & (ADD_CACHE_PRETEND|ADD_CACHE_VERBOSE))
76                                 printf(_("remove '%s'\n"), path);
77                         break;
78                 }
79         }
80 }
82 int add_files_to_cache(const char *prefix, const char **pathspec, int flags)
83 {
84         struct update_callback_data data;
85         struct rev_info rev;
86         init_revisions(&rev, prefix);
87         setup_revisions(0, NULL, &rev, NULL);
88         init_pathspec(&rev.prune_data, pathspec);
89         rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
90         rev.diffopt.format_callback = update_callback;
91         data.flags = flags;
92         data.add_errors = 0;
93         rev.diffopt.format_callback_data = &data;
94         rev.max_count = 0; /* do not compare unmerged paths with stage #2 */
95         run_diff_files(&rev, DIFF_RACY_IS_MODIFIED);
96         return !!data.add_errors;
97 }
99 static void fill_pathspec_matches(const char **pathspec, char *seen, int specs)
101         int num_unmatched = 0, i;
103         /*
104          * Since we are walking the index as if we were walking the directory,
105          * we have to mark the matched pathspec as seen; otherwise we will
106          * mistakenly think that the user gave a pathspec that did not match
107          * anything.
108          */
109         for (i = 0; i < specs; i++)
110                 if (!seen[i])
111                         num_unmatched++;
112         if (!num_unmatched)
113                 return;
114         for (i = 0; i < active_nr; i++) {
115                 struct cache_entry *ce = active_cache[i];
116                 match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, seen);
117         }
120 static char *find_used_pathspec(const char **pathspec)
122         char *seen;
123         int i;
125         for (i = 0; pathspec[i];  i++)
126                 ; /* just counting */
127         seen = xcalloc(i, 1);
128         fill_pathspec_matches(pathspec, seen, i);
129         return seen;
132 static char *prune_directory(struct dir_struct *dir, const char **pathspec, int prefix)
134         char *seen;
135         int i, specs;
136         struct dir_entry **src, **dst;
138         for (specs = 0; pathspec[specs];  specs++)
139                 /* nothing */;
140         seen = xcalloc(specs, 1);
142         src = dst = dir->entries;
143         i = dir->nr;
144         while (--i >= 0) {
145                 struct dir_entry *entry = *src++;
146                 if (match_pathspec(pathspec, entry->name, entry->len,
147                                    prefix, seen))
148                         *dst++ = entry;
149         }
150         dir->nr = dst - dir->entries;
151         fill_pathspec_matches(pathspec, seen, specs);
152         return seen;
155 static void treat_gitlinks(const char **pathspec)
157         int i;
159         if (!pathspec || !*pathspec)
160                 return;
162         for (i = 0; i < active_nr; i++) {
163                 struct cache_entry *ce = active_cache[i];
164                 if (S_ISGITLINK(ce->ce_mode)) {
165                         int len = ce_namelen(ce), j;
166                         for (j = 0; pathspec[j]; j++) {
167                                 int len2 = strlen(pathspec[j]);
168                                 if (len2 <= len || pathspec[j][len] != '/' ||
169                                     memcmp(ce->name, pathspec[j], len))
170                                         continue;
171                                 if (len2 == len + 1)
172                                         /* strip trailing slash */
173                                         pathspec[j] = xstrndup(ce->name, len);
174                                 else
175                                         die (_("Path '%s' is in submodule '%.*s'"),
176                                                 pathspec[j], len, ce->name);
177                         }
178                 }
179         }
182 static void refresh(int verbose, const char **pathspec)
184         char *seen;
185         int i, specs;
187         for (specs = 0; pathspec[specs];  specs++)
188                 /* nothing */;
189         seen = xcalloc(specs, 1);
190         refresh_index(&the_index, verbose ? REFRESH_IN_PORCELAIN : REFRESH_QUIET,
191                       pathspec, seen, _("Unstaged changes after refreshing the index:"));
192         for (i = 0; i < specs; i++) {
193                 if (!seen[i])
194                         die(_("pathspec '%s' did not match any files"), pathspec[i]);
195         }
196         free(seen);
199 static const char **validate_pathspec(int argc, const char **argv, const char *prefix)
201         const char **pathspec = get_pathspec(prefix, argv);
203         if (pathspec) {
204                 const char **p;
205                 for (p = pathspec; *p; p++) {
206                         if (has_symlink_leading_path(*p, strlen(*p))) {
207                                 int len = prefix ? strlen(prefix) : 0;
208                                 die(_("'%s' is beyond a symbolic link"), *p + len);
209                         }
210                 }
211         }
213         return pathspec;
216 int run_add_interactive(const char *revision, const char *patch_mode,
217                         const char **pathspec)
219         int status, ac, pc = 0;
220         const char **args;
222         if (pathspec)
223                 while (pathspec[pc])
224                         pc++;
226         args = xcalloc(sizeof(const char *), (pc + 5));
227         ac = 0;
228         args[ac++] = "add--interactive";
229         if (patch_mode)
230                 args[ac++] = patch_mode;
231         if (revision)
232                 args[ac++] = revision;
233         args[ac++] = "--";
234         if (pc) {
235                 memcpy(&(args[ac]), pathspec, sizeof(const char *) * pc);
236                 ac += pc;
237         }
238         args[ac] = NULL;
240         status = run_command_v_opt(args, RUN_GIT_CMD);
241         free(args);
242         return status;
245 int interactive_add(int argc, const char **argv, const char *prefix, int patch)
247         const char **pathspec = NULL;
249         if (argc) {
250                 pathspec = validate_pathspec(argc, argv, prefix);
251                 if (!pathspec)
252                         return -1;
253         }
255         return run_add_interactive(NULL,
256                                    patch ? "--patch" : NULL,
257                                    pathspec);
260 static int edit_patch(int argc, const char **argv, const char *prefix)
262         char *file = xstrdup(git_path("ADD_EDIT.patch"));
263         const char *apply_argv[] = { "apply", "--recount", "--cached",
264                 NULL, NULL };
265         struct child_process child;
266         struct rev_info rev;
267         int out;
268         struct stat st;
270         apply_argv[3] = file;
272         git_config(git_diff_basic_config, NULL); /* no "diff" UI options */
274         if (read_cache() < 0)
275                 die (_("Could not read the index"));
277         init_revisions(&rev, prefix);
278         rev.diffopt.context = 7;
280         argc = setup_revisions(argc, argv, &rev, NULL);
281         rev.diffopt.output_format = DIFF_FORMAT_PATCH;
282         out = open(file, O_CREAT | O_WRONLY, 0644);
283         if (out < 0)
284                 die (_("Could not open '%s' for writing."), file);
285         rev.diffopt.file = xfdopen(out, "w");
286         rev.diffopt.close_file = 1;
287         if (run_diff_files(&rev, 0))
288                 die (_("Could not write patch"));
290         launch_editor(file, NULL, NULL);
292         if (stat(file, &st))
293                 die_errno(_("Could not stat '%s'"), file);
294         if (!st.st_size)
295                 die(_("Empty patch. Aborted."));
297         memset(&child, 0, sizeof(child));
298         child.git_cmd = 1;
299         child.argv = apply_argv;
300         if (run_command(&child))
301                 die (_("Could not apply '%s'"), file);
303         unlink(file);
304         return 0;
307 static struct lock_file lock_file;
309 static const char ignore_error[] =
310 N_("The following paths are ignored by one of your .gitignore files:\n");
312 static int verbose = 0, show_only = 0, ignored_too = 0, refresh_only = 0;
313 static int ignore_add_errors, addremove, intent_to_add, ignore_missing = 0;
315 static struct option builtin_add_options[] = {
316         OPT__DRY_RUN(&show_only, "dry run"),
317         OPT__VERBOSE(&verbose, "be verbose"),
318         OPT_GROUP(""),
319         OPT_BOOLEAN('i', "interactive", &add_interactive, "interactive picking"),
320         OPT_BOOLEAN('p', "patch", &patch_interactive, "select hunks interactively"),
321         OPT_BOOLEAN('e', "edit", &edit_interactive, "edit current diff and apply"),
322         OPT__FORCE(&ignored_too, "allow adding otherwise ignored files"),
323         OPT_BOOLEAN('u', "update", &take_worktree_changes, "update tracked files"),
324         OPT_BOOLEAN('N', "intent-to-add", &intent_to_add, "record only the fact that the path will be added later"),
325         OPT_BOOLEAN('A', "all", &addremove, "add changes from all tracked and untracked files"),
326         OPT_BOOLEAN( 0 , "refresh", &refresh_only, "don't add, only refresh the index"),
327         OPT_BOOLEAN( 0 , "ignore-errors", &ignore_add_errors, "just skip files which cannot be added because of errors"),
328         OPT_BOOLEAN( 0 , "ignore-missing", &ignore_missing, "check if - even missing - files are ignored in dry run"),
329         OPT_END(),
330 };
332 static int add_config(const char *var, const char *value, void *cb)
334         if (!strcmp(var, "add.ignoreerrors") ||
335             !strcmp(var, "add.ignore-errors")) {
336                 ignore_add_errors = git_config_bool(var, value);
337                 return 0;
338         }
339         return git_default_config(var, value, cb);
342 static int add_files(struct dir_struct *dir, int flags)
344         int i, exit_status = 0;
346         if (dir->ignored_nr) {
347                 fprintf(stderr, _(ignore_error));
348                 for (i = 0; i < dir->ignored_nr; i++)
349                         fprintf(stderr, "%s\n", dir->ignored[i]->name);
350                 fprintf(stderr, _("Use -f if you really want to add them.\n"));
351                 die(_("no files added"));
352         }
354         for (i = 0; i < dir->nr; i++)
355                 if (add_file_to_cache(dir->entries[i]->name, flags)) {
356                         if (!ignore_add_errors)
357                                 die(_("adding files failed"));
358                         exit_status = 1;
359                 }
360         return exit_status;
363 int cmd_add(int argc, const char **argv, const char *prefix)
365         int exit_status = 0;
366         int newfd;
367         const char **pathspec;
368         struct dir_struct dir;
369         int flags;
370         int add_new_files;
371         int require_pathspec;
372         char *seen = NULL;
374         git_config(add_config, NULL);
376         argc = parse_options(argc, argv, prefix, builtin_add_options,
377                           builtin_add_usage, PARSE_OPT_KEEP_ARGV0);
378         if (patch_interactive)
379                 add_interactive = 1;
380         if (add_interactive)
381                 exit(interactive_add(argc - 1, argv + 1, prefix, patch_interactive));
383         if (edit_interactive)
384                 return(edit_patch(argc, argv, prefix));
385         argc--;
386         argv++;
388         if (addremove && take_worktree_changes)
389                 die(_("-A and -u are mutually incompatible"));
390         if (!show_only && ignore_missing)
391                 die(_("Option --ignore-missing can only be used together with --dry-run"));
392         if ((addremove || take_worktree_changes) && !argc) {
393                 static const char *here[2] = { ".", NULL };
394                 argc = 1;
395                 argv = here;
396         }
398         add_new_files = !take_worktree_changes && !refresh_only;
399         require_pathspec = !take_worktree_changes;
401         newfd = hold_locked_index(&lock_file, 1);
403         flags = ((verbose ? ADD_CACHE_VERBOSE : 0) |
404                  (show_only ? ADD_CACHE_PRETEND : 0) |
405                  (intent_to_add ? ADD_CACHE_INTENT : 0) |
406                  (ignore_add_errors ? ADD_CACHE_IGNORE_ERRORS : 0) |
407                  (!(addremove || take_worktree_changes)
408                   ? ADD_CACHE_IGNORE_REMOVAL : 0));
410         if (require_pathspec && argc == 0) {
411                 fprintf(stderr, _("Nothing specified, nothing added.\n"));
412                 fprintf(stderr, _("Maybe you wanted to say 'git add .'?\n"));
413                 return 0;
414         }
415         pathspec = validate_pathspec(argc, argv, prefix);
417         if (read_cache() < 0)
418                 die(_("index file corrupt"));
419         treat_gitlinks(pathspec);
421         if (add_new_files) {
422                 int baselen;
424                 /* Set up the default git porcelain excludes */
425                 memset(&dir, 0, sizeof(dir));
426                 if (!ignored_too) {
427                         dir.flags |= DIR_COLLECT_IGNORED;
428                         setup_standard_excludes(&dir);
429                 }
431                 /* This picks up the paths that are not tracked */
432                 baselen = fill_directory(&dir, pathspec);
433                 if (pathspec)
434                         seen = prune_directory(&dir, pathspec, baselen);
435         }
437         if (refresh_only) {
438                 refresh(verbose, pathspec);
439                 goto finish;
440         }
442         if (pathspec) {
443                 int i;
444                 if (!seen)
445                         seen = find_used_pathspec(pathspec);
446                 for (i = 0; pathspec[i]; i++) {
447                         if (!seen[i] && pathspec[i][0]
448                             && !file_exists(pathspec[i])) {
449                                 if (ignore_missing) {
450                                         int dtype = DT_UNKNOWN;
451                                         if (excluded(&dir, pathspec[i], &dtype))
452                                                 dir_add_ignored(&dir, pathspec[i], strlen(pathspec[i]));
453                                 } else
454                                         die(_("pathspec '%s' did not match any files"),
455                                             pathspec[i]);
456                         }
457                 }
458                 free(seen);
459         }
461         exit_status |= add_files_to_cache(prefix, pathspec, flags);
463         if (add_new_files)
464                 exit_status |= add_files(&dir, flags);
466  finish:
467         if (active_cache_changed) {
468                 if (write_cache(newfd, active_cache, active_nr) ||
469                     commit_locked_index(&lock_file))
470                         die(_("Unable to write new index file"));
471         }
473         return exit_status;