git-commit: initialize TMP_INDEX just to be sure.
[alt-git.git] / builtin-add.c
blob3d8b8b4f89514e0a8f7af1c2c7dc2f8ae372129e
1 /*
2 * "git add" builtin command
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 "diff.h"
12 #include "diffcore.h"
13 #include "commit.h"
14 #include "revision.h"
16 static const char builtin_add_usage[] =
17 "git-add [-n] [-v] [-f] [--interactive | -i] [-u] [--refresh] [--] <filepattern>...";
19 static int take_worktree_changes;
20 static const char *excludes_file;
22 static void prune_directory(struct dir_struct *dir, const char **pathspec, int prefix)
24 char *seen;
25 int i, specs;
26 struct dir_entry **src, **dst;
28 for (specs = 0; pathspec[specs]; specs++)
29 /* nothing */;
30 seen = xcalloc(specs, 1);
32 src = dst = dir->entries;
33 i = dir->nr;
34 while (--i >= 0) {
35 struct dir_entry *entry = *src++;
36 if (match_pathspec(pathspec, entry->name, entry->len,
37 prefix, seen))
38 *dst++ = entry;
40 dir->nr = dst - dir->entries;
42 for (i = 0; i < specs; i++) {
43 if (!seen[i] && !file_exists(pathspec[i]))
44 die("pathspec '%s' did not match any files",
45 pathspec[i]);
49 static void fill_directory(struct dir_struct *dir, const char **pathspec,
50 int ignored_too)
52 const char *path, *base;
53 int baselen;
55 /* Set up the default git porcelain excludes */
56 memset(dir, 0, sizeof(*dir));
57 if (!ignored_too) {
58 dir->collect_ignored = 1;
59 dir->exclude_per_dir = ".gitignore";
60 path = git_path("info/exclude");
61 if (!access(path, R_OK))
62 add_excludes_from_file(dir, path);
63 if (excludes_file != NULL && !access(excludes_file, R_OK))
64 add_excludes_from_file(dir, excludes_file);
68 * Calculate common prefix for the pathspec, and
69 * use that to optimize the directory walk
71 baselen = common_prefix(pathspec);
72 path = ".";
73 base = "";
74 if (baselen) {
75 char *common = xmalloc(baselen + 1);
76 memcpy(common, *pathspec, baselen);
77 common[baselen] = 0;
78 path = base = common;
81 /* Read the directory and prune it */
82 read_directory(dir, path, base, baselen, pathspec);
83 if (pathspec)
84 prune_directory(dir, pathspec, baselen);
87 static void update_callback(struct diff_queue_struct *q,
88 struct diff_options *opt, void *cbdata)
90 int i, verbose;
92 verbose = *((int *)cbdata);
93 for (i = 0; i < q->nr; i++) {
94 struct diff_filepair *p = q->queue[i];
95 const char *path = p->one->path;
96 switch (p->status) {
97 default:
98 die("unexpected diff status %c", p->status);
99 case DIFF_STATUS_UNMERGED:
100 case DIFF_STATUS_MODIFIED:
101 case DIFF_STATUS_TYPE_CHANGED:
102 add_file_to_cache(path, verbose);
103 break;
104 case DIFF_STATUS_DELETED:
105 remove_file_from_cache(path);
106 cache_tree_invalidate_path(active_cache_tree, path);
107 if (verbose)
108 printf("remove '%s'\n", path);
109 break;
114 static void update(int verbose, const char *prefix, const char **files)
116 struct rev_info rev;
117 init_revisions(&rev, prefix);
118 setup_revisions(0, NULL, &rev, NULL);
119 rev.prune_data = get_pathspec(prefix, files);
120 rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
121 rev.diffopt.format_callback = update_callback;
122 rev.diffopt.format_callback_data = &verbose;
123 if (read_cache() < 0)
124 die("index file corrupt");
125 run_diff_files(&rev, 0);
128 static void refresh(int verbose, const char **pathspec)
130 char *seen;
131 int i, specs;
133 for (specs = 0; pathspec[specs]; specs++)
134 /* nothing */;
135 seen = xcalloc(specs, 1);
136 if (read_cache() < 0)
137 die("index file corrupt");
138 refresh_index(&the_index, verbose ? 0 : REFRESH_QUIET, pathspec, seen);
139 for (i = 0; i < specs; i++) {
140 if (!seen[i])
141 die("pathspec '%s' did not match any files", pathspec[i]);
145 static int git_add_config(const char *var, const char *value)
147 if (!strcmp(var, "core.excludesfile")) {
148 if (!value)
149 die("core.excludesfile without value");
150 excludes_file = xstrdup(value);
151 return 0;
154 return git_default_config(var, value);
157 static struct lock_file lock_file;
159 static const char ignore_error[] =
160 "The following paths are ignored by one of your .gitignore files:\n";
162 int cmd_add(int argc, const char **argv, const char *prefix)
164 int i, newfd;
165 int verbose = 0, show_only = 0, ignored_too = 0, refresh_only = 0;
166 const char **pathspec;
167 struct dir_struct dir;
168 int add_interactive = 0;
170 for (i = 1; i < argc; i++) {
171 if (!strcmp("--interactive", argv[i]) ||
172 !strcmp("-i", argv[i]))
173 add_interactive++;
175 if (add_interactive) {
176 const char *args[] = { "add--interactive", NULL };
178 if (add_interactive != 1 || argc != 2)
179 die("add --interactive does not take any parameters");
180 execv_git_cmd(args);
181 exit(1);
184 git_config(git_add_config);
186 newfd = hold_locked_index(&lock_file, 1);
188 for (i = 1; i < argc; i++) {
189 const char *arg = argv[i];
191 if (arg[0] != '-')
192 break;
193 if (!strcmp(arg, "--")) {
194 i++;
195 break;
197 if (!strcmp(arg, "-n")) {
198 show_only = 1;
199 continue;
201 if (!strcmp(arg, "-f")) {
202 ignored_too = 1;
203 continue;
205 if (!strcmp(arg, "-v")) {
206 verbose = 1;
207 continue;
209 if (!strcmp(arg, "-u")) {
210 take_worktree_changes = 1;
211 continue;
213 if (!strcmp(arg, "--refresh")) {
214 refresh_only = 1;
215 continue;
217 usage(builtin_add_usage);
220 if (take_worktree_changes) {
221 update(verbose, prefix, argv + i);
222 goto finish;
225 if (argc <= i) {
226 fprintf(stderr, "Nothing specified, nothing added.\n");
227 fprintf(stderr, "Maybe you wanted to say 'git add .'?\n");
228 return 0;
230 pathspec = get_pathspec(prefix, argv + i);
232 if (refresh_only) {
233 refresh(verbose, pathspec);
234 goto finish;
237 fill_directory(&dir, pathspec, ignored_too);
239 if (show_only) {
240 const char *sep = "", *eof = "";
241 for (i = 0; i < dir.nr; i++) {
242 printf("%s%s", sep, dir.entries[i]->name);
243 sep = " ";
244 eof = "\n";
246 fputs(eof, stdout);
247 return 0;
250 if (read_cache() < 0)
251 die("index file corrupt");
253 if (dir.ignored_nr) {
254 fprintf(stderr, ignore_error);
255 for (i = 0; i < dir.ignored_nr; i++) {
256 fprintf(stderr, "%s\n", dir.ignored[i]->name);
258 fprintf(stderr, "Use -f if you really want to add them.\n");
259 die("no files added");
262 for (i = 0; i < dir.nr; i++)
263 add_file_to_cache(dir.entries[i]->name, verbose);
265 finish:
266 if (active_cache_changed) {
267 if (write_cache(newfd, active_cache, active_nr) ||
268 close(newfd) || commit_locked_index(&lock_file))
269 die("Unable to write new index file");
272 return 0;