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Commit | Line | Data |
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11be42a4 JS |
1 | /* |
2 | * "git mv" builtin command | |
3 | * | |
4 | * Copyright (C) 2006 Johannes Schindelin | |
5 | */ | |
11be42a4 JS |
6 | #include "cache.h" |
7 | #include "builtin.h" | |
8 | #include "dir.h" | |
9 | #include "cache-tree.h" | |
10 | #include "path-list.h" | |
c7a20c11 | 11 | #include "parse-options.h" |
11be42a4 | 12 | |
c7a20c11 PH |
13 | static const char * const builtin_mv_usage[] = { |
14 | "git-mv [options] <source>... <destination>", | |
15 | NULL | |
16 | }; | |
11be42a4 JS |
17 | |
18 | static const char **copy_pathspec(const char *prefix, const char **pathspec, | |
19 | int count, int base_name) | |
20 | { | |
d78b0f3d | 21 | int i; |
11be42a4 JS |
22 | const char **result = xmalloc((count + 1) * sizeof(const char *)); |
23 | memcpy(result, pathspec, count * sizeof(const char *)); | |
24 | result[count] = NULL; | |
d78b0f3d JS |
25 | for (i = 0; i < count; i++) { |
26 | int length = strlen(result[i]); | |
27 | if (length > 0 && result[i][length - 1] == '/') { | |
182af834 | 28 | result[i] = xmemdupz(result[i], length - 1); |
d78b0f3d JS |
29 | } |
30 | if (base_name) { | |
11be42a4 JS |
31 | const char *last_slash = strrchr(result[i], '/'); |
32 | if (last_slash) | |
33 | result[i] = last_slash + 1; | |
34 | } | |
35 | } | |
971dfa19 | 36 | return get_pathspec(prefix, result); |
11be42a4 JS |
37 | } |
38 | ||
39 | static void show_list(const char *label, struct path_list *list) | |
40 | { | |
41 | if (list->nr > 0) { | |
42 | int i; | |
43 | printf("%s", label); | |
44 | for (i = 0; i < list->nr; i++) | |
45 | printf("%s%s", i > 0 ? ", " : "", list->items[i].path); | |
46 | putchar('\n'); | |
47 | } | |
48 | } | |
49 | ||
ac64a722 JS |
50 | static const char *add_slash(const char *path) |
51 | { | |
52 | int len = strlen(path); | |
53 | if (path[len - 1] != '/') { | |
54 | char *with_slash = xmalloc(len + 2); | |
55 | memcpy(with_slash, path, len); | |
329a3047 JH |
56 | with_slash[len++] = '/'; |
57 | with_slash[len] = 0; | |
ac64a722 JS |
58 | return with_slash; |
59 | } | |
60 | return path; | |
61 | } | |
62 | ||
11be42a4 JS |
63 | static struct lock_file lock_file; |
64 | ||
7061cf0f | 65 | int cmd_mv(int argc, const char **argv, const char *prefix) |
11be42a4 | 66 | { |
c7a20c11 | 67 | int i, newfd; |
11be42a4 | 68 | int verbose = 0, show_only = 0, force = 0, ignore_errors = 0; |
c7a20c11 PH |
69 | struct option builtin_mv_options[] = { |
70 | OPT__DRY_RUN(&show_only), | |
71 | OPT_BOOLEAN('f', NULL, &force, "force move/rename even if target exists"), | |
72 | OPT_BOOLEAN('k', NULL, &ignore_errors, "skip move/rename errors"), | |
73 | OPT_END(), | |
74 | }; | |
11be42a4 | 75 | const char **source, **destination, **dest_path; |
ac64a722 | 76 | enum update_mode { BOTH = 0, WORKING_DIRECTORY, INDEX } *modes; |
11be42a4 JS |
77 | struct stat st; |
78 | struct path_list overwritten = {NULL, 0, 0, 0}; | |
79 | struct path_list src_for_dst = {NULL, 0, 0, 0}; | |
80 | struct path_list added = {NULL, 0, 0, 0}; | |
81 | struct path_list deleted = {NULL, 0, 0, 0}; | |
82 | struct path_list changed = {NULL, 0, 0, 0}; | |
83 | ||
ef90d6d4 | 84 | git_config(git_default_config, NULL); |
11be42a4 | 85 | |
30ca07a2 | 86 | newfd = hold_locked_index(&lock_file, 1); |
11be42a4 JS |
87 | if (read_cache() < 0) |
88 | die("index file corrupt"); | |
89 | ||
c7a20c11 PH |
90 | argc = parse_options(argc, argv, builtin_mv_options, builtin_mv_usage, 0); |
91 | if (--argc < 1) | |
92 | usage_with_options(builtin_mv_usage, builtin_mv_options); | |
11be42a4 | 93 | |
c7a20c11 PH |
94 | source = copy_pathspec(prefix, argv, argc, 0); |
95 | modes = xcalloc(argc, sizeof(enum update_mode)); | |
96 | dest_path = copy_pathspec(prefix, argv + argc, 1, 0); | |
11be42a4 | 97 | |
c5203bdf JS |
98 | if (dest_path[0][0] == '\0') |
99 | /* special case: "." was normalized to "" */ | |
c7a20c11 | 100 | destination = copy_pathspec(dest_path[0], argv, argc, 1); |
c5203bdf | 101 | else if (!lstat(dest_path[0], &st) && |
ac64a722 JS |
102 | S_ISDIR(st.st_mode)) { |
103 | dest_path[0] = add_slash(dest_path[0]); | |
c7a20c11 | 104 | destination = copy_pathspec(dest_path[0], argv, argc, 1); |
ac64a722 | 105 | } else { |
c7a20c11 PH |
106 | if (argc != 1) |
107 | usage_with_options(builtin_mv_usage, builtin_mv_options); | |
11be42a4 JS |
108 | destination = dest_path; |
109 | } | |
110 | ||
111 | /* Checking */ | |
c7a20c11 | 112 | for (i = 0; i < argc; i++) { |
60a6bf5f JS |
113 | const char *src = source[i], *dst = destination[i]; |
114 | int length, src_is_dir; | |
11be42a4 JS |
115 | const char *bad = NULL; |
116 | ||
117 | if (show_only) | |
60a6bf5f | 118 | printf("Checking rename of '%s' to '%s'\n", src, dst); |
11be42a4 | 119 | |
60a6bf5f JS |
120 | length = strlen(src); |
121 | if (lstat(src, &st) < 0) | |
11be42a4 | 122 | bad = "bad source"; |
60a6bf5f JS |
123 | else if (!strncmp(src, dst, length) && |
124 | (dst[length] == 0 || dst[length] == '/')) { | |
d78b0f3d | 125 | bad = "can not move directory into itself"; |
60a6bf5f JS |
126 | } else if ((src_is_dir = S_ISDIR(st.st_mode)) |
127 | && lstat(dst, &st) == 0) | |
128 | bad = "cannot move directory over file"; | |
129 | else if (src_is_dir) { | |
aca085e5 JS |
130 | const char *src_w_slash = add_slash(src); |
131 | int len_w_slash = length + 1; | |
60a6bf5f | 132 | int first, last; |
ac64a722 JS |
133 | |
134 | modes[i] = WORKING_DIRECTORY; | |
135 | ||
aca085e5 | 136 | first = cache_name_pos(src_w_slash, len_w_slash); |
ac64a722 | 137 | if (first >= 0) |
aca085e5 JS |
138 | die ("Huh? %.*s is in index?", |
139 | len_w_slash, src_w_slash); | |
ac64a722 JS |
140 | |
141 | first = -1 - first; | |
142 | for (last = first; last < active_nr; last++) { | |
143 | const char *path = active_cache[last]->name; | |
aca085e5 | 144 | if (strncmp(path, src_w_slash, len_w_slash)) |
ac64a722 JS |
145 | break; |
146 | } | |
aca085e5 | 147 | free((char *)src_w_slash); |
ac64a722 JS |
148 | |
149 | if (last - first < 1) | |
150 | bad = "source directory is empty"; | |
60a6bf5f JS |
151 | else { |
152 | int j, dst_len; | |
ac64a722 JS |
153 | |
154 | if (last - first > 0) { | |
83572c1a | 155 | source = xrealloc(source, |
c7a20c11 | 156 | (argc + last - first) |
ac64a722 | 157 | * sizeof(char *)); |
83572c1a | 158 | destination = xrealloc(destination, |
c7a20c11 | 159 | (argc + last - first) |
ac64a722 | 160 | * sizeof(char *)); |
83572c1a | 161 | modes = xrealloc(modes, |
c7a20c11 | 162 | (argc + last - first) |
ac64a722 JS |
163 | * sizeof(enum update_mode)); |
164 | } | |
165 | ||
60a6bf5f | 166 | dst = add_slash(dst); |
d089ebaa | 167 | dst_len = strlen(dst); |
ac64a722 JS |
168 | |
169 | for (j = 0; j < last - first; j++) { | |
170 | const char *path = | |
171 | active_cache[first + j]->name; | |
c7a20c11 PH |
172 | source[argc + j] = path; |
173 | destination[argc + j] = | |
60a6bf5f | 174 | prefix_path(dst, dst_len, |
d089ebaa | 175 | path + length + 1); |
c7a20c11 | 176 | modes[argc + j] = INDEX; |
ac64a722 | 177 | } |
c7a20c11 | 178 | argc += last - first; |
ac64a722 | 179 | } |
60a6bf5f | 180 | } else if (lstat(dst, &st) == 0) { |
11be42a4 JS |
181 | bad = "destination exists"; |
182 | if (force) { | |
183 | /* | |
184 | * only files can overwrite each other: | |
185 | * check both source and destination | |
186 | */ | |
187 | if (S_ISREG(st.st_mode)) { | |
188 | fprintf(stderr, "Warning: %s;" | |
189 | " will overwrite!\n", | |
190 | bad); | |
191 | bad = NULL; | |
60a6bf5f | 192 | path_list_insert(dst, &overwritten); |
11be42a4 JS |
193 | } else |
194 | bad = "Cannot overwrite"; | |
195 | } | |
60a6bf5f | 196 | } else if (cache_name_pos(src, length) < 0) |
11be42a4 | 197 | bad = "not under version control"; |
60a6bf5f JS |
198 | else if (path_list_has_path(&src_for_dst, dst)) |
199 | bad = "multiple sources for the same target"; | |
200 | else | |
201 | path_list_insert(dst, &src_for_dst); | |
11be42a4 | 202 | |
11be42a4 JS |
203 | if (bad) { |
204 | if (ignore_errors) { | |
c7a20c11 | 205 | if (--argc > 0) { |
11be42a4 | 206 | memmove(source + i, source + i + 1, |
c7a20c11 | 207 | (argc - i) * sizeof(char *)); |
11be42a4 JS |
208 | memmove(destination + i, |
209 | destination + i + 1, | |
c7a20c11 | 210 | (argc - i) * sizeof(char *)); |
11be42a4 JS |
211 | } |
212 | } else | |
ac64a722 | 213 | die ("%s, source=%s, destination=%s", |
60a6bf5f | 214 | bad, src, dst); |
11be42a4 JS |
215 | } |
216 | } | |
217 | ||
c7a20c11 | 218 | for (i = 0; i < argc; i++) { |
60a6bf5f JS |
219 | const char *src = source[i], *dst = destination[i]; |
220 | enum update_mode mode = modes[i]; | |
11be42a4 | 221 | if (show_only || verbose) |
60a6bf5f JS |
222 | printf("Renaming %s to %s\n", src, dst); |
223 | if (!show_only && mode != INDEX && | |
224 | rename(src, dst) < 0 && !ignore_errors) | |
225 | die ("renaming %s failed: %s", src, strerror(errno)); | |
226 | ||
227 | if (mode == WORKING_DIRECTORY) | |
ac64a722 JS |
228 | continue; |
229 | ||
60a6bf5f JS |
230 | if (cache_name_pos(src, strlen(src)) >= 0) { |
231 | path_list_insert(src, &deleted); | |
11be42a4 JS |
232 | |
233 | /* destination can be a directory with 1 file inside */ | |
60a6bf5f JS |
234 | if (path_list_has_path(&overwritten, dst)) |
235 | path_list_insert(dst, &changed); | |
11be42a4 | 236 | else |
60a6bf5f | 237 | path_list_insert(dst, &added); |
11be42a4 | 238 | } else |
60a6bf5f | 239 | path_list_insert(dst, &added); |
11be42a4 JS |
240 | } |
241 | ||
c7a20c11 | 242 | if (show_only) { |
11be42a4 JS |
243 | show_list("Changed : ", &changed); |
244 | show_list("Adding : ", &added); | |
245 | show_list("Deleting : ", &deleted); | |
246 | } else { | |
247 | for (i = 0; i < changed.nr; i++) { | |
248 | const char *path = changed.items[i].path; | |
d828f6dd PH |
249 | int j = cache_name_pos(path, strlen(path)); |
250 | struct cache_entry *ce = active_cache[j]; | |
11be42a4 | 251 | |
d828f6dd | 252 | if (j < 0) |
11be42a4 JS |
253 | die ("Huh? Cache entry for %s unknown?", path); |
254 | refresh_cache_entry(ce, 0); | |
255 | } | |
256 | ||
257 | for (i = 0; i < added.nr; i++) { | |
258 | const char *path = added.items[i].path; | |
01665924 | 259 | if (add_file_to_cache(path, verbose ? ADD_CACHE_VERBOSE : 0)) |
960b8ad1 | 260 | die("updating index entries failed"); |
11be42a4 JS |
261 | } |
262 | ||
09d5dc32 JH |
263 | for (i = 0; i < deleted.nr; i++) |
264 | remove_file_from_cache(deleted.items[i].path); | |
11be42a4 JS |
265 | |
266 | if (active_cache_changed) { | |
267 | if (write_cache(newfd, active_cache, active_nr) || | |
30ca07a2 | 268 | commit_locked_index(&lock_file)) |
11be42a4 JS |
269 | die("Unable to write new index file"); |
270 | } | |
271 | } | |
272 | ||
273 | return 0; | |
274 | } |