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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" | |
11 | ||
12 | static const char builtin_mv_usage[] = | |
13 | "git-mv [-n] [-f] (<source> <destination> | [-k] <source>... <destination>)"; | |
14 | ||
15 | static const char **copy_pathspec(const char *prefix, const char **pathspec, | |
16 | int count, int base_name) | |
17 | { | |
d78b0f3d | 18 | int i; |
11be42a4 JS |
19 | const char **result = xmalloc((count + 1) * sizeof(const char *)); |
20 | memcpy(result, pathspec, count * sizeof(const char *)); | |
21 | result[count] = NULL; | |
d78b0f3d JS |
22 | for (i = 0; i < count; i++) { |
23 | int length = strlen(result[i]); | |
24 | if (length > 0 && result[i][length - 1] == '/') { | |
25 | char *without_slash = xmalloc(length); | |
26 | memcpy(without_slash, result[i], length - 1); | |
6e17886d | 27 | without_slash[length - 1] = '\0'; |
d78b0f3d JS |
28 | result[i] = without_slash; |
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 | } | |
36 | return get_pathspec(prefix, result); | |
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 JS |
66 | { |
67 | int i, newfd, count; | |
68 | int verbose = 0, show_only = 0, force = 0, ignore_errors = 0; | |
11be42a4 | 69 | const char **source, **destination, **dest_path; |
ac64a722 | 70 | enum update_mode { BOTH = 0, WORKING_DIRECTORY, INDEX } *modes; |
11be42a4 JS |
71 | struct stat st; |
72 | struct path_list overwritten = {NULL, 0, 0, 0}; | |
73 | struct path_list src_for_dst = {NULL, 0, 0, 0}; | |
74 | struct path_list added = {NULL, 0, 0, 0}; | |
75 | struct path_list deleted = {NULL, 0, 0, 0}; | |
76 | struct path_list changed = {NULL, 0, 0, 0}; | |
77 | ||
78 | git_config(git_default_config); | |
79 | ||
30ca07a2 | 80 | newfd = hold_locked_index(&lock_file, 1); |
11be42a4 JS |
81 | if (read_cache() < 0) |
82 | die("index file corrupt"); | |
83 | ||
84 | for (i = 1; i < argc; i++) { | |
85 | const char *arg = argv[i]; | |
86 | ||
87 | if (arg[0] != '-') | |
88 | break; | |
89 | if (!strcmp(arg, "--")) { | |
90 | i++; | |
91 | break; | |
92 | } | |
93 | if (!strcmp(arg, "-n")) { | |
94 | show_only = 1; | |
95 | continue; | |
96 | } | |
97 | if (!strcmp(arg, "-f")) { | |
98 | force = 1; | |
99 | continue; | |
100 | } | |
101 | if (!strcmp(arg, "-k")) { | |
102 | ignore_errors = 1; | |
103 | continue; | |
104 | } | |
cba05fa8 | 105 | usage(builtin_mv_usage); |
11be42a4 JS |
106 | } |
107 | count = argc - i - 1; | |
108 | if (count < 1) | |
109 | usage(builtin_mv_usage); | |
110 | ||
111 | source = copy_pathspec(prefix, argv + i, count, 0); | |
ac64a722 | 112 | modes = xcalloc(count, sizeof(enum update_mode)); |
11be42a4 JS |
113 | dest_path = copy_pathspec(prefix, argv + argc - 1, 1, 0); |
114 | ||
c5203bdf JS |
115 | if (dest_path[0][0] == '\0') |
116 | /* special case: "." was normalized to "" */ | |
117 | destination = copy_pathspec(dest_path[0], argv + i, count, 1); | |
118 | else if (!lstat(dest_path[0], &st) && | |
ac64a722 JS |
119 | S_ISDIR(st.st_mode)) { |
120 | dest_path[0] = add_slash(dest_path[0]); | |
11be42a4 | 121 | destination = copy_pathspec(dest_path[0], argv + i, count, 1); |
ac64a722 | 122 | } else { |
11be42a4 JS |
123 | if (count != 1) |
124 | usage(builtin_mv_usage); | |
125 | destination = dest_path; | |
126 | } | |
127 | ||
128 | /* Checking */ | |
129 | for (i = 0; i < count; i++) { | |
60a6bf5f JS |
130 | const char *src = source[i], *dst = destination[i]; |
131 | int length, src_is_dir; | |
11be42a4 JS |
132 | const char *bad = NULL; |
133 | ||
134 | if (show_only) | |
60a6bf5f | 135 | printf("Checking rename of '%s' to '%s'\n", src, dst); |
11be42a4 | 136 | |
60a6bf5f JS |
137 | length = strlen(src); |
138 | if (lstat(src, &st) < 0) | |
11be42a4 | 139 | bad = "bad source"; |
60a6bf5f JS |
140 | else if (!strncmp(src, dst, length) && |
141 | (dst[length] == 0 || dst[length] == '/')) { | |
d78b0f3d | 142 | bad = "can not move directory into itself"; |
60a6bf5f JS |
143 | } else if ((src_is_dir = S_ISDIR(st.st_mode)) |
144 | && lstat(dst, &st) == 0) | |
145 | bad = "cannot move directory over file"; | |
146 | else if (src_is_dir) { | |
aca085e5 JS |
147 | const char *src_w_slash = add_slash(src); |
148 | int len_w_slash = length + 1; | |
60a6bf5f | 149 | int first, last; |
ac64a722 JS |
150 | |
151 | modes[i] = WORKING_DIRECTORY; | |
152 | ||
aca085e5 | 153 | first = cache_name_pos(src_w_slash, len_w_slash); |
ac64a722 | 154 | if (first >= 0) |
aca085e5 JS |
155 | die ("Huh? %.*s is in index?", |
156 | len_w_slash, src_w_slash); | |
ac64a722 JS |
157 | |
158 | first = -1 - first; | |
159 | for (last = first; last < active_nr; last++) { | |
160 | const char *path = active_cache[last]->name; | |
aca085e5 | 161 | if (strncmp(path, src_w_slash, len_w_slash)) |
ac64a722 JS |
162 | break; |
163 | } | |
aca085e5 | 164 | free((char *)src_w_slash); |
ac64a722 JS |
165 | |
166 | if (last - first < 1) | |
167 | bad = "source directory is empty"; | |
60a6bf5f JS |
168 | else { |
169 | int j, dst_len; | |
ac64a722 JS |
170 | |
171 | if (last - first > 0) { | |
83572c1a | 172 | source = xrealloc(source, |
ac64a722 JS |
173 | (count + last - first) |
174 | * sizeof(char *)); | |
83572c1a | 175 | destination = xrealloc(destination, |
ac64a722 JS |
176 | (count + last - first) |
177 | * sizeof(char *)); | |
83572c1a | 178 | modes = xrealloc(modes, |
ac64a722 JS |
179 | (count + last - first) |
180 | * sizeof(enum update_mode)); | |
181 | } | |
182 | ||
60a6bf5f JS |
183 | dst = add_slash(dst); |
184 | dst_len = strlen(dst) - 1; | |
ac64a722 JS |
185 | |
186 | for (j = 0; j < last - first; j++) { | |
187 | const char *path = | |
188 | active_cache[first + j]->name; | |
189 | source[count + j] = path; | |
190 | destination[count + j] = | |
60a6bf5f JS |
191 | prefix_path(dst, dst_len, |
192 | path + length); | |
ac64a722 JS |
193 | modes[count + j] = INDEX; |
194 | } | |
195 | count += last - first; | |
196 | } | |
60a6bf5f | 197 | } else if (lstat(dst, &st) == 0) { |
11be42a4 JS |
198 | bad = "destination exists"; |
199 | if (force) { | |
200 | /* | |
201 | * only files can overwrite each other: | |
202 | * check both source and destination | |
203 | */ | |
204 | if (S_ISREG(st.st_mode)) { | |
205 | fprintf(stderr, "Warning: %s;" | |
206 | " will overwrite!\n", | |
207 | bad); | |
208 | bad = NULL; | |
60a6bf5f | 209 | path_list_insert(dst, &overwritten); |
11be42a4 JS |
210 | } else |
211 | bad = "Cannot overwrite"; | |
212 | } | |
60a6bf5f | 213 | } else if (cache_name_pos(src, length) < 0) |
11be42a4 | 214 | bad = "not under version control"; |
60a6bf5f JS |
215 | else if (path_list_has_path(&src_for_dst, dst)) |
216 | bad = "multiple sources for the same target"; | |
217 | else | |
218 | path_list_insert(dst, &src_for_dst); | |
11be42a4 | 219 | |
11be42a4 JS |
220 | if (bad) { |
221 | if (ignore_errors) { | |
222 | if (--count > 0) { | |
223 | memmove(source + i, source + i + 1, | |
224 | (count - i) * sizeof(char *)); | |
225 | memmove(destination + i, | |
226 | destination + i + 1, | |
227 | (count - i) * sizeof(char *)); | |
228 | } | |
229 | } else | |
ac64a722 | 230 | die ("%s, source=%s, destination=%s", |
60a6bf5f | 231 | bad, src, dst); |
11be42a4 JS |
232 | } |
233 | } | |
234 | ||
235 | for (i = 0; i < count; i++) { | |
60a6bf5f JS |
236 | const char *src = source[i], *dst = destination[i]; |
237 | enum update_mode mode = modes[i]; | |
11be42a4 | 238 | if (show_only || verbose) |
60a6bf5f JS |
239 | printf("Renaming %s to %s\n", src, dst); |
240 | if (!show_only && mode != INDEX && | |
241 | rename(src, dst) < 0 && !ignore_errors) | |
242 | die ("renaming %s failed: %s", src, strerror(errno)); | |
243 | ||
244 | if (mode == WORKING_DIRECTORY) | |
ac64a722 JS |
245 | continue; |
246 | ||
60a6bf5f JS |
247 | if (cache_name_pos(src, strlen(src)) >= 0) { |
248 | path_list_insert(src, &deleted); | |
11be42a4 JS |
249 | |
250 | /* destination can be a directory with 1 file inside */ | |
60a6bf5f JS |
251 | if (path_list_has_path(&overwritten, dst)) |
252 | path_list_insert(dst, &changed); | |
11be42a4 | 253 | else |
60a6bf5f | 254 | path_list_insert(dst, &added); |
11be42a4 | 255 | } else |
60a6bf5f | 256 | path_list_insert(dst, &added); |
11be42a4 JS |
257 | } |
258 | ||
259 | if (show_only) { | |
260 | show_list("Changed : ", &changed); | |
261 | show_list("Adding : ", &added); | |
262 | show_list("Deleting : ", &deleted); | |
263 | } else { | |
264 | for (i = 0; i < changed.nr; i++) { | |
265 | const char *path = changed.items[i].path; | |
d828f6dd PH |
266 | int j = cache_name_pos(path, strlen(path)); |
267 | struct cache_entry *ce = active_cache[j]; | |
11be42a4 | 268 | |
d828f6dd | 269 | if (j < 0) |
11be42a4 JS |
270 | die ("Huh? Cache entry for %s unknown?", path); |
271 | refresh_cache_entry(ce, 0); | |
272 | } | |
273 | ||
274 | for (i = 0; i < added.nr; i++) { | |
275 | const char *path = added.items[i].path; | |
fd1c3bf0 | 276 | add_file_to_cache(path, verbose); |
11be42a4 JS |
277 | } |
278 | ||
279 | for (i = 0; i < deleted.nr; i++) { | |
280 | const char *path = deleted.items[i].path; | |
281 | remove_file_from_cache(path); | |
4fddf579 | 282 | cache_tree_invalidate_path(active_cache_tree, path); |
11be42a4 JS |
283 | } |
284 | ||
285 | if (active_cache_changed) { | |
286 | if (write_cache(newfd, active_cache, active_nr) || | |
287 | close(newfd) || | |
30ca07a2 | 288 | commit_locked_index(&lock_file)) |
11be42a4 JS |
289 | die("Unable to write new index file"); |
290 | } | |
291 | } | |
292 | ||
293 | return 0; | |
294 | } |