Make builtin-rm.c use parse_options.
[git/git.git] / builtin-mv.c
CommitLineData
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1/*
2 * "git mv" builtin command
3 *
4 * Copyright (C) 2006 Johannes Schindelin
5 */
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6#include "cache.h"
7#include "builtin.h"
8#include "dir.h"
9#include "cache-tree.h"
10#include "path-list.h"
11
12static const char builtin_mv_usage[] =
13"git-mv [-n] [-f] (<source> <destination> | [-k] <source>... <destination>)";
14
15static const char **copy_pathspec(const char *prefix, const char **pathspec,
16 int count, int base_name)
17{
d78b0f3d 18 int i;
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19 const char **result = xmalloc((count + 1) * sizeof(const char *));
20 memcpy(result, pathspec, count * sizeof(const char *));
21 result[count] = NULL;
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22 for (i = 0; i < count; i++) {
23 int length = strlen(result[i]);
24 if (length > 0 && result[i][length - 1] == '/') {
182af834 25 result[i] = xmemdupz(result[i], length - 1);
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26 }
27 if (base_name) {
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28 const char *last_slash = strrchr(result[i], '/');
29 if (last_slash)
30 result[i] = last_slash + 1;
31 }
32 }
33 return get_pathspec(prefix, result);
34}
35
36static void show_list(const char *label, struct path_list *list)
37{
38 if (list->nr > 0) {
39 int i;
40 printf("%s", label);
41 for (i = 0; i < list->nr; i++)
42 printf("%s%s", i > 0 ? ", " : "", list->items[i].path);
43 putchar('\n');
44 }
45}
46
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47static const char *add_slash(const char *path)
48{
49 int len = strlen(path);
50 if (path[len - 1] != '/') {
51 char *with_slash = xmalloc(len + 2);
52 memcpy(with_slash, path, len);
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53 with_slash[len++] = '/';
54 with_slash[len] = 0;
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55 return with_slash;
56 }
57 return path;
58}
59
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60static struct lock_file lock_file;
61
7061cf0f 62int cmd_mv(int argc, const char **argv, const char *prefix)
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63{
64 int i, newfd, count;
65 int verbose = 0, show_only = 0, force = 0, ignore_errors = 0;
11be42a4 66 const char **source, **destination, **dest_path;
ac64a722 67 enum update_mode { BOTH = 0, WORKING_DIRECTORY, INDEX } *modes;
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68 struct stat st;
69 struct path_list overwritten = {NULL, 0, 0, 0};
70 struct path_list src_for_dst = {NULL, 0, 0, 0};
71 struct path_list added = {NULL, 0, 0, 0};
72 struct path_list deleted = {NULL, 0, 0, 0};
73 struct path_list changed = {NULL, 0, 0, 0};
74
75 git_config(git_default_config);
76
30ca07a2 77 newfd = hold_locked_index(&lock_file, 1);
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78 if (read_cache() < 0)
79 die("index file corrupt");
80
81 for (i = 1; i < argc; i++) {
82 const char *arg = argv[i];
83
84 if (arg[0] != '-')
85 break;
86 if (!strcmp(arg, "--")) {
87 i++;
88 break;
89 }
90 if (!strcmp(arg, "-n")) {
91 show_only = 1;
92 continue;
93 }
94 if (!strcmp(arg, "-f")) {
95 force = 1;
96 continue;
97 }
98 if (!strcmp(arg, "-k")) {
99 ignore_errors = 1;
100 continue;
101 }
cba05fa8 102 usage(builtin_mv_usage);
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103 }
104 count = argc - i - 1;
105 if (count < 1)
106 usage(builtin_mv_usage);
107
108 source = copy_pathspec(prefix, argv + i, count, 0);
ac64a722 109 modes = xcalloc(count, sizeof(enum update_mode));
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110 dest_path = copy_pathspec(prefix, argv + argc - 1, 1, 0);
111
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112 if (dest_path[0][0] == '\0')
113 /* special case: "." was normalized to "" */
114 destination = copy_pathspec(dest_path[0], argv + i, count, 1);
115 else if (!lstat(dest_path[0], &st) &&
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116 S_ISDIR(st.st_mode)) {
117 dest_path[0] = add_slash(dest_path[0]);
11be42a4 118 destination = copy_pathspec(dest_path[0], argv + i, count, 1);
ac64a722 119 } else {
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120 if (count != 1)
121 usage(builtin_mv_usage);
122 destination = dest_path;
123 }
124
125 /* Checking */
126 for (i = 0; i < count; i++) {
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127 const char *src = source[i], *dst = destination[i];
128 int length, src_is_dir;
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129 const char *bad = NULL;
130
131 if (show_only)
60a6bf5f 132 printf("Checking rename of '%s' to '%s'\n", src, dst);
11be42a4 133
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134 length = strlen(src);
135 if (lstat(src, &st) < 0)
11be42a4 136 bad = "bad source";
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137 else if (!strncmp(src, dst, length) &&
138 (dst[length] == 0 || dst[length] == '/')) {
d78b0f3d 139 bad = "can not move directory into itself";
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140 } else if ((src_is_dir = S_ISDIR(st.st_mode))
141 && lstat(dst, &st) == 0)
142 bad = "cannot move directory over file";
143 else if (src_is_dir) {
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144 const char *src_w_slash = add_slash(src);
145 int len_w_slash = length + 1;
60a6bf5f 146 int first, last;
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147
148 modes[i] = WORKING_DIRECTORY;
149
aca085e5 150 first = cache_name_pos(src_w_slash, len_w_slash);
ac64a722 151 if (first >= 0)
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152 die ("Huh? %.*s is in index?",
153 len_w_slash, src_w_slash);
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154
155 first = -1 - first;
156 for (last = first; last < active_nr; last++) {
157 const char *path = active_cache[last]->name;
aca085e5 158 if (strncmp(path, src_w_slash, len_w_slash))
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159 break;
160 }
aca085e5 161 free((char *)src_w_slash);
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162
163 if (last - first < 1)
164 bad = "source directory is empty";
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165 else {
166 int j, dst_len;
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167
168 if (last - first > 0) {
83572c1a 169 source = xrealloc(source,
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170 (count + last - first)
171 * sizeof(char *));
83572c1a 172 destination = xrealloc(destination,
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173 (count + last - first)
174 * sizeof(char *));
83572c1a 175 modes = xrealloc(modes,
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176 (count + last - first)
177 * sizeof(enum update_mode));
178 }
179
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180 dst = add_slash(dst);
181 dst_len = strlen(dst) - 1;
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182
183 for (j = 0; j < last - first; j++) {
184 const char *path =
185 active_cache[first + j]->name;
186 source[count + j] = path;
187 destination[count + j] =
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188 prefix_path(dst, dst_len,
189 path + length);
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190 modes[count + j] = INDEX;
191 }
192 count += last - first;
193 }
60a6bf5f 194 } else if (lstat(dst, &st) == 0) {
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195 bad = "destination exists";
196 if (force) {
197 /*
198 * only files can overwrite each other:
199 * check both source and destination
200 */
201 if (S_ISREG(st.st_mode)) {
202 fprintf(stderr, "Warning: %s;"
203 " will overwrite!\n",
204 bad);
205 bad = NULL;
60a6bf5f 206 path_list_insert(dst, &overwritten);
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207 } else
208 bad = "Cannot overwrite";
209 }
60a6bf5f 210 } else if (cache_name_pos(src, length) < 0)
11be42a4 211 bad = "not under version control";
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212 else if (path_list_has_path(&src_for_dst, dst))
213 bad = "multiple sources for the same target";
214 else
215 path_list_insert(dst, &src_for_dst);
11be42a4 216
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217 if (bad) {
218 if (ignore_errors) {
219 if (--count > 0) {
220 memmove(source + i, source + i + 1,
221 (count - i) * sizeof(char *));
222 memmove(destination + i,
223 destination + i + 1,
224 (count - i) * sizeof(char *));
225 }
226 } else
ac64a722 227 die ("%s, source=%s, destination=%s",
60a6bf5f 228 bad, src, dst);
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229 }
230 }
231
232 for (i = 0; i < count; i++) {
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233 const char *src = source[i], *dst = destination[i];
234 enum update_mode mode = modes[i];
11be42a4 235 if (show_only || verbose)
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236 printf("Renaming %s to %s\n", src, dst);
237 if (!show_only && mode != INDEX &&
238 rename(src, dst) < 0 && !ignore_errors)
239 die ("renaming %s failed: %s", src, strerror(errno));
240
241 if (mode == WORKING_DIRECTORY)
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242 continue;
243
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244 if (cache_name_pos(src, strlen(src)) >= 0) {
245 path_list_insert(src, &deleted);
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246
247 /* destination can be a directory with 1 file inside */
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248 if (path_list_has_path(&overwritten, dst))
249 path_list_insert(dst, &changed);
11be42a4 250 else
60a6bf5f 251 path_list_insert(dst, &added);
11be42a4 252 } else
60a6bf5f 253 path_list_insert(dst, &added);
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254 }
255
256 if (show_only) {
257 show_list("Changed : ", &changed);
258 show_list("Adding : ", &added);
259 show_list("Deleting : ", &deleted);
260 } else {
261 for (i = 0; i < changed.nr; i++) {
262 const char *path = changed.items[i].path;
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263 int j = cache_name_pos(path, strlen(path));
264 struct cache_entry *ce = active_cache[j];
11be42a4 265
d828f6dd 266 if (j < 0)
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267 die ("Huh? Cache entry for %s unknown?", path);
268 refresh_cache_entry(ce, 0);
269 }
270
271 for (i = 0; i < added.nr; i++) {
272 const char *path = added.items[i].path;
fd1c3bf0 273 add_file_to_cache(path, verbose);
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274 }
275
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276 for (i = 0; i < deleted.nr; i++)
277 remove_file_from_cache(deleted.items[i].path);
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278
279 if (active_cache_changed) {
280 if (write_cache(newfd, active_cache, active_nr) ||
281 close(newfd) ||
30ca07a2 282 commit_locked_index(&lock_file))
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283 die("Unable to write new index file");
284 }
285 }
286
287 return 0;
288}