1/*
2 * "git mv" builtin command
3 *
4 * Copyright (C) 2006 Johannes Schindelin
5 */
6#include "cache.h"
7#include "builtin.h"
8#include "dir.h"
9#include "cache-tree.h"
10#include "string-list.h"
11#include "parse-options.h"
12static const char * const builtin_mv_usage[] = {
14 N_("git mv [options] <source>... <destination>"),
15 NULL
16};
17static const char **internal_copy_pathspec(const char *prefix,
19 const char **pathspec,
20 int count, int base_name)
21{
22 int i;
23 const char **result = xmalloc((count + 1) * sizeof(const char *));
24 memcpy(result, pathspec, count * sizeof(const char *));
25 result[count] = NULL;
26 for (i = 0; i < count; i++) {
27 int length = strlen(result[i]);
28 int to_copy = length;
29 while (to_copy > 0 && is_dir_sep(result[i][to_copy - 1]))
30 to_copy--;
31 if (to_copy != length || base_name) {
32 char *it = xmemdupz(result[i], to_copy);
33 if (base_name) {
34 result[i] = xstrdup(basename(it));
35 free(it);
36 } else
37 result[i] = it;
38 }
39 }
40 return get_pathspec(prefix, result);
41}
42static const char *add_slash(const char *path)
44{
45 int len = strlen(path);
46 if (path[len - 1] != '/') {
47 char *with_slash = xmalloc(len + 2);
48 memcpy(with_slash, path, len);
49 with_slash[len++] = '/';
50 with_slash[len] = 0;
51 return with_slash;
52 }
53 return path;
54}
55static struct lock_file lock_file;
57int cmd_mv(int argc, const char **argv, const char *prefix)
59{
60 int i, newfd;
61 int verbose = 0, show_only = 0, force = 0, ignore_errors = 0;
62 struct option builtin_mv_options[] = {
63 OPT__VERBOSE(&verbose, N_("be verbose")),
64 OPT__DRY_RUN(&show_only, N_("dry run")),
65 OPT__FORCE(&force, N_("force move/rename even if target exists")),
66 OPT_BOOLEAN('k', NULL, &ignore_errors, N_("skip move/rename errors")),
67 OPT_END(),
68 };
69 const char **source, **destination, **dest_path;
70 enum update_mode { BOTH = 0, WORKING_DIRECTORY, INDEX } *modes;
71 struct stat st;
72 struct string_list src_for_dst = STRING_LIST_INIT_NODUP;
73 git_config(git_default_config, NULL);
75 argc = parse_options(argc, argv, prefix, builtin_mv_options,
77 builtin_mv_usage, 0);
78 if (--argc < 1)
79 usage_with_options(builtin_mv_usage, builtin_mv_options);
80 newfd = hold_locked_index(&lock_file, 1);
82 if (read_cache() < 0)
83 die(_("index file corrupt"));
84 source = internal_copy_pathspec(prefix, argv, argc, 0);
86 modes = xcalloc(argc, sizeof(enum update_mode));
87 dest_path = internal_copy_pathspec(prefix, argv + argc, 1, 0);
88 if (dest_path[0][0] == '\0')
90 /* special case: "." was normalized to "" */
91 destination = internal_copy_pathspec(dest_path[0], argv, argc, 1);
92 else if (!lstat(dest_path[0], &st) &&
93 S_ISDIR(st.st_mode)) {
94 dest_path[0] = add_slash(dest_path[0]);
95 destination = internal_copy_pathspec(dest_path[0], argv, argc, 1);
96 } else {
97 if (argc != 1)
98 die("destination '%s' is not a directory", dest_path[0]);
99 destination = dest_path;
100 }
101 /* Checking */
103 for (i = 0; i < argc; i++) {
104 const char *src = source[i], *dst = destination[i];
105 int length, src_is_dir;
106 const char *bad = NULL;
107 if (show_only)
109 printf(_("Checking rename of '%s' to '%s'\n"), src, dst);
110 length = strlen(src);
112 if (lstat(src, &st) < 0)
113 bad = _("bad source");
114 else if (!strncmp(src, dst, length) &&
115 (dst[length] == 0 || dst[length] == '/')) {
116 bad = _("can not move directory into itself");
117 } else if ((src_is_dir = S_ISDIR(st.st_mode))
118 && lstat(dst, &st) == 0)
119 bad = _("cannot move directory over file");
120 else if (src_is_dir) {
121 const char *src_w_slash = add_slash(src);
122 int len_w_slash = length + 1;
123 int first, last;
124 modes[i] = WORKING_DIRECTORY;
126 first = cache_name_pos(src_w_slash, len_w_slash);
128 if (first >= 0)
129 die (_("Huh? %.*s is in index?"),
130 len_w_slash, src_w_slash);
131 first = -1 - first;
133 for (last = first; last < active_nr; last++) {
134 const char *path = active_cache[last]->name;
135 if (strncmp(path, src_w_slash, len_w_slash))
136 break;
137 }
138 free((char *)src_w_slash);
139 if (last - first < 1)
141 bad = _("source directory is empty");
142 else {
143 int j, dst_len;
144 if (last - first > 0) {
146 source = xrealloc(source,
147 (argc + last - first)
148 * sizeof(char *));
149 destination = xrealloc(destination,
150 (argc + last - first)
151 * sizeof(char *));
152 modes = xrealloc(modes,
153 (argc + last - first)
154 * sizeof(enum update_mode));
155 }
156 dst = add_slash(dst);
158 dst_len = strlen(dst);
159 for (j = 0; j < last - first; j++) {
161 const char *path =
162 active_cache[first + j]->name;
163 source[argc + j] = path;
164 destination[argc + j] =
165 prefix_path(dst, dst_len,
166 path + length + 1);
167 modes[argc + j] = INDEX;
168 }
169 argc += last - first;
170 }
171 } else if (cache_name_pos(src, length) < 0)
172 bad = _("not under version control");
173 else if (lstat(dst, &st) == 0) {
174 bad = _("destination exists");
175 if (force) {
176 /*
177 * only files can overwrite each other:
178 * check both source and destination
179 */
180 if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) {
181 if (verbose)
182 warning(_("overwriting '%s'"), dst);
183 bad = NULL;
184 } else
185 bad = _("Cannot overwrite");
186 }
187 } else if (string_list_has_string(&src_for_dst, dst))
188 bad = _("multiple sources for the same target");
189 else
190 string_list_insert(&src_for_dst, dst);
191 if (bad) {
193 if (ignore_errors) {
194 if (--argc > 0) {
195 memmove(source + i, source + i + 1,
196 (argc - i) * sizeof(char *));
197 memmove(destination + i,
198 destination + i + 1,
199 (argc - i) * sizeof(char *));
200 i--;
201 }
202 } else
203 die (_("%s, source=%s, destination=%s"),
204 bad, src, dst);
205 }
206 }
207 for (i = 0; i < argc; i++) {
209 const char *src = source[i], *dst = destination[i];
210 enum update_mode mode = modes[i];
211 int pos;
212 if (show_only || verbose)
213 printf(_("Renaming %s to %s\n"), src, dst);
214 if (!show_only && mode != INDEX &&
215 rename(src, dst) < 0 && !ignore_errors)
216 die_errno (_("renaming '%s' failed"), src);
217 if (mode == WORKING_DIRECTORY)
219 continue;
220 pos = cache_name_pos(src, strlen(src));
222 assert(pos >= 0);
223 if (!show_only)
224 rename_cache_entry_at(pos, dst);
225 }
226 if (active_cache_changed) {
228 if (write_cache(newfd, active_cache, active_nr) ||
229 commit_locked_index(&lock_file))
230 die(_("Unable to write new index file"));
231 }
232 return 0;
234}