Git 1.8.5.1
[git/git.git] / builtin / mv.c
CommitLineData
11be42a4
JS
1/*
2 * "git mv" builtin command
3 *
4 * Copyright (C) 2006 Johannes Schindelin
5 */
11be42a4
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6#include "cache.h"
7#include "builtin.h"
8#include "dir.h"
9#include "cache-tree.h"
c455c87c 10#include "string-list.h"
c7a20c11 11#include "parse-options.h"
a88c915d 12#include "submodule.h"
11be42a4 13
c7a20c11 14static const char * const builtin_mv_usage[] = {
6c54dc46 15 N_("git mv [options] <source>... <destination>"),
c7a20c11
PH
16 NULL
17};
11be42a4 18
e4d92cdc
NTND
19static const char **internal_copy_pathspec(const char *prefix,
20 const char **pathspec,
21 int count, int base_name)
11be42a4 22{
d78b0f3d 23 int i;
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24 const char **result = xmalloc((count + 1) * sizeof(const char *));
25 memcpy(result, pathspec, count * sizeof(const char *));
26 result[count] = NULL;
d78b0f3d
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27 for (i = 0; i < count; i++) {
28 int length = strlen(result[i]);
af82559b
JH
29 int to_copy = length;
30 while (to_copy > 0 && is_dir_sep(result[i][to_copy - 1]))
31 to_copy--;
32 if (to_copy != length || base_name) {
33 char *it = xmemdupz(result[i], to_copy);
0d0ff65c
BC
34 if (base_name) {
35 result[i] = xstrdup(basename(it));
36 free(it);
37 } else
38 result[i] = it;
af82559b 39 }
11be42a4 40 }
971dfa19 41 return get_pathspec(prefix, result);
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42}
43
ac64a722
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44static const char *add_slash(const char *path)
45{
46 int len = strlen(path);
47 if (path[len - 1] != '/') {
48 char *with_slash = xmalloc(len + 2);
49 memcpy(with_slash, path, len);
329a3047
JH
50 with_slash[len++] = '/';
51 with_slash[len] = 0;
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52 return with_slash;
53 }
54 return path;
55}
56
11be42a4 57static struct lock_file lock_file;
04c1ee57 58#define SUBMODULE_WITH_GITDIR ((const char *)1)
11be42a4 59
7061cf0f 60int cmd_mv(int argc, const char **argv, const char *prefix)
11be42a4 61{
0656781f 62 int i, newfd, gitmodules_modified = 0;
11be42a4 63 int verbose = 0, show_only = 0, force = 0, ignore_errors = 0;
c7a20c11 64 struct option builtin_mv_options[] = {
6c54dc46
NTND
65 OPT__VERBOSE(&verbose, N_("be verbose")),
66 OPT__DRY_RUN(&show_only, N_("dry run")),
67 OPT__FORCE(&force, N_("force move/rename even if target exists")),
d5d09d47 68 OPT_BOOL('k', NULL, &ignore_errors, N_("skip move/rename errors")),
c7a20c11
PH
69 OPT_END(),
70 };
a88c915d 71 const char **source, **destination, **dest_path, **submodule_gitfile;
ac64a722 72 enum update_mode { BOTH = 0, WORKING_DIRECTORY, INDEX } *modes;
11be42a4 73 struct stat st;
183113a5 74 struct string_list src_for_dst = STRING_LIST_INIT_NODUP;
11be42a4 75
0656781f 76 gitmodules_config();
ef90d6d4 77 git_config(git_default_config, NULL);
11be42a4 78
37782920
SB
79 argc = parse_options(argc, argv, prefix, builtin_mv_options,
80 builtin_mv_usage, 0);
c7a20c11
PH
81 if (--argc < 1)
82 usage_with_options(builtin_mv_usage, builtin_mv_options);
11be42a4 83
99caeed0
JN
84 newfd = hold_locked_index(&lock_file, 1);
85 if (read_cache() < 0)
431b049e 86 die(_("index file corrupt"));
99caeed0 87
e4d92cdc 88 source = internal_copy_pathspec(prefix, argv, argc, 0);
c7a20c11 89 modes = xcalloc(argc, sizeof(enum update_mode));
e4d92cdc 90 dest_path = internal_copy_pathspec(prefix, argv + argc, 1, 0);
a88c915d 91 submodule_gitfile = xcalloc(argc, sizeof(char *));
11be42a4 92
c5203bdf
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93 if (dest_path[0][0] == '\0')
94 /* special case: "." was normalized to "" */
e4d92cdc 95 destination = internal_copy_pathspec(dest_path[0], argv, argc, 1);
c5203bdf 96 else if (!lstat(dest_path[0], &st) &&
ac64a722
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97 S_ISDIR(st.st_mode)) {
98 dest_path[0] = add_slash(dest_path[0]);
e4d92cdc 99 destination = internal_copy_pathspec(dest_path[0], argv, argc, 1);
ac64a722 100 } else {
c7a20c11 101 if (argc != 1)
77471646 102 die("destination '%s' is not a directory", dest_path[0]);
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103 destination = dest_path;
104 }
105
106 /* Checking */
c7a20c11 107 for (i = 0; i < argc; i++) {
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108 const char *src = source[i], *dst = destination[i];
109 int length, src_is_dir;
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110 const char *bad = NULL;
111
112 if (show_only)
431b049e 113 printf(_("Checking rename of '%s' to '%s'\n"), src, dst);
11be42a4 114
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115 length = strlen(src);
116 if (lstat(src, &st) < 0)
a7d5629f 117 bad = _("bad source");
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118 else if (!strncmp(src, dst, length) &&
119 (dst[length] == 0 || dst[length] == '/')) {
a7d5629f 120 bad = _("can not move directory into itself");
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121 } else if ((src_is_dir = S_ISDIR(st.st_mode))
122 && lstat(dst, &st) == 0)
a7d5629f 123 bad = _("cannot move directory over file");
60a6bf5f 124 else if (src_is_dir) {
11502468
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125 int first = cache_name_pos(src, length);
126 if (first >= 0) {
a88c915d 127 struct strbuf submodule_dotgit = STRBUF_INIT;
11502468
JL
128 if (!S_ISGITLINK(active_cache[first]->ce_mode))
129 die (_("Huh? Directory %s is in index and no submodule?"), src);
0656781f
JL
130 if (!is_staging_gitmodules_ok())
131 die (_("Please, stage your changes to .gitmodules or stash them to proceed"));
a88c915d
JL
132 strbuf_addf(&submodule_dotgit, "%s/.git", src);
133 submodule_gitfile[i] = read_gitfile(submodule_dotgit.buf);
134 if (submodule_gitfile[i])
135 submodule_gitfile[i] = xstrdup(submodule_gitfile[i]);
04c1ee57
JL
136 else
137 submodule_gitfile[i] = SUBMODULE_WITH_GITDIR;
a88c915d 138 strbuf_release(&submodule_dotgit);
11502468
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139 } else {
140 const char *src_w_slash = add_slash(src);
141 int last, len_w_slash = length + 1;
142
143 modes[i] = WORKING_DIRECTORY;
144
145 first = cache_name_pos(src_w_slash, len_w_slash);
146 if (first >= 0)
147 die (_("Huh? %.*s is in index?"),
148 len_w_slash, src_w_slash);
149
150 first = -1 - first;
151 for (last = first; last < active_nr; last++) {
152 const char *path = active_cache[last]->name;
153 if (strncmp(path, src_w_slash, len_w_slash))
154 break;
ac64a722 155 }
11502468
JL
156 free((char *)src_w_slash);
157
158 if (last - first < 1)
159 bad = _("source directory is empty");
160 else {
161 int j, dst_len;
ac64a722 162
11502468
JL
163 if (last - first > 0) {
164 source = xrealloc(source,
165 (argc + last - first)
166 * sizeof(char *));
167 destination = xrealloc(destination,
168 (argc + last - first)
169 * sizeof(char *));
170 modes = xrealloc(modes,
171 (argc + last - first)
172 * sizeof(enum update_mode));
173 }
174
175 dst = add_slash(dst);
176 dst_len = strlen(dst);
177
178 for (j = 0; j < last - first; j++) {
179 const char *path =
180 active_cache[first + j]->name;
181 source[argc + j] = path;
182 destination[argc + j] =
183 prefix_path(dst, dst_len,
184 path + length + 1);
185 modes[argc + j] = INDEX;
186 }
187 argc += last - first;
ac64a722 188 }
ac64a722 189 }
5aed3c6a 190 } else if (cache_name_pos(src, length) < 0)
a7d5629f 191 bad = _("not under version control");
5aed3c6a 192 else if (lstat(dst, &st) == 0) {
a7d5629f 193 bad = _("destination exists");
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194 if (force) {
195 /*
196 * only files can overwrite each other:
197 * check both source and destination
198 */
81dc2307 199 if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) {
534376ca
JK
200 if (verbose)
201 warning(_("overwriting '%s'"), dst);
11be42a4 202 bad = NULL;
11be42a4 203 } else
a7d5629f 204 bad = _("Cannot overwrite");
11be42a4 205 }
5aed3c6a 206 } else if (string_list_has_string(&src_for_dst, dst))
a7d5629f 207 bad = _("multiple sources for the same target");
60a6bf5f 208 else
78a395d3 209 string_list_insert(&src_for_dst, dst);
11be42a4 210
11be42a4
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211 if (bad) {
212 if (ignore_errors) {
c7a20c11 213 if (--argc > 0) {
11be42a4 214 memmove(source + i, source + i + 1,
c7a20c11 215 (argc - i) * sizeof(char *));
11be42a4
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216 memmove(destination + i,
217 destination + i + 1,
c7a20c11 218 (argc - i) * sizeof(char *));
be17262d 219 i--;
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220 }
221 } else
431b049e 222 die (_("%s, source=%s, destination=%s"),
60a6bf5f 223 bad, src, dst);
11be42a4
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224 }
225 }
226
c7a20c11 227 for (i = 0; i < argc; i++) {
60a6bf5f
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228 const char *src = source[i], *dst = destination[i];
229 enum update_mode mode = modes[i];
81dc2307 230 int pos;
11be42a4 231 if (show_only || verbose)
431b049e 232 printf(_("Renaming %s to %s\n"), src, dst);
a88c915d
JL
233 if (!show_only && mode != INDEX) {
234 if (rename(src, dst) < 0 && !ignore_errors)
235 die_errno (_("renaming '%s' failed"), src);
04c1ee57
JL
236 if (submodule_gitfile[i]) {
237 if (submodule_gitfile[i] != SUBMODULE_WITH_GITDIR)
238 connect_work_tree_and_git_dir(dst, submodule_gitfile[i]);
239 if (!update_path_in_gitmodules(src, dst))
240 gitmodules_modified = 1;
241 }
a88c915d 242 }
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243
244 if (mode == WORKING_DIRECTORY)
ac64a722
JS
245 continue;
246
81dc2307
PB
247 pos = cache_name_pos(src, strlen(src));
248 assert(pos >= 0);
249 if (!show_only)
250 rename_cache_entry_at(pos, dst);
11be42a4
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251 }
252
0656781f
JL
253 if (gitmodules_modified)
254 stage_updated_gitmodules();
255
81dc2307
PB
256 if (active_cache_changed) {
257 if (write_cache(newfd, active_cache, active_nr) ||
258 commit_locked_index(&lock_file))
431b049e 259 die(_("Unable to write new index file"));
11be42a4
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260 }
261
262 return 0;
263}