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authorJunio C Hamano <gitster@pobox.com>2010-03-10 23:25:18 (GMT)
committerJunio C Hamano <gitster@pobox.com>2010-03-10 23:25:18 (GMT)
commit2e0e8b68e3ba8ea87f001c45c78f9b7ce549c61f (patch)
tree12363fe88e40f042c24583e829a696505fcb9b7c /builtin/mv.c
parente007240cb940811a6e075d35f5c3a93a44c54f5a (diff)
parent81b50f3ce40bfdd66e5d967bf82be001039a9a98 (diff)
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Merge branch 'lt/deepen-builtin-source'
* lt/deepen-builtin-source: Move 'builtin-*' into a 'builtin/' subdirectory Conflicts: Makefile
Diffstat (limited to 'builtin/mv.c')
-rw-r--r--builtin/mv.c227
1 files changed, 227 insertions, 0 deletions
diff --git a/builtin/mv.c b/builtin/mv.c
new file mode 100644
index 0000000..c07f53b
--- /dev/null
+++ b/builtin/mv.c
@@ -0,0 +1,227 @@
+/*
+ * "git mv" builtin command
+ *
+ * Copyright (C) 2006 Johannes Schindelin
+ */
+#include "cache.h"
+#include "builtin.h"
+#include "dir.h"
+#include "cache-tree.h"
+#include "string-list.h"
+#include "parse-options.h"
+
+static const char * const builtin_mv_usage[] = {
+ "git mv [options] <source>... <destination>",
+ NULL
+};
+
+static const char **copy_pathspec(const char *prefix, const char **pathspec,
+ int count, int base_name)
+{
+ int i;
+ const char **result = xmalloc((count + 1) * sizeof(const char *));
+ memcpy(result, pathspec, count * sizeof(const char *));
+ result[count] = NULL;
+ for (i = 0; i < count; i++) {
+ int length = strlen(result[i]);
+ int to_copy = length;
+ while (to_copy > 0 && is_dir_sep(result[i][to_copy - 1]))
+ to_copy--;
+ if (to_copy != length || base_name) {
+ char *it = xmemdupz(result[i], to_copy);
+ result[i] = base_name ? strdup(basename(it)) : it;
+ }
+ }
+ return get_pathspec(prefix, result);
+}
+
+static const char *add_slash(const char *path)
+{
+ int len = strlen(path);
+ if (path[len - 1] != '/') {
+ char *with_slash = xmalloc(len + 2);
+ memcpy(with_slash, path, len);
+ with_slash[len++] = '/';
+ with_slash[len] = 0;
+ return with_slash;
+ }
+ return path;
+}
+
+static struct lock_file lock_file;
+
+int cmd_mv(int argc, const char **argv, const char *prefix)
+{
+ int i, newfd;
+ int verbose = 0, show_only = 0, force = 0, ignore_errors = 0;
+ struct option builtin_mv_options[] = {
+ OPT__DRY_RUN(&show_only),
+ OPT_BOOLEAN('f', "force", &force, "force move/rename even if target exists"),
+ OPT_BOOLEAN('k', NULL, &ignore_errors, "skip move/rename errors"),
+ OPT_END(),
+ };
+ const char **source, **destination, **dest_path;
+ enum update_mode { BOTH = 0, WORKING_DIRECTORY, INDEX } *modes;
+ struct stat st;
+ struct string_list src_for_dst = {NULL, 0, 0, 0};
+
+ git_config(git_default_config, NULL);
+
+ argc = parse_options(argc, argv, prefix, builtin_mv_options,
+ builtin_mv_usage, 0);
+ if (--argc < 1)
+ usage_with_options(builtin_mv_usage, builtin_mv_options);
+
+ newfd = hold_locked_index(&lock_file, 1);
+ if (read_cache() < 0)
+ die("index file corrupt");
+
+ source = copy_pathspec(prefix, argv, argc, 0);
+ modes = xcalloc(argc, sizeof(enum update_mode));
+ dest_path = copy_pathspec(prefix, argv + argc, 1, 0);
+
+ if (dest_path[0][0] == '\0')
+ /* special case: "." was normalized to "" */
+ destination = copy_pathspec(dest_path[0], argv, argc, 1);
+ else if (!lstat(dest_path[0], &st) &&
+ S_ISDIR(st.st_mode)) {
+ dest_path[0] = add_slash(dest_path[0]);
+ destination = copy_pathspec(dest_path[0], argv, argc, 1);
+ } else {
+ if (argc != 1)
+ usage_with_options(builtin_mv_usage, builtin_mv_options);
+ destination = dest_path;
+ }
+
+ /* Checking */
+ for (i = 0; i < argc; i++) {
+ const char *src = source[i], *dst = destination[i];
+ int length, src_is_dir;
+ const char *bad = NULL;
+
+ if (show_only)
+ printf("Checking rename of '%s' to '%s'\n", src, dst);
+
+ length = strlen(src);
+ if (lstat(src, &st) < 0)
+ bad = "bad source";
+ else if (!strncmp(src, dst, length) &&
+ (dst[length] == 0 || dst[length] == '/')) {
+ bad = "can not move directory into itself";
+ } else if ((src_is_dir = S_ISDIR(st.st_mode))
+ && lstat(dst, &st) == 0)
+ bad = "cannot move directory over file";
+ else if (src_is_dir) {
+ const char *src_w_slash = add_slash(src);
+ int len_w_slash = length + 1;
+ int first, last;
+
+ modes[i] = WORKING_DIRECTORY;
+
+ first = cache_name_pos(src_w_slash, len_w_slash);
+ if (first >= 0)
+ die ("Huh? %.*s is in index?",
+ len_w_slash, src_w_slash);
+
+ first = -1 - first;
+ for (last = first; last < active_nr; last++) {
+ const char *path = active_cache[last]->name;
+ if (strncmp(path, src_w_slash, len_w_slash))
+ break;
+ }
+ free((char *)src_w_slash);
+
+ if (last - first < 1)
+ bad = "source directory is empty";
+ else {
+ int j, dst_len;
+
+ if (last - first > 0) {
+ source = xrealloc(source,
+ (argc + last - first)
+ * sizeof(char *));
+ destination = xrealloc(destination,
+ (argc + last - first)
+ * sizeof(char *));
+ modes = xrealloc(modes,
+ (argc + last - first)
+ * sizeof(enum update_mode));
+ }
+
+ dst = add_slash(dst);
+ dst_len = strlen(dst);
+
+ for (j = 0; j < last - first; j++) {
+ const char *path =
+ active_cache[first + j]->name;
+ source[argc + j] = path;
+ destination[argc + j] =
+ prefix_path(dst, dst_len,
+ path + length + 1);
+ modes[argc + j] = INDEX;
+ }
+ argc += last - first;
+ }
+ } else if (cache_name_pos(src, length) < 0)
+ bad = "not under version control";
+ else if (lstat(dst, &st) == 0) {
+ bad = "destination exists";
+ if (force) {
+ /*
+ * only files can overwrite each other:
+ * check both source and destination
+ */
+ if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) {
+ warning("%s; will overwrite!", bad);
+ bad = NULL;
+ } else
+ bad = "Cannot overwrite";
+ }
+ } else if (string_list_has_string(&src_for_dst, dst))
+ bad = "multiple sources for the same target";
+ else
+ string_list_insert(dst, &src_for_dst);
+
+ if (bad) {
+ if (ignore_errors) {
+ if (--argc > 0) {
+ memmove(source + i, source + i + 1,
+ (argc - i) * sizeof(char *));
+ memmove(destination + i,
+ destination + i + 1,
+ (argc - i) * sizeof(char *));
+ i--;
+ }
+ } else
+ die ("%s, source=%s, destination=%s",
+ bad, src, dst);
+ }
+ }
+
+ for (i = 0; i < argc; i++) {
+ const char *src = source[i], *dst = destination[i];
+ enum update_mode mode = modes[i];
+ int pos;
+ if (show_only || verbose)
+ printf("Renaming %s to %s\n", src, dst);
+ if (!show_only && mode != INDEX &&
+ rename(src, dst) < 0 && !ignore_errors)
+ die_errno ("renaming '%s' failed", src);
+
+ if (mode == WORKING_DIRECTORY)
+ continue;
+
+ pos = cache_name_pos(src, strlen(src));
+ assert(pos >= 0);
+ if (!show_only)
+ rename_cache_entry_at(pos, dst);
+ }
+
+ if (active_cache_changed) {
+ if (write_cache(newfd, active_cache, active_nr) ||
+ commit_locked_index(&lock_file))
+ die("Unable to write new index file");
+ }
+
+ return 0;
+}