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-rw-r--r--builtin-mv.c294
1 files changed, 294 insertions, 0 deletions
diff --git a/builtin-mv.c b/builtin-mv.c
new file mode 100644
index 0000000000..3563216aca
--- /dev/null
+++ b/builtin-mv.c
@@ -0,0 +1,294 @@
+/*
+ * "git mv" builtin command
+ *
+ * Copyright (C) 2006 Johannes Schindelin
+ */
+#include "cache.h"
+#include "builtin.h"
+#include "dir.h"
+#include "cache-tree.h"
+#include "path-list.h"
+
+static const char builtin_mv_usage[] =
+"git-mv [-n] [-f] (<source> <destination> | [-k] <source>... <destination>)";
+
+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]);
+ if (length > 0 && result[i][length - 1] == '/') {
+ char *without_slash = xmalloc(length);
+ memcpy(without_slash, result[i], length - 1);
+ without_slash[length - 1] = '\0';
+ result[i] = without_slash;
+ }
+ if (base_name) {
+ const char *last_slash = strrchr(result[i], '/');
+ if (last_slash)
+ result[i] = last_slash + 1;
+ }
+ }
+ return get_pathspec(prefix, result);
+}
+
+static void show_list(const char *label, struct path_list *list)
+{
+ if (list->nr > 0) {
+ int i;
+ printf("%s", label);
+ for (i = 0; i < list->nr; i++)
+ printf("%s%s", i > 0 ? ", " : "", list->items[i].path);
+ putchar('\n');
+ }
+}
+
+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, count;
+ int verbose = 0, show_only = 0, force = 0, ignore_errors = 0;
+ const char **source, **destination, **dest_path;
+ enum update_mode { BOTH = 0, WORKING_DIRECTORY, INDEX } *modes;
+ struct stat st;
+ struct path_list overwritten = {NULL, 0, 0, 0};
+ struct path_list src_for_dst = {NULL, 0, 0, 0};
+ struct path_list added = {NULL, 0, 0, 0};
+ struct path_list deleted = {NULL, 0, 0, 0};
+ struct path_list changed = {NULL, 0, 0, 0};
+
+ git_config(git_default_config);
+
+ newfd = hold_locked_index(&lock_file, 1);
+ if (read_cache() < 0)
+ die("index file corrupt");
+
+ for (i = 1; i < argc; i++) {
+ const char *arg = argv[i];
+
+ if (arg[0] != '-')
+ break;
+ if (!strcmp(arg, "--")) {
+ i++;
+ break;
+ }
+ if (!strcmp(arg, "-n")) {
+ show_only = 1;
+ continue;
+ }
+ if (!strcmp(arg, "-f")) {
+ force = 1;
+ continue;
+ }
+ if (!strcmp(arg, "-k")) {
+ ignore_errors = 1;
+ continue;
+ }
+ usage(builtin_mv_usage);
+ }
+ count = argc - i - 1;
+ if (count < 1)
+ usage(builtin_mv_usage);
+
+ source = copy_pathspec(prefix, argv + i, count, 0);
+ modes = xcalloc(count, sizeof(enum update_mode));
+ dest_path = copy_pathspec(prefix, argv + argc - 1, 1, 0);
+
+ if (dest_path[0][0] == '\0')
+ /* special case: "." was normalized to "" */
+ destination = copy_pathspec(dest_path[0], argv + i, count, 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 + i, count, 1);
+ } else {
+ if (count != 1)
+ usage(builtin_mv_usage);
+ destination = dest_path;
+ }
+
+ /* Checking */
+ for (i = 0; i < count; 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,
+ (count + last - first)
+ * sizeof(char *));
+ destination = xrealloc(destination,
+ (count + last - first)
+ * sizeof(char *));
+ modes = xrealloc(modes,
+ (count + last - first)
+ * sizeof(enum update_mode));
+ }
+
+ dst = add_slash(dst);
+ dst_len = strlen(dst) - 1;
+
+ for (j = 0; j < last - first; j++) {
+ const char *path =
+ active_cache[first + j]->name;
+ source[count + j] = path;
+ destination[count + j] =
+ prefix_path(dst, dst_len,
+ path + length);
+ modes[count + j] = INDEX;
+ }
+ count += last - first;
+ }
+ } 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)) {
+ fprintf(stderr, "Warning: %s;"
+ " will overwrite!\n",
+ bad);
+ bad = NULL;
+ path_list_insert(dst, &overwritten);
+ } else
+ bad = "Cannot overwrite";
+ }
+ } else if (cache_name_pos(src, length) < 0)
+ bad = "not under version control";
+ else if (path_list_has_path(&src_for_dst, dst))
+ bad = "multiple sources for the same target";
+ else
+ path_list_insert(dst, &src_for_dst);
+
+ if (bad) {
+ if (ignore_errors) {
+ if (--count > 0) {
+ memmove(source + i, source + i + 1,
+ (count - i) * sizeof(char *));
+ memmove(destination + i,
+ destination + i + 1,
+ (count - i) * sizeof(char *));
+ }
+ } else
+ die ("%s, source=%s, destination=%s",
+ bad, src, dst);
+ }
+ }
+
+ for (i = 0; i < count; i++) {
+ const char *src = source[i], *dst = destination[i];
+ enum update_mode mode = modes[i];
+ if (show_only || verbose)
+ printf("Renaming %s to %s\n", src, dst);
+ if (!show_only && mode != INDEX &&
+ rename(src, dst) < 0 && !ignore_errors)
+ die ("renaming %s failed: %s", src, strerror(errno));
+
+ if (mode == WORKING_DIRECTORY)
+ continue;
+
+ if (cache_name_pos(src, strlen(src)) >= 0) {
+ path_list_insert(src, &deleted);
+
+ /* destination can be a directory with 1 file inside */
+ if (path_list_has_path(&overwritten, dst))
+ path_list_insert(dst, &changed);
+ else
+ path_list_insert(dst, &added);
+ } else
+ path_list_insert(dst, &added);
+ }
+
+ if (show_only) {
+ show_list("Changed : ", &changed);
+ show_list("Adding : ", &added);
+ show_list("Deleting : ", &deleted);
+ } else {
+ for (i = 0; i < changed.nr; i++) {
+ const char *path = changed.items[i].path;
+ int j = cache_name_pos(path, strlen(path));
+ struct cache_entry *ce = active_cache[j];
+
+ if (j < 0)
+ die ("Huh? Cache entry for %s unknown?", path);
+ refresh_cache_entry(ce, 0);
+ }
+
+ for (i = 0; i < added.nr; i++) {
+ const char *path = added.items[i].path;
+ add_file_to_cache(path, verbose);
+ }
+
+ for (i = 0; i < deleted.nr; i++) {
+ const char *path = deleted.items[i].path;
+ remove_file_from_cache(path);
+ cache_tree_invalidate_path(active_cache_tree, path);
+ }
+
+ if (active_cache_changed) {
+ if (write_cache(newfd, active_cache, active_nr) ||
+ close(newfd) ||
+ commit_locked_index(&lock_file))
+ die("Unable to write new index file");
+ }
+ }
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-18 19:10:03 +0000