pager: default to LESS=FRS
[gitweb.git] / builtin-mv.c
index 593ff9e43435d80ba9dd4eff271b8abcb7e97f06..54dd3bfe8ac787fda32f3557faac00c65a61de96 100644 (file)
@@ -17,12 +17,19 @@ static const char builtin_mv_usage[] =
 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;
-       if (base_name) {
-               int i;
-               for (i = 0; i < count; i++) {
+       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;
@@ -42,14 +49,27 @@ static void show_list(const char *label, struct path_list *list)
        }
 }
 
+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, char **envp)
+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 *prefix = setup_git_directory();
        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};
@@ -59,10 +79,7 @@ int cmd_mv(int argc, const char **argv, char **envp)
 
        git_config(git_default_config);
 
-       newfd = hold_lock_file_for_update(&lock_file, get_index_file());
-       if (newfd < 0)
-               die("unable to create new index file");
-
+       newfd = hold_lock_file_for_update(&lock_file, get_index_file(), 1);
        if (read_cache() < 0)
                die("index file corrupt");
 
@@ -87,18 +104,24 @@ int cmd_mv(int argc, const char **argv, char **envp)
                        ignore_errors = 1;
                        continue;
                }
-               die(builtin_mv_usage);
+               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 (!lstat(dest_path[0], &st) && S_ISDIR(st.st_mode))
+       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 {
+       else {
                if (count != 1)
                        usage(builtin_mv_usage);
                destination = dest_path;
@@ -106,15 +129,71 @@ int cmd_mv(int argc, const char **argv, char **envp)
 
        /* 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",
-                               source[i], destination[i]);
+                       printf("Checking rename of '%s' to '%s'\n", src, dst);
 
-               if (lstat(source[i], &st) < 0)
+               length = strlen(src);
+               if (lstat(src, &st) < 0)
                        bad = "bad source";
-               else if (lstat(destination[i], &st) == 0) {
+               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) {
+                       int first, last;
+
+                       modes[i] = WORKING_DIRECTORY;
+
+                       first = cache_name_pos(src, length);
+                       if (first >= 0)
+                               die ("Huh? %s/ is in index?", src);
+
+                       first = -1 - first;
+                       for (last = first; last < active_nr; last++) {
+                               const char *path = active_cache[last]->name;
+                               if (strncmp(path, src, length)
+                                               || path[length] != '/')
+                                       break;
+                       }
+
+                       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) {
                                /*
@@ -126,26 +205,16 @@ int cmd_mv(int argc, const char **argv, char **envp)
                                                        " will overwrite!\n",
                                                        bad);
                                        bad = NULL;
-                                       path_list_insert(destination[i],
-                                                       &overwritten);
+                                       path_list_insert(dst, &overwritten);
                                } else
                                        bad = "Cannot overwrite";
                        }
-               }
-
-               if (!bad &&
-                   !strncmp(destination[i], source[i], strlen(source[i])))
-                       bad = "can not move directory into itself";
-
-               if (!bad && cache_name_pos(source[i], strlen(source[i])) < 0)
+               } else if (cache_name_pos(src, length) < 0)
                        bad = "not under version control";
-
-               if (!bad) {
-                       if (path_list_has_path(&src_for_dst, destination[i]))
-                               bad = "multiple sources for the same target";
-                       else
-                               path_list_insert(destination[i], &src_for_dst);
-               }
+               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) {
@@ -157,31 +226,33 @@ int cmd_mv(int argc, const char **argv, char **envp)
                                                (count - i) * sizeof(char *));
                                }
                        } else
-                               die ("Error: %s, source=%s, destination=%s",
-                                    bad, source[i], destination[i]);
+                               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",
-                              source[i], destination[i]);
-               if (!show_only &&
-                   rename(source[i], destination[i]) < 0 &&
-                   !ignore_errors)
-                       die ("renaming %s failed: %s",
-                            source[i], strerror(errno));
+                       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(source[i], strlen(source[i])) >= 0) {
-                       path_list_insert(source[i], &deleted);
+               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, destination[i]))
-                               path_list_insert(destination[i], &changed);
+                       if (path_list_has_path(&overwritten, dst))
+                               path_list_insert(dst, &changed);
                        else
-                               path_list_insert(destination[i], &added);
+                               path_list_insert(dst, &added);
                } else
-                       path_list_insert(destination[i], &added);
+                       path_list_insert(dst, &added);
        }
 
         if (show_only) {
@@ -191,10 +262,10 @@ int cmd_mv(int argc, const char **argv, char **envp)
        } else {
                for (i = 0; i < changed.nr; i++) {
                        const char *path = changed.items[i].path;
-                       int i = cache_name_pos(path, strlen(path));
-                       struct cache_entry *ce = active_cache[i];
+                       int j = cache_name_pos(path, strlen(path));
+                       struct cache_entry *ce = active_cache[j];
 
-                       if (i < 0)
+                       if (j < 0)
                                die ("Huh? Cache entry for %s unknown?", path);
                        refresh_cache_entry(ce, 0);
                }
@@ -207,6 +278,7 @@ int cmd_mv(int argc, const char **argv, char **envp)
                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) {