Imported Upstream version 2.21.0
[platform/upstream/git.git] / builtin / mv.c
index 563d05b..be15ba7 100644 (file)
@@ -3,7 +3,10 @@
  *
  * Copyright (C) 2006 Johannes Schindelin
  */
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "builtin.h"
+#include "config.h"
+#include "pathspec.h"
 #include "lockfile.h"
 #include "dir.h"
 #include "cache-tree.h"
 #include "submodule.h"
 
 static const char * const builtin_mv_usage[] = {
-       N_("git mv [options] <source>... <destination>"),
+       N_("git mv [<options>] <source>... <destination>"),
        NULL
 };
 
 #define DUP_BASENAME 1
 #define KEEP_TRAILING_SLASH 2
 
-static const char **internal_copy_pathspec(const char *prefix,
-                                          const char **pathspec,
-                                          int count, unsigned flags)
+static const char **internal_prefix_pathspec(const char *prefix,
+                                            const char **pathspec,
+                                            int count, unsigned flags)
 {
        int i;
-       const char **result = xmalloc((count + 1) * sizeof(const char *));
-       memcpy(result, pathspec, count * sizeof(const char *));
-       result[count] = NULL;
+       const char **result;
+       int prefixlen = prefix ? strlen(prefix) : 0;
+       ALLOC_ARRAY(result, count + 1);
+
+       /* Create an intermediate copy of the pathspec based on the flags */
        for (i = 0; i < count; i++) {
-               int length = strlen(result[i]);
+               int length = strlen(pathspec[i]);
                int to_copy = length;
+               char *it;
                while (!(flags & KEEP_TRAILING_SLASH) &&
-                      to_copy > 0 && is_dir_sep(result[i][to_copy - 1]))
+                      to_copy > 0 && is_dir_sep(pathspec[i][to_copy - 1]))
                        to_copy--;
-               if (to_copy != length || flags & DUP_BASENAME) {
-                       char *it = xmemdupz(result[i], to_copy);
-                       if (flags & DUP_BASENAME) {
-                               result[i] = xstrdup(basename(it));
-                               free(it);
-                       } else
-                               result[i] = it;
+
+               it = xmemdupz(pathspec[i], to_copy);
+               if (flags & DUP_BASENAME) {
+                       result[i] = xstrdup(basename(it));
+                       free(it);
+               } else {
+                       result[i] = it;
                }
        }
-       return get_pathspec(prefix, result);
+       result[count] = NULL;
+
+       /* Prefix the pathspec and free the old intermediate strings */
+       for (i = 0; i < count; i++) {
+               const char *match = prefix_path(prefix, prefixlen, result[i]);
+               free((char *) result[i]);
+               result[i] = match;
+       }
+
+       return result;
 }
 
 static const char *add_slash(const char *path)
 {
-       int len = strlen(path);
+       size_t len = strlen(path);
        if (path[len - 1] != '/') {
-               char *with_slash = xmalloc(len + 2);
+               char *with_slash = xmalloc(st_add(len, 2));
                memcpy(with_slash, path, len);
                with_slash[len++] = '/';
                with_slash[len] = 0;
@@ -58,7 +73,6 @@ static const char *add_slash(const char *path)
        return path;
 }
 
-static struct lock_file lock_file;
 #define SUBMODULE_WITH_GITDIR ((const char *)1)
 
 static void prepare_move_submodule(const char *src, int first,
@@ -67,7 +81,7 @@ static void prepare_move_submodule(const char *src, int first,
        struct strbuf submodule_dotgit = STRBUF_INIT;
        if (!S_ISGITLINK(active_cache[first]->ce_mode))
                die(_("Directory %s is in index and no submodule?"), src);
-       if (!is_staging_gitmodules_ok())
+       if (!is_staging_gitmodules_ok(&the_index))
                die(_("Please stage your changes to .gitmodules or stash them to proceed"));
        strbuf_addf(&submodule_dotgit, "%s/.git", src);
        *submodule_gitfile = read_gitfile(submodule_dotgit.buf);
@@ -103,12 +117,13 @@ static int index_range_of_same_dir(const char *src, int length,
 
 int cmd_mv(int argc, const char **argv, const char *prefix)
 {
-       int i, gitmodules_modified = 0;
+       int i, flags, gitmodules_modified = 0;
        int verbose = 0, show_only = 0, force = 0, ignore_errors = 0;
        struct option builtin_mv_options[] = {
                OPT__VERBOSE(&verbose, N_("be verbose")),
                OPT__DRY_RUN(&show_only, N_("dry run")),
-               OPT__FORCE(&force, N_("force move/rename even if target exists")),
+               OPT__FORCE(&force, N_("force move/rename even if target exists"),
+                          PARSE_OPT_NOCOMPLETE),
                OPT_BOOL('k', NULL, &ignore_errors, N_("skip move/rename errors")),
                OPT_END(),
        };
@@ -116,8 +131,8 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
        enum update_mode { BOTH = 0, WORKING_DIRECTORY, INDEX } *modes;
        struct stat st;
        struct string_list src_for_dst = STRING_LIST_INIT_NODUP;
+       struct lock_file lock_file = LOCK_INIT;
 
-       gitmodules_config();
        git_config(git_default_config, NULL);
 
        argc = parse_options(argc, argv, prefix, builtin_mv_options,
@@ -125,27 +140,30 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
        if (--argc < 1)
                usage_with_options(builtin_mv_usage, builtin_mv_options);
 
-       hold_locked_index(&lock_file, 1);
+       hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR);
        if (read_cache() < 0)
                die(_("index file corrupt"));
 
-       source = internal_copy_pathspec(prefix, argv, argc, 0);
+       source = internal_prefix_pathspec(prefix, argv, argc, 0);
        modes = xcalloc(argc, sizeof(enum update_mode));
        /*
         * Keep trailing slash, needed to let
-        * "git mv file no-such-dir/" error out.
+        * "git mv file no-such-dir/" error out, except in the case
+        * "git mv directory no-such-dir/".
         */
-       dest_path = internal_copy_pathspec(prefix, argv + argc, 1,
-                                          KEEP_TRAILING_SLASH);
+       flags = KEEP_TRAILING_SLASH;
+       if (argc == 1 && is_directory(argv[0]) && !is_directory(argv[1]))
+               flags = 0;
+       dest_path = internal_prefix_pathspec(prefix, argv + argc, 1, flags);
        submodule_gitfile = xcalloc(argc, sizeof(char *));
 
        if (dest_path[0][0] == '\0')
                /* special case: "." was normalized to "" */
-               destination = internal_copy_pathspec(dest_path[0], argv, argc, DUP_BASENAME);
+               destination = internal_prefix_pathspec(dest_path[0], argv, argc, DUP_BASENAME);
        else if (!lstat(dest_path[0], &st) &&
                        S_ISDIR(st.st_mode)) {
                dest_path[0] = add_slash(dest_path[0]);
-               destination = internal_copy_pathspec(dest_path[0], argv, argc, DUP_BASENAME);
+               destination = internal_prefix_pathspec(dest_path[0], argv, argc, DUP_BASENAME);
        } else {
                if (argc != 1)
                        die(_("destination '%s' is not a directory"), dest_path[0]);
@@ -251,15 +269,20 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
                int pos;
                if (show_only || verbose)
                        printf(_("Renaming %s to %s\n"), src, dst);
-               if (!show_only && mode != INDEX) {
-                       if (rename(src, dst) < 0 && !ignore_errors)
-                               die_errno(_("renaming '%s' failed"), src);
-                       if (submodule_gitfile[i]) {
-                               if (submodule_gitfile[i] != SUBMODULE_WITH_GITDIR)
-                                       connect_work_tree_and_git_dir(dst, submodule_gitfile[i]);
-                               if (!update_path_in_gitmodules(src, dst))
-                                       gitmodules_modified = 1;
-                       }
+               if (show_only)
+                       continue;
+               if (mode != INDEX && rename(src, dst) < 0) {
+                       if (ignore_errors)
+                               continue;
+                       die_errno(_("renaming '%s' failed"), src);
+               }
+               if (submodule_gitfile[i]) {
+                       if (!update_path_in_gitmodules(src, dst))
+                               gitmodules_modified = 1;
+                       if (submodule_gitfile[i] != SUBMODULE_WITH_GITDIR)
+                               connect_work_tree_and_git_dir(dst,
+                                                             submodule_gitfile[i],
+                                                             1);
                }
 
                if (mode == WORKING_DIRECTORY)
@@ -267,15 +290,14 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
 
                pos = cache_name_pos(src, strlen(src));
                assert(pos >= 0);
-               if (!show_only)
-                       rename_cache_entry_at(pos, dst);
+               rename_cache_entry_at(pos, dst);
        }
 
        if (gitmodules_modified)
-               stage_updated_gitmodules();
+               stage_updated_gitmodules(&the_index);
 
-       if (active_cache_changed &&
-           write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
+       if (write_locked_index(&the_index, &lock_file,
+                              COMMIT_LOCK | SKIP_IF_UNCHANGED))
                die(_("Unable to write new index file"));
 
        return 0;