use get_cached_commit_buffer where appropriate
[gitweb.git] / builtin / mv.c
index 1d3ef63fa32c90d338ab2b0ba1397af2c6de95a3..2a7243f52e413c821f9f75969edcc0a9822c8e21 100644 (file)
@@ -9,15 +9,19 @@
 #include "cache-tree.h"
 #include "string-list.h"
 #include "parse-options.h"
+#include "submodule.h"
 
 static const char * const builtin_mv_usage[] = {
        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, int base_name)
+                                          int count, unsigned flags)
 {
        int i;
        const char **result = xmalloc((count + 1) * sizeof(const char *));
@@ -26,11 +30,12 @@ static const char **internal_copy_pathspec(const char *prefix,
        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]))
+               while (!(flags & KEEP_TRAILING_SLASH) &&
+                      to_copy > 0 && is_dir_sep(result[i][to_copy - 1]))
                        to_copy--;
-               if (to_copy != length || base_name) {
+               if (to_copy != length || flags & DUP_BASENAME) {
                        char *it = xmemdupz(result[i], to_copy);
-                       if (base_name) {
+                       if (flags & DUP_BASENAME) {
                                result[i] = xstrdup(basename(it));
                                free(it);
                        } else
@@ -54,23 +59,25 @@ static const char *add_slash(const char *path)
 }
 
 static struct lock_file lock_file;
+#define SUBMODULE_WITH_GITDIR ((const char *)1)
 
 int cmd_mv(int argc, const char **argv, const char *prefix)
 {
-       int i, newfd;
+       int i, newfd, 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_BOOLEAN('k', NULL, &ignore_errors, N_("skip move/rename errors")),
+               OPT_BOOL('k', NULL, &ignore_errors, N_("skip move/rename errors")),
                OPT_END(),
        };
-       const char **source, **destination, **dest_path;
+       const char **source, **destination, **dest_path, **submodule_gitfile;
        enum update_mode { BOTH = 0, WORKING_DIRECTORY, INDEX } *modes;
        struct stat st;
        struct string_list src_for_dst = STRING_LIST_INIT_NODUP;
 
+       gitmodules_config();
        git_config(git_default_config, NULL);
 
        argc = parse_options(argc, argv, prefix, builtin_mv_options,
@@ -84,15 +91,21 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
 
        source = internal_copy_pathspec(prefix, argv, argc, 0);
        modes = xcalloc(argc, sizeof(enum update_mode));
-       dest_path = internal_copy_pathspec(prefix, argv + argc, 1, 0);
+       /*
+        * Keep trailing slash, needed to let
+        * "git mv file no-such-dir/" error out.
+        */
+       dest_path = internal_copy_pathspec(prefix, argv + argc, 1,
+                                          KEEP_TRAILING_SLASH);
+       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, 1);
+               destination = internal_copy_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, 1);
+               destination = internal_copy_pathspec(dest_path[0], argv, argc, DUP_BASENAME);
        } else {
                if (argc != 1)
                        die("destination '%s' is not a directory", dest_path[0]);
@@ -120,8 +133,18 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
                else if (src_is_dir) {
                        int first = cache_name_pos(src, length);
                        if (first >= 0) {
+                               struct strbuf submodule_dotgit = STRBUF_INIT;
                                if (!S_ISGITLINK(active_cache[first]->ce_mode))
                                        die (_("Huh? Directory %s is in index and no submodule?"), src);
+                               if (!is_staging_gitmodules_ok())
+                                       die (_("Please, stage your changes to .gitmodules or stash them to proceed"));
+                               strbuf_addf(&submodule_dotgit, "%s/.git", src);
+                               submodule_gitfile[i] = read_gitfile(submodule_dotgit.buf);
+                               if (submodule_gitfile[i])
+                                       submodule_gitfile[i] = xstrdup(submodule_gitfile[i]);
+                               else
+                                       submodule_gitfile[i] = SUBMODULE_WITH_GITDIR;
+                               strbuf_release(&submodule_dotgit);
                        } else {
                                const char *src_w_slash = add_slash(src);
                                int last, len_w_slash = length + 1;
@@ -139,7 +162,8 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
                                        if (strncmp(path, src_w_slash, len_w_slash))
                                                break;
                                }
-                               free((char *)src_w_slash);
+                               if (src_w_slash != src)
+                                       free((char *)src_w_slash);
 
                                if (last - first < 1)
                                        bad = _("source directory is empty");
@@ -156,6 +180,9 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
                                                modes = xrealloc(modes,
                                                                (argc + last - first)
                                                                * sizeof(enum update_mode));
+                                               submodule_gitfile = xrealloc(submodule_gitfile,
+                                                               (argc + last - first)
+                                                               * sizeof(char *));
                                        }
 
                                        dst = add_slash(dst);
@@ -169,6 +196,7 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
                                                        prefix_path(dst, dst_len,
                                                                path + length + 1);
                                                modes[argc + j] = INDEX;
+                                               submodule_gitfile[argc + j] = NULL;
                                        }
                                        argc += last - first;
                                }
@@ -191,6 +219,8 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
                        }
                } else if (string_list_has_string(&src_for_dst, dst))
                        bad = _("multiple sources for the same target");
+               else if (is_dir_sep(dst[strlen(dst) - 1]))
+                       bad = _("destination directory does not exist");
                else
                        string_list_insert(&src_for_dst, dst);
 
@@ -202,6 +232,11 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
                                        memmove(destination + i,
                                                destination + i + 1,
                                                (argc - i) * sizeof(char *));
+                                       memmove(modes + i, modes + i + 1,
+                                               (argc - i) * sizeof(enum update_mode));
+                                       memmove(submodule_gitfile + i,
+                                               submodule_gitfile + i + 1,
+                                               (argc - i) * sizeof(char *));
                                        i--;
                                }
                        } else
@@ -216,9 +251,16 @@ 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 &&
-                               rename(src, dst) < 0 && !ignore_errors)
-                       die_errno (_("renaming '%s' failed"), src);
+               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 (mode == WORKING_DIRECTORY)
                        continue;
@@ -229,6 +271,9 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
                        rename_cache_entry_at(pos, dst);
        }
 
+       if (gitmodules_modified)
+               stage_updated_gitmodules();
+
        if (active_cache_changed) {
                if (write_cache(newfd, active_cache, active_nr) ||
                    commit_locked_index(&lock_file))