mirror of
https://github.com/git/git.git
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0656781fad
Currently using "git mv" on a submodule moves the submodule's work tree in that of the superproject. But the submodule's path setting in .gitmodules is left untouched, which is now inconsistent with the work tree and makes git commands that rely on the proper path -> name mapping (like status and diff) behave strangely. Let "git mv" help here by not only moving the submodule's work tree but also updating the "submodule.<submodule name>.path" setting from the .gitmodules file and stage both. This doesn't happen when no .gitmodules file is found and only issues a warning when it doesn't have a section for this submodule. This is because the user might just use plain gitlinks without the .gitmodules file or has already updated the path setting by hand before issuing the "git mv" command (in which case the warning reminds him that mv would have done that for him). Only when .gitmodules is found and contains merge conflicts the mv command will fail and tell the user to resolve the conflict before trying again. Also extend the man page to inform the user about this new feature. Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
258 lines
7.2 KiB
C
258 lines
7.2 KiB
C
/*
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* "git mv" builtin command
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*
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* Copyright (C) 2006 Johannes Schindelin
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*/
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#include "cache.h"
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#include "builtin.h"
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#include "dir.h"
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#include "cache-tree.h"
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#include "string-list.h"
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#include "parse-options.h"
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#include "submodule.h"
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static const char * const builtin_mv_usage[] = {
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N_("git mv [options] <source>... <destination>"),
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NULL
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};
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static const char **internal_copy_pathspec(const char *prefix,
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const char **pathspec,
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int count, int base_name)
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{
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int i;
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const char **result = xmalloc((count + 1) * sizeof(const char *));
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memcpy(result, pathspec, count * sizeof(const char *));
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result[count] = NULL;
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for (i = 0; i < count; i++) {
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int length = strlen(result[i]);
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int to_copy = length;
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while (to_copy > 0 && is_dir_sep(result[i][to_copy - 1]))
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to_copy--;
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if (to_copy != length || base_name) {
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char *it = xmemdupz(result[i], to_copy);
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if (base_name) {
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result[i] = xstrdup(basename(it));
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free(it);
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} else
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result[i] = it;
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}
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}
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return get_pathspec(prefix, result);
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}
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static const char *add_slash(const char *path)
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{
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int len = strlen(path);
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if (path[len - 1] != '/') {
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char *with_slash = xmalloc(len + 2);
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memcpy(with_slash, path, len);
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with_slash[len++] = '/';
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with_slash[len] = 0;
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return with_slash;
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}
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return path;
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}
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static struct lock_file lock_file;
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int cmd_mv(int argc, const char **argv, const char *prefix)
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{
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int i, newfd, gitmodules_modified = 0;
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int verbose = 0, show_only = 0, force = 0, ignore_errors = 0;
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struct option builtin_mv_options[] = {
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OPT__VERBOSE(&verbose, N_("be verbose")),
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OPT__DRY_RUN(&show_only, N_("dry run")),
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OPT__FORCE(&force, N_("force move/rename even if target exists")),
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OPT_BOOLEAN('k', NULL, &ignore_errors, N_("skip move/rename errors")),
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OPT_END(),
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};
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const char **source, **destination, **dest_path, **submodule_gitfile;
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enum update_mode { BOTH = 0, WORKING_DIRECTORY, INDEX } *modes;
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struct stat st;
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struct string_list src_for_dst = STRING_LIST_INIT_NODUP;
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gitmodules_config();
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git_config(git_default_config, NULL);
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argc = parse_options(argc, argv, prefix, builtin_mv_options,
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builtin_mv_usage, 0);
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if (--argc < 1)
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usage_with_options(builtin_mv_usage, builtin_mv_options);
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newfd = hold_locked_index(&lock_file, 1);
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if (read_cache() < 0)
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die(_("index file corrupt"));
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source = internal_copy_pathspec(prefix, argv, argc, 0);
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modes = xcalloc(argc, sizeof(enum update_mode));
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dest_path = internal_copy_pathspec(prefix, argv + argc, 1, 0);
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submodule_gitfile = xcalloc(argc, sizeof(char *));
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if (dest_path[0][0] == '\0')
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/* special case: "." was normalized to "" */
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destination = internal_copy_pathspec(dest_path[0], argv, argc, 1);
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else if (!lstat(dest_path[0], &st) &&
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S_ISDIR(st.st_mode)) {
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dest_path[0] = add_slash(dest_path[0]);
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destination = internal_copy_pathspec(dest_path[0], argv, argc, 1);
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} else {
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if (argc != 1)
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die("destination '%s' is not a directory", dest_path[0]);
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destination = dest_path;
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}
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/* Checking */
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for (i = 0; i < argc; i++) {
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const char *src = source[i], *dst = destination[i];
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int length, src_is_dir;
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const char *bad = NULL;
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if (show_only)
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printf(_("Checking rename of '%s' to '%s'\n"), src, dst);
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length = strlen(src);
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if (lstat(src, &st) < 0)
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bad = _("bad source");
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else if (!strncmp(src, dst, length) &&
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(dst[length] == 0 || dst[length] == '/')) {
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bad = _("can not move directory into itself");
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} else if ((src_is_dir = S_ISDIR(st.st_mode))
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&& lstat(dst, &st) == 0)
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bad = _("cannot move directory over file");
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else if (src_is_dir) {
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int first = cache_name_pos(src, length);
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if (first >= 0) {
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struct strbuf submodule_dotgit = STRBUF_INIT;
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if (!S_ISGITLINK(active_cache[first]->ce_mode))
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die (_("Huh? Directory %s is in index and no submodule?"), src);
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if (!is_staging_gitmodules_ok())
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die (_("Please, stage your changes to .gitmodules or stash them to proceed"));
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strbuf_addf(&submodule_dotgit, "%s/.git", src);
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submodule_gitfile[i] = read_gitfile(submodule_dotgit.buf);
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if (submodule_gitfile[i])
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submodule_gitfile[i] = xstrdup(submodule_gitfile[i]);
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strbuf_release(&submodule_dotgit);
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} else {
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const char *src_w_slash = add_slash(src);
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int last, len_w_slash = length + 1;
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modes[i] = WORKING_DIRECTORY;
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first = cache_name_pos(src_w_slash, len_w_slash);
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if (first >= 0)
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die (_("Huh? %.*s is in index?"),
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len_w_slash, src_w_slash);
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first = -1 - first;
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for (last = first; last < active_nr; last++) {
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const char *path = active_cache[last]->name;
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if (strncmp(path, src_w_slash, len_w_slash))
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break;
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}
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free((char *)src_w_slash);
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if (last - first < 1)
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bad = _("source directory is empty");
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else {
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int j, dst_len;
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if (last - first > 0) {
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source = xrealloc(source,
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(argc + last - first)
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* sizeof(char *));
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destination = xrealloc(destination,
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(argc + last - first)
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* sizeof(char *));
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modes = xrealloc(modes,
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(argc + last - first)
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* sizeof(enum update_mode));
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}
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dst = add_slash(dst);
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dst_len = strlen(dst);
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for (j = 0; j < last - first; j++) {
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const char *path =
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active_cache[first + j]->name;
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source[argc + j] = path;
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destination[argc + j] =
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prefix_path(dst, dst_len,
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path + length + 1);
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modes[argc + j] = INDEX;
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}
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argc += last - first;
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}
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}
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} else if (cache_name_pos(src, length) < 0)
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bad = _("not under version control");
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else if (lstat(dst, &st) == 0) {
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bad = _("destination exists");
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if (force) {
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/*
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* only files can overwrite each other:
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* check both source and destination
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*/
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if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) {
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if (verbose)
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warning(_("overwriting '%s'"), dst);
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bad = NULL;
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} else
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bad = _("Cannot overwrite");
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}
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} else if (string_list_has_string(&src_for_dst, dst))
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bad = _("multiple sources for the same target");
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else
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string_list_insert(&src_for_dst, dst);
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if (bad) {
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if (ignore_errors) {
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if (--argc > 0) {
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memmove(source + i, source + i + 1,
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(argc - i) * sizeof(char *));
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memmove(destination + i,
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destination + i + 1,
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(argc - i) * sizeof(char *));
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i--;
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}
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} else
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die (_("%s, source=%s, destination=%s"),
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bad, src, dst);
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}
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}
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for (i = 0; i < argc; i++) {
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const char *src = source[i], *dst = destination[i];
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enum update_mode mode = modes[i];
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int pos;
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if (show_only || verbose)
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printf(_("Renaming %s to %s\n"), src, dst);
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if (!show_only && mode != INDEX) {
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if (rename(src, dst) < 0 && !ignore_errors)
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die_errno (_("renaming '%s' failed"), src);
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if (submodule_gitfile[i])
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connect_work_tree_and_git_dir(dst, submodule_gitfile[i]);
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if (!update_path_in_gitmodules(src, dst))
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gitmodules_modified = 1;
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}
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if (mode == WORKING_DIRECTORY)
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continue;
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pos = cache_name_pos(src, strlen(src));
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assert(pos >= 0);
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if (!show_only)
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rename_cache_entry_at(pos, dst);
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}
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if (gitmodules_modified)
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stage_updated_gitmodules();
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if (active_cache_changed) {
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if (write_cache(newfd, active_cache, active_nr) ||
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commit_locked_index(&lock_file))
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die(_("Unable to write new index file"));
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}
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return 0;
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}
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