| /* |
| * "git mv" builtin command |
| * |
| * Copyright (C) 2006 Johannes Schindelin |
| */ |
| #define USE_THE_INDEX_VARIABLE |
| #include "builtin.h" |
| #include "abspath.h" |
| #include "advice.h" |
| #include "alloc.h" |
| #include "config.h" |
| #include "environment.h" |
| #include "gettext.h" |
| #include "object-file.h" |
| #include "pathspec.h" |
| #include "lockfile.h" |
| #include "dir.h" |
| #include "cache-tree.h" |
| #include "string-list.h" |
| #include "parse-options.h" |
| #include "repository.h" |
| #include "setup.h" |
| #include "submodule.h" |
| #include "entry.h" |
| |
| static const char * const builtin_mv_usage[] = { |
| N_("git mv [<options>] <source>... <destination>"), |
| NULL |
| }; |
| |
| enum update_mode { |
| WORKING_DIRECTORY = (1 << 1), |
| INDEX = (1 << 2), |
| SPARSE = (1 << 3), |
| SKIP_WORKTREE_DIR = (1 << 4), |
| }; |
| |
| #define DUP_BASENAME 1 |
| #define KEEP_TRAILING_SLASH 2 |
| |
| static const char **internal_prefix_pathspec(const char *prefix, |
| const char **pathspec, |
| int count, unsigned flags) |
| { |
| int i; |
| 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(pathspec[i]); |
| int to_copy = length; |
| char *it; |
| while (!(flags & KEEP_TRAILING_SLASH) && |
| to_copy > 0 && is_dir_sep(pathspec[i][to_copy - 1])) |
| to_copy--; |
| |
| it = xmemdupz(pathspec[i], to_copy); |
| if (flags & DUP_BASENAME) { |
| result[i] = xstrdup(basename(it)); |
| free(it); |
| } else { |
| result[i] = it; |
| } |
| } |
| 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) |
| { |
| size_t len = strlen(path); |
| if (len && path[len - 1] != '/') { |
| char *with_slash = xmalloc(st_add(len, 2)); |
| memcpy(with_slash, path, len); |
| with_slash[len++] = '/'; |
| with_slash[len] = 0; |
| return with_slash; |
| } |
| return path; |
| } |
| |
| #define SUBMODULE_WITH_GITDIR ((const char *)1) |
| |
| static void prepare_move_submodule(const char *src, int first, |
| const char **submodule_gitfile) |
| { |
| struct strbuf submodule_dotgit = STRBUF_INIT; |
| if (!S_ISGITLINK(the_index.cache[first]->ce_mode)) |
| die(_("Directory %s is in index and no submodule?"), src); |
| 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); |
| if (*submodule_gitfile) |
| *submodule_gitfile = xstrdup(*submodule_gitfile); |
| else |
| *submodule_gitfile = SUBMODULE_WITH_GITDIR; |
| strbuf_release(&submodule_dotgit); |
| } |
| |
| static int index_range_of_same_dir(const char *src, int length, |
| int *first_p, int *last_p) |
| { |
| const char *src_w_slash = add_slash(src); |
| int first, last, len_w_slash = length + 1; |
| |
| first = index_name_pos(&the_index, src_w_slash, len_w_slash); |
| if (first >= 0) |
| die(_("%.*s is in index"), len_w_slash, src_w_slash); |
| |
| first = -1 - first; |
| for (last = first; last < the_index.cache_nr; last++) { |
| const char *path = the_index.cache[last]->name; |
| if (strncmp(path, src_w_slash, len_w_slash)) |
| break; |
| } |
| if (src_w_slash != src) |
| free((char *)src_w_slash); |
| *first_p = first; |
| *last_p = last; |
| return last - first; |
| } |
| |
| /* |
| * Given the path of a directory that does not exist on-disk, check whether the |
| * directory contains any entries in the index with the SKIP_WORKTREE flag |
| * enabled. |
| * Return 1 if such index entries exist. |
| * Return 0 otherwise. |
| */ |
| static int empty_dir_has_sparse_contents(const char *name) |
| { |
| int ret = 0; |
| const char *with_slash = add_slash(name); |
| int length = strlen(with_slash); |
| |
| int pos = index_name_pos(&the_index, with_slash, length); |
| const struct cache_entry *ce; |
| |
| if (pos < 0) { |
| pos = -pos - 1; |
| if (pos >= the_index.cache_nr) |
| goto free_return; |
| ce = the_index.cache[pos]; |
| if (strncmp(with_slash, ce->name, length)) |
| goto free_return; |
| if (ce_skip_worktree(ce)) |
| ret = 1; |
| } |
| |
| free_return: |
| if (with_slash != name) |
| free((char *)with_slash); |
| return ret; |
| } |
| |
| int cmd_mv(int argc, const char **argv, const char *prefix) |
| { |
| int i, flags, gitmodules_modified = 0; |
| int verbose = 0, show_only = 0, force = 0, ignore_errors = 0, ignore_sparse = 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"), |
| PARSE_OPT_NOCOMPLETE), |
| OPT_BOOL('k', NULL, &ignore_errors, N_("skip move/rename errors")), |
| OPT_BOOL(0, "sparse", &ignore_sparse, N_("allow updating entries outside of the sparse-checkout cone")), |
| OPT_END(), |
| }; |
| const char **source, **destination, **dest_path, **submodule_gitfile; |
| const char *dst_w_slash; |
| const char **src_dir = NULL; |
| int src_dir_nr = 0, src_dir_alloc = 0; |
| struct strbuf a_src_dir = STRBUF_INIT; |
| enum update_mode *modes, dst_mode = 0; |
| struct stat st; |
| struct string_list src_for_dst = STRING_LIST_INIT_NODUP; |
| struct lock_file lock_file = LOCK_INIT; |
| struct cache_entry *ce; |
| struct string_list only_match_skip_worktree = STRING_LIST_INIT_NODUP; |
| struct string_list dirty_paths = STRING_LIST_INIT_NODUP; |
| |
| git_config(git_default_config, NULL); |
| |
| argc = parse_options(argc, argv, prefix, builtin_mv_options, |
| builtin_mv_usage, 0); |
| if (--argc < 1) |
| usage_with_options(builtin_mv_usage, builtin_mv_options); |
| |
| repo_hold_locked_index(the_repository, &lock_file, LOCK_DIE_ON_ERROR); |
| if (repo_read_index(the_repository) < 0) |
| die(_("index file corrupt")); |
| |
| source = internal_prefix_pathspec(prefix, argv, argc, 0); |
| CALLOC_ARRAY(modes, argc); |
| |
| /* |
| * Keep trailing slash, needed to let |
| * "git mv file no-such-dir/" error out, except in the case |
| * "git mv directory no-such-dir/". |
| */ |
| 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); |
| dst_w_slash = add_slash(dest_path[0]); |
| submodule_gitfile = xcalloc(argc, sizeof(char *)); |
| |
| if (dest_path[0][0] == '\0') |
| /* special case: "." was normalized to "" */ |
| destination = internal_prefix_pathspec(dest_path[0], argv, argc, DUP_BASENAME); |
| else if (!lstat(dest_path[0], &st) && |
| S_ISDIR(st.st_mode)) { |
| destination = internal_prefix_pathspec(dst_w_slash, argv, argc, DUP_BASENAME); |
| } else { |
| if (!path_in_sparse_checkout(dst_w_slash, &the_index) && |
| empty_dir_has_sparse_contents(dst_w_slash)) { |
| destination = internal_prefix_pathspec(dst_w_slash, argv, argc, DUP_BASENAME); |
| dst_mode = SKIP_WORKTREE_DIR; |
| } else if (argc != 1) { |
| die(_("destination '%s' is not a directory"), dest_path[0]); |
| } else { |
| destination = dest_path; |
| /* |
| * <destination> is a file outside of sparse-checkout |
| * cone. Insist on cone mode here for backward |
| * compatibility. We don't want dst_mode to be assigned |
| * for a file when the repo is using no-cone mode (which |
| * is deprecated at this point) sparse-checkout. As |
| * SPARSE here is only considering cone-mode situation. |
| */ |
| if (!path_in_cone_mode_sparse_checkout(destination[0], &the_index)) |
| dst_mode = SPARSE; |
| } |
| } |
| if (dst_w_slash != dest_path[0]) { |
| free((char *)dst_w_slash); |
| dst_w_slash = NULL; |
| } |
| |
| /* Checking */ |
| for (i = 0; i < argc; i++) { |
| const char *src = source[i], *dst = destination[i]; |
| int length; |
| const char *bad = NULL; |
| int skip_sparse = 0; |
| |
| if (show_only) |
| printf(_("Checking rename of '%s' to '%s'\n"), src, dst); |
| |
| length = strlen(src); |
| if (lstat(src, &st) < 0) { |
| int pos; |
| const struct cache_entry *ce; |
| |
| pos = index_name_pos(&the_index, src, length); |
| if (pos < 0) { |
| const char *src_w_slash = add_slash(src); |
| if (!path_in_sparse_checkout(src_w_slash, &the_index) && |
| empty_dir_has_sparse_contents(src)) { |
| modes[i] |= SKIP_WORKTREE_DIR; |
| goto dir_check; |
| } |
| /* only error if existence is expected. */ |
| if (!(modes[i] & SPARSE)) |
| bad = _("bad source"); |
| goto act_on_entry; |
| } |
| ce = the_index.cache[pos]; |
| if (!ce_skip_worktree(ce)) { |
| bad = _("bad source"); |
| goto act_on_entry; |
| } |
| if (!ignore_sparse) { |
| string_list_append(&only_match_skip_worktree, src); |
| goto act_on_entry; |
| } |
| /* Check if dst exists in index */ |
| if (index_name_pos(&the_index, dst, strlen(dst)) < 0) { |
| modes[i] |= SPARSE; |
| goto act_on_entry; |
| } |
| if (!force) { |
| bad = _("destination exists"); |
| goto act_on_entry; |
| } |
| modes[i] |= SPARSE; |
| goto act_on_entry; |
| } |
| if (!strncmp(src, dst, length) && |
| (dst[length] == 0 || dst[length] == '/')) { |
| bad = _("can not move directory into itself"); |
| goto act_on_entry; |
| } |
| if (S_ISDIR(st.st_mode) |
| && lstat(dst, &st) == 0) { |
| bad = _("cannot move directory over file"); |
| goto act_on_entry; |
| } |
| |
| dir_check: |
| if (S_ISDIR(st.st_mode)) { |
| int j, dst_len, n; |
| int first = index_name_pos(&the_index, src, length), last; |
| |
| if (first >= 0) { |
| prepare_move_submodule(src, first, |
| submodule_gitfile + i); |
| goto act_on_entry; |
| } else if (index_range_of_same_dir(src, length, |
| &first, &last) < 1) { |
| bad = _("source directory is empty"); |
| goto act_on_entry; |
| } |
| |
| /* last - first >= 1 */ |
| modes[i] |= WORKING_DIRECTORY; |
| |
| ALLOC_GROW(src_dir, src_dir_nr + 1, src_dir_alloc); |
| src_dir[src_dir_nr++] = src; |
| |
| n = argc + last - first; |
| REALLOC_ARRAY(source, n); |
| REALLOC_ARRAY(destination, n); |
| REALLOC_ARRAY(modes, n); |
| REALLOC_ARRAY(submodule_gitfile, n); |
| |
| dst = add_slash(dst); |
| dst_len = strlen(dst); |
| |
| for (j = 0; j < last - first; j++) { |
| const struct cache_entry *ce = the_index.cache[first + j]; |
| const char *path = ce->name; |
| source[argc + j] = path; |
| destination[argc + j] = |
| prefix_path(dst, dst_len, path + length + 1); |
| memset(modes + argc + j, 0, sizeof(enum update_mode)); |
| modes[argc + j] |= ce_skip_worktree(ce) ? SPARSE : INDEX; |
| submodule_gitfile[argc + j] = NULL; |
| } |
| argc += last - first; |
| goto act_on_entry; |
| } |
| if (!(ce = index_file_exists(&the_index, src, length, 0))) { |
| bad = _("not under version control"); |
| goto act_on_entry; |
| } |
| if (ce_stage(ce)) { |
| bad = _("conflicted"); |
| goto act_on_entry; |
| } |
| if (lstat(dst, &st) == 0 && |
| (!ignore_case || strcasecmp(src, dst))) { |
| bad = _("destination exists"); |
| if (force) { |
| /* |
| * only files can overwrite each other: |
| * check both source and destination |
| */ |
| if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) { |
| if (verbose) |
| warning(_("overwriting '%s'"), dst); |
| bad = NULL; |
| } else |
| bad = _("Cannot overwrite"); |
| } |
| goto act_on_entry; |
| } |
| if (string_list_has_string(&src_for_dst, dst)) { |
| bad = _("multiple sources for the same target"); |
| goto act_on_entry; |
| } |
| if (is_dir_sep(dst[strlen(dst) - 1])) { |
| bad = _("destination directory does not exist"); |
| goto act_on_entry; |
| } |
| |
| if (ignore_sparse && |
| (dst_mode & (SKIP_WORKTREE_DIR | SPARSE)) && |
| index_entry_exists(&the_index, dst, strlen(dst))) { |
| bad = _("destination exists in the index"); |
| if (force) { |
| if (verbose) |
| warning(_("overwriting '%s'"), dst); |
| bad = NULL; |
| } else { |
| goto act_on_entry; |
| } |
| } |
| /* |
| * We check if the paths are in the sparse-checkout |
| * definition as a very final check, since that |
| * allows us to point the user to the --sparse |
| * option as a way to have a successful run. |
| */ |
| if (!ignore_sparse && |
| !path_in_sparse_checkout(src, &the_index)) { |
| string_list_append(&only_match_skip_worktree, src); |
| skip_sparse = 1; |
| } |
| if (!ignore_sparse && |
| !path_in_sparse_checkout(dst, &the_index)) { |
| string_list_append(&only_match_skip_worktree, dst); |
| skip_sparse = 1; |
| } |
| |
| if (skip_sparse) |
| goto remove_entry; |
| |
| string_list_insert(&src_for_dst, dst); |
| |
| act_on_entry: |
| if (!bad) |
| continue; |
| if (!ignore_errors) |
| die(_("%s, source=%s, destination=%s"), |
| bad, src, dst); |
| remove_entry: |
| if (--argc > 0) { |
| int n = argc - i; |
| MOVE_ARRAY(source + i, source + i + 1, n); |
| MOVE_ARRAY(destination + i, destination + i + 1, n); |
| MOVE_ARRAY(modes + i, modes + i + 1, n); |
| MOVE_ARRAY(submodule_gitfile + i, |
| submodule_gitfile + i + 1, n); |
| i--; |
| } |
| } |
| |
| if (only_match_skip_worktree.nr) { |
| advise_on_updating_sparse_paths(&only_match_skip_worktree); |
| if (!ignore_errors) |
| return 1; |
| } |
| |
| for (i = 0; i < argc; i++) { |
| const char *src = source[i], *dst = destination[i]; |
| enum update_mode mode = modes[i]; |
| int pos; |
| int sparse_and_dirty = 0; |
| struct checkout state = CHECKOUT_INIT; |
| state.istate = &the_index; |
| |
| if (force) |
| state.force = 1; |
| if (show_only || verbose) |
| printf(_("Renaming %s to %s\n"), src, dst); |
| if (show_only) |
| continue; |
| if (!(mode & (INDEX | SPARSE | SKIP_WORKTREE_DIR)) && |
| !(dst_mode & (SKIP_WORKTREE_DIR | SPARSE)) && |
| 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 | SKIP_WORKTREE_DIR)) |
| continue; |
| |
| pos = index_name_pos(&the_index, src, strlen(src)); |
| assert(pos >= 0); |
| if (!(mode & SPARSE) && !lstat(src, &st)) |
| sparse_and_dirty = ie_modified(&the_index, |
| the_index.cache[pos], |
| &st, |
| 0); |
| rename_index_entry_at(&the_index, pos, dst); |
| |
| if (ignore_sparse && |
| core_apply_sparse_checkout && |
| core_sparse_checkout_cone) { |
| /* |
| * NEEDSWORK: we are *not* paying attention to |
| * "out-to-out" move (<source> is out-of-cone and |
| * <destination> is out-of-cone) at this point. It |
| * should be added in a future patch. |
| */ |
| if ((mode & SPARSE) && |
| path_in_sparse_checkout(dst, &the_index)) { |
| /* from out-of-cone to in-cone */ |
| int dst_pos = index_name_pos(&the_index, dst, |
| strlen(dst)); |
| struct cache_entry *dst_ce = the_index.cache[dst_pos]; |
| |
| dst_ce->ce_flags &= ~CE_SKIP_WORKTREE; |
| |
| if (checkout_entry(dst_ce, &state, NULL, NULL)) |
| die(_("cannot checkout %s"), dst_ce->name); |
| } else if ((dst_mode & (SKIP_WORKTREE_DIR | SPARSE)) && |
| !(mode & SPARSE) && |
| !path_in_sparse_checkout(dst, &the_index)) { |
| /* from in-cone to out-of-cone */ |
| int dst_pos = index_name_pos(&the_index, dst, |
| strlen(dst)); |
| struct cache_entry *dst_ce = the_index.cache[dst_pos]; |
| |
| /* |
| * if src is clean, it will suffice to remove it |
| */ |
| if (!sparse_and_dirty) { |
| dst_ce->ce_flags |= CE_SKIP_WORKTREE; |
| unlink_or_warn(src); |
| } else { |
| /* |
| * if src is dirty, move it to the |
| * destination and create leading |
| * dirs if necessary |
| */ |
| char *dst_dup = xstrdup(dst); |
| string_list_append(&dirty_paths, dst); |
| safe_create_leading_directories(dst_dup); |
| FREE_AND_NULL(dst_dup); |
| rename(src, dst); |
| } |
| } |
| } |
| } |
| |
| /* |
| * cleanup the empty src_dirs |
| */ |
| for (i = 0; i < src_dir_nr; i++) { |
| int dummy; |
| strbuf_addstr(&a_src_dir, src_dir[i]); |
| /* |
| * if entries under a_src_dir are all moved away, |
| * recursively remove a_src_dir to cleanup |
| */ |
| if (index_range_of_same_dir(a_src_dir.buf, a_src_dir.len, |
| &dummy, &dummy) < 1) { |
| remove_dir_recursively(&a_src_dir, 0); |
| } |
| strbuf_reset(&a_src_dir); |
| } |
| |
| strbuf_release(&a_src_dir); |
| free(src_dir); |
| |
| if (dirty_paths.nr) |
| advise_on_moving_dirty_path(&dirty_paths); |
| |
| if (gitmodules_modified) |
| stage_updated_gitmodules(&the_index); |
| |
| if (write_locked_index(&the_index, &lock_file, |
| COMMIT_LOCK | SKIP_IF_UNCHANGED)) |
| die(_("Unable to write new index file")); |
| |
| string_list_clear(&src_for_dst, 0); |
| string_list_clear(&dirty_paths, 0); |
| UNLEAK(source); |
| UNLEAK(dest_path); |
| free(submodule_gitfile); |
| free(modes); |
| return 0; |
| } |