| /* |
| * "git rm" builtin command |
| * |
| * Copyright (C) Linus Torvalds 2006 |
| */ |
| #include "cache.h" |
| #include "builtin.h" |
| #include "dir.h" |
| #include "cache-tree.h" |
| #include "tree-walk.h" |
| #include "parse-options.h" |
| #include "string-list.h" |
| #include "submodule.h" |
| #include "pathspec.h" |
| |
| static const char * const builtin_rm_usage[] = { |
| N_("git rm [options] [--] <file>..."), |
| NULL |
| }; |
| |
| static struct { |
| int nr, alloc; |
| struct { |
| const char *name; |
| char is_submodule; |
| } *entry; |
| } list; |
| |
| static int get_ours_cache_pos(const char *path, int pos) |
| { |
| int i = -pos - 1; |
| |
| while ((i < active_nr) && !strcmp(active_cache[i]->name, path)) { |
| if (ce_stage(active_cache[i]) == 2) |
| return i; |
| i++; |
| } |
| return -1; |
| } |
| |
| static void print_error_files(struct string_list *files_list, |
| const char *main_msg, |
| const char *hints_msg, |
| int *errs) |
| { |
| if (files_list->nr) { |
| int i; |
| struct strbuf err_msg = STRBUF_INIT; |
| |
| strbuf_addstr(&err_msg, main_msg); |
| for (i = 0; i < files_list->nr; i++) |
| strbuf_addf(&err_msg, |
| "\n %s", |
| files_list->items[i].string); |
| if (advice_rm_hints) |
| strbuf_addstr(&err_msg, hints_msg); |
| *errs = error("%s", err_msg.buf); |
| strbuf_release(&err_msg); |
| } |
| } |
| |
| static void error_removing_concrete_submodules(struct string_list *files, int *errs) |
| { |
| print_error_files(files, |
| Q_("the following submodule (or one of its nested " |
| "submodules)\n" |
| "uses a .git directory:", |
| "the following submodules (or one of its nested " |
| "submodules)\n" |
| "use a .git directory:", files->nr), |
| _("\n(use 'rm -rf' if you really want to remove " |
| "it including all of its history)"), |
| errs); |
| string_list_clear(files, 0); |
| } |
| |
| static int check_submodules_use_gitfiles(void) |
| { |
| int i; |
| int errs = 0; |
| struct string_list files = STRING_LIST_INIT_NODUP; |
| |
| for (i = 0; i < list.nr; i++) { |
| const char *name = list.entry[i].name; |
| int pos; |
| const struct cache_entry *ce; |
| struct stat st; |
| |
| pos = cache_name_pos(name, strlen(name)); |
| if (pos < 0) { |
| pos = get_ours_cache_pos(name, pos); |
| if (pos < 0) |
| continue; |
| } |
| ce = active_cache[pos]; |
| |
| if (!S_ISGITLINK(ce->ce_mode) || |
| (lstat(ce->name, &st) < 0) || |
| is_empty_dir(name)) |
| continue; |
| |
| if (!submodule_uses_gitfile(name)) |
| string_list_append(&files, name); |
| } |
| |
| error_removing_concrete_submodules(&files, &errs); |
| |
| return errs; |
| } |
| |
| static int check_local_mod(unsigned char *head, int index_only) |
| { |
| /* |
| * Items in list are already sorted in the cache order, |
| * so we could do this a lot more efficiently by using |
| * tree_desc based traversal if we wanted to, but I am |
| * lazy, and who cares if removal of files is a tad |
| * slower than the theoretical maximum speed? |
| */ |
| int i, no_head; |
| int errs = 0; |
| struct string_list files_staged = STRING_LIST_INIT_NODUP; |
| struct string_list files_cached = STRING_LIST_INIT_NODUP; |
| struct string_list files_submodule = STRING_LIST_INIT_NODUP; |
| struct string_list files_local = STRING_LIST_INIT_NODUP; |
| |
| no_head = is_null_sha1(head); |
| for (i = 0; i < list.nr; i++) { |
| struct stat st; |
| int pos; |
| const struct cache_entry *ce; |
| const char *name = list.entry[i].name; |
| unsigned char sha1[20]; |
| unsigned mode; |
| int local_changes = 0; |
| int staged_changes = 0; |
| |
| pos = cache_name_pos(name, strlen(name)); |
| if (pos < 0) { |
| /* |
| * Skip unmerged entries except for populated submodules |
| * that could lose history when removed. |
| */ |
| pos = get_ours_cache_pos(name, pos); |
| if (pos < 0) |
| continue; |
| |
| if (!S_ISGITLINK(active_cache[pos]->ce_mode) || |
| is_empty_dir(name)) |
| continue; |
| } |
| ce = active_cache[pos]; |
| |
| if (lstat(ce->name, &st) < 0) { |
| if (errno != ENOENT && errno != ENOTDIR) |
| warning("'%s': %s", ce->name, strerror(errno)); |
| /* It already vanished from the working tree */ |
| continue; |
| } |
| else if (S_ISDIR(st.st_mode)) { |
| /* if a file was removed and it is now a |
| * directory, that is the same as ENOENT as |
| * far as git is concerned; we do not track |
| * directories unless they are submodules. |
| */ |
| if (!S_ISGITLINK(ce->ce_mode)) |
| continue; |
| } |
| |
| /* |
| * "rm" of a path that has changes need to be treated |
| * carefully not to allow losing local changes |
| * accidentally. A local change could be (1) file in |
| * work tree is different since the index; and/or (2) |
| * the user staged a content that is different from |
| * the current commit in the index. |
| * |
| * In such a case, you would need to --force the |
| * removal. However, "rm --cached" (remove only from |
| * the index) is safe if the index matches the file in |
| * the work tree or the HEAD commit, as it means that |
| * the content being removed is available elsewhere. |
| */ |
| |
| /* |
| * Is the index different from the file in the work tree? |
| * If it's a submodule, is its work tree modified? |
| */ |
| if (ce_match_stat(ce, &st, 0) || |
| (S_ISGITLINK(ce->ce_mode) && |
| !ok_to_remove_submodule(ce->name))) |
| local_changes = 1; |
| |
| /* |
| * Is the index different from the HEAD commit? By |
| * definition, before the very initial commit, |
| * anything staged in the index is treated by the same |
| * way as changed from the HEAD. |
| */ |
| if (no_head |
| || get_tree_entry(head, name, sha1, &mode) |
| || ce->ce_mode != create_ce_mode(mode) |
| || hashcmp(ce->sha1, sha1)) |
| staged_changes = 1; |
| |
| /* |
| * If the index does not match the file in the work |
| * tree and if it does not match the HEAD commit |
| * either, (1) "git rm" without --cached definitely |
| * will lose information; (2) "git rm --cached" will |
| * lose information unless it is about removing an |
| * "intent to add" entry. |
| */ |
| if (local_changes && staged_changes) { |
| if (!index_only || !(ce->ce_flags & CE_INTENT_TO_ADD)) |
| string_list_append(&files_staged, name); |
| } |
| else if (!index_only) { |
| if (staged_changes) |
| string_list_append(&files_cached, name); |
| if (local_changes) { |
| if (S_ISGITLINK(ce->ce_mode) && |
| !submodule_uses_gitfile(name)) |
| string_list_append(&files_submodule, name); |
| else |
| string_list_append(&files_local, name); |
| } |
| } |
| } |
| print_error_files(&files_staged, |
| Q_("the following file has staged content different " |
| "from both the\nfile and the HEAD:", |
| "the following files have staged content different" |
| " from both the\nfile and the HEAD:", |
| files_staged.nr), |
| _("\n(use -f to force removal)"), |
| &errs); |
| string_list_clear(&files_staged, 0); |
| print_error_files(&files_cached, |
| Q_("the following file has changes " |
| "staged in the index:", |
| "the following files have changes " |
| "staged in the index:", files_cached.nr), |
| _("\n(use --cached to keep the file," |
| " or -f to force removal)"), |
| &errs); |
| string_list_clear(&files_cached, 0); |
| |
| error_removing_concrete_submodules(&files_submodule, &errs); |
| |
| print_error_files(&files_local, |
| Q_("the following file has local modifications:", |
| "the following files have local modifications:", |
| files_local.nr), |
| _("\n(use --cached to keep the file," |
| " or -f to force removal)"), |
| &errs); |
| string_list_clear(&files_local, 0); |
| |
| return errs; |
| } |
| |
| static struct lock_file lock_file; |
| |
| static int show_only = 0, force = 0, index_only = 0, recursive = 0, quiet = 0; |
| static int ignore_unmatch = 0; |
| |
| static struct option builtin_rm_options[] = { |
| OPT__DRY_RUN(&show_only, N_("dry run")), |
| OPT__QUIET(&quiet, N_("do not list removed files")), |
| OPT_BOOL( 0 , "cached", &index_only, N_("only remove from the index")), |
| OPT__FORCE(&force, N_("override the up-to-date check")), |
| OPT_BOOL('r', NULL, &recursive, N_("allow recursive removal")), |
| OPT_BOOL( 0 , "ignore-unmatch", &ignore_unmatch, |
| N_("exit with a zero status even if nothing matched")), |
| OPT_END(), |
| }; |
| |
| int cmd_rm(int argc, const char **argv, const char *prefix) |
| { |
| int i, newfd; |
| struct pathspec pathspec; |
| char *seen; |
| |
| gitmodules_config(); |
| git_config(git_default_config, NULL); |
| |
| argc = parse_options(argc, argv, prefix, builtin_rm_options, |
| builtin_rm_usage, 0); |
| if (!argc) |
| usage_with_options(builtin_rm_usage, builtin_rm_options); |
| |
| if (!index_only) |
| setup_work_tree(); |
| |
| newfd = hold_locked_index(&lock_file, 1); |
| |
| if (read_cache() < 0) |
| die(_("index file corrupt")); |
| |
| parse_pathspec(&pathspec, 0, |
| PATHSPEC_PREFER_CWD | |
| PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP, |
| prefix, argv); |
| refresh_index(&the_index, REFRESH_QUIET, &pathspec, NULL, NULL); |
| |
| seen = xcalloc(pathspec.nr, 1); |
| |
| for (i = 0; i < active_nr; i++) { |
| const struct cache_entry *ce = active_cache[i]; |
| if (!ce_path_match(ce, &pathspec, seen)) |
| continue; |
| ALLOC_GROW(list.entry, list.nr + 1, list.alloc); |
| list.entry[list.nr].name = xstrdup(ce->name); |
| list.entry[list.nr].is_submodule = S_ISGITLINK(ce->ce_mode); |
| if (list.entry[list.nr++].is_submodule && |
| !is_staging_gitmodules_ok()) |
| die (_("Please, stage your changes to .gitmodules or stash them to proceed")); |
| } |
| |
| if (pathspec.nr) { |
| const char *original; |
| int seen_any = 0; |
| for (i = 0; i < pathspec.nr; i++) { |
| original = pathspec.items[i].original; |
| if (!seen[i]) { |
| if (!ignore_unmatch) { |
| die(_("pathspec '%s' did not match any files"), |
| original); |
| } |
| } |
| else { |
| seen_any = 1; |
| } |
| if (!recursive && seen[i] == MATCHED_RECURSIVELY) |
| die(_("not removing '%s' recursively without -r"), |
| *original ? original : "."); |
| } |
| |
| if (!seen_any) |
| exit(0); |
| } |
| |
| /* |
| * If not forced, the file, the index and the HEAD (if exists) |
| * must match; but the file can already been removed, since |
| * this sequence is a natural "novice" way: |
| * |
| * rm F; git rm F |
| * |
| * Further, if HEAD commit exists, "diff-index --cached" must |
| * report no changes unless forced. |
| */ |
| if (!force) { |
| unsigned char sha1[20]; |
| if (get_sha1("HEAD", sha1)) |
| hashclr(sha1); |
| if (check_local_mod(sha1, index_only)) |
| exit(1); |
| } else if (!index_only) { |
| if (check_submodules_use_gitfiles()) |
| exit(1); |
| } |
| |
| /* |
| * First remove the names from the index: we won't commit |
| * the index unless all of them succeed. |
| */ |
| for (i = 0; i < list.nr; i++) { |
| const char *path = list.entry[i].name; |
| if (!quiet) |
| printf("rm '%s'\n", path); |
| |
| if (remove_file_from_cache(path)) |
| die(_("git rm: unable to remove %s"), path); |
| } |
| |
| if (show_only) |
| return 0; |
| |
| /* |
| * Then, unless we used "--cached", remove the filenames from |
| * the workspace. If we fail to remove the first one, we |
| * abort the "git rm" (but once we've successfully removed |
| * any file at all, we'll go ahead and commit to it all: |
| * by then we've already committed ourselves and can't fail |
| * in the middle) |
| */ |
| if (!index_only) { |
| int removed = 0, gitmodules_modified = 0; |
| for (i = 0; i < list.nr; i++) { |
| const char *path = list.entry[i].name; |
| if (list.entry[i].is_submodule) { |
| if (is_empty_dir(path)) { |
| if (!rmdir(path)) { |
| removed = 1; |
| if (!remove_path_from_gitmodules(path)) |
| gitmodules_modified = 1; |
| continue; |
| } |
| } else { |
| struct strbuf buf = STRBUF_INIT; |
| strbuf_addstr(&buf, path); |
| if (!remove_dir_recursively(&buf, 0)) { |
| removed = 1; |
| if (!remove_path_from_gitmodules(path)) |
| gitmodules_modified = 1; |
| strbuf_release(&buf); |
| continue; |
| } else if (!file_exists(path)) |
| /* Submodule was removed by user */ |
| if (!remove_path_from_gitmodules(path)) |
| gitmodules_modified = 1; |
| strbuf_release(&buf); |
| /* Fallthrough and let remove_path() fail. */ |
| } |
| } |
| if (!remove_path(path)) { |
| removed = 1; |
| continue; |
| } |
| if (!removed) |
| die_errno("git rm: '%s'", path); |
| } |
| if (gitmodules_modified) |
| stage_updated_gitmodules(); |
| } |
| |
| if (active_cache_changed) { |
| if (write_cache(newfd, active_cache, active_nr) || |
| commit_locked_index(&lock_file)) |
| die(_("Unable to write new index file")); |
| } |
| |
| return 0; |
| } |