diff options
Diffstat (limited to 'third_party/git/builtin/ls-files.c')
| -rw-r--r-- | third_party/git/builtin/ls-files.c | 692 |
1 files changed, 692 insertions, 0 deletions
diff --git a/third_party/git/builtin/ls-files.c b/third_party/git/builtin/ls-files.c new file mode 100644 index 000000000000..f069a028cea1 --- /dev/null +++ b/third_party/git/builtin/ls-files.c @@ -0,0 +1,692 @@ +/* + * This merges the file listing in the directory cache index + * with the actual working directory list, and shows different + * combinations of the two. + * + * Copyright (C) Linus Torvalds, 2005 + */ +#include "cache.h" +#include "repository.h" +#include "config.h" +#include "quote.h" +#include "dir.h" +#include "builtin.h" +#include "tree.h" +#include "parse-options.h" +#include "resolve-undo.h" +#include "string-list.h" +#include "pathspec.h" +#include "run-command.h" +#include "submodule.h" +#include "submodule-config.h" + +static int abbrev; +static int show_deleted; +static int show_cached; +static int show_others; +static int show_stage; +static int show_unmerged; +static int show_resolve_undo; +static int show_modified; +static int show_killed; +static int show_valid_bit; +static int show_fsmonitor_bit; +static int line_terminator = '\n'; +static int debug_mode; +static int show_eol; +static int recurse_submodules; + +static const char *prefix; +static int max_prefix_len; +static int prefix_len; +static struct pathspec pathspec; +static int error_unmatch; +static char *ps_matched; +static const char *with_tree; +static int exc_given; +static int exclude_args; + +static const char *tag_cached = ""; +static const char *tag_unmerged = ""; +static const char *tag_removed = ""; +static const char *tag_other = ""; +static const char *tag_killed = ""; +static const char *tag_modified = ""; +static const char *tag_skip_worktree = ""; +static const char *tag_resolve_undo = ""; + +static void write_eolinfo(const struct index_state *istate, + const struct cache_entry *ce, const char *path) +{ + if (show_eol) { + struct stat st; + const char *i_txt = ""; + const char *w_txt = ""; + const char *a_txt = get_convert_attr_ascii(istate, path); + if (ce && S_ISREG(ce->ce_mode)) + i_txt = get_cached_convert_stats_ascii(istate, + ce->name); + if (!lstat(path, &st) && S_ISREG(st.st_mode)) + w_txt = get_wt_convert_stats_ascii(path); + printf("i/%-5s w/%-5s attr/%-17s\t", i_txt, w_txt, a_txt); + } +} + +static void write_name(const char *name) +{ + /* + * With "--full-name", prefix_len=0; this caller needs to pass + * an empty string in that case (a NULL is good for ""). + */ + write_name_quoted_relative(name, prefix_len ? prefix : NULL, + stdout, line_terminator); +} + +static const char *get_tag(const struct cache_entry *ce, const char *tag) +{ + static char alttag[4]; + + if (tag && *tag && ((show_valid_bit && (ce->ce_flags & CE_VALID)) || + (show_fsmonitor_bit && (ce->ce_flags & CE_FSMONITOR_VALID)))) { + memcpy(alttag, tag, 3); + + if (isalpha(tag[0])) { + alttag[0] = tolower(tag[0]); + } else if (tag[0] == '?') { + alttag[0] = '!'; + } else { + alttag[0] = 'v'; + alttag[1] = tag[0]; + alttag[2] = ' '; + alttag[3] = 0; + } + + tag = alttag; + } + + return tag; +} + +static void print_debug(const struct cache_entry *ce) +{ + if (debug_mode) { + const struct stat_data *sd = &ce->ce_stat_data; + + printf(" ctime: %u:%u\n", sd->sd_ctime.sec, sd->sd_ctime.nsec); + printf(" mtime: %u:%u\n", sd->sd_mtime.sec, sd->sd_mtime.nsec); + printf(" dev: %u\tino: %u\n", sd->sd_dev, sd->sd_ino); + printf(" uid: %u\tgid: %u\n", sd->sd_uid, sd->sd_gid); + printf(" size: %u\tflags: %x\n", sd->sd_size, ce->ce_flags); + } +} + +static void show_dir_entry(const struct index_state *istate, + const char *tag, struct dir_entry *ent) +{ + int len = max_prefix_len; + + if (len > ent->len) + die("git ls-files: internal error - directory entry not superset of prefix"); + + if (!dir_path_match(istate, ent, &pathspec, len, ps_matched)) + return; + + fputs(tag, stdout); + write_eolinfo(istate, NULL, ent->name); + write_name(ent->name); +} + +static void show_other_files(const struct index_state *istate, + const struct dir_struct *dir) +{ + int i; + + for (i = 0; i < dir->nr; i++) { + struct dir_entry *ent = dir->entries[i]; + if (!index_name_is_other(istate, ent->name, ent->len)) + continue; + show_dir_entry(istate, tag_other, ent); + } +} + +static void show_killed_files(const struct index_state *istate, + const struct dir_struct *dir) +{ + int i; + for (i = 0; i < dir->nr; i++) { + struct dir_entry *ent = dir->entries[i]; + char *cp, *sp; + int pos, len, killed = 0; + + for (cp = ent->name; cp - ent->name < ent->len; cp = sp + 1) { + sp = strchr(cp, '/'); + if (!sp) { + /* If ent->name is prefix of an entry in the + * cache, it will be killed. + */ + pos = index_name_pos(istate, ent->name, ent->len); + if (0 <= pos) + BUG("killed-file %.*s not found", + ent->len, ent->name); + pos = -pos - 1; + while (pos < istate->cache_nr && + ce_stage(istate->cache[pos])) + pos++; /* skip unmerged */ + if (istate->cache_nr <= pos) + break; + /* pos points at a name immediately after + * ent->name in the cache. Does it expect + * ent->name to be a directory? + */ + len = ce_namelen(istate->cache[pos]); + if ((ent->len < len) && + !strncmp(istate->cache[pos]->name, + ent->name, ent->len) && + istate->cache[pos]->name[ent->len] == '/') + killed = 1; + break; + } + if (0 <= index_name_pos(istate, ent->name, sp - ent->name)) { + /* If any of the leading directories in + * ent->name is registered in the cache, + * ent->name will be killed. + */ + killed = 1; + break; + } + } + if (killed) + show_dir_entry(istate, tag_killed, dir->entries[i]); + } +} + +static void show_files(struct repository *repo, struct dir_struct *dir); + +static void show_submodule(struct repository *superproject, + struct dir_struct *dir, const char *path) +{ + struct repository subrepo; + const struct submodule *sub = submodule_from_path(superproject, + &null_oid, path); + + if (repo_submodule_init(&subrepo, superproject, sub)) + return; + + if (repo_read_index(&subrepo) < 0) + die("index file corrupt"); + + show_files(&subrepo, dir); + + repo_clear(&subrepo); +} + +static void show_ce(struct repository *repo, struct dir_struct *dir, + const struct cache_entry *ce, const char *fullname, + const char *tag) +{ + if (max_prefix_len > strlen(fullname)) + die("git ls-files: internal error - cache entry not superset of prefix"); + + if (recurse_submodules && S_ISGITLINK(ce->ce_mode) && + is_submodule_active(repo, ce->name)) { + show_submodule(repo, dir, ce->name); + } else if (match_pathspec(repo->index, &pathspec, fullname, strlen(fullname), + max_prefix_len, ps_matched, + S_ISDIR(ce->ce_mode) || + S_ISGITLINK(ce->ce_mode))) { + tag = get_tag(ce, tag); + + if (!show_stage) { + fputs(tag, stdout); + } else { + printf("%s%06o %s %d\t", + tag, + ce->ce_mode, + find_unique_abbrev(&ce->oid, abbrev), + ce_stage(ce)); + } + write_eolinfo(repo->index, ce, fullname); + write_name(fullname); + print_debug(ce); + } +} + +static void show_ru_info(const struct index_state *istate) +{ + struct string_list_item *item; + + if (!istate->resolve_undo) + return; + + for_each_string_list_item(item, istate->resolve_undo) { + const char *path = item->string; + struct resolve_undo_info *ui = item->util; + int i, len; + + len = strlen(path); + if (len < max_prefix_len) + continue; /* outside of the prefix */ + if (!match_pathspec(istate, &pathspec, path, len, + max_prefix_len, ps_matched, 0)) + continue; /* uninterested */ + for (i = 0; i < 3; i++) { + if (!ui->mode[i]) + continue; + printf("%s%06o %s %d\t", tag_resolve_undo, ui->mode[i], + find_unique_abbrev(&ui->oid[i], abbrev), + i + 1); + write_name(path); + } + } +} + +static int ce_excluded(struct dir_struct *dir, struct index_state *istate, + const char *fullname, const struct cache_entry *ce) +{ + int dtype = ce_to_dtype(ce); + return is_excluded(dir, istate, fullname, &dtype); +} + +static void construct_fullname(struct strbuf *out, const struct repository *repo, + const struct cache_entry *ce) +{ + strbuf_reset(out); + if (repo->submodule_prefix) + strbuf_addstr(out, repo->submodule_prefix); + strbuf_addstr(out, ce->name); +} + +static void show_files(struct repository *repo, struct dir_struct *dir) +{ + int i; + struct strbuf fullname = STRBUF_INIT; + + /* For cached/deleted files we don't need to even do the readdir */ + if (show_others || show_killed) { + if (!show_others) + dir->flags |= DIR_COLLECT_KILLED_ONLY; + fill_directory(dir, repo->index, &pathspec); + if (show_others) + show_other_files(repo->index, dir); + if (show_killed) + show_killed_files(repo->index, dir); + } + if (show_cached || show_stage) { + for (i = 0; i < repo->index->cache_nr; i++) { + const struct cache_entry *ce = repo->index->cache[i]; + + construct_fullname(&fullname, repo, ce); + + if ((dir->flags & DIR_SHOW_IGNORED) && + !ce_excluded(dir, repo->index, fullname.buf, ce)) + continue; + if (show_unmerged && !ce_stage(ce)) + continue; + if (ce->ce_flags & CE_UPDATE) + continue; + show_ce(repo, dir, ce, fullname.buf, + ce_stage(ce) ? tag_unmerged : + (ce_skip_worktree(ce) ? tag_skip_worktree : + tag_cached)); + } + } + if (show_deleted || show_modified) { + for (i = 0; i < repo->index->cache_nr; i++) { + const struct cache_entry *ce = repo->index->cache[i]; + struct stat st; + int err; + + construct_fullname(&fullname, repo, ce); + + if ((dir->flags & DIR_SHOW_IGNORED) && + !ce_excluded(dir, repo->index, fullname.buf, ce)) + continue; + if (ce->ce_flags & CE_UPDATE) + continue; + if (ce_skip_worktree(ce)) + continue; + err = lstat(fullname.buf, &st); + if (show_deleted && err) + show_ce(repo, dir, ce, fullname.buf, tag_removed); + if (show_modified && ie_modified(repo->index, ce, &st, 0)) + show_ce(repo, dir, ce, fullname.buf, tag_modified); + } + } + + strbuf_release(&fullname); +} + +/* + * Prune the index to only contain stuff starting with "prefix" + */ +static void prune_index(struct index_state *istate, + const char *prefix, size_t prefixlen) +{ + int pos; + unsigned int first, last; + + if (!prefix || !istate->cache_nr) + return; + pos = index_name_pos(istate, prefix, prefixlen); + if (pos < 0) + pos = -pos-1; + first = pos; + last = istate->cache_nr; + while (last > first) { + int next = first + ((last - first) >> 1); + const struct cache_entry *ce = istate->cache[next]; + if (!strncmp(ce->name, prefix, prefixlen)) { + first = next+1; + continue; + } + last = next; + } + MOVE_ARRAY(istate->cache, istate->cache + pos, last - pos); + istate->cache_nr = last - pos; +} + +static int get_common_prefix_len(const char *common_prefix) +{ + int common_prefix_len; + + if (!common_prefix) + return 0; + + common_prefix_len = strlen(common_prefix); + + /* + * If the prefix has a trailing slash, strip it so that submodules wont + * be pruned from the index. + */ + if (common_prefix[common_prefix_len - 1] == '/') + common_prefix_len--; + + return common_prefix_len; +} + +/* + * Read the tree specified with --with-tree option + * (typically, HEAD) into stage #1 and then + * squash them down to stage #0. This is used for + * --error-unmatch to list and check the path patterns + * that were given from the command line. We are not + * going to write this index out. + */ +void overlay_tree_on_index(struct index_state *istate, + const char *tree_name, const char *prefix) +{ + struct tree *tree; + struct object_id oid; + struct pathspec pathspec; + struct cache_entry *last_stage0 = NULL; + int i; + + if (get_oid(tree_name, &oid)) + die("tree-ish %s not found.", tree_name); + tree = parse_tree_indirect(&oid); + if (!tree) + die("bad tree-ish %s", tree_name); + + /* Hoist the unmerged entries up to stage #3 to make room */ + for (i = 0; i < istate->cache_nr; i++) { + struct cache_entry *ce = istate->cache[i]; + if (!ce_stage(ce)) + continue; + ce->ce_flags |= CE_STAGEMASK; + } + + if (prefix) { + static const char *(matchbuf[1]); + matchbuf[0] = NULL; + parse_pathspec(&pathspec, PATHSPEC_ALL_MAGIC, + PATHSPEC_PREFER_CWD, prefix, matchbuf); + } else + memset(&pathspec, 0, sizeof(pathspec)); + if (read_tree(the_repository, tree, 1, &pathspec, istate)) + die("unable to read tree entries %s", tree_name); + + for (i = 0; i < istate->cache_nr; i++) { + struct cache_entry *ce = istate->cache[i]; + switch (ce_stage(ce)) { + case 0: + last_stage0 = ce; + /* fallthru */ + default: + continue; + case 1: + /* + * If there is stage #0 entry for this, we do not + * need to show it. We use CE_UPDATE bit to mark + * such an entry. + */ + if (last_stage0 && + !strcmp(last_stage0->name, ce->name)) + ce->ce_flags |= CE_UPDATE; + } + } +} + +static const char * const ls_files_usage[] = { + N_("git ls-files [<options>] [<file>...]"), + NULL +}; + +static int option_parse_exclude(const struct option *opt, + const char *arg, int unset) +{ + struct string_list *exclude_list = opt->value; + + BUG_ON_OPT_NEG(unset); + + exc_given = 1; + string_list_append(exclude_list, arg); + + return 0; +} + +static int option_parse_exclude_from(const struct option *opt, + const char *arg, int unset) +{ + struct dir_struct *dir = opt->value; + + BUG_ON_OPT_NEG(unset); + + exc_given = 1; + add_patterns_from_file(dir, arg); + + return 0; +} + +static int option_parse_exclude_standard(const struct option *opt, + const char *arg, int unset) +{ + struct dir_struct *dir = opt->value; + + BUG_ON_OPT_NEG(unset); + BUG_ON_OPT_ARG(arg); + + exc_given = 1; + setup_standard_excludes(dir); + + return 0; +} + +int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix) +{ + int require_work_tree = 0, show_tag = 0, i; + const char *max_prefix; + struct dir_struct dir; + struct pattern_list *pl; + struct string_list exclude_list = STRING_LIST_INIT_NODUP; + struct option builtin_ls_files_options[] = { + /* Think twice before adding "--nul" synonym to this */ + OPT_SET_INT('z', NULL, &line_terminator, + N_("paths are separated with NUL character"), '\0'), + OPT_BOOL('t', NULL, &show_tag, + N_("identify the file status with tags")), + OPT_BOOL('v', NULL, &show_valid_bit, + N_("use lowercase letters for 'assume unchanged' files")), + OPT_BOOL('f', NULL, &show_fsmonitor_bit, + N_("use lowercase letters for 'fsmonitor clean' files")), + OPT_BOOL('c', "cached", &show_cached, + N_("show cached files in the output (default)")), + OPT_BOOL('d', "deleted", &show_deleted, + N_("show deleted files in the output")), + OPT_BOOL('m', "modified", &show_modified, + N_("show modified files in the output")), + OPT_BOOL('o', "others", &show_others, + N_("show other files in the output")), + OPT_BIT('i', "ignored", &dir.flags, + N_("show ignored files in the output"), + DIR_SHOW_IGNORED), + OPT_BOOL('s', "stage", &show_stage, + N_("show staged contents' object name in the output")), + OPT_BOOL('k', "killed", &show_killed, + N_("show files on the filesystem that need to be removed")), + OPT_BIT(0, "directory", &dir.flags, + N_("show 'other' directories' names only"), + DIR_SHOW_OTHER_DIRECTORIES), + OPT_BOOL(0, "eol", &show_eol, N_("show line endings of files")), + OPT_NEGBIT(0, "empty-directory", &dir.flags, + N_("don't show empty directories"), + DIR_HIDE_EMPTY_DIRECTORIES), + OPT_BOOL('u', "unmerged", &show_unmerged, + N_("show unmerged files in the output")), + OPT_BOOL(0, "resolve-undo", &show_resolve_undo, + N_("show resolve-undo information")), + { OPTION_CALLBACK, 'x', "exclude", &exclude_list, N_("pattern"), + N_("skip files matching pattern"), + PARSE_OPT_NONEG, option_parse_exclude }, + { OPTION_CALLBACK, 'X', "exclude-from", &dir, N_("file"), + N_("exclude patterns are read from <file>"), + PARSE_OPT_NONEG, option_parse_exclude_from }, + OPT_STRING(0, "exclude-per-directory", &dir.exclude_per_dir, N_("file"), + N_("read additional per-directory exclude patterns in <file>")), + { OPTION_CALLBACK, 0, "exclude-standard", &dir, NULL, + N_("add the standard git exclusions"), + PARSE_OPT_NOARG | PARSE_OPT_NONEG, + option_parse_exclude_standard }, + OPT_SET_INT_F(0, "full-name", &prefix_len, + N_("make the output relative to the project top directory"), + 0, PARSE_OPT_NONEG), + OPT_BOOL(0, "recurse-submodules", &recurse_submodules, + N_("recurse through submodules")), + OPT_BOOL(0, "error-unmatch", &error_unmatch, + N_("if any <file> is not in the index, treat this as an error")), + OPT_STRING(0, "with-tree", &with_tree, N_("tree-ish"), + N_("pretend that paths removed since <tree-ish> are still present")), + OPT__ABBREV(&abbrev), + OPT_BOOL(0, "debug", &debug_mode, N_("show debugging data")), + OPT_END() + }; + + if (argc == 2 && !strcmp(argv[1], "-h")) + usage_with_options(ls_files_usage, builtin_ls_files_options); + + memset(&dir, 0, sizeof(dir)); + prefix = cmd_prefix; + if (prefix) + prefix_len = strlen(prefix); + git_config(git_default_config, NULL); + + if (repo_read_index(the_repository) < 0) + die("index file corrupt"); + + argc = parse_options(argc, argv, prefix, builtin_ls_files_options, + ls_files_usage, 0); + pl = add_pattern_list(&dir, EXC_CMDL, "--exclude option"); + for (i = 0; i < exclude_list.nr; i++) { + add_pattern(exclude_list.items[i].string, "", 0, pl, --exclude_args); + } + if (show_tag || show_valid_bit || show_fsmonitor_bit) { + tag_cached = "H "; + tag_unmerged = "M "; + tag_removed = "R "; + tag_modified = "C "; + tag_other = "? "; + tag_killed = "K "; + tag_skip_worktree = "S "; + tag_resolve_undo = "U "; + } + if (show_modified || show_others || show_deleted || (dir.flags & DIR_SHOW_IGNORED) || show_killed) + require_work_tree = 1; + if (show_unmerged) + /* + * There's no point in showing unmerged unless + * you also show the stage information. + */ + show_stage = 1; + if (dir.exclude_per_dir) + exc_given = 1; + + if (require_work_tree && !is_inside_work_tree()) + setup_work_tree(); + + if (recurse_submodules && + (show_stage || show_deleted || show_others || show_unmerged || + show_killed || show_modified || show_resolve_undo || with_tree)) + die("ls-files --recurse-submodules unsupported mode"); + + if (recurse_submodules && error_unmatch) + die("ls-files --recurse-submodules does not support " + "--error-unmatch"); + + parse_pathspec(&pathspec, 0, + PATHSPEC_PREFER_CWD, + prefix, argv); + + /* + * Find common prefix for all pathspec's + * This is used as a performance optimization which unfortunately cannot + * be done when recursing into submodules because when a pathspec is + * given which spans repository boundaries you can't simply remove the + * submodule entry because the pathspec may match something inside the + * submodule. + */ + if (recurse_submodules) + max_prefix = NULL; + else + max_prefix = common_prefix(&pathspec); + max_prefix_len = get_common_prefix_len(max_prefix); + + prune_index(the_repository->index, max_prefix, max_prefix_len); + + /* Treat unmatching pathspec elements as errors */ + if (pathspec.nr && error_unmatch) + ps_matched = xcalloc(pathspec.nr, 1); + + if ((dir.flags & DIR_SHOW_IGNORED) && !exc_given) + die("ls-files --ignored needs some exclude pattern"); + + /* With no flags, we default to showing the cached files */ + if (!(show_stage || show_deleted || show_others || show_unmerged || + show_killed || show_modified || show_resolve_undo)) + show_cached = 1; + + if (with_tree) { + /* + * Basic sanity check; show-stages and show-unmerged + * would not make any sense with this option. + */ + if (show_stage || show_unmerged) + die("ls-files --with-tree is incompatible with -s or -u"); + overlay_tree_on_index(the_repository->index, with_tree, max_prefix); + } + + show_files(the_repository, &dir); + + if (show_resolve_undo) + show_ru_info(the_repository->index); + + if (ps_matched) { + int bad; + bad = report_path_error(ps_matched, &pathspec); + if (bad) + fprintf(stderr, "Did you forget to 'git add'?\n"); + + return bad ? 1 : 0; + } + + UNLEAK(dir); + return 0; +} |