diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-02-22 19:42:18 +0300 |
---|---|---|
committer | Junio C Hamano <gitster@pobox.com> | 2010-02-23 01:29:41 +0300 |
commit | 81b50f3ce40bfdd66e5d967bf82be001039a9a98 (patch) | |
tree | 7e86bb81e83c9fad73dcbdaa0ef33038137b4274 /builtin/ls-files.c | |
parent | 241b9254e1c8ff071d8054f8b6fbe1883b389d69 (diff) |
Move 'builtin-*' into a 'builtin/' subdirectory
This shrinks the top-level directory a bit, and makes it much more
pleasant to use auto-completion on the thing. Instead of
[torvalds@nehalem git]$ em buil<tab>
Display all 180 possibilities? (y or n)
[torvalds@nehalem git]$ em builtin-sh
builtin-shortlog.c builtin-show-branch.c builtin-show-ref.c
builtin-shortlog.o builtin-show-branch.o builtin-show-ref.o
[torvalds@nehalem git]$ em builtin-shor<tab>
builtin-shortlog.c builtin-shortlog.o
[torvalds@nehalem git]$ em builtin-shortlog.c
you get
[torvalds@nehalem git]$ em buil<tab> [type]
builtin/ builtin.h
[torvalds@nehalem git]$ em builtin [auto-completes to]
[torvalds@nehalem git]$ em builtin/sh<tab> [type]
shortlog.c shortlog.o show-branch.c show-branch.o show-ref.c show-ref.o
[torvalds@nehalem git]$ em builtin/sho [auto-completes to]
[torvalds@nehalem git]$ em builtin/shor<tab> [type]
shortlog.c shortlog.o
[torvalds@nehalem git]$ em builtin/shortlog.c
which doesn't seem all that different, but not having that annoying
break in "Display all 180 possibilities?" is quite a relief.
NOTE! If you do this in a clean tree (no object files etc), or using an
editor that has auto-completion rules that ignores '*.o' files, you
won't see that annoying 'Display all 180 possibilities?' message - it
will just show the choices instead. I think bash has some cut-off
around 100 choices or something.
So the reason I see this is that I'm using an odd editory, and thus
don't have the rules to cut down on auto-completion. But you can
simulate that by using 'ls' instead, or something similar.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin/ls-files.c')
-rw-r--r-- | builtin/ls-files.c | 606 |
1 files changed, 606 insertions, 0 deletions
diff --git a/builtin/ls-files.c b/builtin/ls-files.c new file mode 100644 index 0000000000..b065061392 --- /dev/null +++ b/builtin/ls-files.c @@ -0,0 +1,606 @@ +/* + * 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 "quote.h" +#include "dir.h" +#include "builtin.h" +#include "tree.h" +#include "parse-options.h" +#include "resolve-undo.h" +#include "string-list.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 line_terminator = '\n'; + +static int prefix_len; +static int prefix_offset; +static const char **pathspec; +static int error_unmatch; +static char *ps_matched; +static const char *with_tree; +static int exc_given; + +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 show_dir_entry(const char *tag, struct dir_entry *ent) +{ + int len = prefix_len; + int offset = prefix_offset; + + if (len >= ent->len) + die("git ls-files: internal error - directory entry not superset of prefix"); + + if (!match_pathspec(pathspec, ent->name, ent->len, len, ps_matched)) + return; + + fputs(tag, stdout); + write_name_quoted(ent->name + offset, stdout, line_terminator); +} + +static void show_other_files(struct dir_struct *dir) +{ + int i; + + for (i = 0; i < dir->nr; i++) { + struct dir_entry *ent = dir->entries[i]; + if (!cache_name_is_other(ent->name, ent->len)) + continue; + show_dir_entry(tag_other, ent); + } +} + +static void show_killed_files(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 = cache_name_pos(ent->name, ent->len); + if (0 <= pos) + die("bug in show-killed-files"); + pos = -pos - 1; + while (pos < active_nr && + ce_stage(active_cache[pos])) + pos++; /* skip unmerged */ + if (active_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(active_cache[pos]); + if ((ent->len < len) && + !strncmp(active_cache[pos]->name, + ent->name, ent->len) && + active_cache[pos]->name[ent->len] == '/') + killed = 1; + break; + } + if (0 <= cache_name_pos(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(tag_killed, dir->entries[i]); + } +} + +static void show_ce_entry(const char *tag, struct cache_entry *ce) +{ + int len = prefix_len; + int offset = prefix_offset; + + if (len >= ce_namelen(ce)) + die("git ls-files: internal error - cache entry not superset of prefix"); + + if (!match_pathspec(pathspec, ce->name, ce_namelen(ce), len, ps_matched)) + return; + + if (tag && *tag && show_valid_bit && + (ce->ce_flags & CE_VALID)) { + static char alttag[4]; + 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; + } + + if (!show_stage) { + fputs(tag, stdout); + } else { + printf("%s%06o %s %d\t", + tag, + ce->ce_mode, + abbrev ? find_unique_abbrev(ce->sha1,abbrev) + : sha1_to_hex(ce->sha1), + ce_stage(ce)); + } + write_name_quoted(ce->name + offset, stdout, line_terminator); +} + +static int show_one_ru(struct string_list_item *item, void *cbdata) +{ + int offset = prefix_offset; + const char *path = item->string; + struct resolve_undo_info *ui = item->util; + int i, len; + + len = strlen(path); + if (len < prefix_len) + return 0; /* outside of the prefix */ + if (!match_pathspec(pathspec, path, len, prefix_len, ps_matched)) + return 0; /* uninterested */ + for (i = 0; i < 3; i++) { + if (!ui->mode[i]) + continue; + printf("%s%06o %s %d\t", tag_resolve_undo, ui->mode[i], + abbrev + ? find_unique_abbrev(ui->sha1[i], abbrev) + : sha1_to_hex(ui->sha1[i]), + i + 1); + write_name_quoted(path + offset, stdout, line_terminator); + } + return 0; +} + +static void show_ru_info(const char *prefix) +{ + if (!the_index.resolve_undo) + return; + for_each_string_list(show_one_ru, the_index.resolve_undo, NULL); +} + +static void show_files(struct dir_struct *dir, const char *prefix) +{ + int i; + + /* For cached/deleted files we don't need to even do the readdir */ + if (show_others || show_killed) { + fill_directory(dir, pathspec); + if (show_others) + show_other_files(dir); + if (show_killed) + show_killed_files(dir); + } + if (show_cached | show_stage) { + for (i = 0; i < active_nr; i++) { + struct cache_entry *ce = active_cache[i]; + int dtype = ce_to_dtype(ce); + if (dir->flags & DIR_SHOW_IGNORED && + !excluded(dir, ce->name, &dtype)) + continue; + if (show_unmerged && !ce_stage(ce)) + continue; + if (ce->ce_flags & CE_UPDATE) + continue; + show_ce_entry(ce_stage(ce) ? tag_unmerged : + (ce_skip_worktree(ce) ? tag_skip_worktree : tag_cached), ce); + } + } + if (show_deleted | show_modified) { + for (i = 0; i < active_nr; i++) { + struct cache_entry *ce = active_cache[i]; + struct stat st; + int err; + int dtype = ce_to_dtype(ce); + if (dir->flags & DIR_SHOW_IGNORED && + !excluded(dir, ce->name, &dtype)) + continue; + if (ce->ce_flags & CE_UPDATE) + continue; + if (ce_skip_worktree(ce)) + continue; + err = lstat(ce->name, &st); + if (show_deleted && err) + show_ce_entry(tag_removed, ce); + if (show_modified && ce_modified(ce, &st, 0)) + show_ce_entry(tag_modified, ce); + } + } +} + +/* + * Prune the index to only contain stuff starting with "prefix" + */ +static void prune_cache(const char *prefix) +{ + int pos = cache_name_pos(prefix, prefix_len); + unsigned int first, last; + + if (pos < 0) + pos = -pos-1; + memmove(active_cache, active_cache + pos, + (active_nr - pos) * sizeof(struct cache_entry *)); + active_nr -= pos; + first = 0; + last = active_nr; + while (last > first) { + int next = (last + first) >> 1; + struct cache_entry *ce = active_cache[next]; + if (!strncmp(ce->name, prefix, prefix_len)) { + first = next+1; + continue; + } + last = next; + } + active_nr = last; +} + +static const char *verify_pathspec(const char *prefix) +{ + const char **p, *n, *prev; + unsigned long max; + + prev = NULL; + max = PATH_MAX; + for (p = pathspec; (n = *p) != NULL; p++) { + int i, len = 0; + for (i = 0; i < max; i++) { + char c = n[i]; + if (prev && prev[i] != c) + break; + if (!c || c == '*' || c == '?') + break; + if (c == '/') + len = i+1; + } + prev = n; + if (len < max) { + max = len; + if (!max) + break; + } + } + + if (prefix_offset > max || memcmp(prev, prefix, prefix_offset)) + die("git ls-files: cannot generate relative filenames containing '..'"); + + prefix_len = max; + return max ? xmemdupz(prev, max) : NULL; +} + +static void strip_trailing_slash_from_submodules(void) +{ + const char **p; + + for (p = pathspec; *p != NULL; p++) { + int len = strlen(*p), pos; + + if (len < 1 || (*p)[len - 1] != '/') + continue; + pos = cache_name_pos(*p, len - 1); + if (pos >= 0 && S_ISGITLINK(active_cache[pos]->ce_mode)) + *p = xstrndup(*p, len - 1); + } +} + +/* + * 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_cache(const char *tree_name, const char *prefix) +{ + struct tree *tree; + unsigned char sha1[20]; + const char **match; + struct cache_entry *last_stage0 = NULL; + int i; + + if (get_sha1(tree_name, sha1)) + die("tree-ish %s not found.", tree_name); + tree = parse_tree_indirect(sha1); + if (!tree) + die("bad tree-ish %s", tree_name); + + /* Hoist the unmerged entries up to stage #3 to make room */ + for (i = 0; i < active_nr; i++) { + struct cache_entry *ce = active_cache[i]; + if (!ce_stage(ce)) + continue; + ce->ce_flags |= CE_STAGEMASK; + } + + if (prefix) { + static const char *(matchbuf[2]); + matchbuf[0] = prefix; + matchbuf[1] = NULL; + match = matchbuf; + } else + match = NULL; + if (read_tree(tree, 1, match)) + die("unable to read tree entries %s", tree_name); + + for (i = 0; i < active_nr; i++) { + struct cache_entry *ce = active_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; + } + } +} + +int report_path_error(const char *ps_matched, const char **pathspec, int prefix_offset) +{ + /* + * Make sure all pathspec matched; otherwise it is an error. + */ + int num, errors = 0; + for (num = 0; pathspec[num]; num++) { + int other, found_dup; + + if (ps_matched[num]) + continue; + /* + * The caller might have fed identical pathspec + * twice. Do not barf on such a mistake. + */ + for (found_dup = other = 0; + !found_dup && pathspec[other]; + other++) { + if (other == num || !ps_matched[other]) + continue; + if (!strcmp(pathspec[other], pathspec[num])) + /* + * Ok, we have a match already. + */ + found_dup = 1; + } + if (found_dup) + continue; + + error("pathspec '%s' did not match any file(s) known to git.", + pathspec[num] + prefix_offset); + errors++; + } + return errors; +} + +static const char * const ls_files_usage[] = { + "git ls-files [options] [<file>]*", + NULL +}; + +static int option_parse_z(const struct option *opt, + const char *arg, int unset) +{ + line_terminator = unset ? '\n' : '\0'; + + return 0; +} + +static int option_parse_exclude(const struct option *opt, + const char *arg, int unset) +{ + struct exclude_list *list = opt->value; + + exc_given = 1; + add_exclude(arg, "", 0, list); + + return 0; +} + +static int option_parse_exclude_from(const struct option *opt, + const char *arg, int unset) +{ + struct dir_struct *dir = opt->value; + + exc_given = 1; + add_excludes_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; + + exc_given = 1; + setup_standard_excludes(dir); + + return 0; +} + +int cmd_ls_files(int argc, const char **argv, const char *prefix) +{ + int require_work_tree = 0, show_tag = 0; + struct dir_struct dir; + struct option builtin_ls_files_options[] = { + { OPTION_CALLBACK, 'z', NULL, NULL, NULL, + "paths are separated with NUL character", + PARSE_OPT_NOARG, option_parse_z }, + OPT_BOOLEAN('t', NULL, &show_tag, + "identify the file status with tags"), + OPT_BOOLEAN('v', NULL, &show_valid_bit, + "use lowercase letters for 'assume unchanged' files"), + OPT_BOOLEAN('c', "cached", &show_cached, + "show cached files in the output (default)"), + OPT_BOOLEAN('d', "deleted", &show_deleted, + "show deleted files in the output"), + OPT_BOOLEAN('m', "modified", &show_modified, + "show modified files in the output"), + OPT_BOOLEAN('o', "others", &show_others, + "show other files in the output"), + OPT_BIT('i', "ignored", &dir.flags, + "show ignored files in the output", + DIR_SHOW_IGNORED), + OPT_BOOLEAN('s', "stage", &show_stage, + "show staged contents' object name in the output"), + OPT_BOOLEAN('k', "killed", &show_killed, + "show files on the filesystem that need to be removed"), + OPT_BIT(0, "directory", &dir.flags, + "show 'other' directories' name only", + DIR_SHOW_OTHER_DIRECTORIES), + OPT_NEGBIT(0, "empty-directory", &dir.flags, + "don't show empty directories", + DIR_HIDE_EMPTY_DIRECTORIES), + OPT_BOOLEAN('u', "unmerged", &show_unmerged, + "show unmerged files in the output"), + OPT_BOOLEAN(0, "resolve-undo", &show_resolve_undo, + "show resolve-undo information"), + { OPTION_CALLBACK, 'x', "exclude", &dir.exclude_list[EXC_CMDL], "pattern", + "skip files matching pattern", + 0, option_parse_exclude }, + { OPTION_CALLBACK, 'X', "exclude-from", &dir, "file", + "exclude patterns are read from <file>", + 0, option_parse_exclude_from }, + OPT_STRING(0, "exclude-per-directory", &dir.exclude_per_dir, "file", + "read additional per-directory exclude patterns in <file>"), + { OPTION_CALLBACK, 0, "exclude-standard", &dir, NULL, + "add the standard git exclusions", + PARSE_OPT_NOARG, option_parse_exclude_standard }, + { OPTION_SET_INT, 0, "full-name", &prefix_offset, NULL, + "make the output relative to the project top directory", + PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL }, + OPT_BOOLEAN(0, "error-unmatch", &error_unmatch, + "if any <file> is not in the index, treat this as an error"), + OPT_STRING(0, "with-tree", &with_tree, "tree-ish", + "pretend that paths removed since <tree-ish> are still present"), + OPT__ABBREV(&abbrev), + OPT_END() + }; + + memset(&dir, 0, sizeof(dir)); + if (prefix) + prefix_offset = strlen(prefix); + git_config(git_default_config, NULL); + + if (read_cache() < 0) + die("index file corrupt"); + + argc = parse_options(argc, argv, prefix, builtin_ls_files_options, + ls_files_usage, 0); + if (show_tag || show_valid_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(); + + pathspec = get_pathspec(prefix, argv); + + /* be nice with submodule paths ending in a slash */ + if (pathspec) + strip_trailing_slash_from_submodules(); + + /* Verify that the pathspec matches the prefix */ + if (pathspec) + prefix = verify_pathspec(prefix); + + /* Treat unmatching pathspec elements as errors */ + if (pathspec && error_unmatch) { + int num; + for (num = 0; pathspec[num]; num++) + ; + ps_matched = xcalloc(1, num); + } + + 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 (prefix) + prune_cache(prefix); + 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_cache(with_tree, prefix); + } + show_files(&dir, prefix); + if (show_resolve_undo) + show_ru_info(prefix); + + if (ps_matched) { + int bad; + bad = report_path_error(ps_matched, pathspec, prefix_offset); + if (bad) + fprintf(stderr, "Did you forget to 'git add'?\n"); + + return bad ? 1 : 0; + } + + return 0; +} |