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-rw-r--r--builtin-ls-files.c550
1 files changed, 550 insertions, 0 deletions
diff --git a/builtin-ls-files.c b/builtin-ls-files.c
new file mode 100644
index 0000000000..c5c0407b0b
--- /dev/null
+++ b/builtin-ls-files.c
@@ -0,0 +1,550 @@
+/*
+ * 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"
+
+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_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 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 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];
+ if (show_unmerged && !ce_stage(ce))
+ continue;
+ if (ce->ce_flags & CE_UPDATE)
+ continue;
+ show_ce_entry(ce_stage(ce) ? tag_unmerged : 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;
+ if (ce->ce_flags & CE_UPDATE)
+ 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"),
+ { 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);
+
+ 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 ";
+ }
+ 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 */
+ read_cache();
+ 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_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 (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;
+}
generated by cgit v1.2.3 (git 2.46.0) at 2025-10-31 01:44:32 +0000