From: Junio C Hamano <junkio@cox.net>
Date: Wed, 24 May 2006 18:24:50 +0000 (-0700)
Subject: Merge branch 'jc/builtin-n-tar-tree'
X-Git-Tag: v1.4.0-rc1~77
X-Git-Url: https://git.octo.it/?p=git.git;a=commitdiff_plain;h=f2054be4c4816d8c363dc867f462bc0af9031c02

Merge branch 'jc/builtin-n-tar-tree'

This pulls in "make many commands built-in" branches.

* jc/builtin-n-tar-tree:
  built-in tar-tree and remote tar-tree
  Builtin git-diff-files, git-diff-index, git-diff-stages, and git-diff-tree.
  Builtin git-show-branch.
  Builtin git-apply.
  Builtin git-commit-tree.
  Builtin git-read-tree.
  Builtin git-tar-tree.
  Builtin git-ls-tree.
  Builtin git-ls-files.
---

f2054be4c4816d8c363dc867f462bc0af9031c02
diff --cc Makefile
index 46c83cb4,14873fa3..3bfe1c33
--- a/Makefile
+++ b/Makefile
@@@ -170,9 -168,12 +168,13 @@@ PROGRAMS = 
  
  BUILT_INS = git-log$X git-whatchanged$X git-show$X \
  	git-count-objects$X git-diff$X git-push$X \
 -	git-grep$X git-rev-list$X git-check-ref-format$X \
 -	git-init-db$X git-ls-files$X git-ls-tree$X \
 +	git-grep$X git-add$X git-rm$X git-rev-list$X \
 +	git-check-ref-format$X \
- 	git-init-db$X
++	git-init-db$X git-tar-tree$X git-upload-tar$X \
++	git-ls-files$X git-ls-tree$X \
+ 	git-read-tree$X git-commit-tree$X \
+ 	git-apply$X git-show-branch$X git-diff-files$X \
 -	git-diff-index$X git-diff-stages$X git-diff-tree$X \
 -	git-tar-tree$X git-upload-tar$X
++	git-diff-index$X git-diff-stages$X git-diff-tree$X
  
  # what 'all' will build and 'install' will install, in gitexecdir
  ALL_PROGRAMS = $(PROGRAMS) $(SIMPLE_PROGRAMS) $(SCRIPTS)
@@@ -220,8 -221,12 +222,13 @@@ LIB_OBJS = 
  
  BUILTIN_OBJS = \
  	builtin-log.o builtin-help.o builtin-count.o builtin-diff.o builtin-push.o \
 -	builtin-grep.o builtin-rev-list.o builtin-check-ref-format.o \
 -	builtin-init-db.o builtin-ls-files.o builtin-ls-tree.o \
 +	builtin-grep.o builtin-add.o builtin-rev-list.o builtin-check-ref-format.o \
- 	builtin-rm.o builtin-init-db.o
++	builtin-rm.o builtin-init-db.o \
++	builtin-tar-tree.o builtin-upload-tar.o \
++	builtin-ls-files.o builtin-ls-tree.o \
+ 	builtin-read-tree.o builtin-commit-tree.o \
+ 	builtin-apply.o builtin-show-branch.o builtin-diff-files.o \
 -	builtin-diff-index.o builtin-diff-stages.o builtin-diff-tree.o \
 -	builtin-tar-tree.o builtin-upload-tar.o
++	builtin-diff-index.o builtin-diff-stages.o builtin-diff-tree.o
  
  GITLIBS = $(LIB_FILE) $(XDIFF_LIB)
  LIBS = $(GITLIBS) -lz
diff --cc builtin-ls-files.c
index 00000000,3a0c5f21..8dae9f70
mode 000000,100644..100644
--- a/builtin-ls-files.c
+++ b/builtin-ls-files.c
@@@ -1,0 -1,824 +1,499 @@@
+ /*
+  * 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 <dirent.h>
+ #include <fnmatch.h>
+ 
+ #include "cache.h"
+ #include "quote.h"
++#include "dir.h"
+ #include "builtin.h"
+ 
+ static int abbrev = 0;
+ static int show_deleted = 0;
+ static int show_cached = 0;
+ static int show_others = 0;
 -static int show_ignored = 0;
+ static int show_stage = 0;
+ static int show_unmerged = 0;
+ static int show_modified = 0;
+ static int show_killed = 0;
 -static int show_other_directories = 0;
 -static int hide_empty_directories = 0;
+ static int show_valid_bit = 0;
+ static int line_terminator = '\n';
+ 
+ static int prefix_len = 0, prefix_offset = 0;
+ static const char *prefix = NULL;
+ static const char **pathspec = NULL;
+ static int error_unmatch = 0;
+ static char *ps_matched = NULL;
+ 
+ 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 *exclude_per_dir = NULL;
 -
 -/* We maintain three exclude pattern lists:
 - * EXC_CMDL lists patterns explicitly given on the command line.
 - * EXC_DIRS lists patterns obtained from per-directory ignore files.
 - * EXC_FILE lists patterns from fallback ignore files.
 - */
 -#define EXC_CMDL 0
 -#define EXC_DIRS 1
 -#define EXC_FILE 2
 -static struct exclude_list {
 -	int nr;
 -	int alloc;
 -	struct exclude {
 -		const char *pattern;
 -		const char *base;
 -		int baselen;
 -	} **excludes;
 -} exclude_list[3];
 -
 -static void add_exclude(const char *string, const char *base,
 -			int baselen, struct exclude_list *which)
 -{
 -	struct exclude *x = xmalloc(sizeof (*x));
 -
 -	x->pattern = string;
 -	x->base = base;
 -	x->baselen = baselen;
 -	if (which->nr == which->alloc) {
 -		which->alloc = alloc_nr(which->alloc);
 -		which->excludes = realloc(which->excludes,
 -					  which->alloc * sizeof(x));
 -	}
 -	which->excludes[which->nr++] = x;
 -}
 -
 -static int add_excludes_from_file_1(const char *fname,
 -				    const char *base,
 -				    int baselen,
 -				    struct exclude_list *which)
 -{
 -	int fd, i;
 -	long size;
 -	char *buf, *entry;
 -
 -	fd = open(fname, O_RDONLY);
 -	if (fd < 0)
 -		goto err;
 -	size = lseek(fd, 0, SEEK_END);
 -	if (size < 0)
 -		goto err;
 -	lseek(fd, 0, SEEK_SET);
 -	if (size == 0) {
 -		close(fd);
 -		return 0;
 -	}
 -	buf = xmalloc(size+1);
 -	if (read(fd, buf, size) != size)
 -		goto err;
 -	close(fd);
 -
 -	buf[size++] = '\n';
 -	entry = buf;
 -	for (i = 0; i < size; i++) {
 -		if (buf[i] == '\n') {
 -			if (entry != buf + i && entry[0] != '#') {
 -				buf[i - (i && buf[i-1] == '\r')] = 0;
 -				add_exclude(entry, base, baselen, which);
 -			}
 -			entry = buf + i + 1;
 -		}
 -	}
 -	return 0;
 -
 - err:
 -	if (0 <= fd)
 -		close(fd);
 -	return -1;
 -}
 -
 -static void add_excludes_from_file(const char *fname)
 -{
 -	if (add_excludes_from_file_1(fname, "", 0,
 -				     &exclude_list[EXC_FILE]) < 0)
 -		die("cannot use %s as an exclude file", fname);
 -}
 -
 -static int push_exclude_per_directory(const char *base, int baselen)
 -{
 -	char exclude_file[PATH_MAX];
 -	struct exclude_list *el = &exclude_list[EXC_DIRS];
 -	int current_nr = el->nr;
 -
 -	if (exclude_per_dir) {
 -		memcpy(exclude_file, base, baselen);
 -		strcpy(exclude_file + baselen, exclude_per_dir);
 -		add_excludes_from_file_1(exclude_file, base, baselen, el);
 -	}
 -	return current_nr;
 -}
 -
 -static void pop_exclude_per_directory(int stk)
 -{
 -	struct exclude_list *el = &exclude_list[EXC_DIRS];
 -
 -	while (stk < el->nr)
 -		free(el->excludes[--el->nr]);
 -}
 -
 -/* Scan the list and let the last match determines the fate.
 - * Return 1 for exclude, 0 for include and -1 for undecided.
 - */
 -static int excluded_1(const char *pathname,
 -		      int pathlen,
 -		      struct exclude_list *el)
 -{
 -	int i;
 -
 -	if (el->nr) {
 -		for (i = el->nr - 1; 0 <= i; i--) {
 -			struct exclude *x = el->excludes[i];
 -			const char *exclude = x->pattern;
 -			int to_exclude = 1;
 -
 -			if (*exclude == '!') {
 -				to_exclude = 0;
 -				exclude++;
 -			}
 -
 -			if (!strchr(exclude, '/')) {
 -				/* match basename */
 -				const char *basename = strrchr(pathname, '/');
 -				basename = (basename) ? basename+1 : pathname;
 -				if (fnmatch(exclude, basename, 0) == 0)
 -					return to_exclude;
 -			}
 -			else {
 -				/* match with FNM_PATHNAME:
 -				 * exclude has base (baselen long) implicitly
 -				 * in front of it.
 -				 */
 -				int baselen = x->baselen;
 -				if (*exclude == '/')
 -					exclude++;
 -
 -				if (pathlen < baselen ||
 -				    (baselen && pathname[baselen-1] != '/') ||
 -				    strncmp(pathname, x->base, baselen))
 -				    continue;
 -
 -				if (fnmatch(exclude, pathname+baselen,
 -					    FNM_PATHNAME) == 0)
 -					return to_exclude;
 -			}
 -		}
 -	}
 -	return -1; /* undecided */
 -}
 -
 -static int excluded(const char *pathname)
 -{
 -	int pathlen = strlen(pathname);
 -	int st;
 -
 -	for (st = EXC_CMDL; st <= EXC_FILE; st++) {
 -		switch (excluded_1(pathname, pathlen, &exclude_list[st])) {
 -		case 0:
 -			return 0;
 -		case 1:
 -			return 1;
 -		}
 -	}
 -	return 0;
 -}
 -
 -struct nond_on_fs {
 -	int len;
 -	char name[FLEX_ARRAY]; /* more */
 -};
 -
 -static struct nond_on_fs **dir;
 -static int nr_dir;
 -static int dir_alloc;
 -
 -static void add_name(const char *pathname, int len)
 -{
 -	struct nond_on_fs *ent;
 -
 -	if (cache_name_pos(pathname, len) >= 0)
 -		return;
 -
 -	if (nr_dir == dir_alloc) {
 -		dir_alloc = alloc_nr(dir_alloc);
 -		dir = xrealloc(dir, dir_alloc*sizeof(ent));
 -	}
 -	ent = xmalloc(sizeof(*ent) + len + 1);
 -	ent->len = len;
 -	memcpy(ent->name, pathname, len);
 -	ent->name[len] = 0;
 -	dir[nr_dir++] = ent;
 -}
 -
 -static int dir_exists(const char *dirname, int len)
 -{
 -	int pos = cache_name_pos(dirname, len);
 -	if (pos >= 0)
 -		return 1;
 -	pos = -pos-1;
 -	if (pos >= active_nr) /* can't */
 -		return 0;
 -	return !strncmp(active_cache[pos]->name, dirname, len);
 -}
 -
 -/*
 - * Read a directory tree. We currently ignore anything but
 - * directories, regular files and symlinks. That's because git
 - * doesn't handle them at all yet. Maybe that will change some
 - * day.
 - *
 - * Also, we ignore the name ".git" (even if it is not a directory).
 - * That likely will not change.
 - */
 -static int read_directory(const char *path, const char *base, int baselen)
 -{
 -	DIR *fdir = opendir(path);
 -	int contents = 0;
 -
 -	if (fdir) {
 -		int exclude_stk;
 -		struct dirent *de;
 -		char fullname[MAXPATHLEN + 1];
 -		memcpy(fullname, base, baselen);
 -
 -		exclude_stk = push_exclude_per_directory(base, baselen);
 -
 -		while ((de = readdir(fdir)) != NULL) {
 -			int len;
 -
 -			if ((de->d_name[0] == '.') &&
 -			    (de->d_name[1] == 0 ||
 -			     !strcmp(de->d_name + 1, ".") ||
 -			     !strcmp(de->d_name + 1, "git")))
 -				continue;
 -			len = strlen(de->d_name);
 -			memcpy(fullname + baselen, de->d_name, len+1);
 -			if (excluded(fullname) != show_ignored) {
 -				if (!show_ignored || DTYPE(de) != DT_DIR) {
 -					continue;
 -				}
 -			}
 -
 -			switch (DTYPE(de)) {
 -			struct stat st;
 -			int subdir, rewind_base;
 -			default:
 -				continue;
 -			case DT_UNKNOWN:
 -				if (lstat(fullname, &st))
 -					continue;
 -				if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode))
 -					break;
 -				if (!S_ISDIR(st.st_mode))
 -					continue;
 -				/* fallthrough */
 -			case DT_DIR:
 -				memcpy(fullname + baselen + len, "/", 2);
 -				len++;
 -				rewind_base = nr_dir;
 -				subdir = read_directory(fullname, fullname,
 -				                        baselen + len);
 -				if (show_other_directories &&
 -				    (subdir || !hide_empty_directories) &&
 -				    !dir_exists(fullname, baselen + len)) {
 -					// Rewind the read subdirectory
 -					while (nr_dir > rewind_base)
 -						free(dir[--nr_dir]);
 -					break;
 -				}
 -				contents += subdir;
 -				continue;
 -			case DT_REG:
 -			case DT_LNK:
 -				break;
 -			}
 -			add_name(fullname, baselen + len);
 -			contents++;
 -		}
 -		closedir(fdir);
 -
 -		pop_exclude_per_directory(exclude_stk);
 -	}
 -
 -	return contents;
 -}
 -
 -static int cmp_name(const void *p1, const void *p2)
 -{
 -	const struct nond_on_fs *e1 = *(const struct nond_on_fs **)p1;
 -	const struct nond_on_fs *e2 = *(const struct nond_on_fs **)p2;
 -
 -	return cache_name_compare(e1->name, e1->len,
 -				  e2->name, e2->len);
 -}
+ 
+ /*
+  * Match a pathspec against a filename. The first "len" characters
+  * are the common prefix
+  */
+ static int match(const char **spec, char *ps_matched,
+ 		 const char *filename, int len)
+ {
+ 	const char *m;
+ 
+ 	while ((m = *spec++) != NULL) {
+ 		int matchlen = strlen(m + len);
+ 
+ 		if (!matchlen)
+ 			goto matched;
+ 		if (!strncmp(m + len, filename + len, matchlen)) {
+ 			if (m[len + matchlen - 1] == '/')
+ 				goto matched;
+ 			switch (filename[len + matchlen]) {
+ 			case '/': case '\0':
+ 				goto matched;
+ 			}
+ 		}
+ 		if (!fnmatch(m + len, filename + len, 0))
+ 			goto matched;
+ 		if (ps_matched)
+ 			ps_matched++;
+ 		continue;
+ 	matched:
+ 		if (ps_matched)
+ 			*ps_matched = 1;
+ 		return 1;
+ 	}
+ 	return 0;
+ }
+ 
 -static void show_dir_entry(const char *tag, struct nond_on_fs *ent)
++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 (pathspec && !match(pathspec, ps_matched, ent->name, len))
+ 		return;
+ 
+ 	fputs(tag, stdout);
+ 	write_name_quoted("", 0, ent->name + offset, line_terminator, stdout);
+ 	putchar(line_terminator);
+ }
+ 
 -static void show_other_files(void)
++static void show_other_files(struct dir_struct *dir)
+ {
+ 	int i;
 -	for (i = 0; i < nr_dir; i++) {
++	for (i = 0; i < dir->nr; i++) {
+ 		/* We should not have a matching entry, but we
+ 		 * may have an unmerged entry for this path.
+ 		 */
 -		struct nond_on_fs *ent = dir[i];
++		struct dir_entry *ent = dir->entries[i];
+ 		int pos = cache_name_pos(ent->name, ent->len);
+ 		struct cache_entry *ce;
+ 		if (0 <= pos)
+ 			die("bug in show-other-files");
+ 		pos = -pos - 1;
+ 		if (pos < active_nr) { 
+ 			ce = active_cache[pos];
+ 			if (ce_namelen(ce) == ent->len &&
+ 			    !memcmp(ce->name, ent->name, ent->len))
+ 				continue; /* Yup, this one exists unmerged */
+ 		}
+ 		show_dir_entry(tag_other, ent);
+ 	}
+ }
+ 
 -static void show_killed_files(void)
++static void show_killed_files(struct dir_struct *dir)
+ {
+ 	int i;
 -	for (i = 0; i < nr_dir; i++) {
 -		struct nond_on_fs *ent = dir[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[i]);
++			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 (pathspec && !match(pathspec, ps_matched, ce->name, len))
+ 		return;
+ 
+ 	if (tag && *tag && show_valid_bit &&
+ 	    (ce->ce_flags & htons(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);
+ 		write_name_quoted("", 0, ce->name + offset,
+ 				  line_terminator, stdout);
+ 		putchar(line_terminator);
+ 	}
+ 	else {
+ 		printf("%s%06o %s %d\t",
+ 		       tag,
+ 		       ntohl(ce->ce_mode),
+ 		       abbrev ? find_unique_abbrev(ce->sha1,abbrev)
+ 				: sha1_to_hex(ce->sha1),
+ 		       ce_stage(ce));
+ 		write_name_quoted("", 0, ce->name + offset,
+ 				  line_terminator, stdout);
+ 		putchar(line_terminator);
+ 	}
+ }
+ 
 -static void show_files(void)
++static void show_files(struct dir_struct *dir)
+ {
+ 	int i;
+ 
+ 	/* For cached/deleted files we don't need to even do the readdir */
+ 	if (show_others || show_killed) {
+ 		const char *path = ".", *base = "";
+ 		int baselen = prefix_len;
+ 
 -		if (baselen) {
++		if (baselen)
+ 			path = base = prefix;
 -			if (exclude_per_dir) {
 -				char *p, *pp = xmalloc(baselen+1);
 -				memcpy(pp, prefix, baselen+1);
 -				p = pp;
 -				while (1) {
 -					char save = *p;
 -					*p = 0;
 -					push_exclude_per_directory(pp, p-pp);
 -					*p++ = save;
 -					if (!save)
 -						break;
 -					p = strchr(p, '/');
 -					if (p)
 -						p++;
 -					else
 -						p = pp + baselen;
 -				}
 -				free(pp);
 -			}
 -		}
 -		read_directory(path, base, baselen);
 -		qsort(dir, nr_dir, sizeof(struct nond_on_fs *), cmp_name);
++		read_directory(dir, path, base, baselen);
+ 		if (show_others)
 -			show_other_files();
++			show_other_files(dir);
+ 		if (show_killed)
 -			show_killed_files();
++			show_killed_files(dir);
+ 	}
+ 	if (show_cached | show_stage) {
+ 		for (i = 0; i < active_nr; i++) {
+ 			struct cache_entry *ce = active_cache[i];
 -			if (excluded(ce->name) != show_ignored)
++			if (excluded(dir, ce->name) != dir->show_ignored)
+ 				continue;
+ 			if (show_unmerged && !ce_stage(ce))
+ 				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 (excluded(ce->name) != show_ignored)
++			if (excluded(dir, ce->name) != dir->show_ignored)
+ 				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(void)
+ {
+ 	int pos = cache_name_pos(prefix, prefix_len);
+ 	unsigned int first, last;
+ 
+ 	if (pos < 0)
+ 		pos = -pos-1;
+ 	active_cache += pos;
+ 	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 void verify_pathspec(void)
+ {
+ 	const char **p, *n, *prev;
+ 	char *real_prefix;
+ 	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 '..'");
+ 
+ 	real_prefix = NULL;
+ 	prefix_len = max;
+ 	if (max) {
+ 		real_prefix = xmalloc(max + 1);
+ 		memcpy(real_prefix, prev, max);
+ 		real_prefix[max] = 0;
+ 	}
+ 	prefix = real_prefix;
+ }
+ 
+ static const char ls_files_usage[] =
+ 	"git-ls-files [-z] [-t] [-v] (--[cached|deleted|others|stage|unmerged|killed|modified])* "
+ 	"[ --ignored ] [--exclude=<pattern>] [--exclude-from=<file>] "
+ 	"[ --exclude-per-directory=<filename> ] [--full-name] [--abbrev] "
+ 	"[--] [<file>]*";
+ 
+ int cmd_ls_files(int argc, const char **argv, char** envp)
+ {
+ 	int i;
+ 	int exc_given = 0;
++	struct dir_struct dir;
+ 
++	memset(&dir, 0, sizeof(dir));
+ 	prefix = setup_git_directory();
+ 	if (prefix)
+ 		prefix_offset = strlen(prefix);
+ 	git_config(git_default_config);
+ 
+ 	for (i = 1; i < argc; i++) {
+ 		const char *arg = argv[i];
+ 
+ 		if (!strcmp(arg, "--")) {
+ 			i++;
+ 			break;
+ 		}
+ 		if (!strcmp(arg, "-z")) {
+ 			line_terminator = 0;
+ 			continue;
+ 		}
+ 		if (!strcmp(arg, "-t") || !strcmp(arg, "-v")) {
+ 			tag_cached = "H ";
+ 			tag_unmerged = "M ";
+ 			tag_removed = "R ";
+ 			tag_modified = "C ";
+ 			tag_other = "? ";
+ 			tag_killed = "K ";
+ 			if (arg[1] == 'v')
+ 				show_valid_bit = 1;
+ 			continue;
+ 		}
+ 		if (!strcmp(arg, "-c") || !strcmp(arg, "--cached")) {
+ 			show_cached = 1;
+ 			continue;
+ 		}
+ 		if (!strcmp(arg, "-d") || !strcmp(arg, "--deleted")) {
+ 			show_deleted = 1;
+ 			continue;
+ 		}
+ 		if (!strcmp(arg, "-m") || !strcmp(arg, "--modified")) {
+ 			show_modified = 1;
+ 			continue;
+ 		}
+ 		if (!strcmp(arg, "-o") || !strcmp(arg, "--others")) {
+ 			show_others = 1;
+ 			continue;
+ 		}
+ 		if (!strcmp(arg, "-i") || !strcmp(arg, "--ignored")) {
 -			show_ignored = 1;
++			dir.show_ignored = 1;
+ 			continue;
+ 		}
+ 		if (!strcmp(arg, "-s") || !strcmp(arg, "--stage")) {
+ 			show_stage = 1;
+ 			continue;
+ 		}
+ 		if (!strcmp(arg, "-k") || !strcmp(arg, "--killed")) {
+ 			show_killed = 1;
+ 			continue;
+ 		}
+ 		if (!strcmp(arg, "--directory")) {
 -			show_other_directories = 1;
++			dir.show_other_directories = 1;
+ 			continue;
+ 		}
+ 		if (!strcmp(arg, "--no-empty-directory")) {
 -			hide_empty_directories = 1;
++			dir.hide_empty_directories = 1;
+ 			continue;
+ 		}
+ 		if (!strcmp(arg, "-u") || !strcmp(arg, "--unmerged")) {
+ 			/* There's no point in showing unmerged unless
+ 			 * you also show the stage information.
+ 			 */
+ 			show_stage = 1;
+ 			show_unmerged = 1;
+ 			continue;
+ 		}
+ 		if (!strcmp(arg, "-x") && i+1 < argc) {
+ 			exc_given = 1;
 -			add_exclude(argv[++i], "", 0, &exclude_list[EXC_CMDL]);
++			add_exclude(argv[++i], "", 0, &dir.exclude_list[EXC_CMDL]);
+ 			continue;
+ 		}
+ 		if (!strncmp(arg, "--exclude=", 10)) {
+ 			exc_given = 1;
 -			add_exclude(arg+10, "", 0, &exclude_list[EXC_CMDL]);
++			add_exclude(arg+10, "", 0, &dir.exclude_list[EXC_CMDL]);
+ 			continue;
+ 		}
+ 		if (!strcmp(arg, "-X") && i+1 < argc) {
+ 			exc_given = 1;
 -			add_excludes_from_file(argv[++i]);
++			add_excludes_from_file(&dir, argv[++i]);
+ 			continue;
+ 		}
+ 		if (!strncmp(arg, "--exclude-from=", 15)) {
+ 			exc_given = 1;
 -			add_excludes_from_file(arg+15);
++			add_excludes_from_file(&dir, arg+15);
+ 			continue;
+ 		}
+ 		if (!strncmp(arg, "--exclude-per-directory=", 24)) {
+ 			exc_given = 1;
 -			exclude_per_dir = arg + 24;
++			dir.exclude_per_dir = arg + 24;
+ 			continue;
+ 		}
+ 		if (!strcmp(arg, "--full-name")) {
+ 			prefix_offset = 0;
+ 			continue;
+ 		}
+ 		if (!strcmp(arg, "--error-unmatch")) {
+ 			error_unmatch = 1;
+ 			continue;
+ 		}
+ 		if (!strncmp(arg, "--abbrev=", 9)) {
+ 			abbrev = strtoul(arg+9, NULL, 10);
+ 			if (abbrev && abbrev < MINIMUM_ABBREV)
+ 				abbrev = MINIMUM_ABBREV;
+ 			else if (abbrev > 40)
+ 				abbrev = 40;
+ 			continue;
+ 		}
+ 		if (!strcmp(arg, "--abbrev")) {
+ 			abbrev = DEFAULT_ABBREV;
+ 			continue;
+ 		}
+ 		if (*arg == '-')
+ 			usage(ls_files_usage);
+ 		break;
+ 	}
+ 
+ 	pathspec = get_pathspec(prefix, argv + i);
+ 
+ 	/* Verify that the pathspec matches the prefix */
+ 	if (pathspec)
+ 		verify_pathspec();
+ 
+ 	/* Treat unmatching pathspec elements as errors */
+ 	if (pathspec && error_unmatch) {
+ 		int num;
+ 		for (num = 0; pathspec[num]; num++)
+ 			;
+ 		ps_matched = xcalloc(1, num);
+ 	}
+ 
 -	if (show_ignored && !exc_given) {
++	if (dir.show_ignored && !exc_given) {
+ 		fprintf(stderr, "%s: --ignored needs some exclude pattern\n",
+ 			argv[0]);
+ 		exit(1);
+ 	}
+ 
+ 	/* 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;
+ 
+ 	read_cache();
+ 	if (prefix)
+ 		prune_cache();
 -	show_files();
++	show_files(&dir);
+ 
+ 	if (ps_matched) {
+ 		/* We need to make sure all pathspec matched otherwise
+ 		 * it is an error.
+ 		 */
+ 		int num, errors = 0;
+ 		for (num = 0; pathspec[num]; num++) {
+ 			if (ps_matched[num])
+ 				continue;
+ 			error("pathspec '%s' did not match any.",
+ 			      pathspec[num] + prefix_offset);
+ 			errors++;
+ 		}
+ 		return errors ? 1 : 0;
+ 	}
+ 
+ 	return 0;
+ }
diff --cc git.c
index 4a2c4bab,38e84618..9ce458e6
--- a/git.c
+++ b/git.c
@@@ -50,11 -50,22 +50,24 @@@ static void handle_internal_command(in
  		{ "count-objects", cmd_count_objects },
  		{ "diff", cmd_diff },
  		{ "grep", cmd_grep },
 +		{ "rm", cmd_rm },
 +		{ "add", cmd_add },
  		{ "rev-list", cmd_rev_list },
  		{ "init-db", cmd_init_db },
- 		{ "check-ref-format", cmd_check_ref_format }
+ 		{ "tar-tree", cmd_tar_tree },
+ 		{ "upload-tar", cmd_upload_tar },
+ 		{ "check-ref-format", cmd_check_ref_format },
+ 		{ "ls-files", cmd_ls_files },
+ 		{ "ls-tree", cmd_ls_tree },
+ 		{ "tar-tree", cmd_tar_tree },
+ 		{ "read-tree", cmd_read_tree },
+ 		{ "commit-tree", cmd_commit_tree },
+ 		{ "apply", cmd_apply },
+ 		{ "show-branch", cmd_show_branch },
+ 		{ "diff-files", cmd_diff_files },
+ 		{ "diff-index", cmd_diff_index },
+ 		{ "diff-stages", cmd_diff_stages },
+ 		{ "diff-tree", cmd_diff_tree }
  	};
  	int i;