Make git-checkout-index a builtin

Signed-off-by: Junio C Hamano <junkio@cox.net>

Makefile

@@ -173,7 +173,6 @@ SIMPLE_PROGRAMS = \
 
 # ... and all the rest that could be moved out of bindir to gitexecdir
 PROGRAMS = \
-	git-checkout-index$X \
 	git-convert-objects$X git-fetch-pack$X git-fsck-objects$X \
 	git-hash-object$X git-index-pack$X git-local-fetch$X \
 	git-merge-base$X \
@@ -187,7 +186,9 @@ PROGRAMS = \
 	git-pack-redundant$X git-var$X \
 	git-describe$X git-merge-tree$X git-blame$X git-imap-send$X
 
-BUILT_INS = git-log$X git-whatchanged$X git-show$X git-update-ref$X \
+BUILT_INS = \
+	git-checkout-index$X \
+	git-log$X git-whatchanged$X git-show$X git-update-ref$X \
 	git-count-objects$X git-diff$X git-push$X git-mailsplit$X \
 	git-grep$X git-add$X git-rm$X git-rev-list$X git-stripspace$X \
 	git-check-ref-format$X git-rev-parse$X git-mailinfo$X \
@@ -245,6 +246,7 @@ LIB_OBJS = \
 	alloc.o merge-file.o path-list.o $(DIFF_OBJS)
 
 BUILTIN_OBJS = \
+	builtin-checkout-index.o \
 	builtin-log.o builtin-help.o builtin-count.o builtin-diff.o builtin-push.o \
 	builtin-grep.o builtin-add.o builtin-rev-list.o builtin-check-ref-format.o \
 	builtin-rm.o builtin-init-db.o builtin-rev-parse.o \

builtin-checkout-index.c

@@ -42,8 +42,6 @@
 #include "cache-tree.h"
 
 #define CHECKOUT_ALL 4
-static const char *prefix;
-static int prefix_length;
 static int line_termination = '\n';
 static int checkout_stage; /* default to checkout stage0 */
 static int to_tempfile;
@@ -51,7 +49,7 @@ static char topath[4][MAXPATHLEN+1];
 
 static struct checkout state;
 
-static void write_tempfile_record (const char *name)
+static void write_tempfile_record(const char *name, int prefix_length)
 {
 	int i;
 
@@ -77,7 +75,7 @@ static void write_tempfile_record (const char *name)
 	}
 }
 
-static int checkout_file(const char *name)
+static int checkout_file(const char *name, int prefix_length)
 {
 	int namelen = strlen(name);
 	int pos = cache_name_pos(name, namelen);
@@ -106,7 +104,7 @@ static int checkout_file(const char *name)
 
 	if (did_checkout) {
 		if (to_tempfile)
-			write_tempfile_record(name);
+			write_tempfile_record(name, prefix_length);
 		return errs > 0 ? -1 : 0;
 	}
 
@@ -124,7 +122,7 @@ static int checkout_file(const char *name)
 	return -1;
 }
 
-static int checkout_all(void)
+static int checkout_all(const char *prefix, int prefix_length)
 {
 	int i, errs = 0;
 	struct cache_entry* last_ce = NULL;
@@ -141,7 +139,7 @@ static int checkout_all(void)
 		if (last_ce && to_tempfile) {
 			if (ce_namelen(last_ce) != ce_namelen(ce)
 			    || memcmp(last_ce->name, ce->name, ce_namelen(ce)))
-				write_tempfile_record(last_ce->name);
+				write_tempfile_record(last_ce->name, prefix_length);
 		}
 		if (checkout_entry(ce, &state,
 		    to_tempfile ? topath[ce_stage(ce)] : NULL) < 0)
@@ -149,7 +147,7 @@ static int checkout_all(void)
 		last_ce = ce;
 	}
 	if (last_ce && to_tempfile)
-		write_tempfile_record(last_ce->name);
+		write_tempfile_record(last_ce->name, prefix_length);
 	if (errs)
 		/* we have already done our error reporting.
 		 * exit with the same code as die().
@@ -163,16 +161,16 @@ static const char checkout_cache_usage[] =
 
 static struct lock_file lock_file;
 
-int main(int argc, char **argv)
+int cmd_checkout_index(int argc, const char **argv, const char *prefix)
 {
 	int i;
 	int newfd = -1;
 	int all = 0;
 	int read_from_stdin = 0;
+	int prefix_length;
 
-	state.base_dir = "";
-	prefix = setup_git_directory();
 	git_config(git_default_config);
+	state.base_dir = "";
 	prefix_length = prefix ? strlen(prefix) : 0;
 
 	if (read_cache() < 0) {
@@ -270,7 +268,7 @@ int main(int argc, char **argv)
 		if (read_from_stdin)
 			die("git-checkout-index: don't mix '--stdin' and explicit filenames");
 		p = prefix_path(prefix, prefix_length, arg);
-		checkout_file(p);
+		checkout_file(p, prefix_length);
 		if (p < arg || p > arg + strlen(arg))
 			free((char*)p);
 	}
@@ -292,7 +290,7 @@ int main(int argc, char **argv)
 			else
 				path_name = buf.buf;
 			p = prefix_path(prefix, prefix_length, path_name);
-			checkout_file(p);
+			checkout_file(p, prefix_length);
 			if (p < path_name || p > path_name + strlen(path_name))
 				free((char *)p);
 			if (path_name != buf.buf)
@@ -301,7 +299,7 @@ int main(int argc, char **argv)
 	}
 
 	if (all)
-		checkout_all();
+		checkout_all(prefix, prefix_length);
 
 	if (0 <= newfd &&
 	    (write_cache(newfd, active_cache, active_nr) ||

builtin.h

@@ -53,6 +53,7 @@ extern int cmd_name_rev(int argc, const char **argv, const char *prefix);
 extern int cmd_pack_objects(int argc, const char **argv, const char *prefix);
 extern int cmd_unpack_objects(int argc, const char **argv, const char *prefix);
 extern int cmd_symbolic_ref(int argc, const char **argv, const char *prefix);
+extern int cmd_checkout_index(int argc, const char **argv, const char *prefix);
 
 extern int cmd_write_tree(int argc, const char **argv, const char *prefix);
 extern int write_tree(unsigned char *sha1, int missing_ok, const char *prefix);

git.c

@@ -269,6 +269,7 @@ static void handle_internal_command(int argc, const char **argv, char **envp)
 		{ "pack-objects", cmd_pack_objects, NEEDS_PREFIX },
 		{ "unpack-objects", cmd_unpack_objects, NEEDS_PREFIX },
 		{ "symbolic-ref", cmd_symbolic_ref, NEEDS_PREFIX },
+		{ "checkout-index", cmd_checkout_index, NEEDS_PREFIX },
 	};
 	int i;