From 217542640ed219c980fff2b3c307c4520120f20f Mon Sep 17 00:00:00 2001
From: Junio C Hamano <junkio@cox.net>
Date: Thu, 18 May 2006 18:46:44 -0700
Subject: [PATCH 1/9] built-in tar-tree and remote tar-tree

This makes tar-tree a built-in.  As an added bonus, you can now
say:

	git tar-tree --remote=remote-repository <ent> [<base>]

This does not work with git-daemon yet, but should work with
localhost and git over ssh transports.

Signed-off-by: Junio C Hamano <junkio@cox.net>
---
 Makefile                         |  6 +--
 tar-tree.c => builtin-tar-tree.c | 62 +++++++++++++++++++++++++-
 builtin-upload-tar.c             | 74 ++++++++++++++++++++++++++++++++
 builtin.h                        |  2 +
 git.c                            |  4 +-
 5 files changed, 142 insertions(+), 6 deletions(-)
 rename tar-tree.c => builtin-tar-tree.c (85%)
 create mode 100644 builtin-upload-tar.c

diff --git a/Makefile b/Makefile
index 4fd6520b7e..f4bcec496a 100644
--- a/Makefile
+++ b/Makefile
@@ -161,7 +161,7 @@ PROGRAMS = \
 	git-receive-pack$X git-rev-parse$X \
 	git-send-pack$X git-show-branch$X git-shell$X \
 	git-show-index$X git-ssh-fetch$X \
-	git-ssh-upload$X git-tar-tree$X git-unpack-file$X \
+	git-ssh-upload$X git-unpack-file$X \
 	git-unpack-objects$X git-update-index$X git-update-server-info$X \
 	git-upload-pack$X git-verify-pack$X git-write-tree$X \
 	git-update-ref$X git-symbolic-ref$X \
@@ -171,7 +171,7 @@ 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-init-db$X git-tar-tree$X git-upload-tar$X
 
 # what 'all' will build and 'install' will install, in gitexecdir
 ALL_PROGRAMS = $(PROGRAMS) $(SIMPLE_PROGRAMS) $(SCRIPTS)
@@ -220,7 +220,7 @@ 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-init-db.o builtin-tar-tree.o builtin-upload-tar.o
 
 GITLIBS = $(LIB_FILE) $(XDIFF_LIB)
 LIBS = $(GITLIBS) -lz
diff --git a/tar-tree.c b/builtin-tar-tree.c
similarity index 85%
rename from tar-tree.c
rename to builtin-tar-tree.c
index 33087366c3..e97e0af985 100644
--- a/tar-tree.c
+++ b/builtin-tar-tree.c
@@ -7,11 +7,14 @@
 #include "commit.h"
 #include "strbuf.h"
 #include "tar.h"
+#include "builtin.h"
+#include "pkt-line.h"
 
 #define RECORDSIZE	(512)
 #define BLOCKSIZE	(RECORDSIZE * 20)
 
-static const char tar_tree_usage[] = "git-tar-tree <key> [basedir]";
+static const char tar_tree_usage[] =
+"git-tar-tree [--remote=<repo>] <ent> [basedir]";
 
 static char block[BLOCKSIZE];
 static unsigned long offset;
@@ -301,7 +304,7 @@ static void traverse_tree(struct tree_desc *tree, struct strbuf *path)
 	}
 }
 
-int main(int argc, char **argv)
+int generate_tar(int argc, const char **argv)
 {
 	unsigned char sha1[20], tree_sha1[20];
 	struct commit *commit;
@@ -348,3 +351,58 @@ int main(int argc, char **argv)
 	free(current_path.buf);
 	return 0;
 }
+
+static const char *exec = "git-upload-tar";
+
+static int remote_tar(int argc, const char **argv)
+{
+	int fd[2], ret, len;
+	pid_t pid;
+	char buf[1024];
+	char *url;
+
+	if (argc < 3 || 4 < argc)
+		usage(tar_tree_usage);
+
+	/* --remote=<repo> */
+	url = strdup(argv[1]+9);
+	pid = git_connect(fd, url, exec);
+	if (pid < 0)
+		return 1;
+
+	packet_write(fd[1], "want %s\n", argv[2]);
+	if (argv[3])
+		packet_write(fd[1], "base %s\n", argv[3]);
+	packet_flush(fd[1]);
+
+	len = packet_read_line(fd[0], buf, sizeof(buf));
+	if (!len)
+		die("git-tar-tree: expected ACK/NAK, got EOF");
+	if (buf[len-1] == '\n')
+		buf[--len] = 0;
+	if (strcmp(buf, "ACK")) {
+		if (5 < len && !strncmp(buf, "NACK ", 5))
+			die("git-tar-tree: NACK %s", buf + 5);
+		die("git-tar-tree: protocol error");
+	}
+	/* expect a flush */
+	len = packet_read_line(fd[0], buf, sizeof(buf));
+	if (len)
+		die("git-tar-tree: expected a flush");
+
+	/* Now, start reading from fd[0] and spit it out to stdout */
+	ret = copy_fd(fd[0], 1);
+	close(fd[0]);
+
+	ret |= finish_connect(pid);
+	return !!ret;
+}
+
+int cmd_tar_tree(int argc, const char **argv, char **envp)
+{
+	if (argc < 2)
+		usage(tar_tree_usage);
+	if (!strncmp("--remote=", argv[1], 9))
+		return remote_tar(argc, argv);
+	return generate_tar(argc, argv);
+}
diff --git a/builtin-upload-tar.c b/builtin-upload-tar.c
new file mode 100644
index 0000000000..d4fa7b56c3
--- /dev/null
+++ b/builtin-upload-tar.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2006 Junio C Hamano
+ */
+#include "cache.h"
+#include "pkt-line.h"
+#include "exec_cmd.h"
+#include "builtin.h"
+
+static const char upload_tar_usage[] = "git-upload-tar <repo>";
+
+static int nak(const char *reason)
+{
+	packet_write(1, "NACK %s\n", reason);
+	packet_flush(1);
+	return 1;
+}
+
+int cmd_upload_tar(int argc, const char **argv, char **envp)
+{
+	int len;
+	const char *dir = argv[1];
+	char buf[8192];
+	unsigned char sha1[20];
+	char *base = NULL;
+	char hex[41];
+	int ac;
+	const char *av[4];
+
+	if (argc != 2)
+		usage(upload_tar_usage);
+	if (strlen(dir) < sizeof(buf)-1)
+		strcpy(buf, dir); /* enter-repo smudges its argument */
+	else
+		packet_write(1, "NACK insanely long repository name %s\n", dir);
+	if (!enter_repo(buf, 0)) {
+		packet_write(1, "NACK not a git archive %s\n", dir);
+		packet_flush(1);
+		return 1;
+	}
+
+	len = packet_read_line(0, buf, sizeof(buf));
+	if (len < 5 || strncmp("want ", buf, 5))
+		return nak("expected want");
+	if (buf[len-1] == '\n')
+		buf[--len] = 0;
+	if (get_sha1(buf + 5, sha1))
+		return nak("expected sha1");
+        strcpy(hex, sha1_to_hex(sha1));
+
+	len = packet_read_line(0, buf, sizeof(buf));
+	if (len) {
+		if (len < 5 || strncmp("base ", buf, 5))
+			return nak("expected (optional) base");
+		if (buf[len-1] == '\n')
+			buf[--len] = 0;
+		base = strdup(buf + 5);
+		len = packet_read_line(0, buf, sizeof(buf));
+	}
+	if (len)
+		return nak("expected flush");
+
+	packet_write(1, "ACK\n");
+	packet_flush(1);
+
+	ac = 0;
+	av[ac++] = "tar-tree";
+	av[ac++] = hex;
+	if (base)
+		av[ac++] = base;
+	av[ac++] = NULL;
+	execv_git_cmd(av);
+	/* should it return that is an error */
+	return 1;
+}
diff --git a/builtin.h b/builtin.h
index 60541262c4..f22783c499 100644
--- a/builtin.h
+++ b/builtin.h
@@ -27,5 +27,7 @@ extern int cmd_grep(int argc, const char **argv, char **envp);
 extern int cmd_rev_list(int argc, const char **argv, char **envp);
 extern int cmd_check_ref_format(int argc, const char **argv, char **envp);
 extern int cmd_init_db(int argc, const char **argv, char **envp);
+extern int cmd_tar_tree(int argc, const char **argv, char **envp);
+extern int cmd_upload_tar(int argc, const char **argv, char **envp);
 
 #endif
diff --git a/git.c b/git.c
index 3216d311b2..fd8e9bf7f2 100644
--- a/git.c
+++ b/git.c
@@ -50,8 +50,10 @@ static void handle_internal_command(int argc, const char **argv, char **envp)
 		{ "count-objects", cmd_count_objects },
 		{ "diff", cmd_diff },
 		{ "grep", cmd_grep },
-		{ "rev-list", cmd_rev_list },
 		{ "init-db", cmd_init_db },
+		{ "tar-tree", cmd_tar_tree },
+		{ "upload-tar", cmd_upload_tar },
+		{ "rev-list", cmd_rev_list },
 		{ "check-ref-format", cmd_check_ref_format }
 	};
 	int i;

From 0864f26421b3c599b462bc867de948d14b268d76 Mon Sep 17 00:00:00 2001
From: Peter Eriksen <s022018@student.dtu.dk>
Date: Tue, 23 May 2006 14:15:29 +0200
Subject: [PATCH 2/9] Builtin git-ls-files.

Signed-off-by: Peter Eriksen <s022018@student.dtu.dk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
---
 Makefile                         | 6 +++---
 ls-files.c => builtin-ls-files.c | 3 ++-
 builtin.h                        | 1 +
 git.c                            | 3 ++-
 4 files changed, 8 insertions(+), 5 deletions(-)
 rename ls-files.c => builtin-ls-files.c (99%)

diff --git a/Makefile b/Makefile
index 5423b7a79b..c540d7d9f1 100644
--- a/Makefile
+++ b/Makefile
@@ -155,7 +155,7 @@ PROGRAMS = \
 	git-diff-index$X git-diff-stages$X \
 	git-diff-tree$X git-fetch-pack$X git-fsck-objects$X \
 	git-hash-object$X git-index-pack$X git-local-fetch$X \
-	git-ls-files$X git-ls-tree$X git-mailinfo$X git-merge-base$X \
+	git-ls-tree$X git-mailinfo$X git-merge-base$X \
 	git-merge-index$X git-mktag$X git-mktree$X git-pack-objects$X git-patch-id$X \
 	git-peek-remote$X git-prune-packed$X git-read-tree$X \
 	git-receive-pack$X git-rev-parse$X \
@@ -171,7 +171,7 @@ PROGRAMS = \
 BUILT_INS = git-log$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$X
+	git-init-db$X git-ls-files$X
 
 # what 'all' will build and 'install' will install, in gitexecdir
 ALL_PROGRAMS = $(PROGRAMS) $(SIMPLE_PROGRAMS) $(SCRIPTS)
@@ -220,7 +220,7 @@ 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-init-db.o builtin-ls-files.o
 
 GITLIBS = $(LIB_FILE) $(XDIFF_LIB)
 LIBS = $(GITLIBS) -lz
diff --git a/ls-files.c b/builtin-ls-files.c
similarity index 99%
rename from ls-files.c
rename to builtin-ls-files.c
index 4a4af1ca3b..3a0c5f2150 100644
--- a/ls-files.c
+++ b/builtin-ls-files.c
@@ -10,6 +10,7 @@
 
 #include "cache.h"
 #include "quote.h"
+#include "builtin.h"
 
 static int abbrev = 0;
 static int show_deleted = 0;
@@ -648,7 +649,7 @@ static const char ls_files_usage[] =
 	"[ --exclude-per-directory=<filename> ] [--full-name] [--abbrev] "
 	"[--] [<file>]*";
 
-int main(int argc, const char **argv)
+int cmd_ls_files(int argc, const char **argv, char** envp)
 {
 	int i;
 	int exc_given = 0;
diff --git a/builtin.h b/builtin.h
index 60541262c4..a0713d3747 100644
--- a/builtin.h
+++ b/builtin.h
@@ -27,5 +27,6 @@ extern int cmd_grep(int argc, const char **argv, char **envp);
 extern int cmd_rev_list(int argc, const char **argv, char **envp);
 extern int cmd_check_ref_format(int argc, const char **argv, char **envp);
 extern int cmd_init_db(int argc, const char **argv, char **envp);
+extern int cmd_ls_files(int argc, const char **argv, char **envp);
 
 #endif
diff --git a/git.c b/git.c
index 3216d311b2..9cfa9ebced 100644
--- a/git.c
+++ b/git.c
@@ -52,7 +52,8 @@ static void handle_internal_command(int argc, const char **argv, char **envp)
 		{ "grep", cmd_grep },
 		{ "rev-list", cmd_rev_list },
 		{ "init-db", cmd_init_db },
-		{ "check-ref-format", cmd_check_ref_format }
+		{ "check-ref-format", cmd_check_ref_format },
+		{ "ls-files", cmd_ls_files }
 	};
 	int i;
 

From aae01bda7f6d3224cf6b2ce0aa9aa668ce35d0b7 Mon Sep 17 00:00:00 2001
From: Peter Eriksen <s022018@student.dtu.dk>
Date: Tue, 23 May 2006 14:15:30 +0200
Subject: [PATCH 3/9] Builtin git-ls-tree.

Signed-off-by: Peter Eriksen <s022018@student.dtu.dk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
---
 Makefile                       | 6 +++---
 ls-tree.c => builtin-ls-tree.c | 5 +++--
 builtin.h                      | 1 +
 git.c                          | 3 ++-
 4 files changed, 9 insertions(+), 6 deletions(-)
 rename ls-tree.c => builtin-ls-tree.c (96%)

diff --git a/Makefile b/Makefile
index c540d7d9f1..2afd089a0d 100644
--- a/Makefile
+++ b/Makefile
@@ -155,7 +155,7 @@ PROGRAMS = \
 	git-diff-index$X git-diff-stages$X \
 	git-diff-tree$X git-fetch-pack$X git-fsck-objects$X \
 	git-hash-object$X git-index-pack$X git-local-fetch$X \
-	git-ls-tree$X git-mailinfo$X git-merge-base$X \
+	git-mailinfo$X git-merge-base$X \
 	git-merge-index$X git-mktag$X git-mktree$X git-pack-objects$X git-patch-id$X \
 	git-peek-remote$X git-prune-packed$X git-read-tree$X \
 	git-receive-pack$X git-rev-parse$X \
@@ -171,7 +171,7 @@ PROGRAMS = \
 BUILT_INS = git-log$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-init-db$X git-ls-files$X git-ls-tree$X
 
 # what 'all' will build and 'install' will install, in gitexecdir
 ALL_PROGRAMS = $(PROGRAMS) $(SIMPLE_PROGRAMS) $(SCRIPTS)
@@ -220,7 +220,7 @@ 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-init-db.o builtin-ls-files.o builtin-ls-tree.o
 
 GITLIBS = $(LIB_FILE) $(XDIFF_LIB)
 LIBS = $(GITLIBS) -lz
diff --git a/ls-tree.c b/builtin-ls-tree.c
similarity index 96%
rename from ls-tree.c
rename to builtin-ls-tree.c
index f2b3bc1231..48385d59f6 100644
--- a/ls-tree.c
+++ b/builtin-ls-tree.c
@@ -7,6 +7,7 @@
 #include "blob.h"
 #include "tree.h"
 #include "quote.h"
+#include "builtin.h"
 
 static int line_termination = '\n';
 #define LS_RECURSIVE 1
@@ -15,7 +16,7 @@ static int line_termination = '\n';
 #define LS_NAME_ONLY 8
 static int abbrev = 0;
 static int ls_options = 0;
-const char **pathspec;
+static const char **pathspec;
 static int chomp_prefix = 0;
 static const char *prefix;
 
@@ -84,7 +85,7 @@ static int show_tree(unsigned char *sha1, const char *base, int baselen,
 	return retval;
 }
 
-int main(int argc, const char **argv)
+int cmd_ls_tree(int argc, const char **argv, char **envp)
 {
 	unsigned char sha1[20];
 	struct tree *tree;
diff --git a/builtin.h b/builtin.h
index a0713d3747..951f206372 100644
--- a/builtin.h
+++ b/builtin.h
@@ -28,5 +28,6 @@ extern int cmd_rev_list(int argc, const char **argv, char **envp);
 extern int cmd_check_ref_format(int argc, const char **argv, char **envp);
 extern int cmd_init_db(int argc, const char **argv, char **envp);
 extern int cmd_ls_files(int argc, const char **argv, char **envp);
+extern int cmd_ls_tree(int argc, const char **argv, char **envp);
 
 #endif
diff --git a/git.c b/git.c
index 9cfa9ebced..8574775418 100644
--- a/git.c
+++ b/git.c
@@ -53,7 +53,8 @@ static void handle_internal_command(int argc, const char **argv, char **envp)
 		{ "rev-list", cmd_rev_list },
 		{ "init-db", cmd_init_db },
 		{ "check-ref-format", cmd_check_ref_format },
-		{ "ls-files", cmd_ls_files }
+		{ "ls-files", cmd_ls_files },
+		{ "ls-tree", cmd_ls_tree }
 	};
 	int i;
 

From 56d1398ad305498faf57d6e433f97ad393d7909e Mon Sep 17 00:00:00 2001
From: Peter Eriksen <s022018@student.dtu.dk>
Date: Tue, 23 May 2006 14:15:31 +0200
Subject: [PATCH 4/9] Builtin git-tar-tree.

Signed-off-by: Peter Eriksen <s022018@student.dtu.dk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
---
 Makefile                         | 8 +++++---
 tar-tree.c => builtin-tar-tree.c | 3 ++-
 builtin.h                        | 1 +
 git.c                            | 3 ++-
 4 files changed, 10 insertions(+), 5 deletions(-)
 rename tar-tree.c => builtin-tar-tree.c (99%)

diff --git a/Makefile b/Makefile
index 2afd089a0d..a3164f8ef0 100644
--- a/Makefile
+++ b/Makefile
@@ -161,7 +161,7 @@ PROGRAMS = \
 	git-receive-pack$X git-rev-parse$X \
 	git-send-pack$X git-show-branch$X git-shell$X \
 	git-show-index$X git-ssh-fetch$X \
-	git-ssh-upload$X git-tar-tree$X git-unpack-file$X \
+	git-ssh-upload$X git-unpack-file$X \
 	git-unpack-objects$X git-update-index$X git-update-server-info$X \
 	git-upload-pack$X git-verify-pack$X git-write-tree$X \
 	git-update-ref$X git-symbolic-ref$X \
@@ -171,7 +171,8 @@ 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-init-db$X git-ls-files$X git-ls-tree$X \
+	git-tar-tree$X
 
 # what 'all' will build and 'install' will install, in gitexecdir
 ALL_PROGRAMS = $(PROGRAMS) $(SIMPLE_PROGRAMS) $(SCRIPTS)
@@ -220,7 +221,8 @@ 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-init-db.o builtin-ls-files.o builtin-ls-tree.o \
+        builtin-tar-tree.o
 
 GITLIBS = $(LIB_FILE) $(XDIFF_LIB)
 LIBS = $(GITLIBS) -lz
diff --git a/tar-tree.c b/builtin-tar-tree.c
similarity index 99%
rename from tar-tree.c
rename to builtin-tar-tree.c
index 33087366c3..6ada04ce38 100644
--- a/tar-tree.c
+++ b/builtin-tar-tree.c
@@ -7,6 +7,7 @@
 #include "commit.h"
 #include "strbuf.h"
 #include "tar.h"
+#include "builtin.h"
 
 #define RECORDSIZE	(512)
 #define BLOCKSIZE	(RECORDSIZE * 20)
@@ -301,7 +302,7 @@ static void traverse_tree(struct tree_desc *tree, struct strbuf *path)
 	}
 }
 
-int main(int argc, char **argv)
+int cmd_tar_tree(int argc, const char **argv, char** envp)
 {
 	unsigned char sha1[20], tree_sha1[20];
 	struct commit *commit;
diff --git a/builtin.h b/builtin.h
index 951f206372..d210543948 100644
--- a/builtin.h
+++ b/builtin.h
@@ -29,5 +29,6 @@ extern int cmd_check_ref_format(int argc, const char **argv, char **envp);
 extern int cmd_init_db(int argc, const char **argv, char **envp);
 extern int cmd_ls_files(int argc, const char **argv, char **envp);
 extern int cmd_ls_tree(int argc, const char **argv, char **envp);
+extern int cmd_tar_tree(int argc, const char **argv, char **envp);
 
 #endif
diff --git a/git.c b/git.c
index 8574775418..c253e60953 100644
--- a/git.c
+++ b/git.c
@@ -54,7 +54,8 @@ static void handle_internal_command(int argc, const char **argv, char **envp)
 		{ "init-db", cmd_init_db },
 		{ "check-ref-format", cmd_check_ref_format },
 		{ "ls-files", cmd_ls_files },
-		{ "ls-tree", cmd_ls_tree }
+		{ "ls-tree", cmd_ls_tree },
+		{ "tar-tree", cmd_tar_tree }
 	};
 	int i;
 

From d147e501f37a596e73a430ce46f125f83e06aa07 Mon Sep 17 00:00:00 2001
From: Peter Eriksen <s022018@student.dtu.dk>
Date: Tue, 23 May 2006 14:15:32 +0200
Subject: [PATCH 5/9] Builtin git-read-tree.

Signed-off-by: Peter Eriksen <s022018@student.dtu.dk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
---
 Makefile                           | 6 +++---
 read-tree.c => builtin-read-tree.c | 3 ++-
 builtin.h                          | 1 +
 git.c                              | 3 ++-
 4 files changed, 8 insertions(+), 5 deletions(-)
 rename read-tree.c => builtin-read-tree.c (99%)

diff --git a/Makefile b/Makefile
index a3164f8ef0..1aebcf5978 100644
--- a/Makefile
+++ b/Makefile
@@ -157,7 +157,7 @@ PROGRAMS = \
 	git-hash-object$X git-index-pack$X git-local-fetch$X \
 	git-mailinfo$X git-merge-base$X \
 	git-merge-index$X git-mktag$X git-mktree$X git-pack-objects$X git-patch-id$X \
-	git-peek-remote$X git-prune-packed$X git-read-tree$X \
+	git-peek-remote$X git-prune-packed$X \
 	git-receive-pack$X git-rev-parse$X \
 	git-send-pack$X git-show-branch$X git-shell$X \
 	git-show-index$X git-ssh-fetch$X \
@@ -172,7 +172,7 @@ 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-tar-tree$X
+	git-tar-tree$X git-read-tree$X
 
 # what 'all' will build and 'install' will install, in gitexecdir
 ALL_PROGRAMS = $(PROGRAMS) $(SIMPLE_PROGRAMS) $(SCRIPTS)
@@ -222,7 +222,7 @@ 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-tar-tree.o
+        builtin-tar-tree.o builtin-read-tree.o
 
 GITLIBS = $(LIB_FILE) $(XDIFF_LIB)
 LIBS = $(GITLIBS) -lz
diff --git a/read-tree.c b/builtin-read-tree.c
similarity index 99%
rename from read-tree.c
rename to builtin-read-tree.c
index 82e2a9a4d3..ec40d013c4 100644
--- a/read-tree.c
+++ b/builtin-read-tree.c
@@ -11,6 +11,7 @@
 #include "tree.h"
 #include <sys/time.h>
 #include <signal.h>
+#include "builtin.h"
 
 static int reset = 0;
 static int merge = 0;
@@ -763,7 +764,7 @@ static const char read_tree_usage[] = "git-read-tree (<sha> | -m [--aggressive]
 
 static struct cache_file cache_file;
 
-int main(int argc, char **argv)
+int cmd_read_tree(int argc, const char **argv, char **envp)
 {
 	int i, newfd, stage = 0;
 	unsigned char sha1[20];
diff --git a/builtin.h b/builtin.h
index d210543948..88b3523c25 100644
--- a/builtin.h
+++ b/builtin.h
@@ -30,5 +30,6 @@ extern int cmd_init_db(int argc, const char **argv, char **envp);
 extern int cmd_ls_files(int argc, const char **argv, char **envp);
 extern int cmd_ls_tree(int argc, const char **argv, char **envp);
 extern int cmd_tar_tree(int argc, const char **argv, char **envp);
+extern int cmd_read_tree(int argc, const char **argv, char **envp);
 
 #endif
diff --git a/git.c b/git.c
index c253e60953..300e2b269c 100644
--- a/git.c
+++ b/git.c
@@ -55,7 +55,8 @@ static void handle_internal_command(int argc, const char **argv, char **envp)
 		{ "check-ref-format", cmd_check_ref_format },
 		{ "ls-files", cmd_ls_files },
 		{ "ls-tree", cmd_ls_tree },
-		{ "tar-tree", cmd_tar_tree }
+		{ "tar-tree", cmd_tar_tree },
+		{ "read-tree", cmd_read_tree }
 	};
 	int i;
 

From 6d96ac18e52aca19ff1087ffa64e2d616cc75c6f Mon Sep 17 00:00:00 2001
From: Peter Eriksen <s022018@student.dtu.dk>
Date: Tue, 23 May 2006 14:15:33 +0200
Subject: [PATCH 6/9] Builtin git-commit-tree.

Signed-off-by: Peter Eriksen <s022018@student.dtu.dk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
---
 Makefile                               | 6 +++---
 commit-tree.c => builtin-commit-tree.c | 5 +++--
 builtin.h                              | 1 +
 git.c                                  | 3 ++-
 4 files changed, 9 insertions(+), 6 deletions(-)
 rename commit-tree.c => builtin-commit-tree.c (96%)

diff --git a/Makefile b/Makefile
index 1aebcf5978..a1bee61e57 100644
--- a/Makefile
+++ b/Makefile
@@ -150,7 +150,7 @@ SIMPLE_PROGRAMS = \
 # ... and all the rest that could be moved out of bindir to gitexecdir
 PROGRAMS = \
 	git-apply$X git-cat-file$X \
-	git-checkout-index$X git-clone-pack$X git-commit-tree$X \
+	git-checkout-index$X git-clone-pack$X \
 	git-convert-objects$X git-diff-files$X \
 	git-diff-index$X git-diff-stages$X \
 	git-diff-tree$X git-fetch-pack$X git-fsck-objects$X \
@@ -172,7 +172,7 @@ 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-tar-tree$X git-read-tree$X
+	git-tar-tree$X git-read-tree$X git-commit-tree$X
 
 # what 'all' will build and 'install' will install, in gitexecdir
 ALL_PROGRAMS = $(PROGRAMS) $(SIMPLE_PROGRAMS) $(SCRIPTS)
@@ -222,7 +222,7 @@ 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-tar-tree.o builtin-read-tree.o
+        builtin-tar-tree.o builtin-read-tree.o builtin-commit-tree.o
 
 GITLIBS = $(LIB_FILE) $(XDIFF_LIB)
 LIBS = $(GITLIBS) -lz
diff --git a/commit-tree.c b/builtin-commit-tree.c
similarity index 96%
rename from commit-tree.c
rename to builtin-commit-tree.c
index 0320036e80..ec082bf754 100644
--- a/commit-tree.c
+++ b/builtin-commit-tree.c
@@ -6,6 +6,7 @@
 #include "cache.h"
 #include "commit.h"
 #include "tree.h"
+#include "builtin.h"
 
 #define BLOCKING (1ul << 14)
 
@@ -76,7 +77,7 @@ static int new_parent(int idx)
 	return 1;
 }
 
-int main(int argc, char **argv)
+int cmd_commit_tree(int argc, const char **argv, char **envp)
 {
 	int i;
 	int parents = 0;
@@ -98,7 +99,7 @@ int main(int argc, char **argv)
 
 	check_valid(tree_sha1, tree_type);
 	for (i = 2; i < argc; i += 2) {
-		char *a, *b;
+		const char *a, *b;
 		a = argv[i]; b = argv[i+1];
 		if (!b || strcmp(a, "-p"))
 			usage(commit_tree_usage);
diff --git a/builtin.h b/builtin.h
index 88b3523c25..c6b07d9a65 100644
--- a/builtin.h
+++ b/builtin.h
@@ -31,5 +31,6 @@ extern int cmd_ls_files(int argc, const char **argv, char **envp);
 extern int cmd_ls_tree(int argc, const char **argv, char **envp);
 extern int cmd_tar_tree(int argc, const char **argv, char **envp);
 extern int cmd_read_tree(int argc, const char **argv, char **envp);
+extern int cmd_commit_tree(int argc, const char **argv, char **envp);
 
 #endif
diff --git a/git.c b/git.c
index 300e2b269c..4c2c062e36 100644
--- a/git.c
+++ b/git.c
@@ -56,7 +56,8 @@ static void handle_internal_command(int argc, const char **argv, char **envp)
 		{ "ls-files", cmd_ls_files },
 		{ "ls-tree", cmd_ls_tree },
 		{ "tar-tree", cmd_tar_tree },
-		{ "read-tree", cmd_read_tree }
+		{ "read-tree", cmd_read_tree },
+		{ "commit-tree", cmd_commit_tree }
 	};
 	int i;
 

From ac6245e31a359200b65bfdd910bba9a0fbe90c11 Mon Sep 17 00:00:00 2001
From: Peter Eriksen <s022018@student.dtu.dk>
Date: Tue, 23 May 2006 14:15:34 +0200
Subject: [PATCH 7/9] Builtin git-apply.

Signed-off-by: Peter Eriksen <s022018@student.dtu.dk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
---
 Makefile                   | 8 +++++---
 apply.c => builtin-apply.c | 3 ++-
 builtin.h                  | 1 +
 git.c                      | 3 ++-
 4 files changed, 10 insertions(+), 5 deletions(-)
 rename apply.c => builtin-apply.c (99%)

diff --git a/Makefile b/Makefile
index a1bee61e57..3da576838f 100644
--- a/Makefile
+++ b/Makefile
@@ -149,7 +149,7 @@ SIMPLE_PROGRAMS = \
 
 # ... and all the rest that could be moved out of bindir to gitexecdir
 PROGRAMS = \
-	git-apply$X git-cat-file$X \
+	git-cat-file$X \
 	git-checkout-index$X git-clone-pack$X \
 	git-convert-objects$X git-diff-files$X \
 	git-diff-index$X git-diff-stages$X \
@@ -172,7 +172,8 @@ BUILT_INS = git-log$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$X \
-	git-tar-tree$X git-read-tree$X git-commit-tree$X
+	git-tar-tree$X git-read-tree$X git-commit-tree$X \
+	git-apply$X
 
 # what 'all' will build and 'install' will install, in gitexecdir
 ALL_PROGRAMS = $(PROGRAMS) $(SIMPLE_PROGRAMS) $(SCRIPTS)
@@ -222,7 +223,8 @@ 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-tar-tree.o builtin-read-tree.o builtin-commit-tree.o
+        builtin-tar-tree.o builtin-read-tree.o builtin-commit-tree.o \
+	builtin-apply.o
 
 GITLIBS = $(LIB_FILE) $(XDIFF_LIB)
 LIBS = $(GITLIBS) -lz
diff --git a/apply.c b/builtin-apply.c
similarity index 99%
rename from apply.c
rename to builtin-apply.c
index 0ed9d132e8..4056b9d67b 100644
--- a/apply.c
+++ b/builtin-apply.c
@@ -11,6 +11,7 @@
 #include "quote.h"
 #include "blob.h"
 #include "delta.h"
+#include "builtin.h"
 
 //  --check turns on checking that the working tree matches the
 //    files that are being modified, but doesn't apply the patch
@@ -2151,7 +2152,7 @@ static int git_apply_config(const char *var, const char *value)
 }
 
 
-int main(int argc, char **argv)
+int cmd_apply(int argc, const char **argv, char **envp)
 {
 	int i;
 	int read_stdin = 1;
diff --git a/builtin.h b/builtin.h
index c6b07d9a65..d6ff88ebc1 100644
--- a/builtin.h
+++ b/builtin.h
@@ -32,5 +32,6 @@ extern int cmd_ls_tree(int argc, const char **argv, char **envp);
 extern int cmd_tar_tree(int argc, const char **argv, char **envp);
 extern int cmd_read_tree(int argc, const char **argv, char **envp);
 extern int cmd_commit_tree(int argc, const char **argv, char **envp);
+extern int cmd_apply(int argc, const char **argv, char **envp);
 
 #endif
diff --git a/git.c b/git.c
index 4c2c062e36..f44e08b9ce 100644
--- a/git.c
+++ b/git.c
@@ -57,7 +57,8 @@ static void handle_internal_command(int argc, const char **argv, char **envp)
 		{ "ls-tree", cmd_ls_tree },
 		{ "tar-tree", cmd_tar_tree },
 		{ "read-tree", cmd_read_tree },
-		{ "commit-tree", cmd_commit_tree }
+		{ "commit-tree", cmd_commit_tree },
+		{ "apply", cmd_apply }
 	};
 	int i;
 

From 51ce34b9923d9b119ac53414584f80e05520abea Mon Sep 17 00:00:00 2001
From: Peter Eriksen <s022018@student.dtu.dk>
Date: Tue, 23 May 2006 14:15:35 +0200
Subject: [PATCH 8/9] Builtin git-show-branch.

Signed-off-by: Peter Eriksen <s022018@student.dtu.dk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
---
 Makefile                               | 6 +++---
 show-branch.c => builtin-show-branch.c | 7 ++++---
 builtin.h                              | 1 +
 git.c                                  | 3 ++-
 4 files changed, 10 insertions(+), 7 deletions(-)
 rename show-branch.c => builtin-show-branch.c (99%)

diff --git a/Makefile b/Makefile
index 3da576838f..69377e37b4 100644
--- a/Makefile
+++ b/Makefile
@@ -159,7 +159,7 @@ PROGRAMS = \
 	git-merge-index$X git-mktag$X git-mktree$X git-pack-objects$X git-patch-id$X \
 	git-peek-remote$X git-prune-packed$X \
 	git-receive-pack$X git-rev-parse$X \
-	git-send-pack$X git-show-branch$X git-shell$X \
+	git-send-pack$X git-shell$X \
 	git-show-index$X git-ssh-fetch$X \
 	git-ssh-upload$X git-unpack-file$X \
 	git-unpack-objects$X git-update-index$X git-update-server-info$X \
@@ -173,7 +173,7 @@ BUILT_INS = git-log$X git-whatchanged$X git-show$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-tar-tree$X git-read-tree$X git-commit-tree$X \
-	git-apply$X
+	git-apply$X git-show-branch$X
 
 # what 'all' will build and 'install' will install, in gitexecdir
 ALL_PROGRAMS = $(PROGRAMS) $(SIMPLE_PROGRAMS) $(SCRIPTS)
@@ -224,7 +224,7 @@ BUILTIN_OBJS = \
 	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-tar-tree.o builtin-read-tree.o builtin-commit-tree.o \
-	builtin-apply.o
+	builtin-apply.o builtin-show-branch.o
 
 GITLIBS = $(LIB_FILE) $(XDIFF_LIB)
 LIBS = $(GITLIBS) -lz
diff --git a/show-branch.c b/builtin-show-branch.c
similarity index 99%
rename from show-branch.c
rename to builtin-show-branch.c
index 268c57b180..3af24e767b 100644
--- a/show-branch.c
+++ b/builtin-show-branch.c
@@ -3,13 +3,14 @@
 #include "cache.h"
 #include "commit.h"
 #include "refs.h"
+#include "builtin.h"
 
 static const char show_branch_usage[] =
 "git-show-branch [--dense] [--current] [--all] [--heads] [--tags] [--topo-order] [--more=count | --list | --independent | --merge-base ] [--topics] [<refs>...]";
 
 static int default_num = 0;
 static int default_alloc = 0;
-static char **default_arg = NULL;
+static const char **default_arg = NULL;
 
 #define UNINTERESTING	01
 
@@ -548,7 +549,7 @@ static int omit_in_dense(struct commit *commit, struct commit **rev, int n)
 	return 0;
 }
 
-int main(int ac, char **av)
+int cmd_show_branch(int ac, const char **av, char **envp)
 {
 	struct commit *rev[MAX_REVS], *commit;
 	struct commit_list *list = NULL, *seen = NULL;
@@ -581,7 +582,7 @@ int main(int ac, char **av)
 	}
 
 	while (1 < ac && av[1][0] == '-') {
-		char *arg = av[1];
+		const char *arg = av[1];
 		if (!strcmp(arg, "--")) {
 			ac--; av++;
 			break;
diff --git a/builtin.h b/builtin.h
index d6ff88ebc1..01882ec93d 100644
--- a/builtin.h
+++ b/builtin.h
@@ -33,5 +33,6 @@ extern int cmd_tar_tree(int argc, const char **argv, char **envp);
 extern int cmd_read_tree(int argc, const char **argv, char **envp);
 extern int cmd_commit_tree(int argc, const char **argv, char **envp);
 extern int cmd_apply(int argc, const char **argv, char **envp);
+extern int cmd_show_branch(int argc, const char **argv, char **envp);
 
 #endif
diff --git a/git.c b/git.c
index f44e08b9ce..d29505c4c9 100644
--- a/git.c
+++ b/git.c
@@ -58,7 +58,8 @@ static void handle_internal_command(int argc, const char **argv, char **envp)
 		{ "tar-tree", cmd_tar_tree },
 		{ "read-tree", cmd_read_tree },
 		{ "commit-tree", cmd_commit_tree },
-		{ "apply", cmd_apply }
+		{ "apply", cmd_apply },
+		{ "show-branch", cmd_show_branch }
 	};
 	int i;
 

From e8cc9cd98e2ecd7fd8bb03e725d470405c8e2b94 Mon Sep 17 00:00:00 2001
From: Peter Eriksen <s022018@student.dtu.dk>
Date: Tue, 23 May 2006 14:15:36 +0200
Subject: [PATCH 9/9] Builtin git-diff-files, git-diff-index, git-diff-stages,
 and git-diff-tree.

Signed-off-by: Peter Eriksen <s022018@student.dtu.dk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
---
 Makefile                               | 12 ++++++------
 diff-files.c => builtin-diff-files.c   |  3 ++-
 diff-index.c => builtin-diff-index.c   |  3 ++-
 diff-stages.c => builtin-diff-stages.c |  3 ++-
 diff-tree.c => builtin-diff-tree.c     |  3 ++-
 builtin.h                              |  5 +++++
 git.c                                  |  6 +++++-
 7 files changed, 24 insertions(+), 11 deletions(-)
 rename diff-files.c => builtin-diff-files.c (94%)
 rename diff-index.c => builtin-diff-index.c (91%)
 rename diff-stages.c => builtin-diff-stages.c (96%)
 rename diff-tree.c => builtin-diff-tree.c (97%)

diff --git a/Makefile b/Makefile
index 69377e37b4..fc5f98b908 100644
--- a/Makefile
+++ b/Makefile
@@ -151,9 +151,7 @@ SIMPLE_PROGRAMS = \
 PROGRAMS = \
 	git-cat-file$X \
 	git-checkout-index$X git-clone-pack$X \
-	git-convert-objects$X git-diff-files$X \
-	git-diff-index$X git-diff-stages$X \
-	git-diff-tree$X git-fetch-pack$X git-fsck-objects$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-mailinfo$X git-merge-base$X \
 	git-merge-index$X git-mktag$X git-mktree$X git-pack-objects$X git-patch-id$X \
@@ -173,7 +171,8 @@ BUILT_INS = git-log$X git-whatchanged$X git-show$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-tar-tree$X git-read-tree$X git-commit-tree$X \
-	git-apply$X git-show-branch$X
+	git-apply$X git-show-branch$X git-diff-files$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)
@@ -223,8 +222,9 @@ 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-tar-tree.o builtin-read-tree.o builtin-commit-tree.o \
-	builtin-apply.o builtin-show-branch.o
+	builtin-tar-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
 
 GITLIBS = $(LIB_FILE) $(XDIFF_LIB)
 LIBS = $(GITLIBS) -lz
diff --git a/diff-files.c b/builtin-diff-files.c
similarity index 94%
rename from diff-files.c
rename to builtin-diff-files.c
index b9d193d506..cebda828ee 100644
--- a/diff-files.c
+++ b/builtin-diff-files.c
@@ -7,12 +7,13 @@
 #include "diff.h"
 #include "commit.h"
 #include "revision.h"
+#include "builtin.h"
 
 static const char diff_files_usage[] =
 "git-diff-files [-q] [-0/-1/2/3 |-c|--cc] [<common diff options>] [<path>...]"
 COMMON_DIFF_OPTIONS_HELP;
 
-int main(int argc, const char **argv)
+int cmd_diff_files(int argc, const char **argv, char **envp)
 {
 	struct rev_info rev;
 	int silent = 0;
diff --git a/diff-index.c b/builtin-diff-index.c
similarity index 91%
rename from diff-index.c
rename to builtin-diff-index.c
index 8c9f60173b..1958580d82 100644
--- a/diff-index.c
+++ b/builtin-diff-index.c
@@ -2,13 +2,14 @@
 #include "diff.h"
 #include "commit.h"
 #include "revision.h"
+#include "builtin.h"
 
 static const char diff_cache_usage[] =
 "git-diff-index [-m] [--cached] "
 "[<common diff options>] <tree-ish> [<path>...]"
 COMMON_DIFF_OPTIONS_HELP;
 
-int main(int argc, const char **argv)
+int cmd_diff_index(int argc, const char **argv, char **envp)
 {
 	struct rev_info rev;
 	int cached = 0;
diff --git a/diff-stages.c b/builtin-diff-stages.c
similarity index 96%
rename from diff-stages.c
rename to builtin-diff-stages.c
index dcd20e79e4..7c157ca889 100644
--- a/diff-stages.c
+++ b/builtin-diff-stages.c
@@ -4,6 +4,7 @@
 
 #include "cache.h"
 #include "diff.h"
+#include "builtin.h"
 
 static struct diff_options diff_options;
 
@@ -54,7 +55,7 @@ static void diff_stages(int stage1, int stage2, const char **pathspec)
 	}
 }
 
-int main(int ac, const char **av)
+int cmd_diff_stages(int ac, const char **av, char **envp)
 {
 	int stage1, stage2;
 	const char *prefix = setup_git_directory();
diff --git a/diff-tree.c b/builtin-diff-tree.c
similarity index 97%
rename from diff-tree.c
rename to builtin-diff-tree.c
index 69bb74b310..cc53b81ac4 100644
--- a/diff-tree.c
+++ b/builtin-diff-tree.c
@@ -2,6 +2,7 @@
 #include "diff.h"
 #include "commit.h"
 #include "log-tree.h"
+#include "builtin.h"
 
 static struct rev_info log_tree_opt;
 
@@ -58,7 +59,7 @@ static const char diff_tree_usage[] =
 "  --root        include the initial commit as diff against /dev/null\n"
 COMMON_DIFF_OPTIONS_HELP;
 
-int main(int argc, const char **argv)
+int cmd_diff_tree(int argc, const char **argv, char **envp)
 {
 	int nr_sha1;
 	char line[1000];
diff --git a/builtin.h b/builtin.h
index 01882ec93d..7620984624 100644
--- a/builtin.h
+++ b/builtin.h
@@ -34,5 +34,10 @@ extern int cmd_read_tree(int argc, const char **argv, char **envp);
 extern int cmd_commit_tree(int argc, const char **argv, char **envp);
 extern int cmd_apply(int argc, const char **argv, char **envp);
 extern int cmd_show_branch(int argc, const char **argv, char **envp);
+extern int cmd_diff_files(int argc, const char **argv, char **envp);
+extern int cmd_diff_index(int argc, const char **argv, char **envp);
+extern int cmd_diff_stages(int argc, const char **argv, char **envp);
+extern int cmd_diff_tree(int argc, const char **argv, char **envp);
+
 
 #endif
diff --git a/git.c b/git.c
index d29505c4c9..874974874b 100644
--- a/git.c
+++ b/git.c
@@ -59,7 +59,11 @@ static void handle_internal_command(int argc, const char **argv, char **envp)
 		{ "read-tree", cmd_read_tree },
 		{ "commit-tree", cmd_commit_tree },
 		{ "apply", cmd_apply },
-		{ "show-branch", cmd_show_branch }
+		{ "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;