[PATCH 4/4] "git init --remote=host:path"

[Junio C Hamano <gitster@pobox.com>]

This implements the requesting side of the pair.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 builtin-init-db.c |   44 ++++++++++++++++++++++++++++++++++++++++++++
 t/t0001-init.sh   |   12 ++++++++++++
 2 files changed, 56 insertions(+), 0 deletions(-)

diff --git a/builtin-init-db.c b/builtin-init-db.c
index 9628803..18754d7 100644
--- a/builtin-init-db.c
+++ b/builtin-init-db.c
@@ -6,6 +6,7 @@
 #include "cache.h"
 #include "builtin.h"
 #include "exec_cmd.h"
+#include "pkt-line.h"
 
 #ifndef DEFAULT_GIT_TEMPLATE_DIR
 #define DEFAULT_GIT_TEMPLATE_DIR "/usr/share/git-core/templates"
@@ -363,6 +364,37 @@ static int guess_repository_type(const char *git_dir)
 	return 1;
 }
 
+static int remote_init(const char *remote, const char *init_serve,
+		       int argc, const char **argv)
+{
+	struct child_process *child;
+	int fd[2], i, len, status;
+	char line[1000];
+
+	if (!init_serve)
+		init_serve = "git init-serve";
+	child = git_connect(fd, remote, init_serve, 0);
+	for (i = 1; i < argc; i++) {
+		const char *arg = argv[i];
+		if (!prefixcmp(arg, "--remote=") ||
+		    !prefixcmp(arg, "--exec="))
+			continue;
+		packet_write(fd[1], "arg %s\n", argv[i]);
+	}
+	packet_flush(fd[1]);
+
+	status = 0;
+	len = packet_read_line(fd[0], line, sizeof(line));
+	if (len < 3 ||
+	    (memcmp(line, "ok ", 3) && memcmp(line, "ng ", 3)))
+		die("protocol error: %s\n", line);
+
+	if (line[0] != 'o')
+		status = error("%s", line);
+	status |= finish_connect(child);
+	return status;
+}
+
 static const char init_db_usage[] =
 "git init [-q | --quiet] [--bare] [--template=<template-directory>] [--shared[=<permissions>]]";
 
@@ -378,6 +410,8 @@ int cmd_init_db(int argc, const char **argv, const char *prefix)
 	const char *template_dir = NULL;
 	unsigned int flags = 0;
 	const char *shared_given = NULL;
+	const char *remote_given = NULL;
+	const char *exec_given = NULL;
 	int bare_given = 0;
 	int i;
 
@@ -394,10 +428,20 @@ int cmd_init_db(int argc, const char **argv, const char *prefix)
 			shared_given = arg + 9;
 		else if (!strcmp(arg, "-q") || !strcmp(arg, "--quiet"))
 			flags |= INIT_DB_QUIET;
+		else if (!prefixcmp(arg, "--remote="))
+			remote_given = arg + 9;
+		else if (!prefixcmp(arg, "--exec="))
+			exec_given = arg + 7;
 		else
 			usage(init_db_usage);
 	}
 
+	if (remote_given || exec_given) {
+		if (!remote_given)
+			die("--exec= without --remote=?");
+		return remote_init(remote_given, exec_given, argc, argv);
+	}
+
 	if (bare_given) {
 		static char git_dir[PATH_MAX+1];
 		is_bare_repository_cfg = 1;
diff --git a/t/t0001-init.sh b/t/t0001-init.sh
index 5ac0a27..6f47930 100755
--- a/t/t0001-init.sh
+++ b/t/t0001-init.sh
@@ -199,4 +199,16 @@ test_expect_success 'init honors global core.sharedRepository' '
 	x`git config -f shared-honor-global/.git/config core.sharedRepository`
 '
 
+test_expect_success 'init --remote' '
+	R="$(pwd)/test-of-remote" &&
+	test_must_fail git init --remote="$R" --bare --template=frotz &&
+	git init --remote="$R" --bare &&
+	test -d "$R/objects/pack" &&
+	test_must_fail git init --remote="$R" &&
+	rm -fr "$R" &&
+	test_must_fail git init --remote="$R" --exec="false is not git" &&
+	git init --remote="$R" --exec="$TEST_DIRECTORY/../git-init-serve" &&
+	test -d "$R/.git/objects/pack"
+'
+
 test_done
-- 
1.6.2.rc2.99.g9f3bb