Make networking commands to work from a subdirectory.

These are whole-tree operations and there is not much point
making them operable from within a subdirectory, but it is easy
to do so, and using setup_git_directory() upfront helps git://
proxy specification picked up from the correct place.

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

clone-pack.c

@@ -271,6 +271,8 @@ int main(int argc, char **argv)
 	int fd[2];
 	pid_t pid;
 
+	setup_git_directory();
+
 	nr_heads = 0;
 	heads = NULL;
 	for (i = 1; i < argc; i++) {

fetch-pack.c

@@ -424,6 +424,8 @@ int main(int argc, char **argv)
 	int fd[2];
 	pid_t pid;
 
+	setup_git_directory();
+
 	nr_heads = 0;
 	heads = NULL;
 	for (i = 1; i < argc; i++) {

http-fetch.c

@@ -922,6 +922,8 @@ int main(int argc, char **argv)
 	int arg = 1;
 	int rc = 0;
 
+	setup_git_directory();
+
 	while (arg < argc && argv[arg][0] == '-') {
 		if (argv[arg][1] == 't') {
 			get_tree = 1;

http-push.c

@@ -1239,6 +1239,7 @@ int main(int argc, char **argv)
 	int rc = 0;
 	int i;
 
+	setup_git_directory();
 	setup_ident();
 
 	remote = xmalloc(sizeof(*remote));

local-fetch.c

@@ -207,6 +207,8 @@ int main(int argc, char **argv)
 	char *commit_id;
 	int arg = 1;
 
+	setup_git_directory();
+
 	while (arg < argc && argv[arg][0] == '-') {
 		if (argv[arg][1] == 't')
 			get_tree = 1;

send-pack.c

@@ -273,6 +273,7 @@ int main(int argc, char **argv)
 	int fd[2], ret;
 	pid_t pid;
 
+	setup_git_directory();
 	argv++;
 	for (i = 1; i < argc; i++, argv++) {
 		char *arg = *argv;

ssh-fetch.c

@@ -131,6 +131,8 @@ int main(int argc, char **argv)
 	prog = getenv("GIT_SSH_PUSH");
 	if (!prog) prog = "git-ssh-upload";
 
+	setup_git_directory();
+
 	while (arg < argc && argv[arg][0] == '-') {
 		if (argv[arg][1] == 't') {
 			get_tree = 1;

ssh-upload.c

@@ -121,6 +121,9 @@ int main(int argc, char **argv)
 
 	prog = getenv(COUNTERPART_ENV_NAME);
 	if (!prog) prog = COUNTERPART_PROGRAM_NAME;
+
+	setup_git_directory();
+
 	while (arg < argc && argv[arg][0] == '-') {
 		if (argv[arg][1] == 'w')
 			arg++;