The git_connect function is growing long. Split the portion that
discovers an ssh command and options it accepts before the service
name and path to a separate function to make it easier to read.
No functional change intended.
Signed-off-by: Jonathan Nieder <jrnieder@xxxxxxxxx>
---
connect.c | 116 +++++++++++++++++++++++++++++++++-----------------------------
1 file changed, 61 insertions(+), 55 deletions(-)
diff --git a/connect.c b/connect.c
index 068e70caad..77ab6db3bb 100644
--- a/connect.c
+++ b/connect.c
@@ -908,6 +908,65 @@ static struct child_process *git_connect_git(int fd[2], char *hostandport,
return conn;
}
+/* Prepare a child_process for use by Git's SSH-tunneled transport. */
+static void fill_ssh_args(struct child_process *conn, const char *ssh_host,
+ const char *port, int flags)
+{
+ const char *ssh;
+ enum ssh_variant variant;
+
+ if (looks_like_command_line_option(ssh_host))
+ die("strange hostname '%s' blocked", ssh_host);
+
+ ssh = get_ssh_command();
+ if (ssh) {
+ variant = determine_ssh_variant(ssh, 1);
+ } else {
+ /*
+ * GIT_SSH is the no-shell version of
+ * GIT_SSH_COMMAND (and must remain so for
+ * historical compatibility).
+ */
+ conn->use_shell = 0;
+
+ ssh = getenv("GIT_SSH");
+ if (!ssh)
+ ssh = "ssh";
+ variant = determine_ssh_variant(ssh, 0);
+ }
+
+ argv_array_push(&conn->args, ssh);
+
+ if (variant == VARIANT_SSH &&
+ get_protocol_version_config() > 0) {
+ argv_array_push(&conn->args, "-o");
+ argv_array_push(&conn->args, "SendEnv=" GIT_PROTOCOL_ENVIRONMENT);
+ argv_array_pushf(&conn->env_array, GIT_PROTOCOL_ENVIRONMENT "=version=%d",
+ get_protocol_version_config());
+ }
+
+ if (variant != VARIANT_SIMPLE) {
+ if (flags & CONNECT_IPV4)
+ argv_array_push(&conn->args, "-4");
+ else if (flags & CONNECT_IPV6)
+ argv_array_push(&conn->args, "-6");
+ }
+
+ if (variant == VARIANT_TORTOISEPLINK)
+ argv_array_push(&conn->args, "-batch");
+
+ if (port && variant != VARIANT_SIMPLE) {
+ if (variant == VARIANT_SSH)
+ argv_array_push(&conn->args, "-p");
+ else
+ argv_array_push(&conn->args, "-P");
+
+ argv_array_push(&conn->args, port);
+ }
+
+ argv_array_push(&conn->args, ssh_host);
+}
+
/*
* This returns a dummy child_process if the transport protocol does not
* need fork(2), or a struct child_process object if it does. Once done,
@@ -961,16 +1020,13 @@ struct child_process *git_connect(int fd[2], const char *url,
conn->use_shell = 1;
conn->in = conn->out = -1;
if (protocol == PROTO_SSH) {
- const char *ssh;
- enum ssh_variant variant;
char *ssh_host = hostandport;
const char *port = NULL;
+
transport_check_allowed("ssh");
get_host_and_port(&ssh_host, &port);
-
if (!port)
port = get_port(ssh_host);
-
if (flags & CONNECT_DIAG_URL) {
printf("Diag: url=%s\n", url ? url : "NULL");
printf("Diag: protocol=%s\n", prot_name(protocol));
@@ -984,57 +1040,7 @@ struct child_process *git_connect(int fd[2], const char *url,
strbuf_release(&cmd);
return NULL;
}
-
- if (looks_like_command_line_option(ssh_host))
- die("strange hostname '%s' blocked", ssh_host);
-
- ssh = get_ssh_command();
- if (ssh) {
- variant = determine_ssh_variant(ssh, 1);
- } else {
- /*
- * GIT_SSH is the no-shell version of
- * GIT_SSH_COMMAND (and must remain so for
- * historical compatibility).
- */
- conn->use_shell = 0;
-
- ssh = getenv("GIT_SSH");
- if (!ssh)
- ssh = "ssh";
- variant = determine_ssh_variant(ssh, 0);
- }
-
- argv_array_push(&conn->args, ssh);
-
- if (variant == VARIANT_SSH &&
- get_protocol_version_config() > 0) {
- argv_array_push(&conn->args, "-o");
- argv_array_push(&conn->args, "SendEnv=" GIT_PROTOCOL_ENVIRONMENT);
- argv_array_pushf(&conn->env_array, GIT_PROTOCOL_ENVIRONMENT "=version=%d",
- get_protocol_version_config());
- }
-
- if (variant != VARIANT_SIMPLE) {
- if (flags & CONNECT_IPV4)
- argv_array_push(&conn->args, "-4");
- else if (flags & CONNECT_IPV6)
- argv_array_push(&conn->args, "-6");
- }
-
- if (variant == VARIANT_TORTOISEPLINK)
- argv_array_push(&conn->args, "-batch");
-
- if (port && variant != VARIANT_SIMPLE) {
- if (variant == VARIANT_SSH)
- argv_array_push(&conn->args, "-p");
- else
- argv_array_push(&conn->args, "-P");
-
- argv_array_push(&conn->args, port);
- }
-
- argv_array_push(&conn->args, ssh_host);
+ fill_ssh_args(conn, ssh_host, port, flags);
} else {
transport_check_allowed("file");
if (get_protocol_version_config() > 0) {
--
2.15.0.rc1.287.g2b38de12cc
