From 8a3f6af248e28ea7efc1bf89751a597d28834942 Mon Sep 17 00:00:00 2001
From: Simon Ruderich <simon@ruderich.org>
Date: Tue, 18 May 2021 10:10:09 +0200
Subject: [PATCH] rpc: use SSHConfig struct as argument to DialSSH()

In preparation to add more arguments to DialSSH().
---
 cmd/safcm/sync.go |  6 +++++-
 rpc/dial.go       | 18 ++++++++++++------
 2 files changed, 17 insertions(+), 7 deletions(-)

diff --git a/cmd/safcm/sync.go b/cmd/safcm/sync.go
index 6f38daf..6fe65fa 100644
--- a/cmd/safcm/sync.go
+++ b/cmd/safcm/sync.go
@@ -374,7 +374,11 @@ func (s *Sync) Host(wg *sync.WaitGroup) error {
 	if user == "" {
 		user = s.config.SshUser
 	}
-	err := conn.DialSSH(user, s.host.Name, s.config.SshConfig)
+	err := conn.DialSSH(rpc.SSHConfig{
+		Host:      s.host.Name,
+		User:      user,
+		SshConfig: s.config.SshConfig,
+	})
 	if err != nil {
 		return err
 	}
diff --git a/rpc/dial.go b/rpc/dial.go
index caa34b0..c0c6cd4 100644
--- a/rpc/dial.go
+++ b/rpc/dial.go
@@ -32,14 +32,20 @@ import (
 	"ruderich.org/simon/safcm/remote"
 )
 
-func (c *Conn) DialSSH(user, host, sshConfig string) error {
+type SSHConfig struct {
+	Host      string
+	User      string // optional
+	SshConfig string // optional
+}
+
+func (c *Conn) DialSSH(cfg SSHConfig) error {
 	if c.events == nil {
 		return fmt.Errorf("cannot reuse Conn")
 	}
 
-	remote := host
-	if user != "" {
-		remote = user + "@" + host
+	remote := cfg.Host
+	if cfg.User != "" {
+		remote = cfg.User + "@" + cfg.Host
 	}
 	c.debugf("DialSSH: connecting to %q", remote)
 
@@ -50,8 +56,8 @@ func (c *Conn) DialSSH(user, host, sshConfig string) error {
 	}
 
 	c.sshRemote = remote
-	if sshConfig != "" {
-		c.sshOpts = []string{"-F", sshConfig}
+	if cfg.SshConfig != "" {
+		c.sshOpts = []string{"-F", cfg.SshConfig}
 	}
 	c.cmd = exec.Command("ssh",
 		append(append([]string{}, c.sshOpts...),
-- 
2.45.2