From 85fad93a71e317ceef5f11623bca40deeaf26240 Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Mon, 6 Jul 2020 17:31:11 +0200
Subject: [PATCH] Add support for upstream Unix socket connections

References: https://todo.sr.ht/~emersion/soju/51
---
 doc/soju.1.scd | 5 +++--
 upstream.go    | 6 ++++++
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/doc/soju.1.scd b/doc/soju.1.scd
index 896bf5d..3e816b7 100644
--- a/doc/soju.1.scd
+++ b/doc/soju.1.scd
@@ -116,8 +116,9 @@ abbreviated form, for instance *network* can be abbreviated as *net* or just
 
 	_addr_ supports several connection types:
 
-	- _[ircs://]host[:port]_ connects with TLS over TCP
-	- _irc+insecure://host[:port]_ connects with plain-text TCP
+	- _[ircs://]<host>[:port]_ connects with TLS over TCP
+	- _irc+insecure://<host>[:port]_ connects with plain-text TCP
+	- _unix:///<path>_ connects to a Unix socket
 
 	Other options are:
 
diff --git a/upstream.go b/upstream.go
index 3eb08e2..e43a045 100644
--- a/upstream.go
+++ b/upstream.go
@@ -142,6 +142,12 @@ func connectToUpstream(network *network) (*upstreamConn, error) {
 		if err != nil {
 			return nil, fmt.Errorf("failed to dial %q: %v", addr, err)
 		}
+	case "unix":
+		logger.Printf("connecting to Unix socket at path %q", u.Path)
+		netConn, err = dialer.Dial("unix", u.Path)
+		if err != nil {
+			return nil, fmt.Errorf("failed to connect to Unix socket %q: %v", u.Path, err)
+		}
 	default:
 		return nil, fmt.Errorf("failed to dial %q: unknown scheme: %v", network.Addr, u.Scheme)
 	}