support listening on Unix sockets

tests/integrations/check_config.rs

@@ -111,3 +111,9 @@ make_snapshot_test!(
     "A config with the database path inside the media path fails",
     "database-in-media.toml",
 );
+
+make_snapshot_test!(
+    unix_socket,
+    "A config listening to a Unix socket is valid",
+    "unix-socket.toml",
+);

tests/integrations/fixtures/check_config/unix-socket.toml

@@ -0,0 +1,14 @@
+server_name = "example.com"
+listen = [{ type = "unix", path = "/tmp/grapevine.sock" }]
+
+[server_discovery]
+client.base_url = "https://matrix.example.com"
+
+[database]
+backend = "rocksdb"
+path = "tests/integrations/fixtures/check_config/dirs/a"
+
+[media.backend]
+type = "filesystem"
+path = "tests/integrations/fixtures/check_config/dirs/b"
+

tests/integrations/snapshots/integrations__check_config__unix_socket@status_code.snap

@@ -0,0 +1,7 @@
+---
+source: tests/integrations/check_config.rs
+description: A config listening to a Unix socket is valid
+---
+Some(
+    0,
+)

tests/integrations/snapshots/integrations__check_config__unix_socket@stderr.snap

@@ -0,0 +1,14 @@
+---
+source: tests/integrations/check_config.rs
+description: A config listening to a Unix socket is valid
+---
+[
+  {
+    "fields": {
+      "message": "Configuration looks good"
+    },
+    "level": "INFO",
+    "target": "grapevine::cli::check_config",
+    "timestamp": "[timestamp]"
+  }
+]

tests/integrations/snapshots/integrations__check_config__unix_socket@stdout.snap

@@ -0,0 +1,5 @@
+---
+source: tests/integrations/check_config.rs
+description: A config listening to a Unix socket is valid
+---
+