Support SSH aliases in Dosh client installs

README.md

@@ -92,37 +92,36 @@ dosh-client
 Default UDP port: `50000`. This is intentionally inside the common forwarded range
 `50000-52000/udp`.
 
-Put this repo on your Gitea server, then install on each Linux server you want to
-attach to:
+Install on each Linux server you want to attach to:
 
 ```bash
-curl -fsSL https://gitea.example.com/you/dosh/raw/branch/main/install.sh \
-  | DOSH_REPO=https://gitea.example.com/you/dosh.git DOSH_PORT=50000 sh -s -- server
+curl -fsSL https://git.palav.dev/Palav/dosh/raw/branch/main/install.sh \
+  | DOSH_REPO=https://git.palav.dev/Palav/dosh.git DOSH_PORT=50000 sh -s -- server
 ```
 
 Install the client on macOS:
 
 ```bash
-curl -fsSL https://gitea.example.com/you/dosh/raw/branch/main/install.sh \
-  | DOSH_REPO=https://gitea.example.com/you/dosh.git DOSH_SERVER=user@host DOSH_PORT=50000 sh -s -- client
+curl -fsSL https://git.palav.dev/Palav/dosh/raw/branch/main/install.sh \
+  | DOSH_REPO=https://git.palav.dev/Palav/dosh.git DOSH_SERVER=palav DOSH_HOST=git.palav.dev DOSH_PORT=50000 sh -s -- client
 ```
 
 Install the client on Windows PowerShell:
 
 ```powershell
-$env:DOSH_REPO="https://gitea.example.com/you/dosh.git"; $env:DOSH_SERVER="user@host"; $env:DOSH_PORT="50000"; irm https://gitea.example.com/you/dosh/raw/branch/main/install.ps1 | iex
+$env:DOSH_REPO="https://git.palav.dev/Palav/dosh.git"; $env:DOSH_SERVER="palav"; $env:DOSH_HOST="git.palav.dev"; $env:DOSH_PORT="50000"; irm https://git.palav.dev/Palav/dosh/raw/branch/main/install.ps1 | iex
 ```
 
 Attach:
 
 ```bash
-dosh-client user@host
+dosh palav
 ```
 
 Use named sessions:
 
 ```bash
-dosh-client --session work user@host
+dosh --session work palav
 ```
 
 Press `Ctrl-]` to detach the current client while leaving the server session alive.

SPEC.md

@@ -454,7 +454,7 @@ Client config: `~/.config/dosh/client.toml`
 
 ```toml
 server = "user@example.com"
-ssh_port = 22
+# ssh_port = 22
 dosh_port = 50000
 default_session = "default"
 reconnect_timeout_secs = 5

install.ps1

@@ -51,7 +51,7 @@ try {
         @"
 server = "$defaultServer"
 $doshHostLine
-ssh_port = 22
+# ssh_port = 22
 dosh_port = $Port
 default_session = "default"
 reconnect_timeout_secs = 5

install.sh

@@ -183,7 +183,7 @@ if [ "$role" = "client" ] || [ "$role" = "both" ]; then
     cat >"$client_config" <<EOF
 server = "$default_server"
 $dosh_host_line
-ssh_port = 22
+# ssh_port = 22
 dosh_port = $port
 default_session = "default"
 reconnect_timeout_secs = 5

src/bin/dosh-client.rs

@@ -80,7 +80,7 @@ async fn main() -> Result<()> {
         "read-write"
     }
     .to_string();
-    let ssh_port = args.ssh_port.unwrap_or(config.ssh_port);
+    let ssh_port = args.ssh_port.or(config.ssh_port);
     let dosh_port = args.dosh_port.unwrap_or(config.dosh_port);
     let cache_path = cache_path(&config.credential_cache, &server, &session, &mode);
     let (cols, rows) = size().unwrap_or((80, 24));
@@ -232,7 +232,7 @@ fn local_bootstrap(
 
 fn ssh_bootstrap(
     server: &str,
-    ssh_port: u16,
+    ssh_port: Option<u16>,
     ssh_auth_command: &str,
     ssh_key: Option<&std::path::Path>,
     ssh_known_hosts: Option<&std::path::Path>,
@@ -246,7 +246,10 @@ fn ssh_bootstrap(
     let nonce_b64 = URL_SAFE_NO_PAD.encode(nonce);
     let size = format!("{cols}x{rows}");
     let mut command = Command::new("ssh");
-    command.arg("-p").arg(ssh_port.to_string()).arg("-T");
+    if let Some(ssh_port) = ssh_port {
+        command.arg("-p").arg(ssh_port.to_string());
+    }
+    command.arg("-T");
     if let Some(key) = ssh_key {
         command.arg("-i").arg(key);
     }

src/config.rs

@@ -46,7 +46,7 @@ impl Default for ServerConfig {
 pub struct ClientConfig {
     pub server: String,
     pub dosh_host: Option<String>,
-    pub ssh_port: u16,
+    pub ssh_port: Option<u16>,
     pub dosh_port: u16,
     pub default_session: String,
     pub reconnect_timeout_secs: u64,
@@ -60,7 +60,7 @@ impl Default for ClientConfig {
         Self {
             server: "user@example.com".to_string(),
             dosh_host: None,
-            ssh_port: 22,
+            ssh_port: None,
             dosh_port: 50000,
             default_session: "default".to_string(),
             reconnect_timeout_secs: 5,