Add a key for running remote topgrades

README.md

@@ -154,3 +154,8 @@ The configuration should be placed in the following paths depending by the opera
 * **macOS** - `~/Library/Preferences/topgrade.toml`
 * **Windows** - `%APPDATA%/topgrade.toml`
 * **Other Unix systems** - `~/.config/topgrade.toml`
+
+## Remote execution
+You can specify a key called `remote_topgrades` in the configuration file. This key should contain a
+list of hostnames that have topgrade installed on them. Topgrade will execute Topgrades on these
+remote hosts.

src/config.rs

@@ -69,6 +69,7 @@ pub struct ConfigFile {
     commands: Option<Commands>,
     git_repos: Option<Vec<String>>,
     disable: Option<Vec<Step>>,
+    remote_topgrades: Option<Vec<String>>,
 }
 
 impl ConfigFile {
@@ -198,4 +199,9 @@ impl Config {
     pub fn verbose(&self) -> bool {
         self.opt.verbose
     }
+
+    /// List of remote hosts to run Topgrade in
+    pub fn remote_topgrades(&self) -> &Option<Vec<String>> {
+        &self.config_file.remote_topgrades
+    }
 }

src/main.rs

@@ -1,5 +1,4 @@
 #![allow(clippy::cognitive_complexity)]
-
 mod config;
 mod ctrlc;
 mod error;
@@ -132,6 +131,17 @@ fn run() -> Result<(), Error> {
     #[cfg(windows)]
     execute(&mut report, "WSL", || windows::run_wsl_topgrade(run_type), true)?;
 
+    if let Some(topgrades) = config.remote_topgrades() {
+        for remote_topgrade in topgrades {
+            execute(
+                &mut report,
+                remote_topgrade,
+                || generic::run_remote_topgrade(run_type, remote_topgrade),
+                config.no_retry(),
+            )?;
+        }
+    }
+
     #[cfg(target_os = "linux")]
     let distribution = linux::Distribution::detect();
 

src/steps/generic.rs

@@ -136,3 +136,18 @@ pub fn run_composer_update(base_dirs: &BaseDirs, run_type: RunType) -> Result<()
 
     Ok(())
 }
+
+pub fn run_remote_topgrade(run_type: RunType, hostname: &str) -> Result<(), Error> {
+    let ssh = utils::require("ssh")?;
+
+    run_type
+        .execute(&ssh)
+        .args(&[
+            "-t",
+            hostname,
+            "env",
+            &format!("TOPGRADE_PREFIX={}", hostname),
+            "topgrade",
+        ])
+        .check_run()
+}

src/steps/os/windows.rs

@@ -89,8 +89,6 @@ pub fn run_wsl_topgrade(run_type: RunType) -> Result<(), Error> {
         .check_output()
         .map_err(|_| ErrorKind::SkipStep)?;
 
-    print_separator("WSL");
-
     run_type
         .execute(&wsl)
         .args(&["bash", "-c"])