Run etc-update (fix #72)

README.md

@@ -27,11 +27,12 @@ distribution which ships the latest version of Rust, such as Arch Linux.
 ## Usage
 Just run `topgrade`. It will run the following steps:
 
-* Run the system package manager:
+* *Linux*: Run the system package manager:
   * *Arch*: Run [yay](https://github.com/Jguer/yay) or fall back to pacman
   * *CentOS/RHEL*: Run `yum upgrade`
   * *Fedora* - Run `dnf upgrade`
   * *Debian/Ubuntu*: Run `apt update && apt dist-upgrade`
+* *Linux*: Run [etc-update](https://dev.gentoo.org/~zmedico/portage/doc/man/etc-update.1.html):
 * *Unix*: Run `brew update && brew upgrade`. This should handle both Homebrew and Linuxbrew
 * *Windows*: Upgrade Powershell modules
 * *Windows*: Upgrade all [Chocolatey](https://chocolatey.org/) packages

src/linux.rs

@@ -263,3 +263,26 @@ pub fn run_snap(sudo: &Option<PathBuf>, terminal: &mut Terminal, dry_run: bool)
 
     None
 }
+
+#[must_use]
+pub fn run_etc_update(sudo: &Option<PathBuf>, terminal: &mut Terminal, dry_run: bool) -> Option<(&'static str, bool)> {
+    if let Some(sudo) = sudo {
+        if let Some(etc_update) = which("etc-update") {
+            terminal.print_separator("etc-update");
+
+            let success = || -> Result<(), failure::Error> {
+                Executor::new(&sudo, dry_run)
+                    .arg(&etc_update.to_str().unwrap())
+                    .spawn()?
+                    .wait()?
+                    .check()?;
+
+                Ok(())
+            }().is_ok();
+
+            return Some(("snap", success));
+        }
+    }
+
+    None
+}

src/main.rs

@@ -126,6 +126,10 @@ fn run() -> Result<(), Error> {
                     println!("Error detecting current distribution: {}", e);
                 }
             }
+            report.push_result(execute(
+                |terminal| linux::run_etc_update(&sudo, terminal, opt.dry_run),
+                &mut terminal,
+            ));
         }
     }