Add new step pacdiff (#796)

src/config.rs

@@ -96,6 +96,7 @@ pub enum Step {
     Nix,
     Node,
     Opam,
+    Pacdiff,
     Pacstall,
     Pearl,
     Pipx,

src/main.rs

@@ -138,6 +138,8 @@ fn run() -> Result<()> {
             linux::run_etc_update(sudo.as_ref(), run_type)
         })?;
 
+        runner.execute(Step::Pacdiff, "pacdiff", || linux::run_pacdiff(sudo.as_ref(), run_type))?;
+
         runner.execute(Step::BrewFormula, "Brew", || {
             unix::run_brew_formula(&ctx, unix::BrewVariant::Linux)
         })?;

src/steps/os/linux.rs

@@ -503,6 +503,15 @@ pub fn run_etc_update(sudo: Option<&PathBuf>, run_type: RunType) -> Result<()> {
     run_type.execute(sudo).arg(etc_update).check_run()
 }
 
+pub fn run_pacdiff(sudo: Option<&PathBuf>, run_type: RunType) -> Result<()> {
+    let sudo = require_option(sudo, String::from("sudo is not installed"))?;
+    let pacdiff = require("pacdiff")?;
+
+    print_separator("pacdiff");
+
+    run_type.execute(sudo).arg(pacdiff).check_run()
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;