feat(check): warn about old Aura config files

rust/aura-pm/i18n/en-US/aura_pm.ftl

@@ -155,7 +155,7 @@ check-aconf-aura-exists = Aura config file exists?
 check-aconf-aura-exists-fix = Fix: Consider { $cmd }
 check-aconf-aura-parse = Aura config file can be parsed?
 check-aconf-old-dirs = No old Aura directories exist?
-check-aconf-old-dirs-fix = You can delete { $old } in favour of { $new }.
+check-aconf-old-conf = No old Aura config files exist?
 check-mconf = Makepkg Configuration (/etc/makepkg.conf)
 check-mconf-packager = PACKAGER set?
 check-mconf-packager-fix = Set { $cmd } within /etc/makepkg.conf
@@ -247,6 +247,7 @@ common-no-packages = No packages specified.
 common-no-valid = No valid packages specified.
 common-no-work = Nothing to do.
 common-cancelled = Action cancelled.
+common-replace = You can delete { $old } in favour of { $new }.
 
 # Misc.
 proceed = Proceed?

rust/aura-pm/src/command/check.rs

@@ -169,18 +169,44 @@ fn aura_config(fll: &FluentLanguageLoader) {
     aura!(fll, "check-aconf");
     parsable_aura_toml(fll);
     old_aura_dirs(fll);
+    old_aura_conf(fll);
 }
 
 fn old_aura_dirs(fll: &FluentLanguageLoader) {
     let good = Path::new("/var/cache/aura").is_dir().not();
     let symbol = if good { GOOD.green() } else { WARN.yellow() };
     println!("  [{}] {}", symbol, fl!(fll, "check-aconf-old-dirs"));
 
-    if let Ok(cache) = crate::dirs::aura_xdg_cache() {
-        let old = "/var/cache/aura".bold().yellow().to_string();
-        let new = cache.display().to_string().bold().cyan().to_string();
-        let msg = fl!(fll, "check-aconf-old-dirs-fix", old = old, new = new);
-        println!("      └─ {}", msg);
+    if !good {
+        if let Ok(cache) = crate::dirs::aura_xdg_cache() {
+            let old = "/var/cache/aura".bold().yellow().to_string();
+            let new = cache.display().to_string().bold().cyan().to_string();
+            let msg = fl!(fll, "common-replace", old = old, new = new);
+            println!("      └─ {}", msg);
+        }
+    }
+}
+
+fn old_aura_conf(fll: &FluentLanguageLoader) {
+    if let Ok(xdg) = crate::dirs::xdg_config() {
+        let user = xdg.join("aura").join("aura.conf");
+        let files = [Path::new("/etc/aura.conf"), &user];
+        let exists: Vec<_> = files.into_iter().filter(|p| p.is_file()).collect();
+        let good = exists.is_empty();
+        let symbol = if good { GOOD.green() } else { WARN.yellow() };
+        println!("  [{}] {}", symbol, fl!(fll, "check-aconf-old-conf"));
+
+        if let Ok(aura) = crate::dirs::aura_config() {
+            let new = aura.display().to_string().bold().cyan().to_string();
+
+            let len = exists.len();
+            for (i, file) in exists.into_iter().enumerate() {
+                let old = file.display().to_string().bold().yellow().to_string();
+                let msg = fl!(fll, "common-replace", old = old, new = new.as_str());
+                let arrow = if i + 1 == len { "└─" } else { "├─" };
+                println!("      {} {}", arrow, msg);
+            }
+        }
     }
 }
 

rust/aura-pm/src/dirs.rs

@@ -36,7 +36,7 @@ impl Localised for Error {
 }
 
 /// Like [`xdg_cache`], but for `XDG_CONFIG_HOME`.
-fn xdg_config() -> Result<PathBuf, Error> {
+pub(crate) fn xdg_config() -> Result<PathBuf, Error> {
     std::env::var("XDG_CONFIG_HOME")
         .map(PathBuf::from)
         .or_else(|_| std::env::var("HOME").map(|h| [&h, ".config"].iter().collect()))