feat(subcmd/clean): add --keep-installed

src/subcommand/clean.rs

@@ -20,6 +20,9 @@ pub struct Clean {
     /// Keep downloadable and installed packages
     #[arg(long, conflicts_with = "keep_downloadable")]
     keep_downloadable_and_installed: bool,
+    /// Keep installed packages
+    #[arg(long, conflicts_with = "keep_downloadable_and_installed")]
+    keep_installed: bool,
     /// Set sysroot target directory
     #[arg(from_global)]
     sysroot: PathBuf,
@@ -39,6 +42,7 @@ impl CliExecuter for Clean {
             dry_run,
             keep_downloadable,
             keep_downloadable_and_installed,
+            keep_installed,
         } = self;
 
         if dry_run {
@@ -106,7 +110,9 @@ impl CliExecuter for Clean {
                 continue;
             }
 
-            if !version.is_downloadable() && keep_downloadable {
+            if (!version.is_downloadable() && keep_downloadable)
+                || (!version.is_installed() && keep_installed)
+            {
                 remove_deb(&i);
                 continue;
             }