registry: add gem backend for bashly

registry.toml

@@ -385,7 +385,7 @@ test = ["bashbot version", "v{{version}}"]
 backends = ["gem:bashly", "asdf:mise-plugins/mise-bashly"]
 depends = ["ruby"]
 description = "Bashly is a command line application (written in Ruby) that lets you generate feature-rich bash command line tools"
-test = ["bashly version", "{{version}}"]
+test = ["bashly --version", "{{version}}"]
 
 [tools.bat]
 backends = [

src/backend/gem.rs

@@ -44,7 +44,10 @@ impl Backend for GemBackend {
         .full_env(&env)
         .read()?;
 
-        parse_gem_versions(&output)
+        let mut versions = parse_gem_versions(&output)?;
+        // gem info returns versions newest-first, but mise expects oldest-first
+        versions.reverse();
+        Ok(versions)
     }
 
     async fn install_version_(&self, ctx: &InstallContext, tv: ToolVersion) -> Result<ToolVersion> {