add version option to install binaries

src/sdk.rs

@@ -65,6 +65,9 @@ pub enum Sdk {
 		/// Force platform to install binaries for
 		#[clap(long, short)]
 		platform: Option<String>,
+		/// Specify version to install
+		#[clap(long, short)]
+		version: Option<String>,
 	},
 
 	/// Uninstall SDK
@@ -427,14 +430,25 @@ fn switch_to_tag(config: &mut Config, repo: &Repository) {
 	done!("Updated head to v{}", latest_version.unwrap());
 }
 
-fn install_binaries(config: &mut Config, platform: Option<String>) {
+fn install_binaries(config: &mut Config, platform: Option<String>, version: Option<String>) {
 	let release_tag: String;
 	let target_dir: PathBuf;
 	if config.sdk_nightly {
 		info!("Installing nightly binaries");
 		release_tag = "nightly".into();
 		target_dir = Config::sdk_path().join("bin/nightly");
-	} else {
+	}
+	else if version.is_some() {
+		let ver = Version::parse(version.as_deref().unwrap())
+			.nice_unwrap("Invalid version specified");
+		info!("Installing binaries for {}", ver);
+
+		release_tag = format!("v{}", ver);
+		let mut stripped_ver = ver.clone();
+		stripped_ver.pre = Prerelease::EMPTY;
+		target_dir = Config::sdk_path().join(format!("bin/{}", stripped_ver));
+	} 
+	else {
 		let ver = get_version();
 		info!("Installing binaries for {}", ver);
 		release_tag = format!("v{}", ver);
@@ -638,6 +652,6 @@ pub fn subcommand(config: &mut Config, cmd: Sdk) {
 		Sdk::SetPath { path, r#move } => set_sdk_path(path, r#move),
 		Sdk::Update { branch } => update(config, branch),
 		Sdk::Version => info!("Geode SDK version: {}", get_version()),
-		Sdk::InstallBinaries { platform } => install_binaries(config, platform),
+		Sdk::InstallBinaries { platform, version } => install_binaries(config, platform, version),
 	}
 }