✨ self-update supports for upgrading to specific version

src/cli.rs

@@ -79,6 +79,9 @@ pub enum Commands {
         /// Automatic yes to prompts
         #[arg(short = 'y', long)]
         yes: bool,
+
+        /// The target version to update to
+        version: Option<String>,
     },
 
     /// Manage the Smart-DNS service (install, uninstall, start, stop, restart).

src/dns_client.rs

@@ -317,7 +317,7 @@ impl DnsClient {
     }
 
     pub async fn get_server_group(&self, name: &str) -> Option<Arc<NameServerGroup>> {
-        if name == "" || name.eq_ignore_ascii_case("default") {
+        if name.is_empty() || name.eq_ignore_ascii_case("default") {
             return Some(self.default.clone());
         }
         self.servers.get(name).cloned()

src/main.rs

@@ -42,7 +42,7 @@ mod server;
 mod service;
 mod third_ext;
 #[cfg(feature = "self-update")]
-mod update;
+mod updater;
 
 use error::Error;
 use infra::middleware;
@@ -169,9 +169,8 @@ impl Cli {
                 RuntimeConfig::load(conf);
             }
             #[cfg(feature = "self-update")]
-            Commands::Update { yes } => {
-                use update::update;
-                update(yes).unwrap();
+            Commands::Update { yes, version } => {
+                updater::update(yes, version.as_deref()).unwrap();
             }
         }
     }

src/update.rs → src/updater.rs

@@ -1,20 +1,26 @@
 #[cfg(feature = "self-update")]
-pub fn update(assume_yes: bool) -> anyhow::Result<()> {
+pub fn update(assume_yes: bool, ver: Option<&str>) -> anyhow::Result<()> {
     let bin = env!("CARGO_BIN_NAME");
     let target = env!("CARGO_BUILD_TARGET");
     let target_dir = format!("{bin}-{target}");
 
-    let status = self_update::backends::github::Update::configure()
+    let mut builder = self_update::backends::github::Update::configure();
+
+    builder
         .repo_owner("mokeyish")
         .repo_name(&[bin, "-rs"].concat())
         .identifier(target)
         .bin_name(bin)
         .bin_path_in_archive(&format!("{}/{}", target_dir, "{{bin}}"))
         .show_download_progress(true)
         .no_confirm(assume_yes)
-        .current_version(self_update::cargo_crate_version!())
-        .build()?
-        .update()?;
+        .current_version(self_update::cargo_crate_version!());
+
+    if let Some(ver) = ver {
+        builder.target_version_tag(ver);
+    }
+
+    let status = builder.build()?.update()?;
 
     println!("Update status: `{}`!", status.version());
     Ok(())