feat(updater): add no_proxy config to disable system proxy

Add a `no_proxy` configuration option to the updater plugin that calls reqwest's `no_proxy()` method. This allows users to prevent update requests from being affected by system proxy settings.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: miaoshengkun

.changes/add-plugin-no-proxy.md

@@ -0,0 +1,6 @@
+---
+"updater": minor
+"updater-js": minor
+---
+
+Add no_proxy config to disable system proxy for updater plugin. 

plugins/updater/src/updater.rs

@@ -146,6 +146,7 @@ pub struct UpdaterBuilder {
     headers: HeaderMap,
     timeout: Option<Duration>,
     proxy: Option<Url>,
+    no_proxy: bool,
     installer_args: Vec<OsString>,
     current_exe_args: Vec<OsString>,
     on_before_exit: Option<OnBeforeExit>,
@@ -174,6 +175,7 @@ impl UpdaterBuilder {
             headers: Default::default(),
             timeout: None,
             proxy: None,
+            no_proxy: false,
             on_before_exit: None,
             configure_client: None,
         }
@@ -242,6 +244,11 @@ impl UpdaterBuilder {
         self
     }
 
+    pub fn no_proxy(mut self) -> Self {
+        self.no_proxy = true;
+        self
+    }
+
     pub fn pubkey<S: Into<String>>(mut self, pubkey: S) -> Self {
         self.config.pubkey = pubkey.into();
         self
@@ -315,6 +322,7 @@ impl UpdaterBuilder {
             version_comparator: self.version_comparator,
             timeout: self.timeout,
             proxy: self.proxy,
+            no_proxy: self.no_proxy,
             endpoints,
             installer_args: self.installer_args,
             current_exe_args: self.current_exe_args,
@@ -349,6 +357,7 @@ pub struct Updater {
     version_comparator: Option<VersionComparator>,
     timeout: Option<Duration>,
     proxy: Option<Url>,
+    no_proxy: bool,
     endpoints: Vec<Url>,
     arch: &'static str,
     // The `{{target}}` variable we replace in the endpoint and serach for in the JSON,
@@ -428,7 +437,10 @@ impl Updater {
             if let Some(timeout) = self.timeout {
                 request = request.timeout(timeout);
             }
-            if let Some(ref proxy) = self.proxy {
+            if self.no_proxy {
+                log::debug!("disabling proxy");
+                request = request.no_proxy();
+            } else if let Some(ref proxy) = self.proxy {
                 log::debug!("using proxy {proxy}");
                 let proxy = reqwest::Proxy::all(proxy.as_str())?;
                 request = request.proxy(proxy);
@@ -519,6 +531,7 @@ impl Updater {
                 raw_json: raw_json.unwrap(),
                 timeout: None,
                 proxy: self.proxy.clone(),
+                no_proxy: self.no_proxy,
                 headers: self.headers.clone(),
                 installer_args: self.installer_args.clone(),
                 current_exe_args: self.current_exe_args.clone(),
@@ -592,6 +605,8 @@ pub struct Update {
     pub timeout: Option<Duration>,
     /// Request proxy
     pub proxy: Option<Url>,
+    /// Disable system proxy
+    pub no_proxy: bool,
     /// Request headers
     pub headers: HeaderMap,
     /// Extract path
@@ -628,7 +643,9 @@ impl Update {
         if let Some(timeout) = self.timeout {
             request = request.timeout(timeout);
         }
-        if let Some(ref proxy) = self.proxy {
+        if self.no_proxy {
+            request = request.no_proxy();
+        } else if let Some(ref proxy) = self.proxy {
             let proxy = reqwest::Proxy::all(proxy.as_str())?;
             request = request.proxy(proxy);
         }