feat(cli.rs): add active toolchain and rustup to tauri info, closes #2730 (#2986)

.changes/cli.rs-active-toolchain.md

@@ -0,0 +1,5 @@
+---
+"cli.rs": patch
+---
+
+Add `rustup` version and active rust toolchain to the `info` command output.

tooling/cli.rs/src/info.rs

@@ -328,6 +328,32 @@ fn build_tools_version() -> crate::Result<Option<Vec<String>>> {
   Ok(versions)
 }
 
+fn get_active_rust_toolchain() -> crate::Result<Option<String>> {
+  let mut cmd;
+  #[cfg(target_os = "windows")]
+  {
+    cmd = Command::new("cmd");
+    cmd.arg("/c").arg("rustup");
+  }
+
+  #[cfg(not(target_os = "windows"))]
+  {
+    cmd = Command::new("rustup")
+  }
+
+  let output = cmd.args(["show", "active-toolchain"]).output()?;
+  let toolchain = if output.status.success() {
+    Some(
+      String::from_utf8_lossy(&output.stdout)
+        .replace("\n", "")
+        .replace("\r", ""),
+    )
+  } else {
+    None
+  };
+  Ok(toolchain)
+}
+
 struct InfoBlock {
   section: bool,
   key: &'static str,
@@ -513,6 +539,15 @@ impl Info {
     }
 
     InfoBlock::new("Rust environment").section().display();
+    VersionBlock::new(
+      "  rustup",
+      get_version("rustup", &[]).unwrap_or_default().map(|v| {
+        let mut s = v.split(' ');
+        s.next();
+        s.next().unwrap().to_string()
+      }),
+    )
+    .display();
     VersionBlock::new(
       "  rustc",
       get_version("rustc", &[]).unwrap_or_default().map(|v| {
@@ -531,6 +566,11 @@ impl Info {
       }),
     )
     .display();
+    VersionBlock::new(
+      "  toolchain",
+      get_active_rust_toolchain().unwrap_or_default(),
+    )
+    .display();
 
     if let Some(app_dir) = app_dir {
       InfoBlock::new("App directory structure")