Changes on PR feedback

- Check rustup on common installation paths and user's $PATH or %PATH%
- fail the build if rustup is not found
- Use NDK LTS r27d

Author: TranceLove

.github/workflows/android-build.yml

@@ -24,7 +24,7 @@ jobs:
       - name: Set up NDK
         uses: nttld/setup-ndk@afb4c9964b521afb97c864b7d40b11e6911bd410
         with:
-          ndk-version: r29
+          ndk-version: r27d
           link-to-sdk: true
           local-cache: true
       - name: Install Rust

.github/workflows/android-debug-artifact-ondemand.yml

@@ -43,7 +43,7 @@ jobs:
       - name: Set up NDK
         uses: nttld/setup-ndk@afb4c9964b521afb97c864b7d40b11e6911bd410
         with:
-          ndk-version: r29
+          ndk-version: r27d
           link-to-sdk: true
           local-cache: true
       - name: Install Rust

.github/workflows/android-debug-artifact-release.yml

@@ -17,7 +17,7 @@ jobs:
       - name: Set up NDK
         uses: nttld/setup-ndk@afb4c9964b521afb97c864b7d40b11e6911bd410
         with:
-          ndk-version: r29
+          ndk-version: r27d
           link-to-sdk: true
           local-cache: true
       - name: Install Rust

.github/workflows/android-feature.yml

@@ -26,7 +26,7 @@ jobs:
         id: setup-ndk
         uses: nttld/setup-ndk@afb4c9964b521afb97c864b7d40b11e6911bd410
         with:
-          ndk-version: r29
+          ndk-version: r27d
           link-to-sdk: true
           local-cache: true
       - name: Check formatting using spotless

.github/workflows/android-main.yml

@@ -25,7 +25,7 @@ jobs:
       - name: Set up NDK
         uses: nttld/setup-ndk@afb4c9964b521afb97c864b7d40b11e6911bd410
         with:
-          ndk-version: r29
+          ndk-version: r27d
           link-to-sdk: true
           local-cache: true
       - name: Check formatting using spotless

gradle/setupRustAndroidLocal.gradle

@@ -7,18 +7,33 @@ tasks.register("setupRustAndroidLocal") {
     }
 
     // Detect existence of rustup.
-    def rustupExists = exec {
-        commandLine("which", "rustup")
-        ignoreExitValue true
-    }.exitValue == 0
+    def rustupExists = {
 
-    if (!rustupExists) {
-        println("rustup not found. Installing rustup...")
-        exec {
-            commandLine("sh", "-c",
-                "curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y -v --default-toolchain none --no-modify-path"
-            )
+        // First check common installation path
+        def isWindows = System.getProperty("os.name").toLowerCase().contains("windows")
+        def home = System.getProperty("user.home")
+        def rustupPath = isWindows
+            ? new File(home, ".cargo/bin/rustup.exe")
+            : new File(home, ".cargo/bin/rustup")
+
+        if (rustupPath.exists() && rustupPath.canExecute()) {
+            return true
         }
+
+        // If not, check on user $PATH/%PATH%
+        try {
+            def process = new ProcessBuilder("rustup")
+                .redirectErrorStream(true)
+                .start()
+            process.waitFor()
+            return process.exitValue() == 0
+        } catch (IOException ignored) {
+            return false
+        }
+    }()
+
+    if (!rustupExists) {
+        throw new GradleException("rustup is not installed or not found in PATH. Please install rustup from https://rustup.rs/ and ensure it is accessible.")
     }
 
     doLast {

gradle/tools.versions.toml

@@ -1,4 +1,4 @@
 [versions]
 compileSdk = "34"
 jvmTarget = "17"
-ndk = "29.0.14206865" #r29
+ndk = "27.3.13750724" #r27d LTS