env, ci: add better CI diagnosis via is_manageable/0 for when sdkmanager is broken

.github/workflows/matrix_ci.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-20.04]
+        os: [ubuntu-24.04]
         java-version: [11,15,20]
         android-api: [31, 33]
       fail-fast: false
@@ -55,7 +55,20 @@ jobs:
     - name: Run vab --help
       run: vab --help
 
-    - name: Run vab doctor
+    - name: Run 'vab doctor' before install
+      run: vab doctor
+
+      # It is a Sisyphus task to get all combinations of the pre-installed SDK / tools and Java working
+      # so we simply remove the system install and use our own minimal base-setup via 'vab install auto'...
+    - name: Setup predictable Android environment
+      run: |
+        sudo rm -fr /usr/local/lib/android # location of pre-installed SDK on Ubuntu
+        unset ANDROID_SDK_ROOT # These are set in the CI by default
+        unset ANDROID_HOME
+        unset ANDROID_NDK_ROOT
+        vab install auto
+
+    - name: Run 'vab doctor' after install
       run: vab doctor
 
     - name: Run tests
@@ -70,12 +83,11 @@ jobs:
     - name: Run vab install build-tools
       run: vab install "build-tools;29.0.0"
 
-    - name: Run vab doctor2
+    - name: Run 'vab doctor' after build-tools install
       run: vab doctor
 
     - name: Build examples as APK + AAB (Java ${{ matrix.java-version }}) ${{ matrix.android-api }}
       run: |
-
         declare -a v_examples=('flappylearning' '2048' 'fireworks' 'tetris' 'sokol/particles' 'sokol/drawing.v' 'sokol/freetype_raven.v' 'gg/polygons.v' 'gg/raven_text_rendering.v' 'gg/rectangles.v' 'gg/stars.v' 'gg/worker_thread.v')
 
         for example in "${v_examples[@]}"; do
@@ -101,13 +113,13 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-20.04]
+        os: [ubuntu-24.04]
         java-version: [11, 15, 20]
         android-api: [31, 33]
       fail-fast: false
     timeout-minutes: 20
     env:
-      VAB_FLAGS: -v 3 -gc none --build-tools 29.0.0
+      VAB_FLAGS: -v 3 -gc none
     steps:
     - uses: actions/setup-java@v4
       with:
@@ -166,13 +178,13 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-20.04]
+        os: [ubuntu-24.04]
         java-version: [8] # 9, 10 is in a bad state currently
         android-api: [31, 33]
       fail-fast: false
     timeout-minutes: 20
     env:
-      VAB_FLAGS: -v 3 --build-tools 29.0.0
+      VAB_FLAGS: -v 3
     steps:
     - uses: actions/setup-java@v4
       with:
@@ -208,7 +220,7 @@ jobs:
       run: |
         sudo rm -fr /usr/local/lib/android
 
-    - name: Run 'vab doctor'
+    - name: Run 'vab doctor' before install
       run: vab doctor
 
     - name: Run 'vab install auto'
@@ -218,7 +230,7 @@ jobs:
         unset ANDROID_NDK_ROOT
         vab install auto
 
-    - name: Run vab doctor
+    - name: Run 'vab doctor' after install
       run: vab doctor
 
     - name: Run tests

android/env/env.v

@@ -24,6 +24,7 @@ pub const accepted_components = ['auto', 'cmdline-tools', 'platform-tools', 'ndk
 // build-tools - Version where apksigner is included from
 
 @[deprecated: 'use get_default_components() instead']
+@[deprecated_after: '2027-01-01']
 pub const default_components = {
 	'cmdline-tools':  {
 		'name':          'cmdline-tools'
@@ -154,6 +155,9 @@ pub fn (io &InstallOptions) verbose(verbosity_level int, msg string) {
 	}
 }
 
+// managable returns `true` if the host system's SDK can be managed by `vab`.
+@[deprecated: 'use "is_manageable() or { false }" instead']
+@[deprecated_after: '2027-07-20']
 pub fn managable() bool {
 	sdk_is_writable := os.is_writable(sdk.root())
 	// sdkmanager checks
@@ -199,7 +203,55 @@ pub fn managable() bool {
 	return sdk_is_writable && has_sdkmanager && sdkmanger_works
 }
 
+// is_manageable returns `true` if the host system's SDK can be managed by `vab`, an error with
+// details is returned otherwise.
+pub fn is_manageable() !bool {
+	if !os.is_writable(sdk.root()) {
+		return error('No permission to write in Android SDK root. Please install manually or ensure write access to "${sdk.root()}".')
+	}
+
+	// sdkmanager checks
+	sdkm := sdkmanager()
+	if sdkm == '' {
+		return error('An executable `sdkmanager` seems to be missing.')
+	}
+	// We have detected `sdkmanager` - but does it work with the Java version? *sigh*
+	// Android development will let us find out I guess:
+	cmd := [
+		sdkm,
+		'--list',
+	]
+	mut cmd_res := util.run(cmd)
+	if cmd_res.exit_code > 0 {
+		// Failed let's try a workaround from stackoverflow:
+		// https://stackoverflow.com/a/51644855/1904615
+		if 'windows' == os.user_os() {
+			util.run([
+				'set JAVA_OPTS=-XX:+IgnoreUnrecognizedVMOptions --add-modules java.se.ee',
+			])
+			util.run([
+				'set JAVA_OPTS=-XX:+IgnoreUnrecognizedVMOptions --add-modules java.xml.bind',
+			])
+		} else {
+			util.run([
+				"export JAVA_OPTS='-XX:+IgnoreUnrecognizedVMOptions --add-modules java.se.ee'",
+			])
+			util.run([
+				"export JAVA_OPTS='-XX:+IgnoreUnrecognizedVMOptions --add-modules java.xml.bind'",
+			])
+		}
+		// Let try again
+		cmd_res = util.run(cmd)
+		if cmd_res.exit_code != 0 {
+			return error('The detected `sdkmanager` seems outdated or incompatible with the Java version used. Manual intervention is needed.\nPath: "${sdkmanager()}"\nVersion: ${sdkmanager_version()}\nOutput: ${cmd_res.output}')
+		}
+		// Give up trying to fix this horrible eco-system
+	}
+	return true
+}
+
 @[deprecated: 'use install_components instead']
+@[deprecated_after: '2027-01-01']
 pub fn install(components string, verbosity int) int {
 	mut iopts := []InstallOptions{}
 	mut ensure_sdk := true
@@ -500,16 +552,9 @@ pub fn install_components(arguments []string, verbosity int) ! {
 fn install_opt(opt InstallOptions) !bool {
 	loose := opt.dep == .bundletool || opt.dep == .aapt2
 
-	if !loose && !managable() {
-		if !os.is_writable(sdk.root()) {
-			return error(@MOD + '.' + @FN + ' ' +
-				'No permission to write in Android SDK root. Please install manually or ensure write access to "${sdk.root()}".')
-		} else {
-			return error(@MOD + '.' + @FN + ' ' +
-				'The `sdkmanager` seems outdated or incompatible with the Java version used". Please fix your setup manually.\nPath: "${sdkmanager()}"\nVersion: ${sdkmanager_version()}')
-		}
+	if !loose {
+		is_manageable()!
 	}
-
 	// Accept all SDK licenses
 	$if windows {
 		os.mkdir_all(work_path) or {}

cli/cli.v

@@ -111,6 +111,7 @@ pub fn input_from_args(arguments []string) (string, []string) {
 // args_to_options returns an `Option` merged from (CLI/Shell) `arguments` using `defaults` as
 // values where no value can be obtained from `arguments`.
 @[deprecated: 'use options_from_arguments and run_vab_sub_command instead']
+@[deprecated_after: '2027-01-01']
 pub fn args_to_options(arguments []string, defaults Options) !(Options, &flag.FlagParser) {
 	mut args := arguments.clone()
 

cli/doctor.v

@@ -14,7 +14,16 @@ import vab.android.env
 // diagnosticing the work environment.
 pub fn doctor(opt Options) {
 	sdkm := env.sdkmanager()
-	env_managable := env.managable()
+	env_managable := env.is_manageable() or {
+		util.vab_notice('${err.msg()}',
+			details: 'For `${exe_short_name}` to control it\'s own dependencies, please update `sdkmanager` found in:
+"${sdkm}"
+or use a Java version that is compatible with your `sdkmanager`.
+You can set the `SDKMANAGER` env variable or try your luck with `${exe_short_name} install auto`.
+See https://stackoverflow.com/a/61176718/1904615 for more help.\n'
+		)
+		false
+	}
 	env_vars := os.environ()
 
 	// Validate Android `sdkmanager` tool
@@ -31,23 +40,6 @@ pub fn doctor(opt Options) {
 See https://stackoverflow.com/a/61176718/1904615 for more help.\n'
 		}
 		util.vab_notice('No "sdkmanager" could be detected.', details)
-	} else {
-		if !env_managable {
-			sdk_is_writable := os.is_writable(sdk.root())
-			if !sdk_is_writable {
-				util.vab_notice('The SDK at "${sdk.root()}" is not writable.',
-					details: "`${exe_short_name}` is not able to control the SDK and it's dependencies."
-				)
-			} else {
-				util.vab_notice('The detected `sdkmanager` seems outdated or incompatible with the Java version used.',
-					details: 'For `${exe_short_name}` to control it\'s own dependencies, please update `sdkmanager` found in:
-"${sdkm}"
-or use a Java version that is compatible with your `sdkmanager`.
-You can set the `SDKMANAGER` env variable or try your luck with `${exe_short_name} install auto`.
-See https://stackoverflow.com/a/61176718/1904615 for more help.\n'
-				)
-			}
-		}
 	}
 
 	avdmanager := env.avdmanager()

cli/options.v

@@ -428,6 +428,7 @@ fn (mut o Options) merge_additional_args(default_additional_args []string) {
 // extend_from_dot_vab will merge the `Options` with any content
 // found in any `.vab` config files.
 @[deprecated: 'use options_from_dot_vab instead']
+@[deprecated_after: '2027-01-01']
 pub fn (mut opt Options) extend_from_dot_vab() {
 	// Look up values in input .vab file next to input if no flags or defaults was set
 	dot_vab_file := dot_vab_path(opt.input)

tests/at-runtime/emulator/emulator_test.vv

@@ -26,7 +26,7 @@ const test_v_examples = [
 	'gg/worker_thread.v',
 ]
 
-const env_is_managable = env.managable()
+const env_is_manageable = env.is_manageable() or { false }
 
 const is_ci = os.getenv('CI') != ''
 
@@ -77,7 +77,7 @@ fn ensure_env() {
 	os.unsetenv('ANDROID_SERIAL')
 
 	if !env.has_emulator() {
-		assert env_is_managable == true, 'These tests requires a *writable* SDK'
+		assert env_is_manageable == true, 'These tests requires a *writable* SDK'
 		eprintln('No emulator detected. Installing...')
 		install_emulator_res := run([vab_exe, 'install', 'emulator'])
 		if install_emulator_res.exit_code != 0 {