[android] installed packages list

haxetool/android.js

@@ -61,12 +61,33 @@ class Android extends Sdk {
 
     sdkmanager(packages) {
         this.log.i('sdkmanager: *%s*', packages.join(', '));
+        const installedFile = path.join(this.path, '.installed');
+        const installed = new Set(
+            fs.existsSync(installedFile) ?
+                fs.readFileSync(installedFile, {encoding: 'utf8'}).split('\n') :
+                []
+        );
+        const install = new Set(packages);
+        for (const key of installed) {
+            if (install.has(key)) {
+                install.delete(key);
+            }
+        }
+        if (install.size === 0) {
+            return Promise.resolve();
+        }
         const androidBin = path.join(this.path, 'tools/bin/sdkmanager');
         if (fs.existsSync(androidBin)) {
             fs.chmodSync(androidBin, 0o755);
         }
         const yes = '(while sleep 3; do echo "y"; done)';
-        return exec('.', [yes, '|', androidBin].concat(packages.map(name => `"${name}"`)).join(' '));
+        const command = [yes, '|', androidBin].concat(Array.from(install).map(name => `"${name}"`)).join(' ');
+        return exec('.', command).then(() => {
+            for (const key of install) {
+                installed.add(key);
+            }
+            fs.writeFileSync(installedFile, Array.from(installed).join('\n'), {encoding: 'utf8'});
+        });
     }
 
     activate() {