feat: Make key password optional

lib/signing.js

@@ -45,15 +45,18 @@ function signApkFile(apkFile, signingKeyFile, alias, keyStorePassword, keyPasswo
         core.debug(`Found 'apksigner' @ ${apkSigner}`);
         // apksigner sign --ks my-release-key.jks --out my-app-release.apk my-app-unsigned-aligned.apk
         const signedApkFile = apkFile.replace('.apk', '-signed.apk');
-        yield exec.exec(`"${apkSigner}"`, [
+        const args = [
             'sign',
             '--ks', signingKeyFile,
             '--ks-key-alias', alias,
             '--ks-pass', `pass:${keyStorePassword}`,
-            '--key-pass', `pass:${keyPassword}`,
-            '--out', signedApkFile,
-            alignedApkFile
-        ]);
+            '--out', signedApkFile
+        ];
+        if (keyPassword) {
+            args.push('--key-pass', `pass:${keyPassword}`);
+        }
+        args.push(alignedApkFile);
+        yield exec.exec(`"${apkSigner}"`, args);
         // Verify
         core.debug("Verifying Signed APK");
         yield exec.exec(`"${apkSigner}"`, [
@@ -69,13 +72,15 @@ function signAabFile(aabFile, signingKeyFile, alias, keyStorePassword, keyPasswo
         core.debug("Signing AAB file");
         const jarSignerPath = yield io.which('jarsigner', true);
         core.debug(`Found 'jarsigner' @ ${jarSignerPath}`);
-        yield exec.exec(`"${jarSignerPath}"`, [
+        const args = [
             '-keystore', signingKeyFile,
             '-storepass', keyStorePassword,
-            '-keypass', keyPassword,
-            aabFile,
-            alias
-        ]);
+        ];
+        if (keyPassword) {
+            args.push('-keypass', keyPassword);
+        }
+        args.push(aabFile, alias);
+        yield exec.exec(`"${jarSignerPath}"`, args);
         return aabFile;
     });
 }