Introduce min-wrapper-count input

Signed-off-by: Paul Merlin <paul@gradle.com>

__tests__/validate.test.ts

@@ -4,6 +4,7 @@ import * as validate from '../src/validate'
 test('validates wrapper jars', async () => {
   const invalidWrapperJars = await validate.findInvalidWrapperJars(
     path.resolve('.'),
+    2,
     false,
     []
   )
@@ -15,3 +16,12 @@ test('validates wrapper jars', async () => {
     )
   )
 })
+
+test('fails if not enough wrapper jars are found', async () => {
+  await expect(validate.findInvalidWrapperJars(
+    path.resolve('.'),
+    3,
+    false,
+    []
+  )).rejects.toThrowError('Expected at least 3 but got only 2')
+})

action.yml

@@ -2,6 +2,10 @@ name: 'Gradle Wrapper Validation'
 description: 'Validates Gradle Wrapper JAR Files'
 author: 'Gradle'
 inputs:
+  min-wrapper-count:
+    description: 'Minimum expected wrapper JAR files'
+    required: false
+    default: '1'
   allow-snapshots:
     description: 'Allow snapshot Gradle versions'
     required: false

dist/index.js

@@ -340,9 +340,10 @@ const validate = __importStar(__webpack_require__(474));
 function run() {
     return __awaiter(this, void 0, void 0, function* () {
         try {
+            const minWrapperCount = +core.getInput('min-wrapper-count');
             const allowSnapshots = core.getInput('allow-snapshots') === 'true';
             const allowChecksums = core.getInput('allow-checksums').split(',');
-            const invalidWrapperJars = yield validate.findInvalidWrapperJars(path.resolve('.'), allowSnapshots, allowChecksums);
+            const invalidWrapperJars = yield validate.findInvalidWrapperJars(path.resolve('.'), minWrapperCount, allowSnapshots, allowChecksums);
             if (invalidWrapperJars.length > 0) {
                 const list = invalidWrapperJars.map(invalid => `${invalid.checksum} ${invalid.path}`);
                 core.setFailed(`Found unknown Gradle Wrapper JAR files\n${list.join('\n- ')}`);
@@ -944,9 +945,12 @@ Object.defineProperty(exports, "__esModule", { value: true });
 const find = __importStar(__webpack_require__(625));
 const checksums = __importStar(__webpack_require__(762));
 const hash = __importStar(__webpack_require__(652));
-function findInvalidWrapperJars(gitRepoRoot, allowSnapshots, allowChecksums) {
+function findInvalidWrapperJars(gitRepoRoot, minWrapperCount, allowSnapshots, allowChecksums) {
     return __awaiter(this, void 0, void 0, function* () {
         const wrapperJars = yield find.findWrapperJars(gitRepoRoot);
+        if (wrapperJars.length < minWrapperCount) {
+            throw new Error(`Expected at least ${minWrapperCount} but got only ${wrapperJars.length}`);
+        }
         if (wrapperJars.length > 0) {
             const validChecksums = yield checksums.fetchValidChecksums(allowSnapshots);
             validChecksums.push(...allowChecksums);

src/main.ts

@@ -5,10 +5,12 @@ import * as validate from './validate'
 
 export async function run(): Promise<void> {
   try {
+    const minWrapperCount = +core.getInput('min-wrapper-count')
     const allowSnapshots = core.getInput('allow-snapshots') === 'true'
     const allowChecksums = core.getInput('allow-checksums').split(',')
     const invalidWrapperJars = await validate.findInvalidWrapperJars(
       path.resolve('.'),
+      minWrapperCount,
       allowSnapshots,
       allowChecksums
     )

src/validate.ts

@@ -4,10 +4,20 @@ import * as hash from './hash'
 
 export async function findInvalidWrapperJars(
   gitRepoRoot: string,
+  minWrapperCount: number,
   allowSnapshots: boolean,
   allowChecksums: string[]
 ): Promise<InvalidWrapperJar[]> {
   const wrapperJars = await find.findWrapperJars(gitRepoRoot)
+  // eslint-disable-next-line no-console
+  console.log(
+    `Expected at least ${minWrapperCount} but got only ${wrapperJars.length}`
+  )
+  if (wrapperJars.length < minWrapperCount) {
+    throw new Error(
+      `Expected at least ${minWrapperCount} but got only ${wrapperJars.length}`
+    )
+  }
   if (wrapperJars.length > 0) {
     const validChecksums = await checksums.fetchValidChecksums(allowSnapshots)
     validChecksums.push(...allowChecksums)