Draft: Make Wrapper validator self executable and GitLab CI ready

.dockerignore

@@ -0,0 +1,2 @@
+__tests__
+.github

.gitlab-ci.yml

@@ -0,0 +1,8 @@
+
+
+include:
+  - local: WrapperValidation.gitlab-ci.yml
+
+validate-wrapper:
+  variables:
+    MIN_WRAPPER_COUNT: 10

Dockerfile

@@ -0,0 +1,11 @@
+FROM node:12-slim
+
+ENV NODE_ENV=production
+
+WORKDIR /app
+
+COPY . .
+
+RUN npm install && npm run-script build && npm install -g
+
+ENTRYPOINT [ "wrapper-validation" ]

README.md

@@ -104,3 +104,11 @@ Regardless of what you find, we still kindly request that you reach out to us an
 
 To learn more about verifying the Gradle Wrapper JAR locally, see our
 [guide on the topic](https://docs.gradle.org/current/userguide/gradle_wrapper.html#wrapper_checksum_verification).
+
+
+## Usage in GitLab CI
+
+```yaml
+include:
+  - remote: https://raw.githubusercontent.com/gradle/wrapper-validation-action/master/WrapperValidation.gitlab-ci.yml
+```

WrapperValidation.gitlab-ci.yml

@@ -0,0 +1,9 @@
+
+validate-wrapper:
+  stage: .pre
+  image:
+    name: wrapper-validation:latest
+    entrypoint: [""]
+  script:
+    - echo "wrapper-validation --min-wrapper-count=$MIN_WRAPPER_COUNT"
+    - wrapper-validation --min-wrapper-count=$MIN_WRAPPER_COUNT

package.json

@@ -4,6 +4,9 @@
   "private": true,
   "description": "Gradle Wrapper Validation Action",
   "main": "lib/main.js",
+  "bin": {
+    "wrapper-validation": "lib/main.js"
+  },
   "scripts": {
     "build": "tsc",
     "format": "prettier --write **/*.ts",
@@ -26,22 +29,24 @@
   "license": "MIT",
   "dependencies": {
     "@actions/core": "1.4.0",
+    "commander": "^8.2.0",
     "typed-rest-client": "1.8.4",
     "unhomoglyph": "1.0.6"
   },
   "devDependencies": {
-    "@types/node": "12.20.16",
+    "@types/js-yaml": "^4.0.3",
+    "@types/node": "^12.20.33",
     "@typescript-eslint/parser": "4.28.4",
     "@vercel/ncc": "0.29.0",
     "eslint": "7.31.0",
     "eslint-plugin-github": "4.1.5",
     "eslint-plugin-jest": "24.4.0",
+    "glob-parent": ">=5.1.2",
     "jest": "27.0.6",
-    "js-yaml": "4.1.0",
+    "js-yaml": "^4.1.0",
     "nock": "13.1.1",
     "prettier": "2.3.2",
     "ts-jest": "27.0.4",
-    "typescript": "4.0.8",
-    "glob-parent": ">=5.1.2"
+    "typescript": "4.0.8"
   }
 }

src/main.ts

@@ -1,25 +1,71 @@
-import * as path from 'path'
-import * as core from '@actions/core'
+#!/usr/bin/env node
 
-import * as validate from './validate'
+import path from 'path'
+import { promises as fs } from 'fs'
+import { setFailed, getInput, info} from '@actions/core'
+
+import { findInvalidWrapperJars } from './validate'
+import { Command } from 'commander'
+import jsyaml from 'js-yaml'
+
+interface Action {
+  name: string;
+  description: string;
+  author: string;
+  inputs: Map<string, Input>;
+}
+
+interface Input {
+  description: string;
+  required?: boolean;
+  default?: string; 
+}
 
 export async function run(): Promise<void> {
   try {
-    const result = await validate.findInvalidWrapperJars(
+    let minWrapperCount: number
+    let allowSnapshots: string
+    let allowChecksums: string
+
+    if (process.env.GITHUB_ACTION) {
+      minWrapperCount = +getInput('min-wrapper-count')
+      allowSnapshots = getInput('allow-snapshots')
+      allowChecksums = getInput('allow-checksums')
+
+    } else {
+      const program = new Command()
+      const actionYaml = jsyaml.load(await fs.readFile(path.resolve('action.yml'), 'utf8')) as Action
+
+      program
+        .description(actionYaml.description)
+
+      Object.entries(actionYaml.inputs).forEach(([key,value]) => {
+          program.option(`--${key} <value>`, value.description, value.default)
+      })
+
+      program.parse(process.argv)
+      const options = program.opts()
+      minWrapperCount = +options.minWrapperCount
+      allowSnapshots = options.allowSnapshots
+      allowChecksums = options.allowChecksums
+    }
+
+    const result = await findInvalidWrapperJars(
       path.resolve('.'),
-      +core.getInput('min-wrapper-count'),
-      core.getInput('allow-snapshots') === 'true',
-      core.getInput('allow-checksums').split(',')
+      minWrapperCount,
+      allowSnapshots === 'true',
+      allowChecksums.split(',')
     )
     if (result.isValid()) {
-      core.info(result.toDisplayString())
+      info(result.toDisplayString())
     } else {
-      core.setFailed(
+      setFailed(
         `Gradle Wrapper Validation Failed!\n  See https://github.com/gradle/wrapper-validation-action#reporting-failures\n${result.toDisplayString()}`
       )
     }
   } catch (error) {
-    core.setFailed(error.message)
+    if(error instanceof Error)
+      setFailed(error.message)
   }
 }