[minor] Standard formatting

package.json

@@ -27,6 +27,7 @@
     "js-yaml": "^4.1.0"
   },
   "devDependencies": {
-    "@vercel/ncc": "^0.34.0"
+    "@vercel/ncc": "^0.34.0",
+    "standard": "^17.0.0"
   }
 }

src/index.js

@@ -1,10 +1,11 @@
-const core = require('@actions/core');
-const yaml = require('js-yaml');
-const fs = require('fs').promises;
-const util = require('util');
+const core = require('@actions/core')
+const yaml = require('js-yaml')
+const fs = require('fs').promises
+const util = require('util')
 const glob = util.promisify(require('glob'))
 const path = require('path')
-const github = require('@actions/github')
+
+const actionName = 'Makeshift/generate-dependabot-glob-action'
 
 const globOpts = {
   root: process.cwd(),
@@ -16,22 +17,22 @@ const globOpts = {
 
 const clone = obj => JSON.parse(JSON.stringify(obj))
 
-async function run() {
-  const templateFile = core.getInput('template-file') || '.github/dependabot.template.yml';
-  const template = yaml.load(await fs.readFile(templateFile, 'utf8'));
+async function run () {
+  const templateFile = core.getInput('template-file') || '.github/dependabot.template.yml'
+  const template = yaml.load(await fs.readFile(templateFile, 'utf8'))
 
   const newUpdates = []
 
-  for (let entry of template.updates) {
-    core.info(`Processing entry ${entry.directory} for ecosystem ${entry["package-ecosystem"]}`)
+  for (const entry of template.updates) {
+    core.info(`Processing entry ${entry.directory} for ecosystem ${entry['package-ecosystem']}`)
     const baseUpdate = clone(entry)
     const matchingFiles = await glob(entry.directory, globOpts)
     core.info(`Found ${matchingFiles.length} files matching ${entry.directory}`)
     const matchingDirs = new Set(matchingFiles.map(file => path.dirname(file)))
     core.info(`Found ${matchingDirs.length} directories matching ${entry.directory}`)
 
-    for (let dir of matchingDirs) {
-      core.info(`Creating entry for ${dir} with ecosystem ${entry["package-ecosystem"]}`)
+    for (const dir of matchingDirs) {
+      core.info(`Creating entry for ${dir} with ecosystem ${entry['package-ecosystem']}`)
       const newUpdate = clone(baseUpdate)
       newUpdate.directory = dir
       newUpdates.push(newUpdate)
@@ -40,11 +41,12 @@ async function run() {
 
   core.info(`Here's the final config: ${JSON.stringify(newUpdates)}`)
   template.updates = newUpdates
-  core.info("Writing config to .github/dependabot.yml")
-  await fs.writeFile('.github/dependabot.yml', yaml.dump(template))
+  core.info('Writing config to .github/dependabot.yml')
+  const warning = `# This file is generated by the ${actionName} action via a GitHub Actions Workflow from the template file '${templateFile}'. Do not edit directly.`
+  await fs.writeFile('.github/dependabot.yml', warning + '\n' + yaml.dump(template))
 }
 
 run().catch(error => {
   console.log(error)
   core.setFailed(error.message)
-});
+})