fix: drop require

Author: EndBug

.eslintrc.js

@@ -12,6 +12,7 @@ module.exports = {
     sourceType: 'module'
   },
   plugins: ['@typescript-eslint'],
+  ignorePatterns: ['lib/*'],
   rules: {
     'prettier/prettier': 'warn',
     'no-cond-assign': [2, 'except-parens'],

lib/index.js

@@ -16,6 +16,7 @@ import {
   matchGitArgs,
   outputs,
   parseBool,
+  readJSON,
   setOutput
 } from './util'
 
@@ -187,8 +188,9 @@ async function checkInputs() {
   }
 
   const eventPath = process.env.GITHUB_EVENT_PATH,
-    event = eventPath && require(eventPath),
-    isPR = process.env.GITHUB_EVENT_NAME?.includes('pull_request'),
+    event = eventPath && readJSON(eventPath)
+
+  const isPR = process.env.GITHUB_EVENT_NAME?.includes('pull_request'),
     defaultBranch = isPR
       ? (event?.pull_request?.head?.ref as string)
       : process.env.GITHUB_REF?.substring(11)

src/main.ts

@@ -1,4 +1,5 @@
 import * as core from '@actions/core'
+import fs from 'fs'
 
 export type Input =
   | 'add'
@@ -49,6 +50,21 @@ export function parseBool(value: any) {
   } catch {}
 }
 
+export function readJSON(filePath: string) {
+  let fileContent: string
+  try {
+    fileContent = fs.readFileSync(filePath, { encoding: 'utf8' })
+  } catch {
+    throw `Couldn't read file. File path: ${filePath}`
+  }
+
+  try {
+    return JSON.parse(fileContent)
+  } catch {
+    throw `Couldn't parse file to JSON. File path: ${filePath}`
+  }
+}
+
 export function setOutput(name: Output, value: 'true' | 'false') {
   core.debug(`Setting output: ${name}=${value}`)
   outputs[name] = value