index.js

const core = require('@actions/core')
const github = require('@actions/github')
const check = require('./src/checks')

// most @actions toolkit packages have async methods
async function run() {
  try {
    const pr = github.context.payload.pull_request

    const skipKey = core.getInput("skip-key", {required: false}) || "URGENT"
    if (pr.title.indexOf(skipKey) !== -1) {
      core.warning(`[${skipKey}] in title, check skipped!!!`)
      return
    }

    const exemptUsersStr = core.getInput("exempt-users")
    if (exemptUsersStr) {
      let exemptUsers = []
      const ghUserName = pr.user.login
      /* eslint no-empty: ["error", { "allowEmptyCatch": true }] */
      try {
        exemptUsers = JSON.parse(exemptUsersStr)
      } catch (e) {}
      if (exemptUsers.indexOf(ghUserName) !== -1) {
        core.warning(`[${ghUserName}] was in exempted list, check skipped!!!`)
        return
      }
    }

    const checkItemStr = core.getInput('check-items') || "all";
    let checkItems = null
    try {
      checkItems = JSON.parse(checkItemStr)
    } catch(e) {
      checkItems = checkItemStr
    }

    const checkResults = check(pr, checkItems)
    checkResults.forEach(cr => {
      core.info(`Check for "${cr.checkItem}" ${cr.success ? "successful" : "failure"}: ${cr.message}`)
    })

    const failures = checkResults.filter(r => !r.success)

    if (failures.length > 0) {
      core.setFailed("These items check failed: " + failures.map(r => r.checkItem).join(", "))
    }
  } catch (error) {
    core.setFailed(error.message);
  }
}

run();