project standard format for Pivotal

prepare-commit-msg.js

#!/usr/bin/env node

/**
 * Format commit message as required by Pivotal hook
 * export PIVTOKEN="<your token>"
 * write you commit message with story id anywhere, preferred at the beginning or end of message
 * commit message will formats into
 * [Delivers #<story ID>] <Story title>\n <commit message>
 */

const path = require('path')
const fs = require('fs')
const https = require('https')

// MUST BE KEPT SECRET
const PIVTOKEN = process.env.PIVTOKEN
const baseUrl = 'https://www.pivotaltracker.com/services/v5/stories/'
const filePath = process.argv[2]

const getStory = (url) => {
  const options = {
    method: 'GET',
    headers: {
      'X-TrackerToken': PIVTOKEN,
    },
    timeout: 1000, // in ms
  }

  return new Promise((resolve, reject) => {
    const req = https.request(url, options, (res) => {
      if (res.statusCode < 200 || res.statusCode > 299) {
        return reject(new Error(`HTTP status code ${res.statusCode}`))
      }

      const body = []
      res.on('data', (chunk) => body.push(chunk))
      res.on('end', () => {
        const resString = Buffer.concat(body).toString()
        resolve(resString)
      })
    })

    req.on('error', (err) => {
      reject(err)
    })

    req.on('timeout', () => {
      req.destroy()
      reject(new Error('Request time out'))
    })

    req.end()
  })
}

const writeMsg = (filePath, message, res) => {
  const prepMsg = `[Delivers #${res.id}] ${res.name}\n${message}`
  fs.writeFile(filePath, prepMsg, function (err) {
    if (err) {
      console.log(err);
      process.exit(1)
    }
  });
}

try {
  const message = fs.readFileSync(filePath, 'utf8')
  const isFormatted = /^\[Delivers/.test(message)
    if (!isFormatted) {
      // get story id from message
      const storyId = /#(\d+)/.exec(message)?.pop()
      if (storyId) {
        // remove id from message
        const onlyMsg = message.replace(/#(\d+)/, '')
        // fetch story name
        getStory(baseUrl + storyId)
        .then((res) => {
          res = JSON.parse(res)
          // write to file
          writeMsg(filePath, onlyMsg, res)
          })
        .catch((err) => {
          console.error(err)
          process.exit(1)
        })
      }
    }
} catch (err) {
  console.error(err)
  process.exit(1)
}