missing_changelog_urls.js

const { searchChangeLogUrl } = require('rubygems-changelog-url')

const GITHUB_REPOSITORY_URL_REGEXP = new RegExp('^https://github.com/([^/]+)/([^/]+)/?$')
const GITHUB_TREE_URL_REGEXP = new RegExp('^https://github.com/([^/]+)/([^/]+)/tree/[^/]+/(.+)$')

function findGithubUrl(gem) {
  const match = (url) => (url && (!!url.match(GITHUB_REPOSITORY_URL_REGEXP) || !!url.match(GITHUB_TREE_URL_REGEXP)))
  return [gem['project_uri'], gem['homepage_uri'], gem['source_code_uri']].find(match)
}

let chunk = ''
process.stdin.on('data', data => {
  chunk = chunk + data
}).on('end', async () => {
  const gems = JSON.parse(chunk)
  for (const gem of gems.filter(gem => !!gem)) {
    try {
      const url = await searchChangeLogUrl({
        name: gem['name'],
        projectUri: gem['project_uri'],
        homepageUri: gem['homepage_uri'],
        sourceCodeUri: gem['source_code_uri'],
        changelogUri: gem['changelog_uri']
      }, {
        token: process.env.GITHUB_APIKEY
      })
      console.log(`${gem['name']},${findGithubUrl(gem)},${url}`)
    } catch (e) {
      console.error(`ERROR: gem=${gem['name']}, error=${e}`)
    }
  }
})