Get GitHub repo contributors from last month

index.js

const axios = require('axios').default;

// define date ranges to process commits
const now = new Date();
const pastMonthStart = new Date(Date.UTC(now.getUTCFullYear(), now.getUTCMonth() - 1, 1));
const currentMonthStart = new Date(Date.UTC(now.getUTCFullYear(), now.getUTCMonth(), 1));

console.log('Retrieving PRs...');
axios
  .get(`https://api.github.com/repos/pnp/cli-microsoft365/pulls?state=closed&sort=updated&direction=desc&per_page=100`)
  .then(res => {
    var contributors = [];

    console.log(`Found ${res.data.length} PRs. Processing...`);

    for (let i = 0; i < res.data.length; i++) {
      const pr = res.data[i];
      const prClosedDate = new Date(pr.closed_at);
      const prUpdatedDate = new Date(pr.updated_at);

      console.log(`${i + 1} Processing PR${pr.number}...`);

      if (prClosedDate >= currentMonthStart) {
        // commit done in the current month, skip
        console.log(`  PR closed on ${prClosedDate}. Skipping`);
        continue;
      }

      if (prUpdatedDate < pastMonthStart) {
        // commit older than last month, stop processing
        console.log(`  PR updated on ${prUpdatedDate}. Reached too old commits. Ending processing`);
        break;
      }

      if (pr.labels.length === 0) {
        console.log('  No labels on the PR. Skipping...');
      }

      for (let j = 0; j < pr.labels.length; j++) {
        console.log(`  Checking label ${pr.labels[j].name}...`);
        if (pr.labels[j].name === 'pr-merged') {
          if (contributors.indexOf(pr.user.login) < 0) {
            console.log(`  Contributor ${pr.user.login} not in the list. Adding...`);
            contributors.push(pr.user.login);
          }
          else {
            console.log(`  Contributor ${pr.user.login} already on the list`);
          }
          break;
        }

        console.log(`  PR closed but not merged. Skipping...`);
      }
    }

    console.log('Found contributors:');
    console.log(contributors);
  })
  .catch(err => {
    console.error(err);
  })

package.json

{
  "name": "gh-contributors",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "axios": "^0.20.0"
  }
}