Get the latest git SHA

next.config.js

/** Vercel they provide some environment variables you could use to get the latest Git SHA:  */

 const COMMIT_SHA = 
   VERCEL_GITHUB_COMMIT_SHA || 
   VERCEL_GITLAB_COMMIT_SHA || 
   VERCEL_BITBUCKET_COMMIT_SHA 


/** Otherwise you'd need to get it yourself  */

const cp = require('child_process');
const gitSha = cp.execSync('git rev-parse HEAD', {
  cwd: __dirname,
  encoding: 'utf8'
});


/** or the short version of the SHA */


const cp = require('child_process');
const gitSha = cp.execSync('git rev-parse --short HEAD', {
  cwd: __dirname,
  encoding: 'utf8'
});