publish-please/lib/validations/branch.js

Safe and highly functional replacement for `npm publish`.

'use strict';

const exec = require('cp-sugar').exec;
const inputWithConfirmation = require('../utils/inquires').inputWithConfirmation;

module.exports = {
    option: 'branch',
    statusText: 'Validating branch',
    defaultParam: 'master',

    configurator(currentVal) {
        return inputWithConfirmation('Would you like to verify that you are publishing from the correct git branch?', false, 'Which branch should it be?', currentVal);
    },
    canRun: () => true,
    run(expected) {
        return exec('git branch --no-color').then(branches => branches.split('\n').filter(branch => branch.includes('* '))[0].replace('* ', '')).then(branch => {
            if (expected.match(/^\/.*\/$/)) {
                const regexp = new RegExp(expected.replace(/^\/(.*)\/$/, '$1'));
                if (!regexp.test(branch)) {
                    throw `Expected branch to match ${expected}, but it was '${branch}'.`;
                }
            } else if (branch !== expected) throw `Expected branch to be '${expected}', but it was '${branch}'.`;
        });
    }
};