Hands-On Continuous Integration and Delivery

Config command

The config command validates and updates the CircleCI configuration YML script:

Here the config command also takes the validate command, which validates your config YML script file.

Let us validate the configuration script in the functional-summer repo (https://github.com/packtci/functional-summer):

Let us look at the configuration script again:

version: 2jobs:build:    docker:        # specify the version you desire here        - image: circleci/node:7.10    working_directory: ~/repo    steps:        - checkout        - restore_cache:            keys:                - v1-dependencies-{{ ...