CircleCI

  1. Create new binary cache on https://app.cachix.org and generate a signing key

  2. Replace mycache in following .circleci/config.yml:

version: 2.1

workflows:
  version: 2
  workflow:
    jobs:
      - build

jobs:
  build:
    docker:
      - image: nixos/nix:latest
        environment:
          CACHIX_NAME: mycache
    steps:
      - checkout
      - run:
          name: Set up Cachix
          command: |
            nix-env -iA nixpkgs.cachix nixpkgs.bash
            cachix use $CACHIX_NAME
            nix path-info --all > /tmp/store-path-pre-build
      - run: nix-build
      - run: nix-shell --run "echo nix-shell successfully entered"
      - run:
          name: Push to Cachix
          command: |
            bash -c "comm -13 <(sort /tmp/store-path-pre-build | grep -v '\.drv$') <(nix path-info --all | grep -v '\.drv$' | sort) | cachix push $CACHIX_NAME"

  1. Follow circleci documentation to setup environment variable using $CACHIX_SIGNING_KEY.

  2. If you’re using a private cache, export $CACHIX_AUTH_TOKEN and call cachix authtoken $CACHIX_AUTH_TOKEN` just before ``cachix use.