config.yml

version: 2.1

#----------------------------------------------------------------------------#
# Commands are used as building blocks for jobs, which run through workflows #
#----------------------------------------------------------------------------#

commands:
  # gofmt performs checks on the entire codebase to ensure everything is formated
  # with the gofmt tool.
  gofmt:
    steps:
      - checkout
      - run:
          name: Run gofmt
          command: ./gofmt.sh

  # govet does govet checks in the entire codebase.
  govet:
    steps:
      - checkout
      - run:
          name: Run govet
          command: ./govet.sh

  # staticcheck runs staticcheck in the entire codebase.
  staticcheck:
    steps:
      - checkout
      - run:
          name: Run staticcheck
          command: ./staticcheck.sh

  # check_deprecations ensures a release is actually removing deprecated fields
  # that were supposed to be discontinued in said release.
  check_deprecations:
    steps:
      - run:
          name: Run deprecation tests when on a tagged commit
          command: |
            if [ "$CIRCLE_TAG" != "" ]; then
              # Negate the result so process exits with 1 if anything found
              echo "Searching for \"action needed\" tags..."
              ! egrep -irn -A 1 --include=*.go "Action.+needed.+in.+release:.+$CIRCLE_TAG" ./
            fi

  # install_go_deps installs the go dependencies of the project.
  install_go_deps:
    steps:
      - checkout
      - run:
          name: Install dep
          command: curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
      - restore_cache:
          keys:
            - v1-pkg-cache
      - run:
          name: Install project dependencies using dep
          command: dep ensure -v
      - save_cache:
          key: v1-pkg-cache
          paths:
            - "/go/src/github.com/stellar/go/vendor"
            - "/go/src/pkg/dep"

  # test_packages performs tests on all packages of the monorepo.
  test_packages:
    steps:
      - run:
          name: Install dependencies
          command: sudo apt-get update && sudo apt-get install postgresql-client-9.6 mariadb-client-10.1
      - run:
          name: Install dockerize
          command: wget https://github.com/jwilder/dockerize/releases/download/$DOCKERIZE_VERSION/dockerize-linux-amd64-$DOCKERIZE_VERSION.tar.gz && sudo tar -C /usr/local/bin -xzvf dockerize-linux-amd64-$DOCKERIZE_VERSION.tar.gz && rm dockerize-linux-amd64-$DOCKERIZE_VERSION.tar.gz
          environment:
            DOCKERIZE_VERSION: v0.3.0
      - run:
          name: Wait for mysql, postgres and redis
          command: |
            dockerize -wait tcp://localhost:5432 -timeout 1m
            dockerize -wait tcp://localhost:3306 -timeout 1m
            dockerize -wait tcp://localhost:6379 -timeout 1m
      - run:
          name: Run package tests
          command: ./support/scripts/run_tests

  # build_packages creates the project's artifacts.
  build_packages:
    steps:
      - run:
          name: Build release artifacts
          command: go run ./support/scripts/build_release_artifacts/main.go

#-----------------------------------------------------------------------------#
# Jobs use the commands to accomplish a given task, and run through workflows #
#-----------------------------------------------------------------------------#

jobs:
  # check_code_1_10 performs code checks using Go 1.10 (gofmt is only run for 1.12).
  check_code_1_10:
    working_directory: /go/src/github.com/stellar/go
    docker:
      - image: circleci/golang:1.10
    steps:
      - govet

  # check_code_1_11 performs code checks using Go 1.11 (gofmt is only run for 1.12).
  check_code_1_11:
    working_directory: /go/src/github.com/stellar/go
    docker:
      - image: circleci/golang:1.11
    steps:
      - govet

  # check_code_1_12 performs code checks using Go 1.12.
  check_code_1_12:
    working_directory: /go/src/github.com/stellar/go
    docker:
      - image: circleci/golang:1.12
    steps:
      - install_go_deps
      - gofmt
      - govet
      - staticcheck

  # test_code_1_10 performs all package tests using Go 1.10.
  test_code_1_10:
    working_directory: /go/src/github.com/stellar/go
    docker:
      - image: circleci/golang:1.10
        environment:
          PGHOST: localhost
          PGPORT: 5432
          PGUSER: circleci
          MYSQL_HOST: 127.0.0.1
          MYSQL_PORT: 3306
      - image: circleci/postgres:9.6.5-alpine-ram
        environment:
          POSTGRES_USER: circleci
      - image: circleci/mysql:5.7
      - image: circleci/redis:5.0-alpine
    steps:
      - install_go_deps
      - test_packages

  # test_code_1_11 performs all package tests using Go 1.11.
  test_code_1_11:
    working_directory: /go/src/github.com/stellar/go
    docker:
      - image: circleci/golang:1.11
        environment:
          PGHOST: localhost
          PGPORT: 5432
          PGUSER: circleci
          MYSQL_HOST: 127.0.0.1
          MYSQL_PORT: 3306
      - image: circleci/postgres:9.6.5-alpine-ram
        environment:
          POSTGRES_USER: circleci
      - image: circleci/mysql:5.7
      - image: circleci/redis:5.0-alpine
    steps:
      - install_go_deps
      - test_packages

  # test_code_1_12 performs all package tests using Go 1.12.
  test_code_1_12:
    working_directory: /go/src/github.com/stellar/go
    docker:
      - image: circleci/golang:1.12
        environment:
          PGHOST: localhost
          PGPORT: 5432
          PGUSER: circleci
          MYSQL_HOST: 127.0.0.1
          MYSQL_PORT: 3306
      - image: circleci/postgres:9.6.5-alpine-ram
        environment:
          POSTGRES_USER: circleci
      - image: circleci/mysql:5.7
      - image: circleci/redis:5.0-alpine
    steps:
      - install_go_deps
      - test_packages

  # publish_artifacts builds and uploads artifacts to any tagged commit.
  #
  # NOTE: this commands relies on an env var called GITHUB_TOKEN which is a
  # GH OAUTH token with `repo` access.
  publish_artifacts:
    working_directory: /go/src/github.com/stellar/go
    docker:
      - image: circleci/golang:1.11
    steps:
      - check_deprecations
      - install_go_deps
      - build_packages
      - attach_workspace:
          at: ./dist
      - run:
          name: "Publish release on GitHub"
          command: |
            if [ -d "./dist" ] 
            then
              go get github.com/tcnksm/ghr
              ghr -t ${GITHUB_TOKEN} -u ${CIRCLE_PROJECT_USERNAME} -r ${CIRCLE_PROJECT_REPONAME} -c ${CIRCLE_SHA1} ${CIRCLE_TAG} ./dist/
            else
                echo "./dist does not exist. No binaries to publish for ${CIRCLE_TAG}."
            fi            
#-------------------------------------------------------------------------#
# Workflows orchestrate jobs and make sure they run in the right sequence #
#-------------------------------------------------------------------------#

workflows:
  version: 2

  check_code_and_test:
    jobs:
      - check_code_1_10
      - check_code_1_11
      - check_code_1_12
      - test_code_1_10
      - test_code_1_11
      - test_code_1_12

  build_and_deploy:
    jobs:
      - publish_artifacts:
          filters:
              tags:
                ignore: snapshots
              branches:
                ignore: /.*/