# Semaphore Tasks
# These tasks should be used to build and develop Semaphore
#
# Tasks without a `desc:` field are intended mainly to be called
# internally by other tasks and therefore are not listed when running `task` or `task -l`
version: '2'

tasks:
  all:
    desc: Install, Compile, Test and Build Semaphore for local architecture
    cmds:
      - task: deps
      - task: compile
      - task: test
      - task: build:local

  deps:
    desc: Install all dependencies
    cmds:
     - task: deps:tools
     - task: deps:be
     - task: deps:fe

  deps:be:
    desc: Vendor application dependencies
    cmds:
      - dep ensure -vendor-only

  deps:fe:
    desc: Installs npm requirements for front end from package.json
    dir: web
    cmds:
      - npm i -g less pug-cli
      - npm install

  deps:tools:
    desc: Installs tools needed
    dir: web
    vars:
      GORELEASER_VERSION: "0.62.5"
    cmds:
      - npm install -g nodemon
      - go get -u github.com/golang/dep/cmd/dep
      - go get github.com/cespare/reflex || true
      - go get -u github.com/gobuffalo/packr/...
      - go get -u github.com/haya14busa/goverage
      - '{{ if ne OS "windows" }} curl -L https://github.com/goreleaser/goreleaser/releases/download/v{{ .GORELEASER_VERSION }}/goreleaser_$(uname -s)_$(uname -m).tar.gz | tar -xz -C ${GOPATH}/bin{{ else }}ver>nul{{ end }}'
      - '{{ if ne OS "windows" }} chmod +x ${GOPATH}/bin/goreleaser{{ else }}ver>nul{{ end }}'
      - '{{ if eq OS "windows" }} echo "NOTICE: You must download goreleaser manually to build this application https://github.com/goreleaser/goreleaser/releases "{{ else }}:{{ end }}'
  compile:
    desc: Generates compiled frontend and backend resources (must be in this order)
    cmds:
      - task: compile:fe
      - task: compile:be

  compile:fe:
    desc: Runs less, pug and node
    dir: web
    sources:
      - resources/css/semaphore.less
      - resources/html/*.pug
      - resources/html/**/*.pug
    generates:
      - public/css/semaphore.css
      - public/html/*.html
      - public/html/**/*.html
      - bundle.json
    cmds:
      - lessc resources/less/semaphore.less > public/css/semaphore.css
      - pug resources/pug --out public/html
      - cp node_modules/font-awesome/fonts/* public/fonts
      - node bundler.js

  compile:be:
    desc: Runs Packr for static assets
    sources:
      - web/public/*
      - db/migrations/*
    generates:
      - db/db-packr.go
      - api/api-packr.go
    cmds:
      - packr
      - go run util/version_gen/generator.go {{ if .TAG }}{{ .TAG }}{{ else }}{{ if .SEMAPHORE_VERSION }}{{ .SEMAPHORE_VERSION }}{{ else }}{{ .BRANCH }}-{{ .SHA }}-{{ .TIMESTAMP }}{{ if .DIRTY }}-dirty{{ end }}{{ end }}{{end}}
    vars:
      TAG:
        sh: git name-rev --name-only --tags --no-undefined HEAD 2>/dev/null | sed -n 's/^\([^^~]\{1,\}\)\(\^0\)\{0,1\}$/\1/p'
      BRANCH:
        sh: git rev-parse --abbrev-ref HEAD
      DIRTY:
        sh: git status --porcelain
      SHA:
        sh: git log --pretty=format:'%h' -n 1
      TIMESTAMP:
        sh: date +%s

  watch:
    desc: Watch fe and be file changes and rebuild
    dir: web/resources
    cmds:
      - task: watch:fe
      - task: watch:be

  watch:be:
    cmds:
      - reflex -r '\.go$' -R '^node_modules/' -s -d none -- sh -c 'go build -i -o /tmp/semaphore_bin cli/main.go && /tmp/semaphore_bin -config $(pwd)/config.json'

  watch:fe:
    dir: web
    cmds:
      - nodemon -w js -i bundle.js -e js bundler.js &
      - nodemon -w css -e less --exec "lessc resources/less/semaphore.less > public/css/semaphore.css" &
      - pug -w -P --doctype html resources/pug --out public/html &

  build:
    desc: Build a full set of release binaries and packages
    cmds:
      - task: release

  build:local:
    desc: Build a binary for the current architecture
    dir: cli
    cmds:
     - go build -o ../bin/semaphore

  release:
    desc: creates a release without performing validations or publishing artifacts
    cmds:
      - goreleaser --snapshot --rm-dist

  release:prod:
    cmds:
      - goreleaser

  test:
    desc: Run go code tests
    cmds:
      - go vet ./...
      # 2> /dev/null makes goverage less noisy about pattern matching
      # if no tests exist but will still print failing test results
      - goverage -v -coverprofile=coverage.out ./... 2> /dev/null

  ci:artifacts:
    cmds:
      - rsync -a bin/ $CIRCLE_ARTIFACTS/

  # docker(-compose) commands
  dc:dev:
    desc: build and start a development stack using docker-compose
    cmds:
      - task: docker
        vars:
          context: dev
          args: build semaphore_dev
          compose: true
      - task: dc:up
        vars:
          context: dev

  # convenience function to build and start a production like stack
  dc:prod:
    desc: build and start a production like stack using docker-compose
    cmds:
      - task: docker
        vars:
          context: prod
          args: build semaphore
          compose: true
      - task: dc:up
        vars:
          context: prod

  dc:up:
    desc: start a docker-compose instance, requires context
    cmds:
      - task: docker
        vars:
          compose: true
          args: up --abort-on-container-exit
          context: "{{ .context }}"

  dc:build:
    desc: build a set of docker-compose containers, requires context
    cmds:
      - task: docker
        vars:
          compose: true
          args: build
          context: "{{ .context }}"

  dc:down:
    desc: down a docker-compose instance, requires context
    cmds:
      - task: docker
        vars:
          compose: true
          args: down
          context: "{{ .context }}"

  dc:stop:
    desc: stop a docker-compose instance, requires context
    cmds:
      - task: docker
        vars:
          compose: true
          args: stop
          context: "{{ .context }}"

  docker:build:
    desc: Build an image for Semaphore, requires context
    vars:
      tag: "{{ if .tag }}{{ .tag }}{{ else }}latest{{ end }}"
    cmds:
      - task: docker
        vars:
          context: "{{ .context }}"
          action: build
          tag: "{{ .tag }}"
          args: -t castawaylabs/semaphore:{{ .tag }} .

  deps:docker:
    desc: Install docker testing dependencies. These must be installed explicitly and are not included in the general deps task.
    status:
      - test -f /usr/local/bin/goss
      - test -f /usr/local/bin/dgoss
      - test -f /usr/local/bin/hadolint
    cmds:
      - sudo curl -L https://github.com/aelsabbahy/goss/releases/download/v0.3.5/goss-linux-amd64 -o /usr/local/bin/goss
      - sudo chmod +rx /usr/local/bin/goss
      - sudo curl -L https://raw.githubusercontent.com/aelsabbahy/goss/v0.3.5/extras/dgoss/dgoss -o /usr/local/bin/dgoss
      - sudo chmod +rx /usr/local/bin/dgoss
      - sudo curl -L https://github.com/hadolint/hadolint/releases/download/v1.5.0/hadolint-Linux-x86_64 -o /usr/local/bin/hadolint
      - sudo chmod +rx /usr/local/bin/hadolint

  docker:test:
    desc: Test docker containers by building them, running tests and deleting
    deps: ['deps:docker']
    cmds:
      - task: docker:lint
        vars:
          context: "{{ .context }}"
      - task: docker:build
        vars:
          tag: "{{ .context }}-test"
      - task: docker:goss
      - docker rmi "castawaylabs/semaphore:{{ .context }}-test"

  docker:goss:
    dir: "deployment/docker/{{ .context}}"
    deps: ['deps:docker']
    cmds:
      - GOSS_FILES_STRATEGY='cp' dgoss run -it "castawaylabs/semaphore:{{ .context }}-test"

  docker:lint:
    desc: hadolint a dockerfile. Ignores version pinning warning
    dir: "deployment/docker/{{ .context}}"
    cmds:
      - hadolint Dockerfile --ignore DL3018

  # templated command to reduce code duplication
  docker:
    vars:
      docker_root: deployment/docker/
    cmds:
      - docker{{ if .compose }}-compose{{ end }} {{ if .action }}{{ .action }}{{ end }} -f {{ .docker_root }}{{ .context }}/{{ if .compose }}docker-compose.yml{{ else }}Dockerfile{{ end }} {{if .args }}{{ .args }}{{ end }}