Taskfile.yml

---
version: '3'

vars:
  GIT_ROOT:
    sh: git rev-parse --show-toplevel

tasks:

  build:
    desc: Build an app container image using Docker
    cmds:
      - task: _build
        vars: {TAG: '{{ default "test" .TAG }}'}
    deps:
      - task: _check-app
      - task: _check-dir
      - task: _check-dockerfile
    silent: true

  load:
    desc: Load an app container image using Docker
    cmds:
      - task: _load
        vars: {TAG: '{{ default "test" .TAG }}'}
    deps:
      - task: _check-app
      - task: _check-dir
      - task: _check-dockerfile
    silent: true

  _build:
    cmds:
      - task: _check-platform
        vars: {PLATFORM: "{{ .PLATFORM }}"}
      - task: _check-version
        vars: {VERSION: "{{ .VERSION }}"}
      - >-
        docker buildx build -t "{{ .APP }}:{{ .TAG }}"
        --build-arg "VERSION={{ .VERSION }}"
        --platform "{{ .PLATFORM }}"
        -f ./apps/"{{ .APP }}"/Dockerfile .
    vars:
      PLATFORM:
        sh: cat "{{ .GIT_ROOT }}/apps/{{ .APP }}/PLATFORM"
      VERSION:
        sh: cat "{{ .GIT_ROOT }}/apps/{{ .APP }}/VERSION"
    silent: true

  _load:
    cmds:
      - task: _check-version
        vars: {VERSION: "{{ .VERSION }}"}
      - >-
        docker buildx build -t "{{ .APP }}:{{ .TAG }}"
        --build-arg "VERSION={{ .VERSION }}"
        -f ./apps/"{{ .APP }}"/Dockerfile . --load
    vars:
      VERSION:
        sh: cat "{{ .GIT_ROOT }}/apps/{{ .APP }}/VERSION"
    silent: true

  _check-app:
    cmds:
      - test -n "{{ .APP }}" || (echo "Please define APP parameter"; exit 1)
    silent: true

  _check-dockerfile:
    cmds:
      - >-
        test -f "./apps/{{ .APP }}/Dockerfile" ||
        (echo "The Dockerfile does not exist"; exit 1)
    silent: true

  _check-dir:
    cmds:
      - >-
        test -d "./apps/{{ .APP }}" ||
        (echo "The app directory does not exist"; exit 1)
    silent: true

  _check-version:
    cmds:
      - test -n "{{ .VERSION }}" || (echo "The VERSION file is empty"; exit 1)
    silent: true

  _check-platform:
    cmds:
      - >-
        test -n "{{ .PLATFORM }}" ||
        (echo "The PLATFORM file is empty"; exit 1)
    silent: true

  default:
    cmds:
    - task -l
    silent: true