version: '3'

env:
  IMAGE: jswank/alpine-cli
  NAME: alpine-cli

vars:
  TAG:
    sh: 'grep ^FROM Dockerfile  | cut -d: -f2'
tasks:
  default:
    cmds:
      - task: build
  build:
    desc: build a new image; use CLI_ARGS to pass additional arguments (build -- --no-cache).
    cmds:
      - (podman manifest exists {{.IMAGE}}:{{.TAG}} && podman manifest rm {{.IMAGE}}:{{.TAG}}) || true
      - podman manifest create {{.IMAGE}}:{{.TAG}}
      - podman build {{.CLI_ARGS}} --platform linux/amd64,linux/arm64 --manifest {{.IMAGE}}:{{.TAG}} {{.CLI_ARGS}} -f Dockerfile ctx
  publish:
    desc: publish the image
    cmds:
      - podman tag {{.IMAGE}}:{{.TAG}} {{.REGISTRY}}/{{.IMAGE}}:{{.ALT_TAG}}
      - echo "${{.REGISTRY_PASS_VAR}}" | podman login {{.REGISTRY}} -u {{.REGISTRY_USER}} --password-stdin
      - podman manifest push {{.REGISTRY}}/{{.IMAGE}}:{{.ALT_TAG}}
      - podman logout {{.REGISTRY}}
    vars:
      REGISTRY_PASS_VAR: GH_PAT
      REGISTRY: ghcr.io
      REGISTRY_USER: jswank
      ALT_TAG: '{{.TAG}}'