Taskfile.yml

version: '3'

vars:
  PACKAGE: clad-body

tasks:
  test:
    desc: "Run measurement regression tests (add -- --view for 4-view renders)"
    cmds:
      - bash -c 'source ${VENV:-venv}/bin/activate && pytest tests/ -v {{.CLI_ARGS}}'

  bump:
    desc: "Bump version and create git tag. BUMP=patch|minor|major (default: patch)"
    vars:
      BUMP: '{{default "patch" .BUMP}}'
    cmds:
      - |
        current=$(cat "{{.TASKFILE_DIR}}/VERSION" | tr -d '[:space:]')
        IFS='.' read -r major minor patch <<< "$current"
        case "{{.BUMP}}" in
          major) major=$((major + 1)); minor=0; patch=0 ;;
          minor) minor=$((minor + 1)); patch=0 ;;
          patch) patch=$((patch + 1)) ;;
          *) echo "Error: BUMP must be patch|minor|major" >&2; exit 1 ;;
        esac
        new="${major}.${minor}.${patch}"
        tag="{{.PACKAGE}}/v${new}"

        if git rev-parse "$tag" >/dev/null 2>&1; then
          echo "Error: tag $tag already exists. Tags are immutable." >&2
          exit 1
        fi

        echo "$new" > "{{.TASKFILE_DIR}}/VERSION"
        git add "{{.TASKFILE_DIR}}/VERSION"
        git commit -m "chore: bump {{.PACKAGE}} to $new"
        git tag "$tag"
        echo "Bumped {{.PACKAGE}}: $current → $new  (tag: $tag)"

  _check-clean:
    internal: true
    desc: Fail if there are staged or unstaged changes
    cmds:
      - |
        UNSTAGED=$(git diff --name-only -- "{{.TASKFILE_DIR}}")
        STAGED=$(git diff --cached --name-only -- "{{.TASKFILE_DIR}}")
        if [ -n "$UNSTAGED" ] || [ -n "$STAGED" ]; then
          echo "Error: uncommitted changes — the git tag would not match what is shipped." >&2
          [ -n "$STAGED"   ] && echo "  Staged:$( echo "$STAGED"   | sed 's/^/\n    /')" >&2
          [ -n "$UNSTAGED" ] && echo "  Unstaged:$(echo "$UNSTAGED" | sed 's/^/\n    /')" >&2
          echo "Commit or stash changes, then retry." >&2
          exit 1
        fi

  _build:
    internal: true
    deps: [test]
    dir: "{{.TASKFILE_DIR}}"
    cmds:
      - rm -rf "{{.TASKFILE_DIR}}/dist"
      - uv build --out-dir "{{.TASKFILE_DIR}}/dist"

  _publish:
    internal: true
    desc: "Publish to registry. Set PUBLISH_URL and PUBLISH_TOKEN env vars, or defaults to GCP AR."
    dir: "{{.TASKFILE_DIR}}"
    cmds:
      - |
        URL="${PUBLISH_URL:-https://europe-west1-python.pkg.dev/clad-main/clad-python/}"
        TOKEN="${PUBLISH_TOKEN:-$(gcloud auth print-access-token)}"
        uv publish --publish-url "$URL" --username _token --password "$TOKEN" dist/*

  ship:
    desc: "check-clean → bump → build → publish → release. BUMP=patch|minor|major (default: patch)"
    vars:
      BUMP: '{{default "patch" .BUMP}}'
    cmds:
      - task: _check-clean
      - task: bump
        vars: {BUMP: "{{.BUMP}}"}
      - task: _build
      - task: _publish
      - |
        version=$(cat "{{.TASKFILE_DIR}}/VERSION" | tr -d '[:space:]')
        tag="{{.PACKAGE}}/v${version}"
        git push origin HEAD "$tag"
        echo ""
        echo "Shipped {{.PACKAGE}}==${version} — CI will publish to PyPI and create GitHub release"