action.yml

name: 'conda subchannel'
description: 'Republish a subset of an existing conda channel'
inputs:
  subchannel-name:
    description: "Name of the subchannel that will be created"
    required: false
    default: "subchannel"
  served-at:
    description: "URL where the subchannel files will be uploaded to"
    required: false
    default: ""
  channel:
    description: "Source conda channel"
    required: true
  repodata-fn:
    description: "Source repodata file to process from channel"
    required: false
    default: "repodata.json"
  base-url:
    description: "URL where the packages will be available. Defaults to the base URL for 'channel'"
    required: false
    default: ""
  subdirs:
    description: "List of platforms to support, space separated. Defaults to linux-64. Noarch is always included" 
    required: false
    default: "linux-64"
  after:
    description: "Timestamp as ts:<float> or date as YYYY-[MM[-DD[-HH[-MM[-SS]]]]]"
    required: false
    default: ""
  before:
    description: "Timestamp as ts:<float> or date as YYYY-[MM[-DD[-HH[-MM[-SS]]]]]"
    required: false
    default: ""
  keep-trees:
    description: "Keep packages matching these specs and their dependencies. Space separated"
    required: false
    default: ""
  keep-specs:
    description: "Keep packages matching these specs only. Space separated"
    required: false
    default: ""
  prune-specs:
    description: "Remove the distributions (within the corresponding package name) that do not match these specs. Space separated"
    required: false
    default: ""
  remove-specs:
    description: "Remove packages matching these specs. Space separated"
    required: false
    default: ""
  gh-pages-branch:
    description: "Name of the branch for the GH Pages deployment. Set to `''` to disable."
    required: false
    default: gh-pages
outputs:
  output-directory:
    description: "Path to the directory containing the subchannel data"
    value: ${{ steps.validate.outputs.output-directory }}
runs:
  using: "composite"
  steps:
    - name: Check Runner OS
      if: ${{ runner.os != 'Linux' }}
      shell: bash
      run: |
        echo "::error title=⛔ error hint::Only Linux is supported"
        exit 1
    - name: Validate inputs
      shell: bash
      id: validate
      run: |
        # Validate inputs
        if [[ 
          "${{ inputs.after }}" == "" 
          && "${{ inputs.before }}" == "" 
          && "${{ inputs.keep-trees }}" == "" 
          && "${{ inputs.keep-specs }}" == "" 
          && "${{ inputs.prune-specs }}" == "" 
          && "${{ inputs.remove-specs }}" == "" 
        ]]; then
          echo "::error title=⛔ error hint::At least one of `after`, `before`, `keep-trees`, `keep-specs` or `remove-specs` must be set"
          exit 1
        fi
        mkdir -p "${{ runner.temp }}/subchannel"
        echo "output-directory=${{ runner.temp }}/${{ inputs.subchannel-name }}" >> $GITHUB_OUTPUT
    - uses: prefix-dev/setup-pixi@632d17935141ec801697e2c359784b878adecbbe # v0.6.0
      with:
        environments: default
        manifest-path: ${{ github.action_path }}/pyproject.toml
    - name: Setup project
      shell: bash
      run: |
        # Install project
        cd "${{ github.action_path }}"
        SETUPTOOLS_SCM_PRETEND_VERSION=0.1 pixi run --environment default python -mpip install --no-deps .
    - name: Prepare command
      shell: pixi run --manifest-path "${{ github.action_path }}/pyproject.toml" --environment default python -u {0}
      run: |
        # Prepare and run conda subchannel
        import subprocess
        import sys

        args = [
            "--channel",
            """${{ inputs.channel }}""".strip(),
            "--output",
            "${{ steps.validate.outputs.output-directory }}",
            "--repodata-fn",
            """${{ inputs.repodata-fn }}""".strip(),
        ]
        served_at = """${{ inputs.served-at }}""".strip()
        if served_at:
            args += ["--served-at", served_at]
        base_url = """${{ inputs.base-url }}""".strip()
        if base_url:
            args += ["--base-url", base_url]
        after = """${{ inputs.after }}""".strip()
        if after:
            args += ["--after", after]
        before = """${{ inputs.before }}""".strip()
        if before:
            args += ["--before", before]
        subdirs = """${{ inputs.subdirs }}""".strip()
        for subdir in subdirs.split():
            args += ["--subdir", subdir]
        keep_trees = """${{ inputs.keep-trees }}""".strip()
        for spec in keep_trees.split():
            args += ["--keep-tree", spec]
        keep_specs = """${{ inputs.keep-specs }}""".strip()
        for spec in keep_specs.split():
            args += ["--keep", spec]
        prune_specs = """${{ inputs.prune-specs }}""".strip()
        for spec in prune_specs.split():
            args += ["--prune", spec]
        remove_specs = """${{ inputs.remove-specs }}""".strip()
        for spec in remove_specs.split():
            args += ["--remove", spec]

        print("Running: conda subchannel", *args)
        p = subprocess.run(
            [sys.executable, "-mconda", "subchannel", *args],
        )
        sys.exit(p.returncode)
    - name: Decide deployment
      id: decide
      shell: bash
      run: |
        # Decide if we deploy to GH Pages or not
        if [[ "${{ inputs.gh-pages-branch }}" != "" && "${{ github.ref }}" == "refs/heads/main" ]]; then
          echo "deploy=true" >> $GITHUB_OUTPUT
        else
          echo "Will skip deployment to GH Pages."
          echo "deploy=false" >> $GITHUB_OUTPUT
        fi
    - uses: peaceiris/actions-gh-pages@4f9cc6602d3f66b9c108549d475ec49e8ef4d45e # v4.0.0
      if: steps.decide.outputs.deploy == 'true'
      with:
        github_token: ${{ github.token }}
        publish_branch: ${{ inputs.gh-pages-branch }}
        publish_dir: ${{ steps.validate.outputs.output-directory }}
        user_name: 'github-actions[bot]'
        user_email: 'github-actions[bot]@users.noreply.github.com'
        enable_jekyll: false