constellation/.github/actions/artifact_upload/action.yml

name: Upload artifact
description: Upload an encrypted zip archive as a github artifact.

inputs:
  path:
    description: 'The path(s) that should be uploaded. Paths may contain globs. Only the final component of a path is uploaded.'
    required: true
  name:
    description: 'The name of the artifact.'
    required: true
  retention-days:
    description: 'How long the artifact should be retained for.'
    default: 60
  encryptionSecret:
    description: 'The secret to use for encrypting the files.'
    required: true
  overwrite:
    description: 'Overwrite an artifact with the same name.'
    default: false
    required: false

runs:
  using: "composite"
  steps:
    - name: Install 7zip
      uses: ./.github/actions/setup_bazel_nix
      with:
        nixTools: |
          _7zz          

    - name: Create temporary directory
      id: tempdir
      shell: bash
      run: echo "directory=$(mktemp -d)" >> "$GITHUB_OUTPUT"

    - name: Create archive
      shell: bash
      run: |
        set -euo pipefail
        shopt -s extglob
        paths="${{ inputs.path }}"
        paths=${paths%$'\n'} # Remove trailing newline
        # Check if any file matches the given pattern(s).
        something_exists=false
        for pattern in ${paths}
        do
          if compgen -G "${pattern}" > /dev/null; then
            something_exists=true
          fi
        done

        # Create an archive if files exist.
        # Don't create an archive file if no files are found
        # and warn.
        if ! ${something_exists}
        then
          echo "::warning:: No files/directories found with the provided path(s): ${paths}. No artifact will be uploaded."
          exit 0
        fi

        for target in ${paths}
        do
          if compgen -G "${target}" > /dev/null
          then
            pushd "$(dirname "${target}")"
            7zz a -p'${{ inputs.encryptionSecret }}' -bso0 -bsp0 -t7z -ms=on -mhe=on "${{ steps.tempdir.outputs.directory }}/archive.7z" "$(basename "${target}")"
            popd
          fi
        done        

    - name: Upload archive as artifact
      uses: actions/upload-artifact@0b2256b8c012f0828dc542b3febcab082c67f72b # v4.3.4
      with:
        name: ${{ inputs.name }}
        path: ${{ steps.tempdir.outputs.directory }}/archive.7z
        retention-days: ${{ inputs.retention-days }}
        if-no-files-found: ignore
        overwrite: ${{ inputs.overwrite }}