name: "Seal and hash source code"
description: "Seal and export source code as a tarball artifact along with its integrity hash"

# PROCESS
#
# 1. Exports artifact name using Prefix + GitHub Run ID (unique for each release trigger)
# 2. Compress entire source code as tarball OR given files
# 3. Create and export integrity hash for tarball
# 4. Upload artifact
# 5. Remove archive

# USAGE
#
# - name: Seal and upload
#   id: seal_source_code
#   uses: ./.github/actions/seal
#   with:
#     artifact_name_prefix: "source"

inputs:
  files:
    description: "Files to seal separated by space"
    required: false
  artifact_name_prefix:
    description: "Prefix to use when exporting artifact"
    required: true

outputs:
  integrity_hash:
    description: "Source code integrity hash"
    value: ${{ steps.integrity_hash.outputs.integrity_hash }}
  artifact_name:
    description: "Artifact name containTemporary branch created with staged changed"
    value: ${{ steps.export_artifact_name.outputs.artifact_name }}

runs:
  using: "composite"
  steps:
    - id: adjust-path
      run: echo "${{ github.action_path }}" >> $GITHUB_PATH
      shell: bash

    - id: export_artifact_name
      name: Export final artifact name
      run: echo "artifact_name=${ARTIFACT_PREFIX}-${GITHUB_RUN_ID}" >> "$GITHUB_OUTPUT"
      env:
        GITHUB_RUN_ID: ${{ github.run_id }}
        ARTIFACT_PREFIX: ${{ inputs.artifact_name_prefix }}
      shell: bash

    # By default, create a tarball of the current directory minus .git
    # otherwise it breaks GH Actions when restoring it
    - id: compress_all
      if: ${{ !inputs.files }}
      name: Create tarball for entire source
      run: tar --exclude-vcs -cvf "${ARTIFACT_NAME}".tar *
      env:
        ARTIFACT_NAME: ${{ steps.export_artifact_name.outputs.artifact_name }}
      shell: bash

    # If a list of files are given, then create a tarball for those only
    - id: compress_selected_files
      if: ${{ inputs.files }}
      name: Create tarball for selected files
      run: tar --exclude-vcs -cvf "${ARTIFACT_NAME}".tar "${FILES}"
      env:
        FILES: ${{ inputs.files }}
        ARTIFACT_NAME: ${{ steps.export_artifact_name.outputs.artifact_name }}
      shell: bash

    - id: integrity_hash
      name: Create and export integrity hash for tarball
      run: |
        HASH=$(sha256sum "${ARTIFACT_NAME}.tar" | awk '{print $1}')

        echo "integrity_hash=${HASH}" >> "$GITHUB_OUTPUT"
      env:
        ARTIFACT_NAME: ${{ steps.export_artifact_name.outputs.artifact_name }}
      shell: bash

    - name: Upload artifacts
      uses: actions/upload-artifact@65462800fd760344b1a7b4382951275a0abb4808 # v4.3.3
      with:
        if-no-files-found: error
        name: ${{ steps.export_artifact_name.outputs.artifact_name }}
        path: ${{ steps.export_artifact_name.outputs.artifact_name }}.tar
        retention-days: 1

    - name: Remove archive
      run: rm -f "${ARTEFACT_NAME}.tar"
      env:
        ARTIFACT_NAME: ${{ steps.export_artifact_name.outputs.artifact_name }}
      shell: bash