action.yml

name: Get Repo Files
description: Get files from a repo, without checking out everything
author: StirlingLabs

inputs:
  files:
    description: List of files to download, 1 per line
    type: string
    required: false
  files_json:
    description: "List of files to download and their new names in json format, e.g. {'repo_name': 'local_name', ...}"
    type: string
    required: false

outputs:
  downloaded:
    description: List of files downloaded by the workflow, newline-delimited
    value: ${{ steps.get.outputs.downloaded }}
  downloaded_json:
    description: JSON array of files downloaded by the workflow
    value: ${{ steps.get.outputs.downloaded_json }}

runs:
  using: composite
  steps:
    - name: Debug
      if: false
      shell: bash
      env:
        GITHUB_CONTEXT: ${{ toJSON(github) }}
      run: |
        echo "$GITHUB_CONTEXT"

    - name: No Input
      id: missing
      shell: bash
      if: inputs.files == '' && inputs.filesJson == ''
      run: |
        echo "No files to download"
        echo "result=No files to download" >> $GITHUB_OUTPUT
        exit 1

    - name: Get
      id: get
      env:
        repo: ${{ github.repository }}
        files: ${{ inputs.files }}
        files_json: ${{ inputs.files_json }}
        result: unknown
      shell: bash
      run: |
        main() {
          echo "# Downloads " >> "$GITHUB_SUMMARY"
          echo "| Source | Destination | Result |" >> "$GITHUB_SUMMARY"
          result="unknown"
          downloaded_list=()
          rawUrl="https://raw.githubusercontent.com/${repo}/${GITHUB_REF#refs/heads/}"
          echo "rawUrl=$rawUrl" >> "$GITHUB_OUTPUT"
          if [ "$files" != "" ] ; then
            for file in $files; do
              download "$file" "$file"
            done
          fi
          if [ "$files_json" != "" ] ; then
            echo "$files_json" | jq -r 'to_entries[] | [.key, .value] | @tsv' | while IFS=$'\t' read -r remote_name local_name; do
              download "$local_name" "$remote_name"
            done
          fi
          [[ "$result" == "unknown" ]] && result="success"
          downloaded=$(printf '%s\n' "${downloaded_list[@]}")
          echo "downloaded=$downloaded" >> "$GITHUB_OUTPUT"
          downloaded_json=$(printf '%s\n' "${downloaded_list[@]}" | jq -R . | jq -s .)
          echo "downloaded_json=$downloaded_json" >> "$GITHUB_OUTPUT"
        }
        download() {
          url="${rawUrl}/$2"
          echo -e "| [$2](${url}) | $1 | " >> "$GITHUB_SUMMARY"
          if wget --output-document "$1" "${url}" ; then
            echo "Received $1"
            echo -e "✅ |\n" >> "$GITHUB_SUMMARY"
            downloaded_list+=("$1")
          else
            result="failed"
            echo -e "❌ |\n" >> "$GITHUB_SUMMARY"
          fi
        }
        main "$@"
        [[ "$result" == "success" ]] && exit 0 || exit 1