.github/workflows/shfmt.yml

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name: "shfmt: shell script code style"

on:
  push:
  pull_request:

jobs:
  shfmt:
    name: shfmt
    runs-on: ubuntu-latest
    env:
      SHFMT_VERSION: '3.6.0'
      # --indent 2: 2 spaces of indentation
      # --case-indent: switch cases will be indented
      # --diff: error with a diff when the formatting differs
      SHFMT_OPTS: '--indent 2 --case-indent --diff'
    steps:
      - uses: actions/checkout@v3

      - name: download
        shell: bash
        run: |
          mkdir -p "$HOME/.local/apps/shfmt_v${SHFMT_VERSION}_linux_amd64"
          curl --silent --fail --show-error --retry 2 --retry-delay 1 --connect-timeout 5 --location --url "https://github.com/mvdan/sh/releases/download/v${SHFMT_VERSION}/shfmt_v${SHFMT_VERSION}_linux_amd64" -o "$HOME/.local/apps/shfmt_v${SHFMT_VERSION}_linux_amd64/shfmt"
          chmod +x "$HOME/.local/apps/shfmt_v${SHFMT_VERSION}_linux_amd64/shfmt"
          echo "$HOME/.local/apps/shfmt_v${SHFMT_VERSION}_linux_amd64" >> $GITHUB_PATH

      - name: check
        shell: bash
        run: |
          readarray -t SCRIPT_FILES < <(shfmt -f "$GITHUB_WORKSPACE/maven-wrapper-distribution/src/resources")
          shfmt ${SHFMT_OPTS} "${SCRIPT_FILES[@]}"