name: CI

on:
  push:
    branches: [master, main]
  pull_request:

permissions:
  contents: read

jobs:
  shell:
    name: Lint & self-test
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: ShellCheck (POSIX/bash scripts + git hooks)
        run: |
          shellcheck --version
          shellcheck scripts/*.sh \
            git-templates/hooks/pre-commit \
            git-templates/hooks/post-merge \
            git-templates/hooks/post-commit

      - name: Install fish
        run: |
          sudo apt-get update -qq
          sudo apt-get install -y -qq fish

      - name: Fish syntax check
        run: |
          for f in scripts/*.fish; do
            echo "fish -n $f"
            fish -n "$f"
          done

      - name: Self-test (bootstrap dry-run, sh + fish)
        run: sh scripts/selftest.sh