many--prevent-wrong-file-names.yaml

name: Prevent capital file extensions
# Prevents uppercase file extensions. This makes sure that files always end in
# a lowercase file extension, making it easier to write workflows expecting a
# certain file type.

on:
  pull_request:
    types: [opened, synchronize, reopened]
    branches: [main, master, release, development]
    paths: [ "**/*.*" ]
  push:
    branches: [main, master, release, development]
    paths: [ "**/*.*" ]

jobs:

  check-all-files:
    name: Check all files
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4.3.0
      - name: Search for files violating naming convention
        run: |
          echo "Looking for files with capital extensions..."

          # skip .git, and vendor directories
          matches=$(find . \
            -name .git -prune -o \
            -path ./vendor -prune -o \
            -path ./.github/CODEOWNERS -prune -o \
            -path ./LICENSE -prune -o \
            -type f -print | grep -E '(.*/.*[[:space:]].*|.*\.[A-Z]+$)' || true)
          if [ -n "$matches" ]; then
            echo "ERROR: Found files That do not respect naming convention:"
            echo ""
            echo "$matches"
            echo ""
            echo "Please rename the files to only use lower case extensions and no spaces."
            exit 1
          else
            echo "All files respect naming convention."
          fi