Feature Request: --recursive option to sort variables and outputs files recursively

[GeorgeDavis-TriumphTech]

Hey @AlexNabokikh!,

This is a great little tool. I would love to use a --recursive option in the tool to allow to tfsort the directory, parsing variables.tf and outputs.tf recursively inside directories, from the parent directory.

[jamesgeddes]

The following GitHub Actions workflow would achieve this

name: Sort Terraform Variables

on:
  push:
    paths:
      - "terraform/**" # Assuming that your Terraform is in the terraform directory
  workflow_dispatch:

jobs:
  tfsort:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3
        with:
          fetch-depth: 0 # Ensure full history for commits

      - name: Install tfsort
        run: |
          curl -sLo tfsort.tar.gz https://github.com/AlexNabokikh/tfsort/releases/download/v0.2.4/tfsort_0.2.4_linux_amd64.tar.gz
          tar -xzf tfsort.tar.gz -C /usr/local/bin
          chmod +x /usr/local/bin/tfsort

      - name: Find and Sort Terraform Variable Files
        run: |
          # Find all `variables.tf` files and sort them
          find terraform -type f -name "variables.tf" -exec tfsort {} \;

      - name: Commit and Push Changes
        if: ${{ success() }}
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add terraform/**/variables.tf
          git commit -m "chore: sort variables.tf using tfsort"
          git push

The key line here is

find terraform -type f -name "variables.tf" -exec tfsort {} \;

This uses find to find all the variables.tf files and run tfsort on them.