release.yml

name: Release

permissions:
  contents: write

on:
  push:
    branches:
      - "main"
    paths:
      - "**/Cargo.toml"

env:
  CARGO_TERM_COLOR: always

jobs:
  release:
    name: "Create New Release"
    runs-on: "ubuntu-latest"
    
    outputs:
      version: ${{ steps.pkg.outputs.VERSION }}
      exists: ${{ steps.check_tag.outputs.EXISTS }}

    steps:
      - name: "Check out the repo"
        uses: actions/checkout@v3
        with:
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: "Get the version number from this push"
        id: pkg
        shell: "bash"
        run: |
          VERSION=$(awk -F ' = ' '/^\[package\]/ { in_package = 1 } /^\[/ && !/^\[package\]/ { in_package = 0 } in_package && $1 ~ /version/ { gsub(/["]/, "", $2); printf("%s",$2); exit }' Cargo.toml)
          echo VERSION=$VERSION >> $GITHUB_OUTPUT

      - name: Check if this is a new version
        id: check_tag
        shell: bash
        run: |
          output=$(curl -s https://api.github.com/repos/$GITHUB_REPOSITORY/git/ref/tags/${{ steps.pkg.outputs.VERSION }})
          message=$(echo "$output" | awk -F': ' '/"message":/ { gsub(/"/, "", $2); print $2; }' | tr -d ',')
          echo EXISTS=$([ "$message" = "Not Found" ] && echo "false" || echo "true") >> $GITHUB_OUTPUT
          echo $GITHUB_OUTPUT
      
      - name: Create a release
        if: steps.check_tag.outputs.EXISTS == 'false'
        uses: ncipollo/release-action@v1.12.0
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag: v${{ steps.pkg.outputs.VERSION }}
          name: v${{ steps.pkg.outputs.VERSION }}
          draft: false
          prerelease: false