gitnu 0.7.2

gitnu indexes your git status so you can use numbers instead of filenames.
Documentation 
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name: ci

on:
  push:
    branches:
      - main
      - dev
      - major
      - minor
      - patch

jobs:
  pre:
    name: Preprocessing
    runs-on: ubuntu-latest
    outputs:
      matrix: ${{ steps.matrix.outputs.matrix }}
      increment: ${{ steps.increment.outputs.increment }}
    steps:
      - uses: actions/checkout@v3
      - run: git fetch --tags

      # Sets the increment: how much to push the version number
      - run: |
          case ${{ github.ref_name }} in
            main) echo "increment=patch" >> $GITHUB_OUTPUT ;;
            dev) echo "increment=prerelease" >> $GITHUB_OUTPUT ;;
            *) echo "increment=${{ github.ref_name }}" >> $GITHUB_OUTPUT;;
          esac
        id: increment

      # Obtains the matrix strategy from `./matrix.json` to use for
      # building, testing, and releasing artifacts on GitHub Releases
      - run: echo "matrix=$(jq -rc . .github/workflows/matrix.json)" >> $GITHUB_OUTPUT
        id: matrix

      - name: Enumerate outputs
        run: |
          echo 'increment: ${{ steps.increment.outputs.increment }}'
          echo 'matrix:    ${{ steps.version.outputs.version }}'

  build-and-test:
    name: Build & Test
    needs: [pre]
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix: ${{ fromJson(needs.pre.outputs.matrix) }}

    steps:
      - uses: actions/checkout@v3
      - name: Run tests
        run: |
          git config --global user.name 'github-actions[bot]'
          git config --global user.email 'github-actions[bot]@users.noreply.github.com'
          cargo build
          cargo test --lib

  inc:
    name: Increment version
    needs: [pre, build-and-test]
    runs-on: ubuntu-latest
    outputs:
      version: ${{ steps.semver.outputs.version }}
    steps:
      - uses: actions/checkout@v3
      - uses: nguyenvukhang/semver-increment@v1
        id: semver
        with:
          increment: ${{ needs.pre.outputs.increment }}
          identifier: "alpha"
          version-file: "Cargo.toml"
          version-regex: '^version = "(.*)"'

      - name: Commit and push
        run: |
          git config --global user.name 'github-actions[bot]'
          git config --global user.email 'github-actions[bot]@users.noreply.github.com'

          cargo build
          git add Cargo.toml Cargo.lock
          git commit -m 'ver: bump to ${{ steps.semver.outputs.version }}'
          git push

      - name: Tag and push
        if: ${{ needs.pre.outputs.increment != 'prerelease' }}
        run: |
          git tag v${{ steps.semver.outputs.version }}
          git push --tag

  # publish patch-level updates and above only
  publish-crates-io:
    name: Publish to Crates.io
    if: needs.pre.outputs.increment != 'prerelease'
    needs: [pre, inc]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
        with:
          ref: v${{ needs.inc.outputs.version }}

      - uses: katyo/publish-crates@v2
        with:
          registry-token: ${{ secrets.CARGO_REGISTRY_TOKEN }}

  release-github:
    name: Release on GitHub
    needs: [pre, inc]
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix: ${{ fromJson(needs.pre.outputs.matrix) }}

    steps:
      - uses: actions/checkout@v3
        with:
          ref: ${{ needs.pre.outputs.increment != 'prerelease' && format('v{0}', needs.inc.outputs.version) || github.ref }}

      - run: |
          TARGET_DIR=./target/${{ matrix.target }}
          echo "TARGET_DIR=$TARGET_DIR" >> $GITHUB_ENV
          echo "BINFILE=$TARGET_DIR/release/git-nu" >> $GITHUB_ENV

      - name: Build binary
        run: cargo build --release
        env:
          CARGO_BUILD_TARGET_DIR: ${{ env.TARGET_DIR }}

      - name: Strip release binary
        if: >-
          (matrix.build == 'linux' || matrix.build == 'linux-arm' || matrix.build == 'macos')
        run: strip ${{ env.BINFILE }}

      - name: Build archive
        run: |
          STAGING="git-nu-v${{ needs.inc.outputs.version }}-${{ matrix.target }}"
          mkdir -p "$STAGING"
          cp ${{ env.BINFILE }} "$STAGING"
          tar czf "$STAGING.tar.gz" "$STAGING"
          echo "ASSET=$STAGING.tar.gz" >> $GITHUB_ENV

      - name: Release
        uses: softprops/action-gh-release@v1
        if: ${{ needs.pre.outputs.increment != 'prerelease' }}
        with:
          tag_name: v${{ needs.inc.outputs.version }}
          files: ${{ env.ASSET }}