Improve build steps

.github/workflows/build.yaml

@@ -11,7 +11,7 @@ jobs:
   test:
     # When running with act (https://github.com/nektos/act), these lines need to be appended with the ACT variable
     # to force each job to run
-    if: github.repository == 'adobe/buildrunner' #|| ${{ env.ACT }}
+    if: github.repository == 'adobe/buildrunner' && (github.ref != 'refs/heads/main' || (github.ref == 'refs/heads/main' && github.event.pull_request.merged != true)) #|| ${{ env.ACT }}
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
@@ -49,10 +49,12 @@ jobs:
         check_name: "Test Results ${{ matrix.python-version }}"
         github_retries: 10
         secondary_rate_limit_wait_seconds: 60.0
-  tag-commit:
-    if: github.repository == 'adobe/buildrunner' && github.event_name == 'push' && github.ref == 'refs/heads/main'
+  get-version:
+    if: github.repository == 'adobe/buildrunner'
     runs-on: ubuntu-latest
     needs: test
+    outputs:
+      current-version: ${{ steps.version-number.outputs.CURRENT_VERSION }}
     steps:
       - uses: actions/checkout@v2
         with:
@@ -64,12 +66,22 @@ jobs:
           pip install -r requirements.txt
       - name: Write version file
         run: python scripts/write-version.py
-      - name: Get and set version in env
-        run: echo "CURRENT_VERSION=$( python -c 'from buildrunner.version import __version__; print(__version__)' )" >> $GITHUB_ENV
+      - name: Get current version
+        id: version-number
+        run: echo "CURRENT_VERSION=$( python -c 'from buildrunner.version import __version__; print(__version__)' )" >> $GITHUB_OUTPUT
       - name: Print current version
-        run: echo CURRENT_VERSION ${{ env.CURRENT_VERSION }}
+        run: echo CURRENT_VERSION ${{ steps.version-number.outputs.CURRENT_VERSION }}
+  tag-commit:
+    if: github.repository == 'adobe/buildrunner' && github.event_name == 'push' && github.ref == 'refs/heads/main'
+    runs-on: ubuntu-latest
+    needs: [test, get-version]
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          # Fetch all history instead of the latest commit
+          fetch-depth: 0
       - name: Tag commit
-        run: git tag ${{ env.CURRENT_VERSION }} && git push --tags
+        run: git tag ${{ needs.get-version.outputs.current-version }} && git push --tags
   publish-pypi:
     if: github.repository == 'adobe/buildrunner'
     runs-on: ubuntu-latest
@@ -83,11 +95,14 @@ jobs:
       uses: actions/setup-python@v2
       with:
         python-version: 3.9
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -r requirements.txt
+        pip install wheel build
     - name: Remove version file
       # This is just in case something else created it, destroy it to get a fresh version
       run: rm -f buildrunner/version.py
-    - name: Install wheel
-      run: pip install wheel build
     - name: Write version file
       run: python scripts/write-version.py
     - name: Build
@@ -104,26 +119,20 @@ jobs:
   publish-docker:
     if: github.repository == 'adobe/buildrunner'
     runs-on: ubuntu-latest
-    needs: test
+    needs: [test, get-version]
     steps:
     - uses: actions/checkout@v2
       with:
         # Fetch all history instead of the latest commit
         fetch-depth: 0
-    - name: Write version file
-      run: python scripts/write-version.py
-    - name: Get and set version in env
-      run: echo "CURRENT_VERSION=$( python -c 'from buildrunner.version import __version__; print(__version__)' )" >> $GITHUB_ENV
-    - name: Print current version
-      run: echo CURRENT_VERSION ${{ env.CURRENT_VERSION }}
     - name: Docker Tags
       id: docker_tags
       uses: docker/metadata-action@v3
       with:
         images: ghcr.io/adobe/buildrunner
         tags: |
           latest
-          ${{ env.CURRENT_VERSION }}
+          ${{ needs.get-version.outputs.current-version }}
     - name: Set up QEMU
       uses: docker/setup-qemu-action@v1
       with: