fix Build and Push Tag github action bugs (#61)

Author: MmahdiM79

.github/workflows/build_and_push_python_codes.yml

@@ -21,6 +21,7 @@ jobs:
         uses: actions/checkout@v2
         with:
           ref: ${{ github.ref }}
+          fetch-depth: 0
 
       - name: Install dependencies
         run: |
@@ -46,16 +47,28 @@ jobs:
 
       - name: Commit changes
         run: |
-          bash -c "if [[ ${{ github.ref }} == 'refs/tags/'* ]]; then export TAG_NAME=${{ github.ref }}; fi"
-          echo "Tag name: $TAG_NAME"
-          echo "payload: ${{ github.event.client_payload.tag_name }}"
+          if [[ "${{ github.ref }}" == refs/tags/* ]]; then
+            TAG_NAME="${GITHUB_REF#refs/tags/}"
+            echo "Tag name: $TAG_NAME"
+            echo "payload: ${{ github.event.client_payload.tag_name }}"
+            echo "TAG_NAME=$TAG_NAME" >> $GITHUB_ENV
+          fi
+          LAST_COMMIT_MESSAGE=$(git log -1 --pretty=format:'%s')
           cd destination-repo
-          git config user.email "m.mahdi.m79@gmail.com"
-          git config user.name "Mohammad Mahdi Malmasi"
+          LAST_GIT_COMMIT_NAME=$(git log -1 --pretty=format:'%an')
+          LAST_GIT_COMMIT_EMAIL=$(git log -1 --pretty=format:'%ae')
+          git config user.name "$LAST_GIT_COMMIT_NAME"
+          git config user.email "$LAST_GIT_COMMIT_EMAIL"
           git add .
-          git commit -m "Update for tag: $TAG_NAME"
-          git tag $TAG_NAME
-          git push --tags
-          git push origin master
+          if [ -z "$(git status --porcelain)" ]; then 
+            echo "No changes to commit. push only new tag."
+            git tag $TAG_NAME
+            git push --follow-tags
+          else
+            git commit -m "$TAG_NAME | $LAST_COMMIT_MESSAGE"
+            git tag "$TAG_NAME"
+            git push --follow-tags
+            git push origin master
+          fi
         env:
           TAG_NAME: ${{ github.event.client_payload.tag_name }}