add label workflow

.github/workflows/git_tag.yml

@@ -1,4 +1,4 @@
-name: Build image
+name: Determine and create tag
 
 on:
   pull_request:
@@ -8,18 +8,46 @@ env:
   IMAGE_NAME: ${{ github.repository }}
 
 jobs:
-  build-image:
+  determine-create-tag:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+
       - name: Get latest tag
+        id: get-latest-tag
         shell: bash
         run: |
-          latest=$(git describe --abbrev=0 --tags || echo "v0.0.0")
-          echo "LATEST_TAG=latest" >> "$GITHUB_OUTPUT"
+          tag=$(git describe --abbrev=0 --tags)
+          if [ "$?" -ne "0" ]
+          then
+            tag="v0.0.0"
+          fi
+          echo "tag=$latest" >> "$GITHUB_OUTPUT"
+
       - name: Get PR labels
         id: pr-labels
         uses: joerick/[email protected]
-      - if: contains(steps.pr-labels.outputs.labels, 'new patch release')
-        run: echo '### New version 🚀\n When merging, version xyz will be created' >> $GITHUB_STEP_SUMMARY
+
+      - name: Get semver bump level
+        id: get-semver-level
+        run: |
+          level="patch"
+          all_labels=(${{ steps.pr-labels.outputs.labels }})
+          if [[ ${all_labels[@]} =~ "new minor release" ]]
+          then
+            level="minor"
+          elif [[ ${all_labels[@]} =~ "new major release" ]]
+          then
+            level="major"
+          fi
+          echo "level=$level" >> "$GITHUB_OUTPUT"
+
+      - uses: actions-ecosystem/action-bump-semver@v1
+        id: bump-semver
+        with:
+          current_version: ${{ steps.get-latest-tag.outputs.tag }}
+          level: ${{ steps.get-semver-level.outputs.level }}
+
+      - name: Print summary
+        run: echo '### New version 🚀\n When merging, version ${{ steps.bump-semver.outputs.new_version }} will be created' >> $GITHUB_STEP_SUMMARY