rework version detection

.github/workflows/build.yml

@@ -16,6 +16,7 @@ jobs:
     outputs:
       is_release: ${{ steps.versions.outputs.is_release }}
       is_prerelease: ${{ steps.versions.outputs.is_prerelease }}
+      # this will be v1.2.3 for on-tag builds and v1.2.3-numberofcommits-sha for off-tag builds
       version: ${{ steps.versions.outputs.version }}
       go_version: 1.18.x
       node_version: 16.14.0
@@ -27,21 +28,21 @@ jobs:
       - name: get version information
         id: versions
         run: |
+          STABLE_TAG=$(git describe --tags --exclude '*-*')
           TAG=$(git describe --tags)
-          if [ "${{ github.ref }}" = "refs/tags/$TAG" ]; then
+          if [ "${{ github.ref }}" = "refs/tags/$STABLE_TAG" ]; then
             echo "is_release=true" >> $GITHUB_OUTPUT
-            if [[ $TAG =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
             echo "is_prerelease=false" >> $GITHUB_OUTPUT
-            else
+            echo "version=$STABLE_TAG" >> $GITHUB_OUTPUT
+          elif [ "${{ github.ref }}" = "refs/tags/$TAG" ]; then
+            echo "is_release=true" >> $GITHUB_OUTPUT
             echo "is_prerelease=true" >> $GITHUB_OUTPUT
-            fi
+            echo "version=$TAG" >> $GITHUB_OUTPUT
           else
             echo "is_release=false" >> $GITHUB_OUTPUT
             echo "is_prerelease=false" >> $GITHUB_OUTPUT
-            TAG=$(git describe --tags --exclude '*-*')
+            echo "version=$STABLE_TAG" >> $GITHUB_OUTPUT
           fi
-          # this will be v1.2.3 for on-tag builds and v1.2.3-numberofcommits-sha for off-tag builds
-          echo "version=$TAG" >> $GITHUB_OUTPUT
         shell: bash
       - name: show data results
         run: |