GitHub Actions: fix set up eve version step to work with no eve_img

Signed-off-by: Pavel Abramov <uncle.decart@gmail.com>

.github/actions/setup-environment/action.yml

@@ -50,13 +50,17 @@ runs:
       shell: bash
       working-directory: "./eden"
     - name: Setup eve version
-      if: ${{ inputs.eve_image != '' }} and contains(${{ inputs.eve_image }}, ":" )
       run: |
         image=${{ inputs.eve_image }}
-        eve_pr_registry=$(echo "$image" |  cut -d ':' -f 1)
-        eve_pr=$(echo "$image" |  cut -d ':' -f 2 | cut -d "-" -f1)
-        ./eden config set default --key=eve.registry --value="$eve_pr_registry"
-        ./eden config set default --key=eve.tag --value="$eve_pr"
+        if [[ -n "$image" && "$image" == *:* ]]; then
+          echo "Setting up eve image ${image}"
+          eve_pr_registry=$(echo "$image" |  cut -d ':' -f 1)
+          eve_pr=$(echo "$image" |  cut -d ':' -f 2 | cut -d "-" -f1)
+          ./eden config set default --key=eve.registry --value="$eve_pr_registry"
+          ./eden config set default --key=eve.tag --value="$eve_pr"
+        else
+          echo "Skipping setting up eve image ${image}"
+        fi
       shell: bash
       working-directory: "./eden"
     - name: Setup ext4