fix(woodpecker): use exit code 78 to skip builds instead of evaluate

- Replace evaluate when conditions with exit code 78

- Exit 78 in detect-changes step skips subsequent steps

- Woodpecker treats exit 78 as skip signal

.woodpecker.yml

@@ -52,18 +52,18 @@ steps:
           echo "✅ Service ${SERVICE} has code changes"
         fi
 
-        # Create marker file
+        # Create marker file and exit with appropriate code
         if [ "$SHARED_CHANGED" = "true" ] || [ "$SERVICE_CHANGED" = "true" ]; then
-          echo "SHOULD_BUILD=true" > .build-${SERVICE}
+          echo "SHOULD_BUILD=true" >> ${CI_ENV}
           echo "🚀 Will build ${SERVICE}"
+          exit 0
         else
-          echo "SHOULD_BUILD=false" > .build-${SERVICE}
+          echo "SHOULD_BUILD=false" >> ${CI_ENV}
           echo "⏭️ Skipping ${SERVICE} - no changes detected"
+          # Exit with code 78 to skip subsequent steps for this service
+          exit 78
         fi
 
-        # Export for other steps
-        cat .build-${SERVICE} >> ${CI_ENV}
-
   - name: build
     image: woodpeckerci/plugin-docker-buildx:5.0.0
     settings:
@@ -82,8 +82,6 @@ steps:
       password:
         from_secret: GHCR_TOKEN
       platforms: linux/amd64
-    when:
-      - evaluate: 'env.SHOULD_BUILD == "true"'
 
   - name: deploy
     image: bitnami/kubectl:latest
@@ -95,12 +93,6 @@ steps:
         #!/bin/bash
         set -e
 
-        # Check if we should deploy
-        if [ "${SHOULD_BUILD}" != "true" ]; then
-          echo "⏭️ Skipping deployment for ${SERVICE} - no changes"
-          exit 0
-        fi
-
         # Setup kubeconfig
         mkdir -p ~/.kube
         echo "$KUBE_CONFIG" | base64 -d > ~/.kube/config
@@ -123,16 +115,13 @@ steps:
 
         # Show deployment status
         kubectl get deployment/nxtgauge-rust-${DEPLOYMENT_NAME} -n ${NAMESPACE}
-    when:
-      - evaluate: 'env.SHOULD_BUILD == "true"'
 
   - name: notify-success
     image: alpine:latest
     commands:
       - echo "✅ Pipeline completed successfully for ${SERVICE}"
     when:
-      - evaluate: 'env.SHOULD_BUILD == "true"'
-      - status: success
+      status: success
 
   - name: notify-failure
     image: alpine:latest
@@ -140,5 +129,4 @@ steps:
       - echo "❌ Pipeline failed for ${SERVICE}"
       - echo "Check logs for details"
     when:
-      - evaluate: 'env.SHOULD_BUILD == "true"'
-      - status: failure
+      status: failure