fix(Central Build): Fix handling legacy stage name for Jenkins pipelines (#5151)

* add handle stageName

* some improvements

---------

Co-authored-by: maxcask <[email protected]>
Co-authored-by: Googlom <[email protected]>
Co-authored-by: Googlom <[email protected]>

Author: 3 people

pkg/config/evaluation.go

@@ -8,6 +8,7 @@ import (
 
 	"github.com/pkg/errors"
 
+	"github.com/SAP/jenkins-library/pkg/log"
 	"github.com/SAP/jenkins-library/pkg/orchestrator"
 	"github.com/SAP/jenkins-library/pkg/piperutils"
 )
@@ -39,6 +40,9 @@ func (r *RunConfigV1) evaluateConditionsV1(config *Config, utils piperutils.File
 		// to also consider using the technical name.
 		stageName := stage.DisplayName
 
+		// Central Build in Jenkins was renamed to Build.
+		handleLegacyStageNaming(config, currentOrchestrator, stageName)
+
 		// Check #1: Apply explicit activation/deactivation from config file (if any)
 		// and then evaluate stepActive conditions
 		runStep := make(map[string]bool, len(stage.Steps))
@@ -305,3 +309,23 @@ func anyOtherStepIsActive(targetStep string, runSteps map[string]bool) bool {
 
 	return false
 }
+
+func handleLegacyStageNaming(c *Config, orchestrator, stageName string) {
+	if orchestrator == "Jenkins" && stageName == "Build" {
+		_, buildExists := c.Stages["Build"]
+		centralBuildStageConfig, centralBuildExists := c.Stages["Central Build"]
+		if buildExists && centralBuildExists {
+			log.Entry().Warnf("You have 2 entries for build stage in config.yml. " +
+				"Parameters defined under 'Central Build' are ignored. " +
+				"Please use only 'Build'")
+			return
+		}
+
+		if centralBuildExists {
+			c.Stages["Build"] = centralBuildStageConfig
+			log.Entry().Warnf("You are using 'Central Build' stage in config.yml. " +
+				"Please move parameters under the 'Build' stage, " +
+				"since 'Central Build' will be removed in future releases")
+		}
+	}
+}