check dependencies only in main branch (e.g. main, master, …)

Jenkinsfile

@@ -117,7 +117,7 @@ pipeline {
     stage ('Check Dependencies') {
       when {
         expression {
-          if (currentBuild.number > 1) {
+          if ((currentBuild.number > 1) && (env.BRANCH_NAME ==~ SNAPSHOT_BRANCH_REGEX)) {
             month_pre = new Date(currentBuild.previousBuild.rawBuild.getStartTimeInMillis())[Calendar.MONTH]
             echo month_pre.toString()
             month_now = new Date(currentBuild.rawBuild.getStartTimeInMillis())[Calendar.MONTH]

Jenkinsfile.template

@@ -221,7 +221,7 @@ pipeline {
     stage ('Encourage') {
       when {
         expression {
-          if (currentBuild.number > 1) {
+          if ((currentBuild.number > 1) && (env.BRANCH_NAME ==~ SNAPSHOT_BRANCH_REGEX)) {
             date_pre = new Date(currentBuild.previousBuild.rawBuild.getStartTimeInMillis()).clearTime()
             echo date_pre.format( 'yyyyMMdd' )
             date_now = new Date(currentBuild.rawBuild.getStartTimeInMillis()).clearTime()