jobs/BuildAll,Common: added time measurement for building targets

the nightly builds the target in a loop. To have directly a job
log with an overview about the consumed build times, the nightly
prints the measured time after each target build.

Signed-off-by: Marc Mattmüller <marc.mattmueller@netmodule.com>

jobs/Jenkinsfile_BuildAll

@@ -221,6 +221,7 @@ def runBuildJob(commonHelpers, buildTarget, buildBranch) {
 def buildMachine(commonHelpers, machine, buildBranch) {
   Boolean isMachineSuccessfullyBuilt = true
   println "BUILDING ${machine}"
+  commonHelpers.setupTimeMeasurement()
   // NOTE: this catchError statement is needed in case of an
   //       abort of the build job or similar failures
   catchError(buildResult: 'UNSTABLE', stageResult: 'FAILURE') {
@@ -235,6 +236,7 @@ def buildMachine(commonHelpers, machine, buildBranch) {
   if(!isMachineSuccessfullyBuilt) {
     println "Failed building properly machine ${machine}"
   }
+  commonHelpers.printMeasuredTimeToNow("building ${machine}")
   return isMachineSuccessfullyBuilt
 }
 //-----------------------------------------------------------------------------

jobs/Jenkinsfile_Common

@@ -100,6 +100,29 @@ def getNginxCredentialID() {
 }
 
 
+//-----------------------------------------------------------------------------
+def getCurrentUtcEpochTime() {
+  def currTimeUtc = sh(returnStdout: true, script: "bash -c \"date -u +%s\"").trim()
+  return currTimeUtc
+}
+//-----------------------------------------------------------------------------
+def setupTimeMeasurement() {
+  env.START_TIME = getCurrentUtcEpochTime()
+}
+//-----------------------------------------------------------------------------
+def getMeasuredTime() {
+  Integer t_now = Integer.parseInt(getCurrentUtcEpochTime())
+  Integer t_start = Integer.parseInt("${env.START_TIME}")
+  Integer timeDiffS = (t_now - t_start)
+  return timeDiffS
+}
+//-----------------------------------------------------------------------------
+def printMeasuredTimeToNow(timeDescriptor) {
+  measTimeS = getMeasuredTime()
+  println "Measured time for ${timeDescriptor} [s] = " + measTimeS
+}
+
+
 //-----------------------------------------------------------------------------
 def setupGlobalEnvironmentVariables(repoDir, machine) {
   env.MACHINE = "${machine}"