Try-catch block in Jenkins pipeline script

Question

I m trying to use the following code to execute builds  and in the end  execute post build actions when builds were successful  Still  I get a MultipleCompilationErrorsException  saying that my try block is Not a valid section definition  Please help  I tried a lot reorganize the block but can t seem to be able to solve the issue      usr bin env groovy  pipeline   agent any      try           stages              stage  Parallel 1                     steps                       parallel                           firstTask                                   build   DSL-Controll-Demo-Fibonacci-1                                                        secondTask                                   build   DSL-Controll-Demo-Fibonacci-2                                                                                                stage  Feature                     steps                           build   DSL-Controll-Demo-Fibonacci-5                            build   DSL-Controll-Demo-Fibonacci-6                                                stage  Parallel 2                     steps                      parallel                            thirdTask                                   build   DSL-Controll-Demo-Fibonacci-3                                                        forthTask                                   build   DSL-Controll-Demo-Fibonacci-4                                                                                                            catch all            currentBuild result    FAILURE                if currentBuild result     FAILURE             stages              stage  Post Build                     steps                       build  DSL-Controll-Demo-Fibonacci-7

User · Accepted Answer

You re using the declarative style of specifying your pipeline  so you must not use try catch blocks  which are for Scripted Pipelines   but the post section  See  https   jenkins io doc book pipeline syntax  post-conditions

User · Answer

try like this  no pun intended btw  script     try         sh  do your stuff      catch  Exception e          echo  Exception occurred      e toString         sh  Handle the exception          The key is to put try   catch in a script block in declarative pipeline syntax  Then it will work  This might be useful if you want to say continue pipeline execution despite failure  eg  test failed  still you need reports

User · Answer

This answer worked for me   pipeline     agent any   stages       stage  Run unit tests          steps           script             try               sh                      Run unit tests without capturing stdout or logs  generates cobetura reports               cd   python               nosetests3 --with-xcoverage --nocapture --with-xunit --nologcapture --cover-package application               cd                                  finally               junit  nosetests xml                                          stage   Speak           steps          echo  Hello  CONDITIONAL

User · Answer

try catch is scripted syntax  So any time you are using declarative syntax to use something from scripted in general you can do so by enclosing the scripted syntax in the scripts block in a declarative pipeline  So your try catch should go inside stage  gt steps  gt script  This holds true for any other scripted pipeline syntax you would like to use in a declarative pipeline as well

User · Answer

Look up the AbortException class for Jenkins   You should be able to use the methods to get back simple messages or stack traces   In a simple case  when making a call in a script block  as others have indicated   you can call getMessage   to get the string to echo to the user   Example   script           try               sh  sudo docker rmi frontend-test            catch  err                echo err getMessage               echo  Error detected  but we will continue                        continue with other code

[jenkins] Try-catch block in Jenkins pipeline script

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