Jenkins Can comments be added to a Jenkinsfile

Question

Are comments possible in a Jenkinsfile  If so  what s the syntax   I am using the declarative pipeline syntax   I want to comment out the  post  section below until my SMTP server is working   pipeline      agent   label  docker-build-slave       environment       IMAGE    registry gitlab com XXXXX bible-server      DOCKER REGISTRY CREDENTIALS   credentials  DOCKER REGISTRY CREDENTIALS          options       timeout 10         stages        stage  Test           steps           sh  yarn          sh  npm test                     stage  Build           when           branch    master                steps           sh  docker login -u   DOCKER REGISTRY CREDENTIALS USR  -p   DOCKER REGISTRY CREDENTIALS PSW  registry gitlab com          sh  docker build -t   IMAGE    BRANCH NAME             sh  docker push   IMAGE    BRANCH NAME                      stage  Deploy           when           branch    master                steps           echo  Deploying                          post       success         mail to   XXXXX gmail com   subject  SUCCESS    currentBuild fullDisplayName    body   Yay  we passed             failure         mail to   XXXXX gmail com   subject  FAILURE    currentBuild fullDisplayName    body   Boo  we failed

User · Accepted Answer

The Jenkinsfile is written in groovy which uses the Java  and C  form of comments      this    is a    multi-line comment        this is a single line comment

User · Answer

The official Jenkins documentation only mentions single line commands like the following      Declarative      and  see   pipeline          insert Declarative Pipeline here        The syntax of the Jenkinsfile is based on Groovy so it is also possible to use groovy syntax for comments  Quote      a standalone multiline comment    spanning two lines    println  hello     a multiline comment starting                    at the end of a statement    println 1    one      2    two      or         such a nice comment

User · Answer

Comments work fine in any of the usual Java Groovy forms  but you can t currently use groovydoc to process your Jenkinsfile  s    First  groovydoc chokes on files without extensions with the wonderful error  java lang reflect InvocationTargetException     at sun reflect NativeMethodAccessorImpl invoke0 Native Method      at sun reflect NativeMethodAccessorImpl invoke NativeMethodAccessorImpl java 62      at sun reflect DelegatingMethodAccessorImpl invoke DelegatingMethodAccessorImpl java 43      at java lang reflect Method invoke Method java 498      at org codehaus groovy tools GroovyStarter rootLoader GroovyStarter java 109      at org codehaus groovy tools GroovyStarter main GroovyStarter java 131  Caused by  java lang StringIndexOutOfBoundsException  String index out of range  -1     at java lang String substring String java 1967      at org codehaus groovy tools groovydoc SimpleGroovyClassDocAssembler  lt init gt  SimpleGroovyClassDocAssembler java 67      at org codehaus groovy tools groovydoc GroovyRootDocBuilder parseGroovy GroovyRootDocBuilder java 131      at org codehaus groovy tools groovydoc GroovyRootDocBuilder getClassDocsFromSingleSource GroovyRootDocBuilder java 83      at org codehaus groovy tools groovydoc GroovyRootDocBuilder processFile GroovyRootDocBuilder java 213      at org codehaus groovy tools groovydoc GroovyRootDocBuilder buildTree GroovyRootDocBuilder java 168      at org codehaus groovy tools groovydoc GroovyDocTool add GroovyDocTool java 82      at org codehaus groovy tools groovydoc GroovyDocTool add call Unknown Source      at org codehaus groovy runtime callsite CallSiteArray defaultCall CallSiteArray java 48      at org codehaus groovy runtime callsite AbstractCallSite call AbstractCallSite java 113      at org codehaus groovy runtime callsite AbstractCallSite call AbstractCallSite java 125      at org codehaus groovy tools groovydoc Main execute Main groovy 214      at org codehaus groovy tools groovydoc Main main Main groovy 180          6 more       and second  as far as I can tell Javadoc-style commments at the start of a groovy script are ignored  So even if you copy rename your Jenkinsfile to Jenkinsfile groovy  you won t get much useful output   I want to be able to use a          Document my Jenkinsfile s overall purpose here       comment at the start of my Jenkinsfile  No such luck  yet    groovydoc will process classes and methods defined in your Jenkinsfile if you pass -private to the command  though

User · Answer

You can use block         or single line comment      for each line  You should use     in sh command     Block comment   x000D   x000D       x000D  post   x000D      success   x000D        mail to   XXXXX gmail com    x000D        subject  SUCCESS    currentBuild fullDisplayName     x000D        body   Yay  we passed   x000D        x000D      failure   x000D        mail to   XXXXX gmail com    x000D        subject  FAILURE    currentBuild fullDisplayName     x000D        body   Boo  we failed   x000D        x000D      x000D     x000D   x000D   x000D    Single Line   x000D   x000D     post   x000D         success   x000D           mail to   XXXXX gmail com    x000D           subject  SUCCESS    currentBuild fullDisplayName     x000D           body   Yay  we passed   x000D           x000D         failure   x000D           mail to   XXXXX gmail com    x000D           subject  FAILURE    currentBuild fullDisplayName     x000D           body   Boo  we failed   x000D           x000D       x000D   x000D   x000D    Comment in  sh  command   x000D   x000D          stage  Unit Test     x000D              steps   x000D                  ansiColor  xterm    x000D                    sh     x000D                    npm test x000D                      this is a comment in sh x000D                        x000D                    x000D                x000D            x000D   x000D   x000D

[jenkins] Jenkins: Can comments be added to a Jenkinsfile?

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