CODEWITHSUNDEEP
jenkinsjenkins-pipelinejenkins-groovy
peterc
peterc

Reputation: 7843

Jenkins - how to set an XML attribute and then write back to an XML file

Following on from my last post here, where I was shown how to read an XML attribute, my last task is now to set the attribute, e.g. I'll be incrementing the read attribute and then writing back.

So, again I have the following XML file:

 <?xml version='1.0' encoding='utf-8'?>
<widget android-versionCode="16" id="com.mycomp.myapp" ios-CFBundleVersion="15" version="1.3.0.b4" windows-packageVersion="1.2.6.0" xmlns="http://www.w3.org/ns/widgets" xmlns:cdv="http://cordova.apache.org/ns/1.0">
    <name>My App</name>
    <description>My app description</description>
    <author>mycom.com.au</author>

And I learnt that the following, as per the help did not work:

def xml = readFile "${env.WORKSPACE}/config.xml"
def rootNode = new XmlParser().parseText(xml)
def version = rootNode.@version

but the following would:

def version = rootNode.attributes()['version']

I now seem to have the same problem writing the attribute back.

Following this post I tried the following to set the attribute:

 def filePath = "${env.WORKSPACE}/config.xml"
 def xml = readFile filePath
 def rootNode = new XmlParser().parseText(xml)         
 rootNode.@version = "12345"         
 def writer = new FileWriter(filePath)
 new XmlNodePrinter(new PrintWriter(writer)).print(rootNode)

But I get a similar error to when I was trying to read the attribute:

org.jenkinsci.plugins.scriptsecurity.sandbox.RejectedAccessException: No such field found: field groovy.util.Node version
at org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.SandboxInterceptor.unclassifiedField(SandboxInterceptor.java:425)
at org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.SandboxInterceptor.onSetAttribute(SandboxInterceptor.java:447)
at org.kohsuke.groovy.sandbox.impl.Checker$9.call(Checker.java:405)
at org.kohsuke.groovy.sandbox.impl.Checker.checkedSetAttribute(Checker.java:411)

I did try this in Groovy playground, and it did seem to work, however not here in Jenkins.

So, it looks once again the .@version syntax is not working, and I just cannot fins an alternative call (like there was to get the attribute) to set the attribute.

How can I do this?

Upvotes: 0

Views: 1735

Answers (1)

dge
dge

Reputation: 3075

After some more testing i found out, we can simply use the @ selector inside the [] access (Edit: Its called map notation), seems the script sandbox can handle this. It translates in getAt() and putAt() under the hood which jenkins will allow to be approved.

node() {
    def xml = readFile "${env.WORKSPACE}/config.xml"
    def rootNode = new XmlParser().parseText(xml)
    print rootNode['@version']
    rootNode['@version'] = 123
    print rootNode['@version']
}

Result

Running on Jenkins in /var/jenkins_home/workspace/xmltest
[Pipeline] {
[Pipeline] readFile
[Pipeline] echo
1.3.0.b4
[Pipeline] echo
123
[Pipeline] }
[Pipeline] // node
[Pipeline] End of Pipeline
Finished: SUCCESS

Upvotes: 2

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