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copied!<h1>Jenkins 1.x</h1> <p>The following groovy snippet should pass the version (as you've already supplied), and store it in the job's variables as 'miniVersion'.</p> <pre><code>import hudson.model.* def env = System.getenv() def version = env['currentversion'] def m = version =~/\d{1,2}/ def minVerVal = m[0]+"."+m[1] def pa = new ParametersAction([ new StringParameterValue("miniVersion", minVerVal) ]) // add variable to current job Thread.currentThread().executable.addAction(pa) </code></pre> <p>The variable will then be accessible from other build steps. e.g.</p> <pre><code>echo miniVersion=%miniVersion% </code></pre> <p>Outputs:</p> <pre><code>miniVersion=12.34 </code></pre> <p>I believe you'll need to use the "System Groovy Script" (on the Master node only) as opposed to the "Groovy Plugin" - <a href="https://wiki.jenkins-ci.org/display/JENKINS/Groovy+plugin#Groovyplugin-GroovyScriptvsSystemGroovyScript">https://wiki.jenkins-ci.org/display/JENKINS/Groovy+plugin#Groovyplugin-GroovyScriptvsSystemGroovyScript</a></p> <h1>Jenkins 2.x</h1> <p>I believe the previous (<strong>Jenkins 1.x</strong>) behaviour stopped working because of <a href="https://wiki.jenkins-ci.org/display/SECURITY/Jenkins+Security+Advisory+2016-05-11">this Security Advisory</a>...</p> <h3>Solution (paraphrased from the Security Advisory)</h3> <p>It's possible to restore the previous behaviour by setting the system property <code>hudson.model.ParametersAction.keepUndefinedParameters</code> to <code>true</code>. <strong>This is potentially very unsafe</strong> and intended as a short-term workaround only.</p> <pre><code>java -Dhudson.model.ParametersAction.keepUndefinedParameters=true -jar jenkins.war </code></pre> <p>To allow specific, known safe parameter names to be passed to builds, set the system property <code>hudson.model.ParametersAction.safeParameters</code> to a comma-separated list of safe parameter names. </p> <p><strong>e.g.</strong></p> <pre><code>java -Dhudson.model.ParametersAction.safeParameters=miniVersion,FOO,BAR -jar jenkins.war </code></pre>

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