[jira] [Created] (MNG-6962) jvm.config via command line flags

["John Patrick (Jira)" <ji...@apache.org>]

John Patrick created MNG-6962:
---------------------------------

             Summary: jvm.config via command line flags
                 Key: MNG-6962
                 URL: https://issues.apache.org/jira/browse/MNG-6962
             Project: Maven
          Issue Type: Improvement
          Components: core
            Reporter: John Patrick


Command line flag to provide location of .mvn/jvm.config

On Jenkins I use https://plugins.jenkins.io/config-file-provider/ to provide a jvm.config file as jenkins is running on a private openshift. So that maven wrapper can download etc it needs to know the http proxy to use. That proxy is different to the developers so we can't check in the file that works for both environments.

At the moment we something likes this;

```
configFileProvider([
        configFile(fileId: 'maven-settings', variable: 'MAVEN_SETTINGS'),
        configFile(fileId: 'maven-jvm-options', variable: 'MAVEN_JVM_OPTIONS')
]) {
        sh 'mkdir .mvn'
        sh 'cp ${MAVEN_JVM_OPTIONS} .mvn/jvm.config'
        sh './mvnw -s ${MAVEN_SETTINGS} clean package'
    }
```

Which feels 2 lines more than it needs to be, ideally it can be collapsed to something like;

```
configFileProvider([
        configFile(fileId: 'maven-settings', variable: 'MAVEN_SETTINGS'),
        configFile(fileId: 'maven-jvm-options', variable: 'MAVEN_JVM_OPTIONS')
]) {
        sh './mvnw -s ${MAVEN_SETTINGS} --jvm-options ${MAVEN_JVM_OPTIONS} clean verify'
    }
```




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