[jira] (MRELEASE-879) Custom toolchain configuration is not passed to forked Maven executions

["Sergei Ivanov (JIRA)" <ji...@codehaus.org>]

Sergei Ivanov created MRELEASE-879:
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             Summary: Custom toolchain configuration is not passed to forked Maven executions
                 Key: MRELEASE-879
                 URL: https://jira.codehaus.org/browse/MRELEASE-879
             Project: Maven Release Plugin
          Issue Type: Bug
          Components: prepare-with-pom
    Affects Versions: 2.5
         Environment: Apache Maven 3.0.4 (r1232337; 2012-01-17 08:44:56+0000)
Maven home: /opt/app/xxx/uat1/tools/apache-maven-3.0.4
Java version: 1.7.0_07, vendor: Oracle Corporation
Java home: /opt/app/xxx/uat/uat1/tools/jdk/32/jdk1.7.0_07/jre
Default locale: en_US, platform encoding: ANSI_X3.4-1968
OS name: "linux", version: "2.6.18-194.32.1.el5", arch: "i386", family: "unix"
            Reporter: Sergei Ivanov


We do use maven toolchains extensively, and recently we had to make a change to pass a custom node-specific toolchain file to our release jobs. We can no longer have a common toolchain file in {{~/.m2/}} directory, so we started using {{--toolchain}} command line option instead.

Unfortunately, this did not work well at all with the Maven release process. It seems that the forked Maven executions (as spawned by {{release:prepare}} and {{release:perform}} goals) do not inherit the custom toolchain configuration from the release plugin execution.

Quickly skimming through the release plugin sources, I could not see any mention of toolchains either. 

As far as I can tell, one would need to extend the {{ReleaseEnvironment}} to pass toolchains file location to the forked Maven process. It should be possible to extract the location of the toolchains file by calling {{org.apache.maven.execution.MavenExecutionRequest.getUserToolchainsFile()}} through Java reflection (in a similar way to what {{getActiveProfileIds()}} method in {{org.apache.maven.plugins.release.AbstractReleaseMojo}} class does). I believe {{--toolchains}} option was only introduced in Maven 3.0.4 and the {{getUserToolchainsFile()}} method may be missing in earlier versions of Maven Core, in which case the release process should simply fall back to the current behaviour.



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