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https://issues.apache.org/jira/browse/MNG-5199?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15439186#comment-15439186
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Louis Lecaroz commented on MNG-5199:
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In CI environments, also having projects using Maven third parties plugins or
surefire, not taking care of a project settings.xml & in consequence the global
settings.xml is taken in account in place. But because some settings depends on
the CI build & multiple CI builds are running on the same slave. the global
settings.xml must be part of the build directory instead of the maven
installation dir. So the org.apache.maven.global-settings will be useful for
isolating global settings.xml read by third parties maven plugins in each
corresponding build.
The goal of such variables (org.apache.maven.user-settings and
org.apache.maven.global-settings properties) is to have only fixed file (like
binaries for ex...) in M2_HOME (or MAVEN_HOME) & all configuration files like
toolchain, settings.xml set thru the MAVEN_OPTS variable to fully isolate each
maven contexts in each build
> Return back org.apache.maven.user-settings and
> org.apache.maven.global-settings properties
> ------------------------------------------------------------------------------------------
>
> Key: MNG-5199
> URL: https://issues.apache.org/jira/browse/MNG-5199
> Project: Maven
> Issue Type: New Feature
> Components: Settings
> Affects Versions: 3.0.3
> Reporter: Karel Piwko
>
> According to discussion at
> http://maven.40175.n5.nabble.com/Maven-3-support-for-org-apache-maven-user-settings-td3261146.html,
> I'm sure there is a valid use case for the property:
> Imagine following:
> {code}
> mvn -s setting.xml test
> {code}
> Surefire has no way how to pass the path of the settings.xml in the spawned
> process. If the test in spawned process want to for example access remote
> repository defined in settings.xml, user has to specify settings.xml path in
> the test itself.
> However, for the following:
> {code}
> mvn -Dorg.apache.maven.user-settings=settings.xml test
> {code}
> This system property can be passed to surefire configuration and propagated
> to the Surefire spawned process later on.
> Having a system property removes duplication of the environment settings.
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