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https://issues.apache.org/jira/browse/MNG-7914?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17874545#comment-17874545
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ASF GitHub Bot commented on MNG-7914:
-------------------------------------
slawekjaranowski commented on code in PR #1595:
URL: https://github.com/apache/maven/pull/1595#discussion_r1720809505
##########
maven-embedder/src/main/java/org/apache/maven/cli/MavenCli.java:
##########
@@ -1624,20 +1635,65 @@ static void populateProperties(
String mavenBuildVersion =
CLIReportingUtils.createMavenVersionString(buildProperties);
systemProperties.setProperty("maven.build.version", mavenBuildVersion);
- BasicInterpolator interpolator =
- createInterpolator(paths, systemProperties, userProperties,
userSpecifiedProperties);
- for (Map.Entry<Object, Object> e : userSpecifiedProperties.entrySet())
{
- String name = (String) e.getKey();
- String value = interpolator.interpolate((String) e.getValue());
- userProperties.setProperty(name, value);
- //
----------------------------------------------------------------------
- // I'm leaving the setting of system properties here as not to
break
- // the SystemPropertyProfileActivator. This won't harm embedding.
jvz.
- //
----------------------------------------------------------------------
- if (System.getProperty(name) == null) {
- System.setProperty(name, value);
- }
+ //
----------------------------------------------------------------------
+ // Options that are set on the command line become system properties
+ // and therefore are set in the session properties. System properties
+ // are most dominant.
+ //
----------------------------------------------------------------------
+
+ Properties userSpecifiedProperties =
+
commandLine.getOptionProperties(String.valueOf(CLIManager.SET_USER_PROPERTY));
+ userProperties.putAll(userSpecifiedProperties);
+
+ //
----------------------------------------------------------------------
+ // Load config files
+ //
----------------------------------------------------------------------
+ Function<String, String> callback =
+ or(paths::getProperty, prefix("cli.",
commandLine::getOptionValue), systemProperties::getProperty);
Review Comment:
it is necessary
> Provide a single entry point for configuration
> ----------------------------------------------
>
> Key: MNG-7914
> URL: https://issues.apache.org/jira/browse/MNG-7914
> Project: Maven
> Issue Type: New Feature
> Reporter: Guillaume Nodet
> Priority: Major
> Fix For: 4.0.x-candidate
>
>
> Looking at MNG-7772, this should not require any code change, but it's all
> about configuration.
> I propose to load / interpolate the following files:
> * {{${maven.home}/conf/maven.user.properties}}
> * {{${maven.home}/conf/maven.system.properties}}
> Those files would be used to load additional user properties and system
> properties for Maven. In addition to the simple interpolation mechanism, we
> should provide two enhancements using special keys {{{}$\{includes{}}}} and
> {{{}$\{optionals{}}}} which would be used to load additional referenced
> configuration files such as:
> {{ ${optionals} = ${user.home}/.m2/maven.user.properties,
> ${session.rootDirectory}/.mvn/maven.user.properties}}
> Being loaded early when Maven is loaded, those files could reference
> directories to load extensions from:
> {{{}maven.core.extensions.directories =
> ${session.rootDirectory}/.mvn/extensions.xml,{}}}{{{}${user.home}/.m2/extensions.xml,${maven.home}/extensions.xml{}}}
>
> In various places, the maven code could be simplified and offer more
> configuration points at the same time.
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