Manuel Jordan created MNG-7050:
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Summary: Create M2_REPOSITORY env variable for Local Repository
and Wrapper locations
Key: MNG-7050
URL: https://issues.apache.org/jira/browse/MNG-7050
Project: Maven
Issue Type: Improvement
Components: core, maven wrapper, Settings
Affects Versions: 3.6.3
Reporter: Manuel Jordan
I need do mention about Gradle to understand and find the same solution or
approach for Maven.
In Gradle exists the {{GRADLE_HOME}} and {{GRADLE_USER_HOME}} (repository)
_environment variables_, for Maven the former through {{M2_HOME}} and about the
_repository_ I use the {{settings.xml}} file to define the
{{<localRepository>}} location
For both Maven and Gradle I can define in peace the place about where is
installed the software, for example other location than {{.m2}} and {{.gradle}}
to a secondary disk and even with customized directory names. Same goal about
the repository location, both for a secondary disk (remember for Maven through
the {{settings.xml}} file)
*Note*: therefore {{.gradle}} and {{.m2}} are empty and not used.
In Gradle about the wrapper created, the {{gradle-wrapper.properties}} file has:
{code:java}
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-#.#.#-bin.zip
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
{code}
Then the final path is: {{GRADLE_USER_HOME/wrapper/dists}}
Therefore observe how {{GRADLE_USER_HOME}} (custom location - otherwise
{{.gradle}} by default) is used to define the:
* Local repository
* Base path to install the downloaded Gradle through the wrapper
*New Improvement*: Add for Maven an environment variable named M2_REPOSITORY
for the _Local Repository_ and _Wrapper Installation_ locations that Maven
should recognize automatically (*not* using the {{settings.xml}} file).
It with the purpose to have any Maven wrapper(s) installed according to that
_environment variable_ value (custom location - otherwise {{.m2}} by default)
and of course applied for the Local Repository location too.
*Observation*: If the {{settings.xml}} file exists it should override the
M2_REPOSITORY value.
*Therefore*: I need the {{maven-wrapper.properties}} using something like
{{M2_REPOSITORY}} (custom location - otherwise {{.m2}} by default) according
the developer/user in its machine.
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