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https://issues.apache.org/jira/browse/MNG-6025?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Scholte updated MNG-6025:
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Fix Version/s: 3.5.1-candidate
> Add a ProjectArtifactsCache similar to PluginArtifactsCache
> -----------------------------------------------------------
>
> Key: MNG-6025
> URL: https://issues.apache.org/jira/browse/MNG-6025
> Project: Maven
> Issue Type: Improvement
> Components: core
> Affects Versions: 3.3.9
> Reporter: Anton Tanasenko
> Assignee: Jason van Zyl
> Priority: Minor
> Fix For: 3.5.1-candidate, needing-scrub-3.4.0-fallout
>
>
> Every mojo execution, if it specifies dependency resolution other than
> 'none', will cause a resolution to be performed.
> There is a guard in MojoExecutor's DependencyContext which guards against
> performing this resolution multiple times by looking at the changes to
> dependencyArtifacts list.
> However, during a build in an incremental/interactive environment, like
> eclipse m2e or maven console, those mojos might be executed at an arbitrary
> time and will not benefit from that DependencyContext check.
> I propose having a ProjectArtifactsCache (very similar to
> PluginArtifactsCache) that will cache artifact set as returned by
> LifecycleDependencyResolver#getDependencies().
> While it does not improve cli builds, incremental/interactive builds will
> receive a huge performance boost between pom changes.
> I've been able to get build of a project with a lot of dependencies (jenkins
> plugin) and a number of (fully incremental) mojo executions from 7 seconds to
> around 1.5 on a single java file change in eclipse m2e after introducing this
> cache.
> I will provide a patch shortly.
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