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Re: [m2e-dev] <runOnConfiguration> and copying resources

Again, your plugin must not generate any output resources if its inputs
have not changes according to BuildContext. In the case of configuration
build, BuildContext is empty, so the plugin is expected to skip output
resources generation.

--
Regards,
Igor

On 12-10-19 4:25 PM, Steven Bethard wrote:
On Oct 19, 2012, at 4:24 AM, Igor Fedorenko <igor@xxxxxxxxxxxxxx> wrote:
Your maven plugin is expected to only add new source root and do nothing
else during import/configuration. All source code generation should
happen during normal full/incremental build.

So how do I tell from my plugin that it's project import/configuration and not a normal full/incremental build?

Steve


--
Regards,
Igor

On 12-10-19 12:56 AM, Steven Bethard wrote:
On Oct 18, 2012, at 9:16 PM, Steven Bethard <steven.bethard@xxxxxxxxxxxx> wrote:
The problem seems to be that resources:resources isn't copying anything over during project import/configuration.

Ok, after some more debugging, I conclude that this is intentional, since <runOnConfiguration> is not set to "true" for the "maven-resources-plugin":

http://git.eclipse.org/c/m2e/m2e-core.git/tree/org.eclipse.m2e.lifecyclemapping.defaults/lifecycle-mapping-metadata.xml

So I can't even collect the input files that I should be checking with BuildContext.hasDelta because:
* I have to load the TypeSystem to find all the input files
* Loading the TypeSystem with an incomplete classpath will result in errors
* The classpath is incomplete because maven-resources-plugin has not copied the resources

Is there some other way to tell that I'm in the project import/configuration phase? Here's a horrible hack that seems to work:

     if (this.buildContext instanceof ThreadBuildContext
         && ThreadBuildContext.getContext().getClass().getName().equals(
             "org.eclipse.m2e.core.internal.builder.EclipseEmptyBuildContext")) {
       return;
     }

Is there something nicer than this?

Steve
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