| Re: [m2e-users] Overriding Artifact file resolution during Mojo execution |
Hi Igor,thanks for the answer!There are no plans to expose internal workings of workspace dependencies resolution to m2e extensions at this point.I understand and agree. This is a special functionality that is rarely necessary.The solution I proposed in my second mail is a bit more generic:
- Allow M2E extension developers to run Mojo executions (possible)
- Allow M2E extension developers to run Mojo Executions in the way that they modify the ExecutionRequest (not possible, but it would be easy to add)
At the moment, no system property, user property, WorkspaceReader or anything can be changed if we want to run a Mojo goal on a project. I can imagine that others wanted to set at least a user property sometimes.Kind regards,Zsoldos BalázsRendszertervező | Software architectEverIT Kft.
1137 Budapest, Katona József utca 17. III. em. 2.
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On Thu, Aug 25, 2016 at 4:27 PM, Igor Fedorenko <igor@xxxxxxxxxxxxxx> wrote:There are no plans to expose internal workings of workspace dependencies resolution to m2e extensions at this point. I suggest you use m2e internal classes, but retest your code still work each time you upgrade m2e.--Regards,IgorOn Thu, Aug 25, 2016, at 04:34 AM, Balázs Zsoldos wrote:Hi,I have managed to solve my use-case but it is a bit tricky and it calls internal API. Here is the solution:@SuppressWarnings("restriction") public static IMavenExecutionContext createExecutionContext(final IMavenProjectFacade facade,final IProgressMonitor monitor) throws CoreException {return MavenPluginActivator.getDefault(). getMavenProjectManagerImpl() .createExecutionContext(facade.getPom(), facade. getResolverConfiguration()); }public static <V> V executeInContext(final IMavenProjectFacade facade,final Consumer<MavenExecutionRequest> executionRequestModifier, final ICallable<V> callable, final IProgressMonitor monitor) throws CoreException {IMavenExecutionContext executionContext = createExecutionContext(facade, monitor);MavenExecutionRequest executionRequest = executionContext.getExecutionRequest(); return executionContext.execute((context, monitor1) -> { if (executionRequestModifier != null) {executionRequestModifier.accept(executionRequest); }return MavenPlugin.getMaven().createExecutionContext() .execute(facade.getMavenProject(monitor), callable, monitor); }, monitor);}You can execute an M2E ICallable by calling the function executeInContext. You can modify the state of the executionRequest in the executionRequestModifierparameter (functional interface). I made the solution by analyzing the source code of M2E a lot (I mean days). I noticed that it can be tricked in the following way:
- I create an executionContext by calling internal API of M2E but I do not call execute on it
- I get the executionRequest from the newly created context
- I call execute on the context and inside the execute, I modify the executionRequest (that I got before calling execute)
- I create an embedded execution context and call execute on it. The embedded context will use the executionRequest of the parent (that is modified).
I have a couple of issues with this solution:
- It uses internal API to create pre-configured execution context that has a non-readonly executionRequest. I do not know how long this will work
- The trick with the embedded executionContext works. However, I got that solution by knowing what is inside the source code. I do not know if this trick will work in the next versions of M2E
I would be really happy if there was a standard and tested API that gives us this functionality. At the moment it is impossible to execute any mojo goal from a plugin with any overridden attribute (e.g.: user properties).Regards,Balázs ZsoldosOn Sun, Aug 14, 2016 at 2:44 AM, Balázs Zsoldos <balazs.zsoldos@xxxxxxxxxx> wrote:Hi,I would like to have the following steps in my Eclipse plugin:
- Get the dependency tree of a project (done)
- Flatten the dependency tree to a list that can be used to find out build order (done)
- Iterate through the flattened dependency list and call every "mvn package" on each project that is in the Eclipse workspace without tests (done)
- Use the result JAR file of calling "mvn package" for the next project (how?)
When I call execute(MavenProject, MojoExecution, IProgressMonitor) function, how can I override the artifact resolution in the way that I use a JAR file that was the result of a previous build (mvn package).I checked every function of IMavenExecutionContext interface (and the interfaces it uses) but I could not find a way. Is there a possibility to override the RepositorySystemSession or the WorkspaceReader that belongs to the execution context?Thanks and regards,Balázs Zsoldos_______________________________________________ m2e-users mailing listTo change your delivery options, retrieve your password, or unsubscribe from this list, visit_______________________________________________ m2e-users mailing listTo change your delivery options, retrieve your password, or unsubscribe from this list, visit_______________________________________________m2e-users mailing listTo change your delivery options, retrieve your password, or unsubscribe from this list, visit