[jira] [Commented] (LUCENE-5755) Explore alternative build systems

["Matt Davis (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LUCENE-5755?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14049094#comment-14049094 ] 

Matt Davis commented on LUCENE-5755:
------------------------------------

Gradle does use which ever junit version you specific. For example:

dependencies {
		testCompile 'junit:junit:[4.10,)'
}

And because of the annotation RunWith(RandomizedRunner.class) and the configured dependency to 'com.carrotsearch.randomizedtesting:randomizedtesting-runner:2.1.3' it uses the RandomizedRunner from CarrotSearch.  As I said before it also launches a separate JVM.  The actually issue is that it switches the system.out before each test to capture the output.  See the following classes:
https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/groovy/org/gradle/api/internal/tasks/testing/processors/CaptureTestOutputTestResultProcessor.java
https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/groovy/org/gradle/api/internal/tasks/testing/junit/JUnitTestClassProcessor.java
https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/groovy/org/gradle/api/internal/tasks/testing/junit/JULRedirector.java
https://github.com/gradle/gradle/blob/master/subprojects/core/src/main/groovy/org/gradle/logging/internal/DefaultStandardOutputRedirector.java
https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/groovy/org/gradle/api/internal/tasks/testing/junit/JUnitTestFramework.java
https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/groovy/org/gradle/api/tasks/testing/Test.java

If I disable the System.out check (https://github.com/mdavis95/lucene-solr/commit/1b8798894e9f2c52b905eb5f259ef4108bb0b6d7), and allow lucene benchmark to find alg files through a hack (https://github.com/mdavis95/lucene-solr/commit/6be7c4a3b68fdc9ee749674d101a1c75b2f725be).  A whole lot of tests start to past.  

For the lucene core I have 783 test successfull, 518 skipped, and 5 failures.  The only 5 that failed were in TestVirtualMethod.

java.lang.RuntimeException: Suite class org.apache.lucene.util.TestVirtualMethod$TestClass1 should be public.




> Explore alternative build systems
> ---------------------------------
>
>                 Key: LUCENE-5755
>                 URL: https://issues.apache.org/jira/browse/LUCENE-5755
>             Project: Lucene - Core
>          Issue Type: Task
>            Reporter: Dawid Weiss
>            Assignee: Dawid Weiss
>            Priority: Minor
>
> I am dissatisfied with how ANT and submodules currently work in Lucene/ Solr. It's not even the tool's fault; it seems Lucene builds just hit the borders of what it can do, especially in terms of submodule dependencies etc.
> I don't think Maven will help much too, given certain things I'd like to have in the build (for example collect all tests globally for a single execution phase at the end of the build, to support better load-balancing).
> I'd like to explore Gradle as an alternative. This task is a notepad for thoughts and experiments.
> An example of a complex (?) gradle build is javafx, for example.
> http://hg.openjdk.java.net/openjfx/8/master/rt/file/f89b7dc932af/build.gradle



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