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Remove extra work when computing code coverage

See original GitHub issue

https://github.com/facebook/buck/commit/0cc8d5d6a9629b56f49dee41e9d2623058337380 introduced a performance degradation for projects that do not use the direct_to_jar spool mode when computing code coverage

Ideally, the classes dir can be used if it already exists to prevent unzipping for projects that output classes to the filesystem already.

Issue Analytics

State:
Created 7 years ago
Comments:17 (9 by maintainers)

Top GitHub Comments

2reactions

kageiitcommented, Jan 27, 2017

@tdrhq We are seeing an exception with the latest buck version

TESTS PASSED
Failed on step emma_report with an exception:
buck-out/bin/freight/freight-authentication/lib__src_release__classes does not exist
java.lang.IllegalStateException: buck-out/bin/freight/freight-authentication/lib__src_release__classes does not exist
	at com.google.common.base.Preconditions.checkState(Preconditions.java:444)
	at com.facebook.buck.jvm.java.GenerateCodeCoverageReportStep.populateClassesDir(GenerateCodeCoverageReportStep.java:189)
	at com.facebook.buck.jvm.java.GenerateCodeCoverageReportStep.execute(GenerateCodeCoverageReportStep.java:98)
	at com.facebook.buck.step.DefaultStepRunner.runStepForBuildTarget(DefaultStepRunner.java:47)
	at com.facebook.buck.cli.TestRunning.runTests(TestRunning.java:437)
	at com.facebook.buck.cli.TestCommand.runTestsInternal(TestCommand.java:316)
	at com.facebook.buck.cli.TestCommand.runWithoutHelp(TestCommand.java:580)
	at com.facebook.buck.cli.AbstractCommand.run(AbstractCommand.java:205)
	at com.facebook.buck.cli.BuckCommand.run(BuckCommand.java:91)
	at com.facebook.buck.cli.Main.runMainWithExitCode(Main.java:1287)
	at com.facebook.buck.cli.Main.runMainThenExit(Main.java:706)
	at com.facebook.buck.cli.Main.main(Main.java:1884)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at com.facebook.buck.cli.bootstrapper.ClassLoaderBootstrapper.main(ClassLoaderBootstrapper.java:62)

0reactions

felipecslcommented, May 15, 2017

This seems to be fixed with jar_spool_mode = direct_to_jar in the buckconfig file

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