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for every type of action.
PiperOrigin-RevId: 187368369
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Context: java_import or other custom rules (genrules or Skylark) do not propagate coverage information. Coverage metadata is retrieved from the compilation information and it is passed around through providers as Artifact(s). The problem with the current implementation is that there is no way of retrieving instrumentation metadata from arbitrary jars provided by java_import or other custom rules.
--experimental_java_coverage solves the issue presented above ONLY for the java rules (has no effect for android/[]/etc).
Implementation details:
* For each build jar create a .txt file containing the relative path of each Java file. This file is included in the build jar. It is used for recreating the correct path for each covered file when included in the coverage report.
* java_binary/java_test will set 3 environment variables:
1) JACOCO_METADATA_JAR - in experimental mode will be a txt file containing all the jars considered for collecting coverage (JacocoCoverageRunner filters out the ones that don't have .uninstrumented.class files). In non-experimental mode will be a jar containing all the instrumented class files.
2) JACOCO_MAIN_CLASS - The main class to be called for the current coverage run. Previously this information was embedded in the JACOCO_METADATA_JAR's manifest.
3) JACOCO_JAVA_RUNFILES
RELNOTES: --experimental_java_coverage is available for testing.
PiperOrigin-RevId: 177941471
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*** Reason for rollback ***
Breaks coverage for android_test (N/A).
Can be reproduced with unknown commit.
*** Original change description ***
Rollforward change of Java coverage logic.
RELNOTES: None.
*** Original change description ***
Automated rollback of commit 8d6fc64b18c7e35b93f5c43dae1dbd2f8cae2147.
PiperOrigin-RevId: 170322801
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RELNOTES: None.
*** Original change description ***
Automated rollback of commit 8d6fc64b18c7e35b93f5c43dae1dbd2f8cae2147.
PiperOrigin-RevId: 170038845
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PiperOrigin-RevId: 167480127
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Instead of passing all the runtime jars in the environment variable, we now write them all to a file and store the file path in the env variable, jacoco runner reading the jars from there. Changes on Jacoco runner side are here: https://github.com/bazelbuild/bazel/commit/05418b33dd87d63e2653e594d462b2aedb0e22e5
RELNOTES: A new Java coverage implementation is available. Makes possible coverage for Skylark JVM rules.
PiperOrigin-RevId: 167248966
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