Remove unnecessary cc_test coverage handling
#20349
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fmeum
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cc_test handling of implicit coverage attributescc_test coverage handling
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In addition to the the normal setup consisting of implicit attributes and the use of `coverage_common.instrumented_files_info`, this also requires working around a bug in `cc_test`: bazelbuild/bazel#20349
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In addition to the the normal setup consisting of implicit attributes and the use of `coverage_common.instrumented_files_info`, this also requires working around a bug in `cc_test`: bazelbuild/bazel#20349
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In addition to the the normal setup consisting of implicit attributes and the use of `coverage_common.instrumented_files_info`, this also requires working around a bug in `cc_test`: bazelbuild/bazel#20349
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In addition to the the normal setup consisting of implicit attributes and the use of `coverage_common.instrumented_files_info`, this also requires working around a bug in `cc_test`: bazelbuild/bazel#20349
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Both the `lcov_merger` and the `collect_cc_coverage` script are obtained from "well-known" implicit attributes of Starlark rules and do not require any further special handling. Removing this special handling also fixes a fringe bug: When a `cc_test` is wrapped in another test target that applies a transition to it, the removed logic set the `LCOV_MERGER` variable to the untransitioned path of the `lcov_merger`, which will then not be available in the test sandbox since it is only added as a runfile, but the test action references it via its exec path. This resulted in a "file not found" error that broke coverage. Closes bazelbuild#20349. PiperOrigin-RevId: 589252093 Change-Id: I810f1b414dcfedcc8930a74390ef5c9bfd2cd030
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Both the `lcov_merger` and the `collect_cc_coverage` script are obtained from "well-known" implicit attributes of Starlark rules and do not require any further special handling. Removing this special handling also fixes a fringe bug: When a `cc_test` is wrapped in another test target that applies a transition to it, the removed logic set the `LCOV_MERGER` variable to the untransitioned path of the `lcov_merger`, which will then not be available in the test sandbox since it is only added as a runfile, but the test action references it via its exec path. This resulted in a "file not found" error that broke coverage. Closes #20349. Commit 591d125 PiperOrigin-RevId: 589252093 Change-Id: I810f1b414dcfedcc8930a74390ef5c9bfd2cd030 Co-authored-by: Fabian Meumertzheim <fabian@meumertzhe.im> Co-authored-by: Ian (Hee) Cha <heec@google.com>
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The changes in this PR have been included in Bazel 7.1.0 RC1. Please test out the release candidate and report any issues as soon as possible. If you're using Bazelisk, you can point to the latest RC by setting USE_BAZEL_VERSION=last_rc. |
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Both the
lcov_mergerand thecollect_cc_coveragescript are obtained from "well-known" implicit attributes of Starlark rules and do not require any further special handling.Removing this special handling also fixes a fringe bug: When a
cc_testis wrapped in another test target that applies a transition to it, the removed logic set theLCOV_MERGERvariable to the untransitioned path of thelcov_merger, which will then not be available in the test sandbox since it is only added as a runfile, but the test action references it via its exec path. This resulted in a "file not found" error that broke coverage.