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Magically improve coverage #6345

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merged 6 commits into from
Oct 16, 2019
Merged

Magically improve coverage #6345

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cef3e6e
Delete old workaround and magically improve coverage
ryoqun Oct 14, 2019
a82a494
Restore workaround with updated comment; sadly still needed.
ryoqun Oct 16, 2019
550918c
Separate for easier debugging; also forward args
ryoqun Oct 16, 2019
98005bf
Redirect coverage stderr to file
ryoqun Oct 16, 2019
dba30e2
Compress right before uploading to save space
ryoqun Oct 16, 2019
ccafb52
Simplify
ryoqun Oct 16, 2019
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4 changes: 4 additions & 0 deletions ci/test-coverage.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,10 @@ scripts/coverage.sh
report=coverage-"${CI_COMMIT:0:9}".tar.gz
mv target/cov/report.tar.gz "$report"
upload-ci-artifact "$report"

gzip target/cov/coverage-stderr.log
upload-ci-artifact target/cov/coverage-stderr.log.gz

annotate --style success --context lcov-report \
"lcov report: <a href=\"artifact://$report\">$report</a>"

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7 changes: 5 additions & 2 deletions scripts/coverage.sh
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Expand Up @@ -14,13 +14,14 @@ reportName="lcov-${CI_COMMIT:0:9}"

if [[ -n $1 ]]; then
crate="--package $1"
shift
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To forward the rest to cargo test at https://github.com/solana-labs/solana/pull/6345/files#diff-c29225768574b8edd4f3608f595c29f7R41, shift $1 here.

else
crate="--all --exclude solana-local-cluster"
fi

coverageFlags=(-Zprofile) # Enable coverage
coverageFlags+=("-Clink-dead-code") # Dead code should appear red in the report
coverageFlags+=("-Ccodegen-units=1") # Disable ThinLTO which corrupts debuginfo (see [rustc issue #45511]).
coverageFlags+=("-Ccodegen-units=1") # Disable code generation parallelism which is unsupported under -Zprofile (see [rustc issue #51705]).
coverageFlags+=("-Cinline-threshold=0") # Disable inlining, which complicates control flow.
coverageFlags+=("-Coverflow-checks=off") # Disable overflow checks, which create unnecessary branches.

Expand All @@ -37,7 +38,9 @@ rm -rf target/cov/$reportName

source ci/rust-version.sh nightly
# shellcheck disable=SC2086 #
_ cargo +$rust_nightly test --target-dir target/cov --lib $crate
RUST_LOG=solana=trace _ cargo +$rust_nightly test --target-dir target/cov --lib --no-run $crate "$@"
# shellcheck disable=SC2086 #
RUST_LOG=solana=trace _ cargo +$rust_nightly test --target-dir target/cov --lib $crate "$@" 2> target/cov/coverage-stderr.log

echo "--- grcov"

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