Switch to llvm-cov for CI coverage

Author: Grinkers

.github/workflows/coverage.yml

@@ -18,31 +18,25 @@ jobs:
         with:
           toolchain: stable
           override: true
+      - name: Install cargo-llvm-cov
+        uses: taiki-e/install-action@cargo-llvm-cov
       - name: Run no-default-features tests with code coverage
         uses: actions-rs/cargo@v1
         with:
-          command: test
-          args: --no-default-features --no-fail-fast
-        env:
-          RUSTC_BOOTSTRAP: '1'
-          CARGO_INCREMENTAL: '0'
-          RUSTFLAGS: '-Zprofile -Cinstrument-coverage -Ccodegen-units=1 -Cllvm-args=--inline-threshold=0 -Clink-dead-code -Coverflow-checks=off -Cpanic=abort -Zpanic_abort_tests'
-          RUSTDOCFLAGS: '-Zprofile -Cinstrument-coverage -Ccodegen-units=1 -Cllvm-args=--inline-threshold=0 -Clink-dead-code -Coverflow-checks=off -Cpanic=abort -Zpanic_abort_tests'
+          command: llvm-cov
+          args: --no-report --no-default-features --no-fail-fast
       - name: Run default tests with code coverage
         uses: actions-rs/cargo@v1
         with:
-          command: test
-          args: --all-features --no-fail-fast
-        env:
-          RUSTC_BOOTSTRAP: '1'
-          CARGO_INCREMENTAL: '0'
-          RUSTFLAGS: '-Zprofile -Cinstrument-coverage -Ccodegen-units=1 -Cllvm-args=--inline-threshold=0 -Clink-dead-code -Coverflow-checks=off -Cpanic=abort -Zpanic_abort_tests'
-          RUSTDOCFLAGS: '-Zprofile -Cinstrument-coverage -Ccodegen-units=1 -Cllvm-args=--inline-threshold=0 -Clink-dead-code -Coverflow-checks=off -Cpanic=abort -Zpanic_abort_tests'
-      - name: Run grcov
-        id: coverage
-        uses: rraval/grcov@master
+          command: llvm-cov
+          args: --no-report --all-features --no-fail-fast
+      - name: Generate Report
+        uses: actions-rs/cargo@v1
+        with:
+          command: llvm-cov
+          args: report --lcov --output-path lcov.info
       - name: Coveralls upload
         uses: coverallsapp/github-action@master
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
-          path-to-lcov: ${{ steps.coverage.outputs.report }}
+          path-to-lcov: lcov.info

bb.edn

@@ -21,16 +21,18 @@
   clippy                       {:doc     "Runs all variations of cargo clippy"
                                 :depends [cargo-clippy-all-features cargo-clippy-no-defaults cargo-clippy-examples]}
   cov-all-features             {:doc  "Coverage, all features"
-                                :task (shell {:extra-env code-cov-env} "cargo test --all-features")}
+                                :task (shell {:extra-env code-cov-env} "cargo llvm-cov --no-report --all-features")}
   cov-std-only                 {:doc  "Coverage, std only"
-                                :task (shell {:extra-env code-cov-env} "cargo test --no-default-features")}
+                                :task (shell {:extra-env code-cov-env} "cargo llvm-cov --no-report --no-default-features")}
   cov-examples                 {:doc  "Coverage, examples"
-                                :task (shell {:extra-env code-cov-env} "cargo test --examples")}
-  clean-cov                    {:doc  "Cleans all .profraw files and generated html"
-                                :task (fs/delete-tree "target/coverage")}
-  grcov                        {:doc  "Runs grcov to generate human readable html"
-                                :task (shell "grcov target/coverage --binary-path ./target/debug/deps/ -s . -t html --branch --ignore-not-existing -o target/coverage/html")}
-  coverage                     {:doc     "Generates coverage in human friendly html in target/coverage/"
-                                :depends [clean-cov cov-all-features cov-std-only cov-examples grcov]}
+                                :task (shell {:extra-env code-cov-env} "cargo llvm-cov --no-report --examples")}
+  cov-clean                    {:doc  "Cleans all .profraw files and generated html"
+                                :task (shell "cargo llvm-cov clean --workspace")}
+  cov-report                   {:doc  "Runs llvm-cov"
+                                :task (shell "cargo llvm-cov")}
+  cov-html                     {:doc  "Runs llvm-cov to generate human readable html"
+                                :task (shell "cargo llvm-cov --html")}
+  coverage                     {:doc     "Generates coverage in human friendly html in target/llvm-cov/html/index.html"
+                                :depends [cov-clean cov-all-features cov-std-only cov-examples cov-html cov-report]}
   test                         {:doc     "Runs all tests and checks"
                                 :depends [cargo-test cargo-fmt clippy]}}}