feat: use llvm-cov for coverage (#478)

* feat: use llvm-cov for coverage

* fix: ci

* bump: rust cache action

* fix: use nextest

* misc: seperate doctest

* fix: ci

* fix: rustfmt

* fix: windows incremental build

* fix: disable debug info to save disk space

* Update ci.yml

* misc: use C drive for target dir

* misc: updated CHANGELOG

* fix: test

.cargo/config

@@ -3,10 +3,3 @@
 gen-syntax        = "run --package tools --bin tools -- gen-syntax"
 gen-runtime-capi  = "run --package tools --bin tools -- gen-runtime-capi"
 gen-abi           = "run --package tools --bin tools -- gen-abi"
-
-[profile.min-artifact-size-debug]
-inherits = "dev"
-
-# disable debug symbols for all packages except this one
-[profile.min-artifact-size-debug.package."*"]
-debug = false

.github/workflows/ci.yml

@@ -57,9 +57,17 @@ jobs:
         include:
           - RUSTFLAGS: "-Dwarnings"
             CARGO_INCREMENTAL: 1
+            CARGO_TARGET_DIR: "target"
           - os: "windows-latest"
             RUSTFLAGS: "-Dwarnings -Ctarget-feature=+crt-static"
             CARGO_INCREMENTAL: 0
+            CARGO_TARGET_DIR: "C:\\cargo-target-dir"
+    env:
+      RUSTFLAGS: ${{ matrix.RUSTFLAGS }}
+      CARGO_INCREMENTAL: ${{ matrix.CARGO_INCREMENTAL }}
+      # Disable generating debug info, we don't need it here anyway and its only using disk space
+      CARGO_PROFILE_DEV_DEBUG: 0
+      CARGO_TARGET_DIR: ${{ matrix.CARGO_TARGET_DIR }}
     steps:
       - uses: actions/checkout@v3
         with:
@@ -79,34 +87,75 @@ jobs:
         with:
           profile: minimal
           override: true
-          components: rustfmt
+          components: rustfmt, llvm-tools-preview
 
       - uses: Swatinem/rust-cache@v2
         if: matrix.os != 'windows-latest'
 
-      - name: Doctests
-        uses: actions-rs/cargo@v1
-        env:
-          RUSTFLAGS: ${{ matrix.RUSTFLAGS }}
-          CARGO_INCREMENTAL: ${{ matrix.CARGO_INCREMENTAL }}
-        with:
-          command: test
-          args: --doc --all-features --profile min-artifact-size-debug
+      - name: Install latest llvm-cov release
+        uses: taiki-e/install-action@cargo-llvm-cov
 
       - name: Install latest nextest release
         uses: taiki-e/install-action@nextest
 
-      - run: Get-PSDrive
-        if: matrix.os == 'windows-latest'
-
       - name: Test with latest nextest release
         uses: actions-rs/cargo@v1
-        env:
-          RUSTFLAGS: ${{ matrix.RUSTFLAGS }}
-          CARGO_INCREMENTAL: ${{ matrix.CARGO_INCREMENTAL }}
         with:
-          command: nextest
-          args: run --all-features --profile ci --cargo-profile min-artifact-size-debug
+          command: llvm-cov
+          args: nextest --all-features --workspace --lcov --output-path lcov.info --profile ci
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v3
+        with:
+          files: lcov.info
+          name: ${{ matrix.os }}
+          fail_ci_if_error: true
+
+  doctest:
+    name: Doctest Rust
+    needs: check
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ "ubuntu-latest", "windows-latest", "macOS-latest" ]
+        include:
+          - RUSTFLAGS: "-Dwarnings"
+            CARGO_INCREMENTAL: 1
+          - os: "windows-latest"
+            RUSTFLAGS: "-Dwarnings -Ctarget-feature=+crt-static"
+            CARGO_INCREMENTAL: 0
+    env:
+      RUSTFLAGS: ${{ matrix.RUSTFLAGS }}
+      CARGO_INCREMENTAL: ${{ matrix.CARGO_INCREMENTAL }}
+      # Disable generating debug info, we don't need it here anyway and its only using disk space
+      CARGO_PROFILE_DEV_DEBUG: 0
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: true
+
+      - name: Install LLVM
+        uses: ./.github/actions/install-llvm
+
+      - name: Install packages
+        if: matrix.os == 'ubuntu-20.04'
+        run: |
+          sudo apt-get update
+          sudo apt-get install libasound2-dev libudev-dev
+
+      - name: Install toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+
+      - uses: Swatinem/rust-cache@v2
+
+      - name: Doctests
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --doc --all-features
 
   test-mdbook:
     name: Test mdbook
@@ -248,37 +297,4 @@ jobs:
         uses: actions-rs/clippy-check@v1
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
-          args: --all-features
-
-  tarpaulin:
-    runs-on: ubuntu-latest
-    needs: check
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          submodules: true
-
-      - name: Install packages
-        run: |
-          sudo apt-get update
-          sudo apt-get install libasound2-dev libudev-dev
-
-      - name: Install toolchain
-        uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          override: true
-          components: rustfmt
-
-      - uses: Swatinem/rust-cache@v2
-
-      - name: Install LLVM
-        uses: ./.github/actions/install-llvm
-
-      - name: Run cargo-tarpaulin
-        uses: actions-rs/[email protected]
-
-      - uses: codecov/codecov-action@v3
-        with:
-          file: ${{ steps.coverage.outputs.report }}
-          name: ${{ matrix.os }}
+          args: --all-features

CHANGELOG.md

@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+- Switch to LLVM code coverage instead of using Tarpaulin [#478](https://github.com/mun-lang/mun/pull/478)
 - Bump LLVM from 12 to 13 [#491](https://github.com/mun-lang/mun/pull/491)
 - Reduce workspace target folder size from 10.9 GB to 10.6 GB
 - Reduce workspace build dependencies from 296 to 270