Generate an upload coverage reports in CI

Author: stadust

.github/workflows/test.yml

@@ -1,5 +1,9 @@
 name: Run test suite
-on: pull_request
+on:
+  pull_request:
+  push:
+    branches:
+      - master
 
 jobs:
   # Label of the container job
@@ -38,6 +42,7 @@ jobs:
           profile: minimal
           toolchain: stable
           override: true
+          components: llvm-tools-preview
 
       - name: Install sqlx-cli
         uses: actions-rs/cargo@v1
@@ -52,11 +57,26 @@ jobs:
           args: migrate run
         env:
           DATABASE_URL: postgresql://pointercrate:postgres@localhost/postgres
-          RUST_BACKTRACE: 1
 
       - name: Run tests
         uses: actions-rs/cargo@v1
         with:
           command: test
         env:
           DATABASE_URL: postgresql://pointercrate:postgres@localhost/postgres
+          RUST_BACKTRACE: 1
+          RUSTFLAGS: -Cinstrument-coverage
+
+      - name: Install grcov
+        uses: actions-rs/cargo@v1
+        with:
+          command: install
+          args: grcov
+
+      - name: Generate coverage report
+        run: grcov . -s . --binary-path ./target/debug/ -t lcov --ignore-not-existing -o ./target/debug/coverage.lcov  --ignore "*/tests/*" --keep-only "pointercrate-*"
+
+      - name: Upload coverage report
+        uses: codecov/codecov-action@v3
+        with:
+          files: ./target/debug/coverage.lcov