From 3bc9ba90aae65917a4385915dd8349c582dbe1bf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?V=C3=ADctor=20Cuadrado=20Juan?= <vcuadradojuan@suse.de>
Date: Thu, 15 Feb 2024 16:48:27 +0100
Subject: [PATCH] ci: Add codecov support
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Víctor Cuadrado Juan <vcuadradojuan@suse.de>
---
 .github/workflows/ci.yml              | 36 +++++++++++++++++++++++++++
 .gitignore                            |  3 +++
 Makefile                              | 17 +++++++++++++
 coverage/integration-tests/.gitignore |  4 +++
 coverage/unit-tests/.gitignore        |  4 +++
 5 files changed, 64 insertions(+)
 create mode 100644 coverage/integration-tests/.gitignore
 create mode 100644 coverage/unit-tests/.gitignore

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4d0ab436..b59ff032 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -84,3 +84,39 @@ jobs:
         with:
           command: clippy
           args: -- -D warnings
+
+  coverage:
+    name: coverage
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@1e31de5234b9f8995739874a8ce0492dc87873e2 # v4.0.0
+      - uses: actions-rs/toolchain@16499b5e05bf2e26879000db0c1d13f7e13fa3af # v1.0.7
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+      - uses: taiki-e/install-action@5794068c211bc8f5f4514b7c3f03d6adbe66f1b7 # v2.26.18
+        with:
+          tool: cargo-tarpaulin
+      - name: Generate unit-tests coverage
+        run: make coverage-unit-tests
+      - name: Upload unit-tests coverage to Codecov
+        uses: codecov/codecov-action@e0b68c6749509c5f83f984dd99a76a1c1a231044 # v4.0.1
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_ORG_TOKEN }}
+        with:
+          name: unit-tests
+          directory: coverage/unit-tests
+          flags: unit-tests
+          verbose: true
+      - name: Generate integration-tests coverage
+        run: make coverage-integration-tests
+      - name: Upload unit-tests coverage to Codecov
+        uses: codecov/codecov-action@e0b68c6749509c5f83f984dd99a76a1c1a231044 # v4.0.1
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_ORG_TOKEN }}
+        with:
+          name: integration-tests
+          directory: coverage/integration-tests
+          flags: integration-tests
+          verbose: true
diff --git a/.gitignore b/.gitignore
index 316b96e1..0a0b41c5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,6 @@
 bom-cargo.json
 /bin
 /registry
+
+# coverage instrumentation:
+*.profraw
diff --git a/Makefile b/Makefile
index 72bb9e43..57ba28ce 100644
--- a/Makefile
+++ b/Makefile
@@ -31,6 +31,23 @@ unit-tests: fmt lint
 integration-tests: fmt lint
 	cargo test --test '*'
 
+.PHONY: coverage
+coverage: coverage-unit-tests coverage-integration-tests
+	
+.PHONY: coverage-unit-tests
+coverage-unit-tests:
+	# integration-tests with llvm need +nightly. Hence, enable +nightly on
+	# unit-tests, and use --skip-clean to not recompile on CI if not needed
+	cargo tarpaulin --verbose --skip-clean --engine=llvm \
+		--all-features --lib --bin --follow-exec \
+		--out xml --out html --output-dir coverage/unit-tests
+	
+.PHONY: coverage-integration-tests
+coverage-integration-tests:
+	cargo tarpaulin --verbose --skip-clean --engine=llvm \
+		--all-features --test integration_test --follow-exec \
+		--out xml --out html --output-dir coverage/integration-tests
+
 .PHONY: clean
 clean:
 	cargo clean
diff --git a/coverage/integration-tests/.gitignore b/coverage/integration-tests/.gitignore
new file mode 100644
index 00000000..5e7d2734
--- /dev/null
+++ b/coverage/integration-tests/.gitignore
@@ -0,0 +1,4 @@
+# Ignore everything in this directory
+*
+# Except this file
+!.gitignore
diff --git a/coverage/unit-tests/.gitignore b/coverage/unit-tests/.gitignore
new file mode 100644
index 00000000..5e7d2734
--- /dev/null
+++ b/coverage/unit-tests/.gitignore
@@ -0,0 +1,4 @@
+# Ignore everything in this directory
+*
+# Except this file
+!.gitignore