From 252849f24a5ca7c3093396bb2c21d1d494d0aa3e Mon Sep 17 00:00:00 2001
From: Jose Celano <josecelano@gmail.com>
Date: Tue, 26 Sep 2023 07:50:12 +0100
Subject: [PATCH] ci: add coverage workflow

---
 .github/workflows/coverage.yaml | 69 +++++++++++++++++++++++++++++++++
 README.md                       |  2 +-
 2 files changed, 70 insertions(+), 1 deletion(-)
 create mode 100644 .github/workflows/coverage.yaml

diff --git a/.github/workflows/coverage.yaml b/.github/workflows/coverage.yaml
new file mode 100644
index 0000000..b4807c6
--- /dev/null
+++ b/.github/workflows/coverage.yaml
@@ -0,0 +1,69 @@
+name: Coverage
+
+on:
+  push:
+    branches:
+      - main
+  pull_request_target:
+    branches:
+      - main
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  report:
+    name: Report
+    environment: coverage
+    runs-on: ubuntu-latest
+    env:
+      CARGO_INCREMENTAL: "0"
+      RUSTFLAGS: "-Z profile -C codegen-units=1 -C inline-threshold=0 -C link-dead-code -C overflow-checks=off -C panic=abort -Z panic_abort_tests"
+      RUSTDOCFLAGS: "-Z profile -C codegen-units=1 -C inline-threshold=0 -C link-dead-code -C overflow-checks=off -C panic=abort -Z panic_abort_tests"
+
+    steps:
+      - id: checkout_push
+        if: github.event_name  == 'push'
+        name: Checkout Repository (Push)
+        uses: actions/checkout@v4
+
+      - id: checkout_pull_request_target
+        if: github.event_name  == 'pull_request_target'
+        name: Checkout Repository (Pull Request Target)
+        uses: actions/checkout@v4
+        with:
+          ref: "refs/pull/${{ github.event.pull_request.number }}/head"
+
+      - id: setup
+        name: Setup Toolchain
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          toolchain: nightly
+          components: llvm-tools-preview
+
+      - id: cache
+        name: Enable Workflow Cache
+        uses: Swatinem/rust-cache@v2
+
+      - id: tools
+        name: Install tools
+        uses: taiki-e/install-action@v2
+        with:
+          tool: grcov,cargo-llvm-cov,nextest
+
+      - id: print
+        name: Print Coverage Report
+        run: cargo llvm-cov nextest
+
+      - id: report
+        name: Generate Coverage Report
+        uses: alekitto/grcov@v0.2
+
+      - id: upload
+        name: Upload Coverage Report
+        uses: codecov/codecov-action@v3
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: ${{ steps.coverage.outputs.report }}
+          verbose: true
+          fail_ci_if_error: true
diff --git a/README.md b/README.md
index 6625e77..a66dc5a 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Torrust Serde Bencode
 
-[![Checking](https://github.com/torrust/torrust-serde-bencode/actions/workflows/checking.yml/badge.svg)](https://github.com/torrust/torrust-serde-bencode/actions/workflows/checking.yml) [![Formatting](https://github.com/torrust/torrust-serde-bencode/actions/workflows/formatting.yml/badge.svg)](https://github.com/torrust/torrust-serde-bencode/actions/workflows/formatting.yml) [![Testing](https://github.com/torrust/torrust-serde-bencode/actions/workflows/testing.yaml/badge.svg)](https://github.com/torrust/torrust-serde-bencode/actions/workflows/testing.yaml) [![Benchmarking](https://github.com/torrust/torrust-serde-bencode/actions/workflows/benchmarking.yml/badge.svg)](https://github.com/torrust/torrust-serde-bencode/actions/workflows/benchmarking.yml)
+[![Checking](https://github.com/torrust/torrust-serde-bencode/actions/workflows/checking.yml/badge.svg)](https://github.com/torrust/torrust-serde-bencode/actions/workflows/checking.yml) [![Formatting](https://github.com/torrust/torrust-serde-bencode/actions/workflows/formatting.yml/badge.svg)](https://github.com/torrust/torrust-serde-bencode/actions/workflows/formatting.yml) [![Testing](https://github.com/torrust/torrust-serde-bencode/actions/workflows/testing.yaml/badge.svg)](https://github.com/torrust/torrust-serde-bencode/actions/workflows/testing.yaml) [![Benchmarking](https://github.com/torrust/torrust-serde-bencode/actions/workflows/benchmarking.yml/badge.svg)](https://github.com/torrust/torrust-serde-bencode/actions/workflows/benchmarking.yml) [![Coverage](https://github.com/torrust/torrust-serde-bencode/actions/workflows/coverage.yml/badge.svg)](https://github.com/torrust/torrust-serde-bencode/actions/workflows/coverage.yml)
 
 A [Serde](https://github.com/serde-rs/serde) backed [Bencode](https://en.wikipedia.org/wiki/Bencode)
 encoding/decoding library for Rust.