Integrate codecov.io on CI

.github/workflows/lazy.yaml

@@ -0,0 +1,30 @@
+# Lazy jobs running on master post merges.
+name: lazy
+on:
+  push:
+    branches: [master]
+
+jobs:
+  coverage:
+    name: Coverage
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+      - run: sudo apt-get update -y -qq
+      - run: sudo add-apt-repository ppa:kisak/kisak-mesa -y
+      - run: sudo apt-get update
+      - run: sudo apt install -y libxcb-xfixes0-dev mesa-vulkan-drivers
+      - name: Generate report
+        uses: actions-rs/tarpaulin@v0.1
+      - name: Upload to codecov.io
+        uses: codecov/codecov-action@v1
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+      - name: Archive code coverage results
+        uses: actions/upload-artifact@v1
+        with:
+          name: code-coverage-report
+          path: cobertura.xml

README.md

@@ -1,11 +1,13 @@
 <img align="right" width="25%" src="logo.png">
 
-This is an active GitHub mirror of the WebGPU implementation in Rust, which now lives in "gfx/wgpu" of [Mozilla-central](https://hg.mozilla.org/mozilla-central/file/tip/gfx/wgpu). Issues and pull requests are accepted, but some bidirectional synchronization may be involved.
+This github project is mirrored in "gfx/wgpu" of [Mozilla-central](https://hg.mozilla.org/mozilla-central/file/tip/gfx/wgpu).
+Issues and pull requests are welcome, but some bidirectional synchronization may be involved.
 
-# WebGPU
+# wgpu
 
 [![Matrix](https://img.shields.io/badge/Dev_Matrix-%23wgpu%3Amatrix.org-blueviolet.svg)](https://matrix.to/#/#wgpu:matrix.org) [![Matrix](https://img.shields.io/badge/User_Matrix-%23wgpu--users%3Amatrix.org-blueviolet.svg)](https://matrix.to/#/#wgpu-users:matrix.org)
 [![Build Status](https://github.com/gfx-rs/wgpu/workflows/CI/badge.svg)](https://github.com/gfx-rs/wgpu/actions)
+[![codecov.io](https://codecov.io/gh/gfx-rs/wgpu/branch/master/graph/badge.svg?token=84qJTesmeS)](https://codecov.io/gh/gfx-rs/wgpu)
 
 This is the core logic of an experimental [WebGPU](https://www.w3.org/community/gpu/) implementation. It's written in Rust and is based on [gfx-hal](https://github.com/gfx-rs/gfx) with help of [gpu-alloc](https://github.com/zakarumych/gpu-alloc) and [gpu-descriptor](https://github.com/zakarumych/gpu-descriptor). See the upstream [WebGPU specification](https://gpuweb.github.io/gpuweb/) (work in progress).