Add first coverage workflow

github/workflows/coverage.yml

@@ -0,0 +1,66 @@
+on:
+  push:
+    branches: [master]
+    paths-ignore:
+      - 'build_doc.sh'
+      - 'check.sh'
+      - 'run_ci_tests.sh'
+      - 'start_sshd.sh'
+      - 'stop_sshd.sh'
+  pull_request:
+    paths-ignore:
+      - 'build_doc.sh'
+      - 'check.sh'
+      - 'run_ci_tests.sh'
+      - 'start_sshd.sh'
+      - 'stop_sshd.sh'
+name: coverage
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+          components: llvm-tools-preview
+      - name: Install cargo-llvm-cov
+        uses: taiki-e/install-action@cargo-llvm-cov
+      - run: |
+          # Wait for startup of openssh-server
+          timeout 15 ./wait_for_sshd_start_up.sh
+          chmod 600 .test-key
+          mkdir /tmp/openssh-rs
+          ssh -i .test-key -v -p 2222 -l test-user localhost -o StrictHostKeyChecking=accept-new -o UserKnownHostsFile=/tmp/openssh-rs/known_hosts whoami
+        name: Test ssh connectivity
+      - run: |
+          eval $(ssh-agent)
+          echo "SSH_AUTH_SOCK=$SSH_AUTH_SOCK" >> $GITHUB_ENV
+          echo "SSH_AGENT_PID=$SSH_AGENT_PID" >> $GITHUB_ENV
+          cat .test-key | ssh-add -
+        name: Set up ssh-agent
+      - name: Generate code coverage
+        run: cargo llvm-cov --all-features --lcov --output-path lcov.info
+        env:
+          # makes all the ignored tests not ignored
+          RUSTFLAGS: --cfg=ci
+          # we cannot use 127.0.0.1 (the default here)
+          # since we are running from a different container
+          TEST_HOST: ssh://test-user@localhost:2222
+          XDG_RUNTIME_DIR: /tmp
+      - name: Upload to codecov.io
+        uses: codecov/codecov-action@v2
+        with:
+          fail_ci_if_error: true
+    services:
+      openssh:
+        image: linuxserver/openssh-server:amd64-latest
+        ports:
+          - 2222:2222
+        env:
+          USER_NAME: test-user
+          PUBLIC_KEY: |-
+            ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGzHvK2pKtSlZXP9tPYOOBb/xn0IiC9iLMS355AYUPC7
+          DOCKER_MODS: linuxserver/mods:openssh-server-ssh-tunnel