Add dummy coverage step

.github/workflows/nix.yml

@@ -49,7 +49,7 @@ jobs:
               cc: /usr/bin/clang-14
               cxx: /usr/bin/clang++-14
     runs-on: [self-hosted, heavy]
-    container: thejohnfreeman/rippled-build-ubuntu:12e19cd9034b
+    container: rippleci/rippled-build-ubuntu:aaf5e3e
     env:
       build_dir: .build
     steps:
@@ -125,7 +125,7 @@ jobs:
           - "-Dunity=ON"
     needs: dependencies
     runs-on: [self-hosted, heavy]
-    container: thejohnfreeman/rippled-build-ubuntu:12e19cd9034b
+    container: rippleci/rippled-build-ubuntu:aaf5e3e
     env:
       build_dir: .build
     steps:
@@ -159,3 +159,27 @@ jobs:
       - name: test
         run: |
           ${build_dir}/rippled --unittest --unittest-jobs $(nproc)
+
+
+  coverage:
+    strategy:
+      fail-fast: false
+      matrix:
+        platform:
+          - linux
+        compiler:
+          - gcc
+        configuration:
+          - Debug
+    needs: dependencies
+    runs-on: [self-hosted, heavy]
+    container: rippleci/rippled-build-ubuntu:aaf5e3e
+    env:
+      CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+    steps:
+      - name: upload coverage report
+        uses: codecov/codecov-action@v3
+        with:
+          files: dummy_coverage.xml
+          fail_ci_if_error: false
+          verbose: true

dummy_coverage.xml

@@ -0,0 +1,10 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<!DOCTYPE coverage SYSTEM 'http://cobertura.sourceforge.net/xml/coverage-04.dtd'>
+<coverage line-rate="0.0" branch-rate="0.0" lines-covered="0" lines-valid="0" branches-covered="0" branches-valid="0" complexity="0.0" timestamp="1702675543" version="gcovr 6.0">
+  <sources>
+    <source>..</source>
+  </sources>
+  <packages>
+  <!-- Remove this file when test coverage is actually available -->
+  </packages>
+</coverage>