[CI] Deploy coverage pages (#488)

- Deploy coverage to GitHub Pages
- Link to coverage report in the README
- Reuse existing coverage artifact for deployment

resolves #329

Author: aobolensk

.github/workflows/main.yml

@@ -36,3 +36,8 @@ jobs:
       - mac
       - windows
     uses: ./.github/workflows/perf.yml
+
+  pages:
+    needs:
+      - perf
+    uses: ./.github/workflows/pages.yml

.github/workflows/pages.yml

@@ -1,8 +1,7 @@
 name: Pages
 
 on:
-  push:
-  pull_request:
+  workflow_call:
   workflow_dispatch:
 
 permissions:
@@ -110,6 +109,11 @@ jobs:
         with:
           name: scoreboard
           path: ./scoreboard/
+      - name: Download coverage artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: cov-report
+          path: ./coverage/
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v3
         with:

README.md

@@ -6,6 +6,7 @@
 # Parallel Programming Course
 Welcome to the Parallel Programming Course! For more detailed documentation and resources, please visit documentation pages: [en](https://learning-process.github.io/parallel_programming_course/en/), [ru](https://learning-process.github.io/parallel_programming_course/ru/).
 Course scoreboard is available [here](https://learning-process.github.io/parallel_programming_course/scoreboard/)
+Coverage report is available [here](https://learning-process.github.io/parallel_programming_course/coverage/)
 
 ### Parallel programming technologies:
   The following parallel programming technologies are considered in practice: