fix CI: remove duplicate git init in test-cpp, add fail-fast: false, symlink clang-format, deduplicate cpp matrix entry

Author: timkpaine

.github/workflows/build.yaml

@@ -21,15 +21,15 @@ permissions:
 jobs:
   build:
     strategy:
+      fail-fast: false
       matrix:
         template:
           - python
-          # - cpp
+          - cpp
           - js
           - jupyter
           - rust
           - rustjswasm
-          - cpp
           - cppjswasm
         os:
           - ubuntu-latest
@@ -62,6 +62,7 @@ jobs:
       run: |
         if [[ "$RUNNER_OS" == "Linux" ]]; then
           sudo apt-get install -y clang-format-14
+          sudo ln -sf /usr/bin/clang-format-14 /usr/bin/clang-format
         elif [[ "$RUNNER_OS" == "macOS" ]]; then
           brew install clang-format
         fi

Makefile

@@ -64,7 +64,6 @@ test-python:
 
 test-cpp:
 	cd ../python-template-cpp && git config --global user.name "github-actions" && git config --global user.email "41898282+github-actions[bot]@users.noreply.github.c@example.com" && git init && git add . && git commit -m "initial commit"
-	cd ../python-template-cpp && git init && git add . && git commit -m "initial commit"
 	cd ../python-template-cpp && make develop
 	cd ../python-template-cpp && make lint
 	cd ../python-template-cpp && make checks