Try tricking code coverage another way

Author: znicholls

.github/workflows/ci.yaml

@@ -97,13 +97,10 @@ jobs:
           uv-dependency-install-flags: "--all-extras --group tests"
       - name: Run tests
         run: |
-          rm -r src/example_fgen_basic
-          ln -s .venv/lib/python3.11/site-packages/example_fgen_basic src/example_fgen_basic
-          uv run --no-sync pytest -r a -v tests src --doctest-modules --doctest-report ndiff --cov=src --cov-report=term-missing --cov-report=xml
+
+          COV_DIR=`uv run --no-sync python -c 'from pathlib import  Path; import example_fgen_basic; print(Path(example_fgen_basic.__file__).parent)'`
+          uv run --no-sync pytest -r a -v tests src --doctest-modules --doctest-report ndiff --cov=${COV_DIR} --cov-report=term-missing --cov-report=xml
           uv run --no-sync coverage report
-          # Just in case, undo the changes to `src`
-          rm -r src/example_fgen_basic
-          git restore --staged . && git restore .
       - name: Upload coverage reports to Codecov with GitHub Action
         uses: codecov/codecov-action@v4.2.0
         env:

Makefile

@@ -6,6 +6,8 @@
 TEMP_FILE := $(shell mktemp)
 # Directory in which to build the Fortran when using a standalone build
 BUILD_DIR := build
+# Coverage directory - needed to trick code cov to look in the right place
+COV_DIR := $(shell uv run --no-sync python -c 'from pathlib import  Path; import example_fgen_basic; print(Path(example_fgen_basic.__file__).parent)')
 
 # A helper script to get short descriptions of each target in the Makefile
 define PRINT_HELP_PYSCRIPT
@@ -49,7 +51,7 @@ test:  ## run the tests (re-installs the package every time so you might want to
 	# because it is looking for lines in `src` to be run,
 	# but they're not because lines in `.venv` are run instead.
 	# We don't have a solution to this yet.
-	uv run --no-editable --reinstall-package example-fgen-basic pytest -r a -v -tests src -doctest-modules --doctest-report ndiff --cov=src
+	uv run --no-editable --reinstall-package example-fgen-basic pytest -r a -v tests src --doctest-modules --doctest-report ndiff --cov=$(COV_DIR)
 
 # Note on code coverage and testing:
 # You must specify cov=src.