Pre-Commit

.github/workflows/cicd.yml

@@ -35,6 +35,10 @@ jobs:
       uses: actions/setup-python@v2
       with:
         python-version: ${{ matrix.python-version }}
+    - name: Pre-commit Checks
+      run: |
+        pip -q install pre-commit
+        pre-commit run --all-files
     - name: Start from clean state
       run: make clean
     - name: Run tests

.gitignore

@@ -2,6 +2,7 @@
 *.swp
 .DS_Store
 .idea/
+.venv-pre-commit/
 __pycache__
 build/
 case_utils.egg-info/

.pre-commit-config.yaml

@@ -0,0 +1,5 @@
+repos:
+-   repo: https://github.com/psf/black
+    rev: 22.3.0
+    hooks:
+    -   id: black

CONTRIBUTE.md

@@ -33,3 +33,14 @@ make check
 git commit -m "Build CASE 0.6.0 monolithic .ttl files" case_utils/ontology/case-0.6.0-subclasses.ttl case_utils/ontology/case-0.6.0.ttl
 git commit -m "Update CASE ontology pointer to version 0.6.0" dependencies/CASE case_utils/ontology/version_info.py
 ```
+
+This project uses [the `pre-commit` tool](https://pre-commit.com/) for linting The easiest way to install it is with `pip`:
+```bash
+pip install pre-commit
+pre-commit --version
+```
+
+The `pre-commit` tool hooks into Git's commit machinery to run a set of linters and static analyzers over each change. To install `pre-commit` into Git's hooks, run:
+```bash
+pre-commit install
+```

Makefile

@@ -21,7 +21,8 @@ $(error Unable to determine CASE version)
 endif
 
 all: \
-  .ontology.done.log
+  .ontology.done.log \
+  .venv-pre-commit/var/.pre-commit-built.log
 
 .PHONY: \
   download
@@ -54,8 +55,32 @@ all: \
 	test -r case_utils/ontology/case-$(case_version)-subclasses.ttl
 	touch $@
 
+# This virtual environment is meant to be built once and then persist, even through 'make clean'.
+# If a recipe is written to remove this flag file, it should first run `pre-commit uninstall`.
+.venv-pre-commit/var/.pre-commit-built.log:
+	rm -rf .venv-pre-commit
+	test -r .pre-commit-config.yaml \
+	  || (echo "ERROR:Makefile:pre-commit is expected to install for this repository, but .pre-commit-config.yaml does not seem to exist." >&2 ; exit 1)
+	$(PYTHON3) -m venv \
+	  .venv-pre-commit
+	source .venv-pre-commit/bin/activate \
+	  && pip install \
+	    --upgrade \
+	    pip \
+	    setuptools \
+	    wheel
+	source .venv-pre-commit/bin/activate \
+	  && pip install \
+	    pre-commit
+	source .venv-pre-commit/bin/activate \
+	  && pre-commit install
+	mkdir -p \
+	  .venv-pre-commit/var
+	touch $@
+
 check: \
-  .ontology.done.log
+  .ontology.done.log \
+  .venv-pre-commit/var/.pre-commit-built.log
 	$(MAKE) \
 	  PYTHON3=$(PYTHON3) \
 	  --directory tests \

tests/Makefile

@@ -67,17 +67,6 @@ check: \
 	    --ignore case_utils \
 	    --log-level=DEBUG
 
-# TODO - Need to settle on policy for incorporating this and 'format' recipe into CI.
-# https://case.atlassian.net/browse/AC-215
-# https://case.atlassian.net/browse/AC-216
-check-black: \
-  .venv.done.log
-	source venv/bin/activate \
-	  && black \
-	    --check \
-	    $(top_srcdir)/case_utils \
-	    $$PWD
-
 check-case_utils: \
   .venv.done.log
 	$(MAKE) \
@@ -114,13 +103,3 @@ clean:
 
 download: \
   .venv.done.log
-
-# TODO - Need to settle on policy for incorporating this and 'check-black' recipe into CI.
-# https://case.atlassian.net/browse/AC-215
-# https://case.atlassian.net/browse/AC-216
-format: \
-  .venv.done.log
-	source venv/bin/activate \
-	  && black \
-	    $(top_srcdir)/case_utils \
-	    $$PWD

tests/requirements.txt

@@ -1,5 +1,4 @@
 PyLD
-black
 mypy
 pytest
 python-dateutil