Merge pull request #105 from bluesky/100-code-style

apply black -l 75 to all code

.flake8

@@ -5,6 +5,7 @@ exclude =
     build,
     dist,
     versioneer.py,
-    docs/source
+    docs/source,
+    hkl/_version.py
 max-line-length = 115
-ignore: W504,W503,E741,E402,E226
+ignore: E226,E402,E741,W503,W504

.github/workflows/black.yml

@@ -0,0 +1,11 @@
+name: Lint
+
+on: [push, pull_request]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+      - uses: psf/black@stable

Makefile

@@ -0,0 +1,23 @@
+# Makefile
+
+# Simplify the pre-commit checks for the code developer.
+
+all :: black flake8 pytest examples clean_docs html
+
+black ::
+	black .
+
+clean_docs ::
+	make -C docs clean
+
+examples ::
+	make -C examples
+
+flake8 ::
+	flake8
+
+html ::
+	make -C docs html
+
+pytest ::
+	pytest