Add pre-commit and auto-formatting with black

.pre-commit-config.yaml

@@ -0,0 +1,24 @@
+exclude: '^/ccdproc/extern/.*.py|.*\.fits?$'
+  # ^/ccdproc/extern/.*.py   # Ignore files in the extern directory
+  # | .*\.fits?$             # Ignore FITS files
+repos:
+  -   repo: https://github.com/pre-commit/pre-commit-hooks
+      rev: v3.2.0
+      hooks:
+      -   id: check-yaml
+      -   id: end-of-file-fixer
+      -   id: trailing-whitespace
+      -   id: check-added-large-files
+
+
+  # Using this mirror lets us use mypyc-compiled black, which is about 2x faster
+  - repo: https://github.com/psf/black-pre-commit-mirror
+    rev: 24.8.0
+    hooks:
+      - id: black
+        # It is recommended to specify the latest version of Python
+        # supported by your project here, or alternatively use
+        # pre-commit's default_language_version, see
+        # https://pre-commit.com/#top_level-default_language_version
+        language_version: python3.12
+        extend-exclude: '^/ccdproc/extern/.*.py|.*\.fits?$'

pyproject.toml

@@ -32,6 +32,7 @@ docs = [
 test = [
     "black",
     "memory_profiler",
+    "pre-commit",
     "pytest-astropy>=0.10.0",
 ]
 
@@ -51,14 +52,15 @@ include = [
 
 [tool.black]
 line-length = 88
-target-version = ['py310', 'py311']
+target-version = ['py310', 'py311', 'py312']
 include = '\.pyi?$|\.ipynb$'
 # 'extend-exclude' excludes files or directories in addition to the defaults
 extend-exclude = '''
 # A regex preceded with ^/ will apply only to files and directories
 # in the root of the project.
 (
-  ^/ccdproc/extern
+  ^/ccdproc/extern/.*.py   # Ignore files in the extern directory
+  | .*\.fits?$             # Ignore FITS files
 )
 '''