add python code style lint and format

.editorconfig

@@ -0,0 +1,19 @@
+# EditorConfig helps developers define and maintain consistent
+# coding styles between different editors and IDEs
+# http://editorconfig.org
+
+root = true
+
+[*]
+# We recommend you to keep these unchanged
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.py]
+indent_style = space
+indent_size = 4
+
+[Makefile]
+indent_style = tab

Makefile

@@ -10,8 +10,10 @@ SMALL ?= 'tests/small'
 MEDIUM ?= 'tests/medium'
 LARGE ?= 'tests/large'
 XLARGE ?= 'tests/xlarge'
+NEWLY_ADDED_PY_FILES = $(shell git ls-files -o --exclude-standard | grep -E '\.py$$')
+CHANGED_ADDED_PY_FILES = $(shell git ls-files -mo --exclude-standard | grep -E '\.py$$')
 
-.PHONY: tests
+.PHONY: tests, lint, format
 
 all: egg
 
@@ -101,3 +103,24 @@ docs:
 
 build_spl: clean
 	python -m splunk_eventgen build --destination ./
+
+lint:
+ifeq ($(NEWLY_ADDED_PY_FILES), )
+	@echo 'No newly added python files. Skip...'
+else
+	@flake8 $(NEWLY_ADDED_PY_FILES) || true
+endif
+	@git diff -U0 -- '*.py' | flake8 --diff || true
+
+format:
+ifeq ($(CHANGED_ADDED_PY_FILES), )
+	@echo 'No changed python files. Skip...'
+else
+	@isort $(CHANGED_ADDED_PY_FILES)
+endif
+ifeq ($(NEWLY_ADDED_PY_FILES), )
+	@echo 'No newly added python files. Skip...'
+else
+	@yapf -i $(NEWLY_ADDED_PY_FILES)
+endif
+

setup.cfg

@@ -1,7 +1,12 @@
 [flake8]
-exclude = .git,.tox,__pycache__,env,venv
+exclude = .git,.tox,__pycache__,env,venv,build,dist,docs
 max-line-length = 120
 
 [metadata]
 description-file = README.md
 version-from-file: __init__.py
+
+[yapf]
+based_on_style = pep8
+spaces_before_comment = 4
+split_before_logical_operator = true

setup.py

@@ -14,10 +14,12 @@
 except(IOError, ImportError):
     long_description = open('README.md').read()
 
+
 def readme():
     with open('README.md') as f:
         return f.read()
 
+
 setup(
     name='splunk_eventgen',
     version=VERSION,
@@ -38,18 +40,21 @@ def readme():
     packages=find_packages(),
     package_data={"splunk_eventgen": ['*.sh', '*.txt', '*.yml'], '': ['*.sh', '*.txt', '*.yml']},
     install_requires=[
-        'pytest>=3.0.0', # Required to test functional tests in eventgen.
+        'pytest>=3.0.0',  # Required to test functional tests in eventgen.
         'boto3',
         'requests>=2.18.4',
         'requests[security]',
         'logutils>=0.3.4.1',
         'futures>=3.0.5',
-        'ujson>=1.35', # way faster implementation of JSON processing
+        'ujson>=1.35',  # way faster implementation of JSON processing
         'pyyaml',
         'httplib2',
         'jinja2',
         'pyrabbit==1.1.0',
         'urllib3==1.23',
-        'pyOpenSSL'
+        'pyOpenSSL',
+        'flake8>=3.7.7',
+        'yapf>=0.26.0',
+        'isort>=4.3.15'
     ]
     )