1 files changed, 13 insertions, 1 deletions
diff --git a/tox.ini b/tox.ini
index 11c541a..1606b9b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,7 +1,7 @@
 
 [tox]
 skipsdist=True
-envlist = py3, pylint
+envlist = py3, pylint, flake8diff
 
 [testenv]
 distribute = False
@@ -29,3 +29,15 @@ commands = bash -c "pylint --reports=y osdf apps runtime| tee pylint.out"
 
 [testenv:py3]
 basepython=python3.6
+
+[testenv:flake8diff]
+whitelist_externals=bash
+deps = hacking>=2.0.0
+commands =
+  bash -c "files=$(git diff HEAD^ HEAD --diff-filter=d --name-only | grep -E '(^apps\/|osdf\/|runtime\/)'| grep -E '*\.py$'); if [[ -z $files ]]; then exit 0; else flake8 $files; fi"
+
+[flake8]
+select = E,H,W,F
+max-line-length = 119
+ignore =
+per-file-ignores=