ironic/tools/flake8wrap.sh
Zhenguo Niu 29b37065d7 tox: make it possible to run pep8 on current patch only
This makes tox use a simple wrapper around flake8 like
Nova, which can be told to restrict the check to only
files changed in the current command. This can be invoked
in a simple manner with 'tox -epep8 -- -HEAD'. Since most
commits only touch a handful of files, this will usually
be far faster than checking all source files.

To check an entire branch for bisectability it can be
automated via

  git rebase -i master -x 'tox -epep8 -- -HEAD'

Change-Id: I75b1cfe3198b1217f8b25877714a4af47ae7069f
2016-01-05 09:55:48 +08:00

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#!/bin/bash
#
# A simple wrapper around flake8 which makes it possible
# to ask it to only verify files changed in the current
# git HEAD patch.
#
# Intended to be invoked via tox:
#
# tox -epep8 -- -HEAD
#
if test "x$1" = "x-HEAD" ; then
shift
files=$(git diff --name-only HEAD~1 | tr '\n' ' ')
echo "Running flake8 on ${files}"
diff -u --from-file /dev/null ${files} | flake8 --diff "$@"
else
echo "Running flake8 on all files"
exec flake8 "$@"
fi