Tox: add a pep8 target

Adds a pep8, pep8-full targets to tox:
* pep8 target: runs pylint on the changed files
* pep8-full target: runs pylint on whole repo

Adds scripts to run pylint:
* stored in tools/

Documentation: changeed the command for running tests
(run_tests.sh -> tox). This runs the same set of tests as before.

JIRA: YARDSTICK-832

Change-Id: I652da87723682d958f3fcbc2eb4cd88422636a3b
Signed-off-by: Emma Foley <emma.l.foley@intel.com>

1 files changed, 59 insertions, 0 deletions

diff --git a/tools/coding-checks.sh b/tools/coding-checks.sh
new file mode 100644
index 000000000..4ee909988
--- /dev/null
+++ b/tools/coding-checks.sh
@@ -0,0 +1,59 @@
+#!/bin/sh
+# source: https://github.com/openstack/neutron/blob/master/tools/coding-checks.sh
+
+set -eu
+
+usage () {
+    echo "Usage: $0 [OPTION]..."
+    echo "Run Yardstick's coding check(s)"
+    echo ""
+    echo "  -Y, --pylint [<basecommit>] Run pylint check on the entire neutron module or just files changed in basecommit (e.g. HEAD~1)"
+    echo "  -h, --help                  Print this usage message"
+    echo
+    exit 0
+}
+
+process_options () {
+    i=1
+    while [ $i -le $# ]; do
+        eval opt=\$$i
+        case $opt in
+            -h|--help) usage;;
+            -Y|--pylint) pylint=1;;
+            *) scriptargs="$scriptargs $opt"
+        esac
+        i=$((i+1))
+    done
+}
+
+run_pylint () {
+    local target="${scriptargs:-all}"
+
+    if [ "$target" = "all" ]; then
+        files="ansible api tests yardstick"
+    else
+        case "$target" in
+            *HEAD*|*HEAD~[0-9]*) files=$(git diff --diff-filter=AM --name-only $target -- "*.py");;
+            *) echo "$target is an unrecognized basecommit"; exit 1;;
+        esac
+    fi
+
+    echo "Running pylint..."
+    echo "You can speed this up by running it on 'HEAD~[0-9]' (e.g. HEAD~0, this change only)..."
+    if [ -n "${files}" ]; then
+        pylint --rcfile=.pylintrc ${files}
+    else
+        echo "No python changes in this commit, pylint check not required."
+        exit 0
+    fi
+}
+
+scriptargs=
+pylint=1
+
+process_options $@
+
+if [ $pylint -eq 1 ]; then
+    run_pylint
+    exit 0
+fi