Add a bashate tox environment and address errors

Add a bashate environment for checking shell code quality.
Exclude bashate warnings:
 E006: Line too long:
 E010: The "do" should be on same line as for

In my opinion the places that trip these do not impact code readability

Change-Id: Iab0a34542c3938f127515291eca8f027f3accaa0

test-requirements.txt

@@ -10,6 +10,7 @@ testtools>=1.4.0 # MIT
 virtualenv>=13.1.0 # MIT
 setuptools!=24.0.0,!=34.0.0,!=34.0.1,!=34.0.2,!=34.0.3,!=34.1.0,!=34.1.1,!=34.2.0,!=34.3.0,!=34.3.1,!=34.3.2,!=36.2.0,>=16.0 # PSF/ZPL
 mock>=2.0.0 # BSD
+bashate>=0.5.1 # Apache-2.0
 
 # this is required for the docs build jobs
 sphinx>=1.6.2 # BSD

tools/build_wheels.sh

@@ -33,8 +33,7 @@
 
 versions="$*"
 
-if [ -z "$versions" ]
-then
+if [ -z "$versions" ] ; then
     echo "ERROR: Usage: $0 <version>" 1>&2
     echo "Example: $0 2.7 3.3 3.4" 1>&2
     exit 1

tools/grep-all.sh

@@ -14,13 +14,14 @@
 
 # Note(tonyb): Expand HEAD into something that's hopefully more human
 #              readable
-declare -a branches=($(git describe --always) origin/master
-                     origin/stable/pike
-                     origin/stable/ocata
-                     origin/stable/newton
+declare -a branches=(
+                        $(git describe --always) origin/master
+                        origin/stable/pike
+                        origin/stable/ocata
+                        origin/stable/newton
                     )
 
-function search() {
+function search {
     git grep -hEi "^${1}[=><!]" ${2} -- "${3}"
 }
 

tools/publish_constraints.sh

@@ -12,8 +12,7 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-function get_from_git()
-{
+function get_from_git {
     ref=$1
     series=$2
     path=${3:-publish/constraints/upper}
@@ -32,7 +31,7 @@ stable/*)
     get_from_git origin/$ZUUL_BRANCH $series
 ;;
 master)
-    # NOTE(tonyb): Publish EOL'd constraints files.  We do this here as a 
+    # NOTE(tonyb): Publish EOL'd constraints files.  We do this here as a
     # quick way to publish the data.  It can be removed anytime after the first
     # successful run
     for tag in juno-eol kilo-eol liberty-eol mitaka-eol ; do

tox.ini

@@ -42,6 +42,15 @@ commands = validate-projects {toxinidir}/projects.txt
 [testenv:pep8]
 commands = flake8
 
+[testenv:bashate]
+whitelist_externals = bash
+# E006: Line too long:
+# E010: The "do" should be on same line as for
+commands = bash -c "find {toxinidir}/tools      \
+                        -type f                 \
+                        -name \*.sh             \
+                        -print0 | xargs -0 bashate -v -iE006,E010"
+
 [testenv:docs]
 commands = python setup.py build_sphinx