Add --noformat option for unit test

The run-unit-test-docker.sh and unit-test.py will run format-code.sh to
check the code format, and break when the code is not formatted
correctly.

For local-ci, this is unecessary because the code not "git add" or not
committed is treated as not-formatted and will break.

Adding NO_FORMAT_CODE option to make the unit test skip formatting the
code, so that one could write code in local repo, run the local-ci
without having to git add ro commit the changes.

Tested: Run run-unit-test-docker.sh as before, verify the format-code.sh
        is invoked;
        Run 'NO_FORMAT_CODE=1 run-unit-test-docker.sh', verify the
        format-code.sh is not invoked.

Signed-off-by: Lei YU <mine260309@gmail.com>
Change-Id: Ib3b6cf34390c91d551bc14613e925b8e51a3065f
diff --git a/run-unit-test-docker.sh b/run-unit-test-docker.sh
index 18e7e6a..b178fa4 100755
--- a/run-unit-test-docker.sh
+++ b/run-unit-test-docker.sh
@@ -24,6 +24,7 @@
 #                    -$BRANCH replacing -master if $BRANCH provided
 #   dbus_sys_config_file: Optional, with the default being
 #                         `/usr/share/dbus-1/system.conf`
+#   NO_FORMAT_CODE:  Optional, do not run format-code.sh
 
 # Trace bash processing. Set -e so when a step fails, we fail the build
 set -uo pipefail
@@ -41,6 +42,7 @@
 DBUS_SYS_CONFIG_FILE=${dbus_sys_config_file:-"/usr/share/dbus-1/system.conf"}
 MAKEFLAGS="${MAKEFLAGS:-""}"
 DOCKER_WORKDIR="${DOCKER_WORKDIR:-$WORKSPACE}"
+NO_FORMAT_CODE="${NO_FORMAT_CODE:-}"
 
 # Timestamp for job
 echo "Unit test build started, $(date)"
@@ -90,7 +92,7 @@
 
 # Unit test and parameters
 UNIT_TEST="${DOCKER_WORKDIR}/${UNIT_TEST_PY},-w,${DOCKER_WORKDIR},\
--p,${UNIT_TEST_PKG},-b,$BRANCH,-v${TEST_ONLY:+,-t}"
+-p,${UNIT_TEST_PKG},-b,$BRANCH,-v${TEST_ONLY:+,-t}${NO_FORMAT_CODE:+,-n}"
 
 # Run the docker unit test container with the unit test execution script
 echo "Executing docker image"