zephyr: zmake: Skip running flake8 on BUILD.py files during pre-upload

flake8 reports more errors than necessary on BUILD.py files because:

- They are out of the zmake tree, and therefore do not have the
  correct .flake8 config file.
- flake8 is confused by undefined variables like "here" and
  "register_project", which come from the execution context zmake
  provides.

These are just config files anyway, running flake8 on them is likely
overkill.  Turn that off.

BUG=none
BRANCH=none
TEST=for f in $(git ls-files); do
         zephyr/zmake/pre-upload.sh "$(realpath "${f}")"
     done

Signed-off-by: Jack Rosenthal <jrosenth@chromium.org>
Change-Id: Ia6eae025ec560d3f6dbdc5c8a4ce50d7b9b94459
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3630476
Reviewed-by: Jeremy Bettis <jbettis@chromium.org>

1 files changed, 12 insertions, 4 deletions

diff --git a/zephyr/zmake/pre-upload.sh b/zephyr/zmake/pre-upload.sh
index 3c2c42b49e..15b6637f44 100755
--- a/zephyr/zmake/pre-upload.sh
+++ b/zephyr/zmake/pre-upload.sh
@@ -4,16 +4,22 @@
 # found in the LICENSE file.
 set -e
 
-AFFECTED_FILES=()
+ZMAKE_FILES=()
+BUILD_PY_FILES=()
 
 for path in "$@"; do
     case "${path}" in
-        *zephyr/zmake/*.py | *zephyr/projects/*.py)
-            AFFECTED_FILES+=("${path}")
+        *zephyr/zmake/*.py )
+            ZMAKE_FILES+=("${path}")
+            ;;
+        */BUILD.py )
+            BUILD_PY_FILES+=("${path}")
             ;;
     esac
 done
 
+AFFECTED_FILES=("${ZMAKE_FILES[@]}" "${BUILD_PY_FILES[@]}")
+
 if [ "${#AFFECTED_FILES}" -eq 0 ]; then
     # No zmake changes made, do nothing.
     exit 0
@@ -46,7 +52,9 @@ if [ -f /etc/cros_chroot_version ]; then
     cd "$(dirname "$(realpath -e "${BASH_SOURCE[0]}")")"
     wrap_fix_msg black --check --diff "${AFFECTED_FILES[@]}"
     wrap_fix_msg isort --check "${AFFECTED_FILES[@]}"
-    flake8 "${AFFECTED_FILES[@]}" || EXIT_STATUS=1
+    if [ "${#ZMAKE_FILES[@]}" -gt 0 ]; then
+        flake8 "${ZMAKE_FILES[@]}" || EXIT_STATUS=1
+    fi
     exit "${EXIT_STATUS}"
 else
     cat <<EOF >&2