Add yapf formatting check to CI
Signed-off-by: Ravago Jones <ravagojones@gmail.com>
Change-Id: Iba338003cee4bbab3a059c968f703930286af48d
diff --git a/tools/lint/yapf.sh b/tools/lint/yapf.sh
new file mode 100755
index 0000000..404d5fd
--- /dev/null
+++ b/tools/lint/yapf.sh
@@ -0,0 +1,27 @@
+#!/bin/bash
+
+# --- begin runfiles.bash initialization v2 ---
+# Copy-pasted from the Bazel Bash runfiles library v2.
+set -uo pipefail; f=bazel_tools/tools/bash/runfiles/runfiles.bash
+source "${RUNFILES_DIR:-/dev/null}/$f" 2>/dev/null || \
+ source "$(grep -sm1 "^$f " "${RUNFILES_MANIFEST_FILE:-/dev/null}" | cut -f2- -d' ')" 2>/dev/null || \
+ source "$0.runfiles/$f" 2>/dev/null || \
+ source "$(grep -sm1 "^$f " "$0.runfiles_manifest" | cut -f2- -d' ')" 2>/dev/null || \
+ source "$(grep -sm1 "^$f " "$0.exe.runfiles_manifest" | cut -f2- -d' ')" 2>/dev/null || \
+ { echo>&2 "ERROR: cannot find $f"; exit 1; }; f=; set -e
+# --- end runfiles.bash initialization v2 ---
+
+readonly YAPF="$(rlocation python_yapf/python_yapf)"
+
+# Run everything from the root of the tree.
+cd "${BUILD_WORKSPACE_DIRECTORY}"
+
+# Find all the Python files in the repo.
+python_files=($(git ls-tree --name-only --full-tree -r @ \
+ | grep -v '^third_party/' \
+ | (grep '\.py$' || :)))
+
+# If we have any Python files, format them.
+if ((${#python_files[@]} > 0)); then
+ exec "${YAPF}" --in-place --parallel --verbose "${python_files[@]}"
+fi