kvcache-ai-ktransformers/kt-kernel/.githooks/pre-commit
2025-10-24 14:32:45 +08:00

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#!/usr/bin/bash
# Pre-commit hook: run clang-format via CMake 'format' target and Black for Python before allowing commit.
# If formatting makes changes, stage them and abort so user can review.
set -euo pipefail
REPO_ROOT="$(git rev-parse --show-toplevel)"
BUILD_DIR="$REPO_ROOT/build"
FORMAT_TARGET="format"
CLANG_FORMAT_BIN="${CLANG_FORMAT_BIN:-clang-format}"
BLACK_BIN="${BLACK_BIN:-black}"
# Simple check clang-format present (optional)
# clang-format optional: if missing, skip C/C++ formatting
if ! command -v "$CLANG_FORMAT_BIN" >/dev/null 2>&1; then
echo "[pre-commit] clang-format not found (looked for $CLANG_FORMAT_BIN). Skipping C/C++ format." >&2
fi
# black optional: if missing, skip Python formatting
if ! command -v "$BLACK_BIN" >/dev/null 2>&1; then
echo "[pre-commit] black not found (looked for $BLACK_BIN). Skipping Python format." >&2
fi
# Configure build directory if missing (quiet)
if [ ! -d "$BUILD_DIR" ] || [ ! -f "$BUILD_DIR/Makefile" ] && [ ! -f "$BUILD_DIR/build.ninja" ]; then
echo "[pre-commit] configuring project (cmake) ..." >&2
cmake -S "$REPO_ROOT" -B "$BUILD_DIR" >/dev/null
fi
# Run format target (prefer ninja if present)
# Run clang-format target when available and tool present
if command -v "$CLANG_FORMAT_BIN" >/dev/null 2>&1; then
if [ -f "$BUILD_DIR/build.ninja" ]; then
(cd "$BUILD_DIR" && ninja -k0 "$FORMAT_TARGET" >/dev/null)
else
(cd "$BUILD_DIR" && make "$FORMAT_TARGET")
fi
fi
# Run black on staged python files (or entire repo if you prefer)
if command -v "$BLACK_BIN" >/dev/null 2>&1; then
# Get staged python files; if none, skip
PY_FILES=$(git diff --cached --name-only --diff-filter=ACM | grep -E '\.py$' || true)
if [ -n "$PY_FILES" ]; then
echo "[pre-commit] running black on staged python files..." >&2
$BLACK_BIN $PY_FILES
else
# Optionally format all python files; comment out if not desired
# $BLACK_BIN "$REPO_ROOT"
:
fi
fi
# Stage any formatting changes for tracked files
if ! git diff --quiet --exit-code; then
echo "[pre-commit] Formatting applied; updating index." >&2
# Add only modified tracked files (exclude untracked new files not staged yet unless user staged them)
git add -u
echo "[pre-commit] Re-run git commit to proceed after reviewing changes." >&2
exit 1
fi
echo "[pre-commit] format OK." >&2
exit 0