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ConformalLabpp/scripts/quality/clang-tidy 2.sh
Tarik Moussa 7b097fbdd1
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ci+licenses: promote 4 trivial gates to required CI + third-party license doc
Two reviewer-facing additions:

1. New `quality-gates` job in .gitea/workflows/cpp-tests.yml
   ──────────────────────────────────────────────────────────
   Runs in parallel with test-cgal after test-fast.  Installs
   `codespell` + `shellcheck` (apt) into the existing ci-cpp container,
   then executes four scripts strictly (exit 1 on any finding):
     * license-headers.sh   — 66/66 files carry SPDX MIT
     * cgal-conventions.py  — 0 violations across 6 CGAL public headers
     * codespell.sh         — 0 typos across docs + source + scripts
     * shellcheck.sh        — 0 findings across 16 shell scripts

   Each ran at 0 findings locally for weeks before promotion.  The
   gates are now contractual: a regression fails the PR.  Total
   wall-time on the eulernest runner: ~30 s.

2. New code/deps/THIRD-PARTY-LICENSES.md
   ──────────────────────────────────────
   Enumerates every vendored dependency under code/deps/, plus the
   auto-fetched GoogleTest, plus the system-required Boost, with:
     * upstream project + version + SPDX identifier
     * compatibility note for MIT distribution
     * a downstream-packager license matrix (header-only consumer
       vs CLI binary) clarifying the LGPL §3 vs §4 distinction
       relevant to CGAL's header-only consumption

   Required for any future Linux-distribution packaging and for the
   CGAL submission's compliance check.  Cross-referenced from
   doc/architecture/dependencies.md.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-24 20:06:58 +02:00

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#!/usr/bin/env bash
# scripts/quality/clang-tidy.sh
#
# Run clang-tidy over every public header under code/include/. We use
# `--use-color` and tee output to build-tidy/clang-tidy.log for later
# diffing.
#
# Local-only. The check is exploratory until we agree on which warning
# classes are reasonable to enforce — CGAL header-only code triggers a
# lot of `modernize-*` / `readability-*` warnings that are upstream's
# choice, not ours. See `.clang-tidy` for the curated subset.
#
# Usage:
# bash scripts/quality/clang-tidy.sh # all headers
# bash scripts/quality/clang-tidy.sh code/include/CGAL # subset
#
# Prerequisite: a compile_commands.json with the right include paths
# (cmake generates this automatically with CMAKE_EXPORT_COMPILE_COMMANDS=ON).
#
# Exit codes:
# 0 clang-tidy ran (output captured)
# 1 clang-tidy reported at least one error (post-policy filter)
# 2 prerequisite missing
set -euo pipefail
ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
cd "$ROOT"
BUILD_DIR="build-tidy"
LOG="$BUILD_DIR/clang-tidy.log"
command -v clang-tidy >/dev/null 2>&1 || {
echo "FAIL: clang-tidy not in PATH." >&2
echo " macOS: brew install llvm && export PATH=\"\$(brew --prefix llvm)/bin:\$PATH\"" >&2
echo " Linux: sudo apt install clang-tidy" >&2
exit 2
}
TARGET_DIR="${1:-code/include}"
[ -d "$TARGET_DIR" ] || { echo "FAIL: $TARGET_DIR is not a directory" >&2; exit 2; }
# Generate compile_commands.json (clang-tidy needs it for include paths).
# Enable WITH_CGAL_TESTS so the CGAL include directories are part of at
# least one compile entry — clang-tidy walks those when linting headers
# that don't appear in compile_commands.json directly.
cmake -S code -B "$BUILD_DIR" \
-DCMAKE_EXPORT_COMPILE_COMMANDS=ON \
-DWITH_CGAL_TESTS=ON \
-DCMAKE_BUILD_TYPE=Release \
-Wno-dev >/dev/null
# ── macOS workaround: brew-installed clang-tidy doesn't know where the
# Apple Command-Line-Tools SDK lives, so it can't find <cmath>, <complex>,
# <CGAL/...>, etc. Pass `--extra-arg=-isysroot ...` to teach it.
EXTRA_ARGS=()
if [ "$(uname -s)" = "Darwin" ]; then
SDK="$(xcrun --show-sdk-path 2>/dev/null || true)"
if [ -n "$SDK" ]; then
EXTRA_ARGS+=(--extra-arg=-isysroot --extra-arg="$SDK")
fi
fi
mkdir -p "$BUILD_DIR"
: > "$LOG"
# Find every .h / .hpp under TARGET_DIR (skip deps + macOS dup files +
# viewer-only headers — those need `-DWITH_VIEWER=ON` plus a system
# GLFW/libigl that we don't drag into the lint build).
HEADERS=$(find "$TARGET_DIR" \
\( -name "*.h" -o -name "*.hpp" \) \
-type f \
| grep -v "code/deps/" \
| grep -v " 2\." \
| grep -v "viewer_utils\.h$" \
| grep -v "mesh_utils\.hpp$" \
| sort)
echo "========================================"
echo " clang-tidy run"
echo " target: $TARGET_DIR"
echo " config: .clang-tidy"
echo " log: $LOG"
echo "========================================"
echo
n=0
for h in $HEADERS; do
n=$((n + 1))
echo "── [$n] $h ─────────────────────────────────"
# Use --quiet so we only see actual diagnostics, not "n warnings
# generated" boilerplate. Pipe through tee for the log file.
clang-tidy --quiet \
-p "$BUILD_DIR" \
"${EXTRA_ARGS[@]}" \
"$h" 2>&1 | tee -a "$LOG" || true
done
echo
echo "── Summary ──────────────────────────────────"
warn=$(grep -c "warning:" "$LOG" || true)
err=$(grep -c "error:" "$LOG" || true)
echo " files inspected: $n"
echo " warnings: $warn"
echo " errors: $err"
echo " full log: $LOG"
if [ "${err:-0}" -gt 0 ]; then
exit 1
fi
exit 0