use clang-tidy 18

.github/workflows/dependencies/clang18.sh

@@ -0,0 +1,69 @@
+#!/usr/bin/env bash
+#
+# Copyright 2024 The WarpX Community
+#
+# License: BSD-3-Clause-LBNL
+# Authors: Luca Fedeli
+
+set -eu -o pipefail
+
+# `man apt.conf`:
+#   Number of retries to perform. If this is non-zero APT will retry
+#   failed files the given number of times.
+echo 'Acquire::Retries "3";' | sudo tee /etc/apt/apt.conf.d/80-retries
+
+# This dependency file is currently used within a docker container,
+# which does not come (among others) with wget, xz-utils, curl, git,
+# ccache, and pkg-config pre-installed.
+sudo apt-get -qqq update
+sudo apt-get install -y \
+    cmake               \
+    clang-18            \
+    clang-tidy-18       \
+    libblas-dev         \
+    libc++-18-dev       \
+    libboost-math-dev   \
+    libfftw3-dev        \
+    libfftw3-mpi-dev    \
+    libhdf5-openmpi-dev \
+    liblapack-dev       \
+    libopenmpi-dev      \
+    libomp-18-dev       \
+    ninja-build         \
+    wget                \
+    xz-utils            \
+    curl                \
+    git                 \
+    ccache              \
+    pkg-config
+
+# ccache
+$(dirname "$0")/ccache.sh
+
+# Use clang 18
+export CXX=$(which clang++-18)
+export CC=$(which clang-18)
+
+# cmake-easyinstall
+#
+sudo curl -L -o /usr/local/bin/cmake-easyinstall https://raw.githubusercontent.com/ax3l/cmake-easyinstall/main/cmake-easyinstall
+sudo chmod a+x /usr/local/bin/cmake-easyinstall
+export CEI_SUDO="sudo"
+export CEI_TMP="/tmp/cei"
+
+# BLAS++ & LAPACK++
+cmake-easyinstall \
+  --prefix=/usr/local                           \
+  git+https://github.com/icl-utk-edu/blaspp.git \
+  -Duse_openmp=OFF                              \
+  -Dbuild_tests=OFF                             \
+  -DCMAKE_CXX_COMPILER_LAUNCHER=$(which ccache) \
+  -DCMAKE_VERBOSE_MAKEFILE=ON
+
+cmake-easyinstall \
+  --prefix=/usr/local                             \
+  git+https://github.com/icl-utk-edu/lapackpp.git \
+  -Duse_cmake_find_lapack=ON                      \
+  -Dbuild_tests=OFF                               \
+  -DCMAKE_CXX_COMPILER_LAUNCHER=$(which ccache)   \
+  -DCMAKE_VERBOSE_MAKEFILE=ON