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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778#!/usr/bin/env bash## This script installs an up-to-date version of CMake.## For MacOS use Homebrew to install the latest version.## For Ubuntu use the official KitWare Apt repository with backports.# See: https://apt.kitware.com/## For other systems (RHEL 8.x, 9.x, AmazonLinux, SUSE, Fedora, Arch, etc)# use the official CMake installer script from KitWare.## Note this is similar to how GitHub Actions runners install cmake:# https://github.com/actions/runner-images/blob/main/images/ubuntu/scripts/build/install-cmake.sh## Upstream: 3.30.4 (2024-09-27)
set -euo pipefail
if [[ "$(uname -s)" == "darwin" ]]; then brew --version >/dev/null \ || echo "Error: Homebrew is required to install cmake on MacOS." && exit 1 echo "Installing cmake via Homebrew (can't pin to old versions)." brew install cmake exit 0elif [ "$(uname -s)" != "Linux" ]; then echo "Error: This script is intended for MacOS/Linux systems only." exit 1elif [ -z "${1:-}" ]; then echo "Usage: $0 [3.30.4]" exit 1fiCMAKE_VERSION="${CMAKE_VERSION:-${1:-3.30.4}}"
if [ "$(whoami)" = root ]; then SUDO=; else SUDO="$(command -v sudo || command -v doas || true)"; fi
if cmake --version 2>/dev/null | grep -q "$CMAKE_VERSION"; then echo "CMake $CMAKE_VERSION is already installed." exit 0elif [ -e /usr/local/bin/cmake ]; then echo "Warning: existing cmake found at /usr/local/bin/cmake. Skipping installation." exit 0elif [ -e /etc/apt/sources.list.d/kitware.list ]; then echo "Warning: existing KitWare repository found. Skipping installation." exit 0elif [ -e /etc/lsb-release ] && grep -qP 'DISTRIB_ID=Ubuntu' /etc/lsb-release; then curl -fsSL https://apt.kitware.com/keys/kitware-archive-latest.asc \ | $SUDO gpg --dearmor - \ | $SUDO tee /usr/share/keyrings/kitware-archive-keyring.gpg >/dev/null echo "deb [signed-by=/usr/share/keyrings/kitware-archive-keyring.gpg] https://apt.kitware.com/ubuntu/ $(lsb_release -cs) main" \ | $SUDO tee /etc/apt/sources.list.d/kitware.list >/dev/null $SUDO apt-get update $SUDO apt-get install -y kitware-archive-keyring cmakeelse arch="$(uname -m)" if [ "$arch" != "x86_64" ] && [ "$arch" != "aarch64" ]; then echo "Error. Only x86_64 and aarch64 are supported." exit 1 fi tempdir=$(mktemp -d) pushd "$tempdir" CMAKE_REPO="https://github.com/Kitware/CMake" CMAKE_INSTALLER="cmake-$CMAKE_VERSION-linux-$arch.sh" curl -fsSL --output cmake-$CMAKE_VERSION-SHA-256.txt \ "$CMAKE_REPO/releases/download/v$CMAKE_VERSION/cmake-$CMAKE_VERSION-SHA-256.txt" curl -fsSL --output $CMAKE_INSTALLER \ "$CMAKE_REPO/releases/download/v$CMAKE_VERSION/cmake-$CMAKE_VERSION-linux-$arch.sh" # workaround for old versions of sha256sum not having --ignore-missing grep -F "cmake-$CMAKE_VERSION-linux-$arch.sh" "cmake-$CMAKE_VERSION-SHA-256.txt" \ | sha256sum -c \ | grep -qP "^${CMAKE_INSTALLER}: OK" chmod +x cmake-$CMAKE_VERSION-linux-$arch.sh $SUDO ./cmake-$CMAKE_VERSION-linux-$arch.sh --prefix=/usr/local --skip-license popd rm -rf "$tempdir"fi