#!/bin/sh

set -e

readonly version="3.23.1"

case "$(uname -s)-$(uname -m)" in
    Linux-x86_64)
        shatool="sha256sum"
        sha256sum="f3c654b2e226b9d43369e0bd8487c51618d4dbe5a1af929dd32af7e6ca432d60"
        platform="linux-x86_64"
        ;;
    Linux-aarch64)
        shatool="sha256sum"
        sha256sum="74062efddeb935bce3d33694a4db534cef9a650f77a9a153a9f217d9dc385c75"
        platform="linux-aarch64"
        ;;
    Darwin-*)
        shatool="shasum -a 256"
        sha256sum="f794ed92ccb4e9b6619a77328f313497d7decf8fb7e047ba35a348b838e0e1e2"
        platform="macos-universal"
        ;;
    *)
        echo "Unrecognized platform $(uname -s)-$(uname -m)"
        exit 1
        ;;
esac
readonly shatool
readonly sha256sum
readonly platform

readonly filename="cmake-$version-$platform"
readonly tarball="$filename.tar.gz"

cd .gitlab

echo "$sha256sum  $tarball" > cmake.sha256sum
curl -OL "https://github.com/Kitware/CMake/releases/download/v$version/$tarball"
$shatool --check cmake.sha256sum
tar xf "$tarball"
mv "$filename" cmake

if [ "$( uname -s )" = "Darwin" ]; then
    ln -s CMake.app/Contents/bin cmake/bin
fi