banan-os/script/check-requirements.sh

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#!/bin/bash
CMAKE_VERSION_REQUIRED="3.26"
version_atleast() {
[ "$1" = "$(echo -e "$1\n$2" | sort -rV | head -n1)" ]
}
download_cmake() {
read -e -p "Do you want to download it [y/N]? " choice
if ! [[ "$choice" == [Yy]* ]]; then
echo "Build requirements not met" >&2
return 1
fi
CMAKE_FULL_NAME="cmake-3.26.6-linux-x86_64"
mkdir -p $BANAN_BUILD_DIR/toolchain
mkdir -p $BANAN_TOOLCHAIN_PREFIX/bin
mkdir -p $BANAN_TOOLCHAIN_PREFIX/share
cd $BANAN_BUILD_DIR/toolchain
if ! [[ -f $CMAKE_FULL_NAME.tar.gz ]]; then
wget https://cmake.org/files/v3.26/$CMAKE_FULL_NAME.tar.gz
fi
if ! [[ -d $CMAKE_FULL_NAME ]]; then
tar xf $CMAKE_FULL_NAME.tar.gz
fi
cp -r $CMAKE_FULL_NAME/bin/* $BANAN_TOOLCHAIN_PREFIX/bin/
cp -r $CMAKE_FULL_NAME/share/* $BANAN_TOOLCHAIN_PREFIX/share/
export CMAKE_COMMAND="$BANAN_TOOLCHAIN_PREFIX/bin/cmake"
}
if ! type ninja &> /dev/null ; then
echo "ninja not found" >&2
return 1
fi
if [ -z "$CMAKE_COMMAND" ]; then
if [ -f $BANAN_TOOLCHAIN_PREFIX/bin/cmake ]; then
export CMAKE_COMMAND="$BANAN_TOOLCHAIN_PREFIX/bin/cmake"
else
export CMAKE_COMMAND=cmake
fi
fi
if ! type $CMAKE_COMMAND &> /dev/null ; then
echo "You don't seem to have cmake installed"
download_cmake
return 0
fi
CMAKE_VERSION=$($CMAKE_COMMAND --version | head -n1 | cut -d' ' -f3)
if ! version_atleast "$CMAKE_VERSION" "$CMAKE_VERSION_REQUIRED" ; then
echo "Your cmake version ($CMAKE_VERSION) is less than the required $CMAKE_VERSION_REQUIRED"
download_cmake
return 0
fi