solidity/scripts/install_cmake.sh

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#!/usr/bin/env sh
# This script downloads the CMake binary and installs it in ~/.local directory
# (the cmake executable will be in ~/.local/bin).
# This is mostly suitable for CIs, not end users.
set -eu
VERSION_MAJOR=3
VERSION_MINOR=15
VERSION_MICRO=2
VERSION=$VERSION_MAJOR.$VERSION_MINOR.$VERSION_MICRO
PREFIX="/usr/local"
OS=$(uname -s)
case $OS in
Linux) SHA256=f8cbec2abc433938bd9378b129d1d288bb33b8b5a277afe19644683af6e32a59;;
Darwin) SHA256=7ec056d641b8cbea98b220efdcc99da1991758a370063dcac3a0cd388d6b30b6;;
esac
BIN=$PREFIX/bin
PATH=$PREFIX/bin:$PATH
if test -f $BIN/cmake && ($BIN/cmake --version | grep -q "$VERSION"); then
echo "CMake $VERSION already installed in $BIN"
else
FILE=cmake-$VERSION-$OS-x86_64.tar.gz
URL=https://cmake.org/files/v$VERSION_MAJOR.$VERSION_MINOR/$FILE
TMPFILE=$(mktemp --tmpdir "cmake-$VERSION-$OS-x86_64.XXXXXXXX.tar.gz")
echo "Downloading CMake ($URL)..."
wget "$URL" -O "$TMPFILE" -nv
if ! (shasum -a256 "$TMPFILE" | grep -q "$SHA256"); then
echo "Checksum mismatch ($TMPFILE)"
exit 1
fi
mkdir -p "$PREFIX"
tar xzf "$TMPFILE" -C "$PREFIX" --strip 1
rm "$TMPFILE"
fi