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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 -e
VERSION=3.7.1
PREFIX=~/.local
OS=$(uname -s)
case $OS in
Linux) SHA256=7b4b7a1d9f314f45722899c0521c261e4bfab4a6b532609e37fef391da6bade2;;
Darwin) SHA256=1851d1448964893fdc5a8c05863326119f397a3790e0c84c40b83499c7960267;;
esac
BIN=$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-$OS-x86_64.tar.gz
URL=https://cmake.org/files/v3.7/$FILE
ERROR=0
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
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