1 #!/bin/bash 2 CLANG_PACKAGE=clang 3 GNSHA1_URL="https://chromium.googlesource.com/chromium/buildtools/\ 4 +/master/linux64/gn.sha1?format=TEXT" 5 6 # Check if clang is already installed on current system 7 clang_path=`which clang` 8 if [ -f "$clang_path" ]; then 9 # if clang binary is avalable, check its version 10 clang_version=$($clang_path --version | grep clang | sed "s/.*version\s*\([0-9]*\.[0-9]*\).*/\1/") 11 IFS="." read -ra clang_version_array <<< "$clang_version" 12 clang_version_major=${clang_version_array[0]} 13 clang_version_minor=${clang_version_array[1]} 14 # if the version is greater than 3.5 then do not install clang here 15 if [ $clang_version_major -ge 3 ] && [ $clang_version_minor -ge 5 ]; then 16 echo "Detected clang $clang_version" 17 CLANG_PACKAGE="" 18 fi 19 fi 20 21 if [ ! -z "$CLANG_PACKAGE" ]; then 22 # Try to find clang from a known list 23 for clang_version in 3.9 3.8 3.7 3.6 3.5 24 do 25 clang_path=`which clang-$clang_version` 26 if [ -f "$clang_path" ]; then 27 echo "Detected clang-$clang_version" 28 CLANG_PACKAGE="" 29 break 30 fi 31 done 32 fi 33 34 if [ ! -z "$CLANG_PACKAGE" ]; then 35 echo "clang not found on current system, installing" 36 if [ -f /etc/lsb-release ]; then 37 # Ubuntu 38 ubuntu_version=$(lsb_release --release --short) 39 IFS="." read -ra ubuntu_version_array <<< "$ubuntu_version" 40 ubuntu_version_major=${ubuntu_version_array[0]} 41 ubuntu_version_minor=${ubuntu_version_array[1]} 42 if [ $ubuntu_version_major -lt 15 ]; then 43 echo "Choose clang-3.8 for Ubuntu 14 and below" 44 CLANG_PACKAGE=clang-3.8 45 fi 46 fi 47 fi 48 49 sudo apt-get -y install $CLANG_PACKAGE libevent-dev libc++-dev libc++abi-dev \ 50 ninja-build 51 gn_path=`which gn` 52 if [ -z $gn_path ]; then 53 gnsha1=$(curl $GNSHA1_URL | base64 -d) 54 wget -O gn http://storage.googleapis.com/chromium-gn/$gnsha1 55 chmod a+x ./gn 56 sudo mv ./gn /usr/bin/ 57 fi 58
