clang-3.8.sh

install-clang.sh

#!/bin/bash

export DEBIAN_FRONTEND=noninteractive

print_status() {
    echo
    echo "## $1"
    echo
}

bail() {
    echo 'Error executing command, exiting'
    exit 1
}

exec_cmd_nobail() {
    echo "+ $1"
    bash -c "$1"
}

exec_cmd() {
    exec_cmd_nobail "$1" || bail
}

create_clang_symlink () {
	if [ -f /usr/bin/clang++-3.8 ] && [ ! -L /usr/bin/clang++ ]; then
		sudo ln -s /usr/bin/clang++-3.8 /usr/bin/clang++
	fi
}

create_llvm_symlink () {
	if [ -f /usr/bin/usr/bin/llvm-symbolizer-3.8 ] && [ ! -L /usr/bin/llvm-symbolizer ]; then
		sudo ln -s /usr/bin/llvm-symbolizer-3.8 /usr/bin/llvm-symbolizer
	fi
}

print_status "Removing clang and llvm packages..."
exec_cmd 'sudo apt-get remove clang* -y && sudo apt-get autoremove -y'

print_status "Adding llvm-3.8 repo key"
if [ -x /usr/bin/curl ]; then
    exec_cmd 'curl -s http://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -'
else
    exec_cmd 'wget -O - http://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -'
fi

print_status 'Creating apt sources list file for llvm repo...'
exec_cmd "echo '' | sudo tee /etc/apt/sources.list.d/llvm.list"
exec_cmd "echo 'deb http://apt.llvm.org/trusty/ llvm-toolchain-trusty-3.8 main' | sudo tee -a /etc/apt/sources.list.d/llvm.list"
exec_cmd "echo 'deb-src http://apt.llvm.org/trusty/ llvm-toolchain-trusty-3.8 main' | sudo tee -a /etc/apt/sources.list.d/llvm.list"

print_status "Updating repo metadata..."
exec_cmd 'sudo apt-get update'

print_status "Installing clang and llvm packages..."
exec_cmd 'sudo apt-get install clang-3.8 lldb-3.8 clang-tidy-3.8 -y'

print_status 'Creating symlink for clang++'
create_clang_symlink

print_status 'Creating symlink for llvm'
create_llvm_symlink