bootstrap.sh

#!/usr/bin/env bash

# Bootstrap the jitutils tools:
# 1. If this script is run not from within the jitutils directory (e.g., you've downloaded
#    a copy of this file directly), then "git clone" the jitutils project first. Otherwise,
#    if we can tell we're being run from within an existing "git clone", don't do that.
# 2. Build the jitutils tools.
# 3. Download (if necessary) clang-format and clang-tidy (used by the jit-format tool).

function get_host_os {
    # Use uname to determine what the OS is.
    OSName=$(uname -s)
    case $OSName in
        Linux)
            __HostOS=Linux
            ;;

        Darwin)
            __HostOS=OSX
            ;;

        FreeBSD)
            __HostOS=FreeBSD
            ;;

        OpenBSD)
            __HostOS=OpenBSD
            ;;

        NetBSD)
            __HostOS=NetBSD
            ;;

        SunOS)
            __HostOS=SunOS
            ;;

        *)
            echo "Unsupported OS $OSName detected, configuring as if for Linux"
            __HostOS=Linux
            ;;
    esac
}

function validate_url {
    if wget -S --spider $1  2>&1 | grep -e "HTTP/1.1 200 OK";
    then
        return 0;
    else
        return 1;
    fi
}

function download_tools {

    # Do we have wget?

    if ! hash wget 2>/dev/null; then
        echo "Error: wget not found; not downloading clang-format and clang-tidy."
        if [ "$__HostOS" == "OSX" ]; then
            echo "On OSX, install wget using Homebrew (https://brew.sh/) using 'brew install wget'."
        fi
        return 1
    fi

    # Figure out which version to download. The "RID:" value from "dotnet --info" looks
    # like this:
    #      RID:         osx.10.12-x64

    info=$(dotnet --info |grep RID:)
    info=${info##*RID:* }

    clangFormatUrl=https://clrjit.blob.core.windows.net/clang-tools/${info}/clang-format

    if validate_url ${clangFormatUrl} > /dev/null; then
        echo "Downloading clang-format to bin directory"
        # download appropriate version of clang-format
        wget ${clangFormatUrl} -O bin/clang-format
        chmod 751 bin/clang-format
    else
        echo "clang-format not found here: ${clangFormatUrl}"
    fi

    clangTidyUrl=https://clrjit.blob.core.windows.net/clang-tools/${info}/clang-tidy

    if validate_url ${clangTidyUrl} > /dev/null; then
        echo "Downloading clang-tidy to bin directory"
        # download appropriate version of clang-tidy
        wget ${clangTidyUrl} -O bin/clang-tidy
        chmod 751 bin/clang-tidy
    else
        echo "clang-tidy not found here: ${clangTidyUrl}"
    fi

    if [ ! -f bin/clang-format -o ! -f bin/clang-tidy ]; then
        echo "Either Clang-tidy or clang-format was not installed. Please install and put them on the PATH to use jit-format."
        echo "Tools can be found at http://llvm.org/releases/download.html#3.8.0"
    fi
}

# Start the non-functions.

get_host_os

# Check if our required tools exist.

if ! hash dotnet 2>/dev/null; then
    echo "Can't find dotnet! Please install from http://dot.net and add to PATH."
    exit 1
fi

if ! hash git 2>/dev/null; then
    echo "Can't find git! Please add to PATH."
    exit 1
fi

# Are we already in the dotnet/jitutils repo? Or do we need to clone it? We look for build.cmd
# in the directory this script was invoked from.

# Obtain the location of the bash script.
__root="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

# Check if the bootstrap script is in the root of the jitutils repo.
# By default, we're going to clone the repo.
__clone_repo=1
if [ -e ${__root}/build.cmd ]; then
    # We found build.cmd. But make sure it's the root of the repo.
    __root="$( cd ${__root} && git rev-parse --show-toplevel )"
    pushd ${__root} >/dev/null
    git remote -v | grep "/jitutils" >/dev/null
    if [ $? == 0 ]; then
        # We've proven that we're at the root of the jitutils repo.
        __clone_repo=0
    fi
    popd >/dev/null
fi

if [ ${__clone_repo} == 1 ]; then
    git clone https://github.com/dotnet/jitutils.git
    pushd ${__root}/jitutils >/dev/null
else
    pushd . >/dev/null
fi

# Pull in needed packages.  This works globally (due to jitutils.sln).

dotnet restore

# Build and publish all the utilties and frameworks

./build.sh -p -f

if ! hash clang-format 2>/dev/null || ! hash clang-format 2>/dev/null; then
    download_tools
else
    if ! clang-format --version | grep -q 3.8 || ! clang-tidy --version | grep -q 3.8; then
        echo "jit-format requires clang-format and clang-tidy version 3.8.*. Currently installed: "
        clang-format --version
        clang-tidy --version

        echo "Installing version 3.8 of clang tools"
        download_tools
    fi
fi

popd >/dev/null

echo "Adding ${__root}/jitutils/bin to PATH"
export PATH=$PATH:${__root}/jitutils/bin

echo "Done setting up!"