331 lines
11 KiB
Bash
Executable File
331 lines
11 KiB
Bash
Executable File
#!/bin/bash -eu
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#
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# fdb-go-install.sh
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#
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# Installs the FoundationDB Go bindings for a client. This will download
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# the repository from the remote repo either into the go directory
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# with the appropriate semantic version. It will then build a few
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# generated files that need to be present for the go build to work.
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# At the end, it has some advice for flags to modify within your
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# go environment so that other packages may successfully use this
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# library.
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#
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DESTDIR="${DESTDIR:-}"
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FDBVER="${FDBVER:-5.2.4}"
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REMOTE="${REMOTE:-github.com}"
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FDBREPO="${FDBREPO:-apple/foundationdb}"
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status=0
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platform=$(uname)
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if [[ "${platform}" == "Darwin" ]] ; then
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FDBLIBDIR="${FDBLIBDIR:-/usr/local/lib}"
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libfdbc="libfdb_c.dylib"
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elif [[ "${platform}" == "Linux" ]] ; then
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libfdbc="libfdb_c.so"
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custom_libdir="${FDBLIBDIR:-}"
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FDBLIBDIR=""
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if [[ -z "${custom_libdir}" ]]; then
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search_libdirs=( '/usr/lib' '/usr/lib64' )
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else
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search_libdirs=( "${custom_libdir}" )
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fi
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for libdir in "${search_libdirs[@]}" ; do
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if [[ -e "${libdir}/${libfdbc}" ]]; then
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FDBLIBDIR="${libdir}"
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break
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fi
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done
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if [[ -z "${FDBLIBDIR}" ]]; then
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echo "The FoundationDB C library could not be found in any of:"
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for libdir in "${search_libdirs[@]}" ; do
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echo " ${libdir}"
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done
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echo "Your installation may be incomplete, or you need to set a custom FDBLIBDIR."
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let status="${status} + 1"
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fi
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else
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echo "Unsupported platform ${platform}".
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echo "At the moment, only macOS and Linux are supported by this script."
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let status="${status} + 1"
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fi
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filedir=$(cd `dirname "${BASH_SOURCE[0]}"` && pwd)
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destdir=""
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function printUsage() {
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echo "Usage: fdb-go-install.sh <cmd>"
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echo
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echo "cmd: One of the commands to run. The options are:"
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echo " install Download the FDB go bindings and install them"
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echo " localinstall Install a into the go path a local copy of the repo"
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echo " download Download but do not prepare the FoundationDB bindings"
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echo " help Print this help message and then quit"
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echo
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echo "Command Line Options:"
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echo " --fdbver <version> FoundationDB semantic version (default is ${FDBVER})"
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echo " -d/--dest-dir <dest> Local location for the repo (default is to place in go path)"
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echo
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echo "Environment Variable Options:"
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echo " REMOTE Remote repository to download from (currently ${REMOTE})"
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echo " FDBREPO Repository of FoundationDB library to download (currently ${FDBREPO})"
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echo " FDBLIBDIR Directory within which should be the FoundationDB c library (currently ${FDBLIBDIR})"
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}
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function parseArgs() {
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local status=0
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if [[ "${#}" -lt 0 ]] ; then
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printUsage
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let status="${status} + 1"
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else
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operation="${1}"
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shift
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if [[ "${operation}" != "install" ]] && [[ "${operation}" != "localinstall" ]] && [[ "${operation}" != "download" ]] && [[ "${operation}" != "help" ]] ; then
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echo "Unknown command: ${operation}"
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printUsage
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let status="${status} + 1"
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fi
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fi
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while [[ "${#}" -gt 0 ]] && [[ "${status}" -eq 0 ]] ; do
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local key="${1}"
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case "${key}" in
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--fdbver)
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if [[ "${#}" -lt 2 ]] ; then
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echo "No version specified with --fdbver flag"
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printUsage
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let status="${status} + 1"
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else
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FDBVER="${2}"
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fi
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shift
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;;
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-d|--dest-dir)
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if [[ "${#}" -lt 2 ]] ; then
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echo "No destination specified with ${key} flag"
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printUsage
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let status="${status} + 1"
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else
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destdir="${2}"
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fi
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shift
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;;
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*)
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echo "Unrecognized argument ${key}"
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printUsage
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let status="${status} + 1"
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esac
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shift
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done
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return "${status}"
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}
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function checkBin() {
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if [[ "${#}" -lt 1 ]] ; then
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echo "Usage: checkBin <binary>"
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return 1
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else
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if [[ -n $(which "${1}") ]] ; then
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return 0
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else
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return 1
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fi
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fi
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}
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if [[ "${status}" -gt 0 ]] ; then
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# We have already failed.
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:
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elif [[ "${#}" -lt 1 ]] ; then
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printUsage
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else
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required_bins=( 'go' 'git' 'make' 'mono' )
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missing_bins=()
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for bin in "${required_bins[@]}" ; do
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if ! checkBin "${bin}" ; then
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missing_bins+=("${bin}")
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let status="${status} + 1"
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fi
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done
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if [[ "${status}" -gt 0 ]] ; then
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echo "Missing binaries: ${missing_bins[*]}"
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elif ! parseArgs ${@} ; then
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let status="${status} + 1"
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elif [[ "${operation}" == "help" ]] ; then
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printUsage
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else
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# Add go-specific environment variables.
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eval $(go env)
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golibdir=$(dirname "${GOPATH}/src/${REMOTE}/${FDBREPO}")
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if [[ -z "${destdir}" ]] ; then
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if [[ "${operation}" == "localinstall" ]] ; then
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# Assume its the local directory.
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destdir=$(cd "${filedir}/../../.." && pwd)
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else
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destdir="${golibdir}"
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fi
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fi
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if [[ ! -d "${destdir}" ]] ; then
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cmd=( 'mkdir' '-p' "${destdir}" )
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echo "${cmd[*]}"
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if ! "${cmd[@]}" ; then
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let status="${status} + 1"
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echo "Could not create destination directory ${destdir}."
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fi
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fi
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# Step 1: Make sure repository is present.
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if [[ "${status}" -eq 0 ]] ; then
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destdir=$( cd "${destdir}" && pwd ) # Get absolute path of destination dir.
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fdbdir="${destdir}/foundationdb"
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if [[ ! -d "${destdir}" ]] ; then
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cmd=("mkdir" "-p" "${destdir}")
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echo "${cmd[*]}"
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if ! "${cmd[@]}" ; then
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echo "Could not create destination directory ${destdir}."
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let status="${status} + 1"
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fi
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fi
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fi
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if [[ "${operation}" == "localinstall" ]] ; then
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# No download occurs in this case.
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:
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else
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if [[ -d "${fdbdir}" ]] ; then
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echo "Directory ${fdbdir} already exists ; checking out appropriate tag"
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cmd1=( 'git' '-C' "${fdbdir}" 'fetch' 'origin' )
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cmd2=( 'git' '-C' "${fdbdir}" 'checkout' "${FDBVER}" )
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if ! echo "${cmd1[*]}" || ! "${cmd1[@]}" ; then
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let status="${status} + 1"
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echo "Could not pull latest changes from origin"
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elif ! echo "${cmd2[*]}" || ! "${cmd2[@]}" ; then
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let status="${status} + 1"
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echo "Could not checkout tag ${FDBVER}."
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fi
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else
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echo "Downloading foundation repository into ${destdir}:"
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cmd=( 'git' '-C' "${destdir}" 'clone' '--branch' "${FDBVER}" "https://${REMOTE}/${FDBREPO}.git" )
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echo "${cmd[*]}"
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if ! "${cmd[@]}" ; then
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let status="${status} + 1"
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echo "Could not download repository."
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fi
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fi
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fi
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# Step 2: Build generated things.
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if [[ "${operation}" == "download" ]] ; then
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# The generated files are not created under a strict download.
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:
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elif [[ "${status}" -eq 0 ]] ; then
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echo "Building generated files."
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# FoundationDB starting with 6.0 can figure that out on its own
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if [ -e '/usr/bin/mcs' ]; then
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MCS_BIN=/usr/bin/mcs
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else
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MCS_BIN=/usr/bin/dmcs
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fi
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cmd=( 'make' '-C' "${fdbdir}" 'bindings/c/foundationdb/fdb_c_options.g.h' "MCS=$MCS_BIN" )
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echo "${cmd[*]}"
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if ! "${cmd[@]}" ; then
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let status="${status} + 1"
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echo "Could not generate required c header"
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else
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infile="${fdbdir}/fdbclient/vexillographer/fdb.options"
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outfile="${fdbdir}/bindings/go/src/fdb/generated.go"
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cmd=( 'go' 'run' "${fdbdir}/bindings/go/src/_util/translate_fdb_options.go" )
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echo "${cmd[*]} < ${infile} > ${outfile}"
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if ! "${cmd[@]}" < "${infile}" > "${outfile}" ; then
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let status="${status} + 1"
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echo "Could not generate generated go file."
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fi
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fi
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fi
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# Step 3: Add to go path.
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if [[ "${operation}" == "download" ]] ; then
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# The files are not moved under a strict download.
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:
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elif [[ "${status}" -eq 0 ]] ; then
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linkpath="${GOPATH}/src/${REMOTE}/${FDBREPO}"
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if [[ "${linkpath}" == "${fdbdir}" ]] ; then
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# Downloaded directly into go path. Skip making the link.
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:
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elif [[ -e "${linkpath}" ]] ; then
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echo "Warning: link path (${linkpath}) already exists. Leaving in place."
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else
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dirpath=$(dirname "${linkpath}")
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if [[ ! -d "${dirpath}" ]] ; then
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cmd=( 'mkdir' '-p' "${dirpath}" )
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echo "${cmd[*]}"
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if ! "${cmd[@]}" ; then
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let status="${status} + 1"
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echo "Could not create directory for link."
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fi
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fi
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if [[ "${status}" -eq 0 ]] ; then
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cmd=( 'ln' '-s' "${fdbdir}" "${linkpath}" )
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echo "${cmd[*]}"
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if ! "${cmd[@]}" ; then
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let status="${status} + 1"
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echo "Could not create link within go path."
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fi
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fi
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fi
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fi
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# Step 4: Build the binaries.
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if [[ "${operation}" == "download" ]] ; then
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# Do not install if only downloading
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:
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elif [[ "${status}" -eq 0 ]] ; then
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cgo_cppflags="-I${linkpath}/bindings/c"
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cgo_cflags="-g -O2"
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cgo_ldflags="-L${FDBLIBDIR}"
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fdb_go_path="${REMOTE}/${FDBREPO}/bindings/go/src"
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if ! CGO_CPPFLAGS="${cgo_cppflags}" CGO_CFLAGS="${cgo_cflags}" CGO_LDFLAGS="${cgo_ldflags}" go install "${fdb_go_path}/fdb" "${fdb_go_path}/fdb/tuple" "${fdb_go_path}/fdb/subspace" "${fdb_go_path}/fdb/directory" ; then
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let status="${status} + 1"
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echo "Could not build FoundationDB go libraries."
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fi
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fi
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# Step 5: Explain CGO flags.
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if [[ "${status}" -eq 0 && ("${operation}" == "localinstall" || "${operation}" == "install" ) ]] ; then
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echo
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echo "The FoundationDB go bindings were successfully installed."
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echo "To build packages which use the go bindings, you will need to"
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echo "set the following environment variables:"
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echo " CGO_CPPFLAGS=\"${cgo_cppflags}\""
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echo " CGO_CFLAGS=\"${cgo_cflags}\""
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echo " CGO_LDFLAGS=\"${cgo_ldflags}\""
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fi
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fi
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fi
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exit "${status}"
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