1#!/bin/bash -eu 2 3# This script checks that the runtime version number constant in the compiler 4# source and in the runtime source is the same. 5# 6# A distro can be made of the protobuf sources with only a subset of the 7# languages, so if the compiler depended on the Objective C runtime, those 8# builds would break. At the same time, we don't want the runtime source 9# depending on the compiler sources; so two copies of the constant are needed. 10 11readonly ScriptDir=$(dirname "$(echo $0 | sed -e "s,^\([^/]\),$(pwd)/\1,")") 12readonly ProtoRootDir="${ScriptDir}/../.." 13 14die() { 15 echo "Error: $1" 16 exit 1 17} 18 19readonly GeneratorSrc="${ProtoRootDir}/src/google/protobuf/compiler/objectivec/objectivec_file.cc" 20readonly RuntimeSrc="${ProtoRootDir}/objectivec/GPBBootstrap.h" 21 22check_constant() { 23 local ConstantName="$1" 24 25 # Collect version from generator sources. 26 local GeneratorVersion=$( \ 27 cat "${GeneratorSrc}" \ 28 | sed -n -e "s:const int32 ${ConstantName} = \([0-9]*\);:\1:p" 29 ) 30 if [[ -z "${GeneratorVersion}" ]] ; then 31 die "Failed to find ${ConstantName} in the generator source (${GeneratorSrc})." 32 fi 33 34 # Collect version from runtime sources. 35 local RuntimeVersion=$( \ 36 cat "${RuntimeSrc}" \ 37 | sed -n -e "s:#define ${ConstantName} \([0-9]*\):\1:p" 38 ) 39 if [[ -z "${RuntimeVersion}" ]] ; then 40 die "Failed to find ${ConstantName} in the runtime source (${RuntimeSrc})." 41 fi 42 43 # Compare them. 44 if [[ "${GeneratorVersion}" != "${RuntimeVersion}" ]] ; then 45 die "${ConstantName} values don't match! 46 Generator: ${GeneratorVersion} from ${GeneratorSrc} 47 Runtime: ${RuntimeVersion} from ${RuntimeSrc} 48" 49 fi 50} 51 52# Do the check. 53check_constant GOOGLE_PROTOBUF_OBJC_VERSION 54 55# Success 56