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|
#!/bin/bash
# This script checks that the runtime version number constant in the compiler
# source and in the runtime source is the same.
#
# A distro can be made of the protobuf sources with only a subset of the
# languages, so if the compiler depended on the Objective C runtime, those
# builds would break. At the same time, we don't want the runtime source
# depending on the compiler sources; so two copies of the constant are needed.
set -eu
readonly ScriptDir=$(dirname "$(echo $0 | sed -e "s,^\([^/]\),$(pwd)/\1,")")
readonly ProtoRootDir="${ScriptDir}/../.."
die() {
echo "Error: $1"
exit 1
}
readonly ConstantName=GOOGLE_PROTOBUF_OBJC_GEN_VERSION
# Collect version from plugin sources.
readonly PluginSrc="${ProtoRootDir}/src/google/protobuf/compiler/objectivec/objectivec_file.cc"
readonly PluginVersion=$( \
cat "${PluginSrc}" \
| sed -n -e "s:const int32 ${ConstantName} = \([0-9]*\);:\1:p"
)
if [[ -z "${PluginVersion}" ]] ; then
die "Failed to fine ${ConstantName} in the plugin source (${PluginSrc})."
fi
# Collect version from runtime sources.
readonly RuntimeSrc="${ProtoRootDir}/objectivec/GPBBootstrap.h"
readonly RuntimeVersion=$( \
cat "${RuntimeSrc}" \
| sed -n -e "s:#define ${ConstantName} \([0-9]*\):\1:p"
)
if [[ -z "${RuntimeVersion}" ]] ; then
die "Failed to fine ${ConstantName} in the runtime source (${RuntimeSrc})."
fi
# Compare them.
if [[ "${PluginVersion}" != "${RuntimeVersion}" ]] ; then
die "Versions don't match!
Plugin: ${PluginVersion} from ${PluginSrc}
Runtime: ${RuntimeVersion} from ${RuntimeSrc}
"
fi
# Success
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