Easily create a protobuf plugin for closure objects

protobuf-closure.sh

#!/bin/bash
############################################################
# First, you must build the library files for the protobuf
# tool.  In order to do this, follow the steps below in the
# source directory for protobuf.
# 
# 1.    ./autogen.sh
# 2.    ./configure
# 3.    make
#
# Once this has been done, execute this script to generate
# the javascript builder.
############################################################
TARGET_DIR=~/.dotfiles/bin
#TARGET_DIR=/usr/local/bin

# Store the current working directory for later
CWD=`pwd`

# Get the source to compile the plugin
PROTOBUF_SRC=$CWD/protobuf
if [ ! -d $PROTOBUF_SRC ]; then
    git clone https://github.com/google/protobuf.git
fi

# Download the plugin if necessary
PLUGIN_SRC=$CWD/protobuf-plugin-closure/protobuf
if [ ! -d $PLUGIN_SRC ]; then
    git clone https://code.google.com/p/protobuf-plugin-closure
fi

cd $PROTOBUF_SRC

./autogen.sh
./configure
make

cd $PLUGIN_SRC

CXXFLAGS="-I . -I $PROTOBUF_SRC/src"
LDFLAGS="-lpthread -lprotoc -lprotobuf"

SRC="js/javascript_package.pb.cc \
    js/int64_encoding.pb.cc"

SRC_GEN_JS="$SRC \
      js/code_generator.cc \
      js/protoc_gen_js.cc"

SRC_CC_JS="$SRC \
      ccjs/code_generator.cc \
      ccjs/protoc_gen_ccjs.cc"

protoc $CXXFLAGS --cpp_out=. js/javascript_package.proto js/int64_encoding.proto
c++ $CXXFLAGS $SRC_GEN_JS $LDFLAGS -o protoc-gen-js
c++ $CXXFLAGS $SRC_CC_JS $LDFLAGS -o protoc-gen-ccjs

mv protoc-gen-js $TARGET_DIR/protoc-gen-js
mv protoc-gen-ccjs $TARGET_DIR/protoc-gen-ccjs