This is an example of the Makefile that I am using. I have git bits, auto dl of logstash if required version. AND this can build packages too. But you need a spec file

logstash.spec

Name: my_logstash
Version: 1.1.9
Release: monolithic
License: 2013 by me, All Rights Reserved.
Packager: email@example.com
Vendor:    MyCompany
BuildRoot: /tmp/logstash_package
Summary: Bablefish for logs
Group: Applications
Provides: logstash
Requires: jdk
%description 
http://logstash.net

%files
%attr(644,root,root) /usr/local/operations/logstash/Makefile
%attr(644,root,root) /usr/local/operations/logstash/configs/indexer.conf
%attr(644,root,root) /usr/local/operations/logstash/configs/logstash.dispatcher.conf
%attr(644,root,root) /usr/local/operations/logstash/configs/shipper.conf
%attr(644,root,root) /usr/local/operations/logstash/grok_patterns/my_patterns
%attr(644,root,root) /usr/local/operations/logstash/JAR/logstash-1.1.9-monolithic.jar

Makefile.sh

##########################################
#   DEFAULTS FOR TESTING
##########################################
#
#  First we set our defaults for our config tests
#   We have been testing with logstash monolithic 1.1.9
#   When testing the default is "-v" but you can try "make indexer LSFLAGS=--v"  etc...
#   We are using monolithic, unless we can work with the flatjar then use "make indexer LSTYPE=flatjar "
#
LSVERS=1.1.9
LSTYPE=monolithic
# monolithic flatjar
JAR=JAR/logstash-${LSVERS}-${LSTYPE}.jar 
LSFLAGS=-v
CONFIG_ROOT=/tmp/logstash_package

##########################################
#   GIT RELATED STUFF
##########################################
#
#  A hand full of git bits for ease of use or noobs
#
GIT_SERVER=git
GIT_ROOT=/home/repo/GIT_ROOT
PACKAGE=logstash

status: clean
  git status
	
pull:
	git pull operations master

remote:
	git remote add operations ${USER}@${GIT_SERVER}:${GIT_ROOT}/${PACKAGE}.git

push:
	git push operations master

mkremote:
	ssh "${USER}@${GIT_SERVER}" " mkdir -p ${GIT_ROOT}/${PACKAGE}.git ; cd ${GIT_ROOT}/${PACKAGE}.git ; git --bare init "

clean:
	find ./ -name .DS_Store -delete



##########################################
#  LOGSTASH BITS
##########################################
#
#  Here we set up the testing for configs and test cases
#
indexer:         ${JAR}
	java -jar ${JAR} agent ${LSFLAGS} -f etc/indexer.conf &

lumber:         ${JAR}
	> /tmp/test_logs.log 
	java -jar ${JAR}  agent ${LSFLAGS} -f etc/lumberjack.conf &

web:
	cd /opt/Kibana && ruby  kibana.rb  &

# if the jar you are looking for is not already there, flash!
${JAR}:  
	wget https://logstash.objects.dreamhost.com/release/logstash-${LSVERS}-${LSTYPE}.jar -O ${JAR} 


##########################################
#  TEST CASES
##########################################
#
#
#  Fill up logs with test case
#
tc:
	gunzip -dc  TEST_CASES/test_logs.log.* >> /tmp/test_logs.log 

#	
# yeah I am that lazy!
ps:
	ps -ef|egrep "java|ruby"
#
#
# we assume these tests are taking place on a stateless system where there, noone else is working :)
killall:
	killall java
	echo "" > /tmp/test_logs.log 

#
#  If you think the config is good, then make a package
#
package:   clean
	#  create base dirs for makeing package in chroot
	mkdir -p ${CONFIG_ROOT}/tmp  ${CONFIG_ROOT}/RPMS/x86_64 ${CONFIG_ROOT}/BUILD
	#
	#  create required dirs for package
	mkdir -p ${CONFIG_ROOT}/usr/local/operations/logparser/
	#  Copy files to chroot ( best praactice, specifiy each file in spec file )
	rsync -rva  Makefile ./JAR ./configs  ./grok_patterns   ${CONFIG_ROOT}/usr/local/operations/logstash/
	#  Get git commit sha and update spec file with new version
	git-commit2versions logstash.spec
	#  make package
	rpmbuild -bb  --nodeps --buildroot ${CONFIG_ROOT} --target x86_64 logstash.spec
	#  Dont forget to update the repo
	#   NB  ln -s  /package_root/web ~/rpmbuild
	#     -This way your package bot places file directly in you page root
	make -C /package_root/web/RPMS/x86_64/