R7507/make_rc.sh
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make_rc.sh
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			#!/bin/bash
			#
			# Script to help generate a new release candidate. This assumes that
			# the master branch is checked out and the working directory is clean.
			#
			# To confirm changes before checking them in, replace the -A option
			# to "git add" below with -p.
			#

			# Update the following two variables before running this script.
			VERSION=0.9.0
			RC_NUM=1

			RC_NUMBER=RC${RC_NUM}
			NEXT_RC_NUMBER=RC$((${RC_NUM} + 1))
			RC_VERSION=${VERSION}-${RC_NUMBER}

			git checkout ${VERSION}-staging

			# Modify version string from SNAPSHOT to RC.
			test $RC_NUM = 1 && FROM=${VERSION}-SNAPSHOT \|\| FROM=${RC_VERSION}-SNAPSHOT
			TO=$RC_VERSION

			FILES="`grep -rl -- -SNAPSHOT *`"

			echo "$FILES" \| xargs sed -i "s/$FROM/$TO/"
			git add -A
			git commit -m "[release] mark ${VERSION} ${RC_NUMBER}"

			# Now create a tag that we can reference on GitHub.
			git tag $RC_VERSION

			# Modify version string from RC to the next RC snapshot. Now fixes
			# that come in during testing can be picked back here for files that
			# need updating.
			FROM=$RC_VERSION
			TO=${VERSION}-${NEXT_RC_NUMBER}-SNAPSHOT
			echo "$FILES" \| xargs sed -i "s/$FROM/$TO/"
			git add -A
			git commit -m "[release] update version for ${NEXT_RC_NUMBER}"

			# Finally push all of this up to GitHub.
			git push origin ${VERSION}-staging $RC_VERSION