kafka-patch-review.py
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kafka-patch-review.py
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	#!/usr/bin/env python

	import argparse
	import sys
	import os
	import time
	import datetime
	import tempfile
	from jira.client import JIRA

	def get_jira():
	options = {
	'server': 'https://issues.apache.org/jira'
	}
	# read the config file
	home=jira_home=os.getenv('HOME')
	home=home.rstrip('/')
	jira_config = dict(line.strip().split('=') for line in open(home + '/jira.ini'))
	jira = JIRA(options,basic_auth=(jira_config['user'], jira_config['password']))
	return jira

	def main():
	''' main(), shut up, pylint '''
	popt = argparse.ArgumentParser(description='Kafka patch review tool')
	popt.add_argument('-b', '--branch', action='store', dest='branch', required=True, help='Tracking branch to create diff against')
	popt.add_argument('-j', '--jira', action='store', dest='jira', required=True, help='JIRA corresponding to the reviewboard')
	popt.add_argument('-s', '--summary', action='store', dest='summary', required=False, help='Summary for the reviewboard')
	popt.add_argument('-d', '--description', action='store', dest='description', required=False, help='Description for reviewboard')
	popt.add_argument('-r', '--rb', action='store', dest='reviewboard', required=False, help='Review board that needs to be updated')
	popt.add_argument('-t', '--testing-done', action='store', dest='testing', required=False, help='Text for the Testing Done section of the reviewboard')
	popt.add_argument('-db', '--debug', action='store_true', required=False, help='Enable debug mode')
	opt = popt.parse_args()

	patch_file=tempfile.gettempdir() + "/" + opt.jira + ".patch"
	if opt.reviewboard:
	ts = time.time()
	st = datetime.datetime.fromtimestamp(ts).strftime('%Y-%m-%d_%H:%M:%S')
	patch_file=tempfile.gettempdir() + "/" + opt.jira + '_' + st + '.patch'

	# first check if rebase is needed
	git_branch_hash="git rev-parse " + opt.branch
	p_now=os.popen(git_branch_hash)
	branch_now=p_now.read()
	p_now.close()

	git_common_ancestor="git merge-base " + opt.branch + " HEAD"
	p_then=os.popen(git_common_ancestor)
	branch_then=p_then.read()
	p_then.close()

	if branch_now != branch_then:
	print 'ERROR: Your current working branch is from an older version of ' + opt.branch + '. Please rebase first by using git pull --rebase'
	sys.exit(1)

	git_configure_reviewboard="git config reviewboard.url https://reviews.apache.org"
	print "Configuring reviewboard url to https://reviews.apache.org"
	p=os.popen(git_configure_reviewboard)
	p.close()

	git_remote_update="git remote update"
	print "Updating your remote branches to pull the latest changes"
	p=os.popen(git_remote_update)
	p.close()

	rb_command="post-review --publish --tracking-branch " + opt.branch + " --target-groups=kafka --bugs-closed=" + opt.jira
	if opt.debug:
	rb_command=rb_command + " --debug"
	summary="Patch for " + opt.jira
	if opt.summary:
	summary=opt.summary
	rb_command=rb_command + " --summary \"" + summary + "\""
	if opt.description:
	rb_command=rb_command + " --description \"" + opt.description + "\""
	if opt.reviewboard:
	rb_command=rb_command + " -r " + opt.reviewboard
	if opt.testing:
	rb_command=rb_command + " --testing-done=" + opt.testing
	if opt.debug:
	print rb_command
	p=os.popen(rb_command)
	rb_url=""
	for line in p:
	print line
	if line.startswith('http'):
	rb_url = line
	elif line.startswith("There don't seem to be any diffs"):
	print 'ERROR: Your reviewboard was not created/updated since there was no diff to upload. The reasons that can cause this issue are 1) Your diff is not checked into your local branch. Please check in the diff to the local branch and retry 2) You are not specifying the local branch name as part of the --branch option. Please specify the remote branch name obtained from git branch -r'
	p.close()
	sys.exit(1)
	elif line.startswith("Your review request still exists, but the diff is not attached") and not opt.debug:
	print 'ERROR: Your reviewboard was not created/updated. Please run the script with the --debug option to troubleshoot the problem'
	p.close()
	sys.exit(1)
	p.close()
	if opt.debug:
	print 'rb url=',rb_url

	git_command="git diff " + opt.branch + " > " + patch_file
	if opt.debug:
	print git_command
	p=os.popen(git_command)
	p.close()

	print 'Creating diff against', opt.branch, 'and uploading patch to JIRA',opt.jira
	jira=get_jira()
	issue = jira.issue(opt.jira)
	attachment=open(patch_file)
	jira.add_attachment(issue,attachment)
	attachment.close()

	comment="Created reviewboard "
	if not opt.reviewboard:
	print 'Created a new reviewboard ',rb_url,
	else:
	print 'Updated reviewboard'
	comment="Updated reviewboard "

	comment = comment + rb_url + ' against branch ' + opt.branch
	jira.add_comment(opt.jira, comment)

	if __name__ == '__main__':
	sys.exit(main())

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