blob: 4577df6b9cbeaa220b2a24741dd212d565d085cc [file] [log] [blame]
#!/usr/bin/env python
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
#
# Utility for creating well-formed pull request merges and pushing them to Apache.
# usage: ./merge_pr.py (see config env vars below)
#
# This utility assumes you already have local a Apache Griffin git folder and that you
# have added remotes corresponding to both (i) the github Apache Griffin
# mirror and (ii) the apache git repo.
import json
import os
import re
import subprocess
import sys
import urllib2
try:
import jira.client
JIRA_IMPORTED = True
except ImportError:
JIRA_IMPORTED = False
# Location of your GRIFFIN git development area
GRIFFIN_HOME = os.environ.get("GRIFFIN_HOME", os.getcwd())
# Remote name which points to the Gihub site
PR_REMOTE_NAME = os.environ.get("PR_REMOTE_NAME", "apache-github")
# Remote name which points to Apache git
PUSH_REMOTE_NAME = os.environ.get("PUSH_REMOTE_NAME", "apache-git")
# ASF JIRA username
JIRA_USERNAME = os.environ.get("JIRA_USERNAME", "")
# ASF JIRA password
JIRA_PASSWORD = os.environ.get("JIRA_PASSWORD", "")
# OAuth key used for issuing requests against the GitHub API. If this is not defined, then requests
# will be unauthenticated. You should only need to configure this if you find yourself regularly
# exceeding your IP's unauthenticated request rate limit. You can create an OAuth key at
# https://github.com/settings/tokens. This script only requires the "public_repo" scope.
GITHUB_OAUTH_KEY = os.environ.get("GITHUB_OAUTH_KEY")
GITHUB_BASE = "https://github.com/apache/griffin/pull"
GITHUB_API_BASE = "https://api.github.com/repos/apache/griffin"
JIRA_BASE = "https://issues.apache.org/jira/browse"
JIRA_API_BASE = "https://issues.apache.org/jira"
# Prefix added to temporary branches
BRANCH_PREFIX = "PR_TOOL"
PR_REPO = "https://github.com/apache/griffin.git"
PUSH_REPO = "https://gitbox.apache.org/repos/asf/griffin.git"
def get_json(url):
try:
request = urllib2.Request(url)
if GITHUB_OAUTH_KEY:
request.add_header('Authorization', 'token %s' % GITHUB_OAUTH_KEY)
return json.load(urllib2.urlopen(request))
except urllib2.HTTPError as e:
if "X-RateLimit-Remaining" in e.headers and e.headers["X-RateLimit-Remaining"] == '0':
print "Exceeded the GitHub API rate limit; see the instructions in " + \
"merge_pr.py to configure an OAuth token for making authenticated " + \
"GitHub requests."
else:
print "Unable to fetch URL, exiting: %s" % url
sys.exit(-1)
def fail(msg):
print msg
clean_up()
sys.exit(-1)
def run_cmd(cmd):
print cmd
if isinstance(cmd, list):
return subprocess.check_output(cmd)
else:
return subprocess.check_output(cmd.split(" "))
def continue_maybe(prompt):
result = raw_input("\n%s (y/n): " % prompt)
if result.lower() != "y":
fail("Okay, exiting")
def clean_up():
print "Restoring head pointer to %s" % original_head
run_cmd("git checkout %s" % original_head)
ansi_escape = re.compile(r'\x1b[^m]*m')
branches = run_cmd("git branch").replace(" ", "").split("\n")
for branch in filter(lambda x: x.startswith(BRANCH_PREFIX), branches):
branch = ansi_escape.sub('', branch)
print "Deleting local branch %s" % branch
run_cmd("git branch -D %s" % branch)
# merge the requested PR and return the merge hash
def merge_pr(pr_num, target_ref, title, body, pr_repo_desc):
pr_branch_name = "%s_MERGE_PR_%s" % (BRANCH_PREFIX, pr_num)
target_branch_name = "%s_MERGE_PR_%s_%s" % (BRANCH_PREFIX, pr_num, target_ref.upper())
run_cmd("git fetch %s pull/%s/head:%s" % (PR_REMOTE_NAME, pr_num, pr_branch_name))
run_cmd("git fetch %s %s:%s" % (PUSH_REMOTE_NAME, target_ref, target_branch_name))
run_cmd("git checkout %s" % target_branch_name)
had_conflicts = False
try:
run_cmd(['git', 'merge', pr_branch_name, '--squash'])
except Exception as e:
msg = "Error merging: %s\nWould you like to manually fix-up this merge?" % e
continue_maybe(msg)
msg = "Okay, please fix any conflicts and 'git add' conflicting files... Finished?"
continue_maybe(msg)
had_conflicts = True
commit_authors = run_cmd(['git', 'log', 'HEAD..%s' % pr_branch_name,
'--pretty=format:%an <%ae>']).split("\n")
distinct_authors = sorted(set(commit_authors),
key=lambda x: commit_authors.count(x), reverse=True)
primary_author = raw_input(
"Enter primary author in the format of \"name <email>\" [%s]: " %
distinct_authors[0])
if primary_author == "":
primary_author = distinct_authors[0]
commits = run_cmd(['git', 'log', 'HEAD..%s' % pr_branch_name,
'--pretty=format:%h [%an] %s']).split("\n\n")
merge_message_flags = []
merge_message_flags += ["-m", title]
if body is not None:
# We remove @ symbols from the body to avoid triggering e-mails
# to people every time someone creates a public fork of GRIFFIN.
merge_message_flags += ["-m", body.replace("@", "")]
authors = "\n".join(["Author: %s" % a for a in distinct_authors])
merge_message_flags += ["-m", authors]
if had_conflicts:
committer_name = run_cmd("git config --get user.name").strip()
committer_email = run_cmd("git config --get user.email").strip()
message = "This patch had conflicts when merged, resolved by\nCommitter: %s <%s>" % (
committer_name, committer_email)
merge_message_flags += ["-m", message]
# The string "Closes #%s" string is required for GitHub to correctly close the PR
merge_message_flags += ["-m", "Closes #%s from %s." % (pr_num, pr_repo_desc)]
run_cmd(['git', 'commit', '--author="%s"' % primary_author] + merge_message_flags)
continue_maybe("Merge complete (local ref %s). Push to %s?" % (
target_branch_name, PUSH_REMOTE_NAME))
try:
run_cmd('git push %s %s:%s' % (PUSH_REMOTE_NAME, target_branch_name, target_ref))
except Exception as e:
clean_up()
fail("Exception while pushing: %s" % e)
merge_hash = run_cmd("git rev-parse %s" % target_branch_name)[:8]
clean_up()
print("Pull request #%s merged!" % pr_num)
print("Merge hash: %s" % merge_hash)
return merge_hash
def cherry_pick(pr_num, merge_hash, default_branch):
pick_ref = raw_input("Enter a branch name [%s]: " % default_branch)
if pick_ref == "":
pick_ref = default_branch
pick_branch_name = "%s_PICK_PR_%s_%s" % (BRANCH_PREFIX, pr_num, pick_ref.upper())
run_cmd("git fetch %s %s:%s" % (PUSH_REMOTE_NAME, pick_ref, pick_branch_name))
run_cmd("git checkout %s" % pick_branch_name)
try:
run_cmd("git cherry-pick -sx %s" % merge_hash)
except Exception as e:
msg = "Error cherry-picking: %s\nWould you like to manually fix-up this merge?" % e
continue_maybe(msg)
msg = "Okay, please fix any conflicts and finish the cherry-pick. Finished?"
continue_maybe(msg)
continue_maybe("Pick complete (local ref %s). Push to %s?" % (
pick_branch_name, PUSH_REMOTE_NAME))
try:
run_cmd('git push %s %s:%s' % (PUSH_REMOTE_NAME, pick_branch_name, pick_ref))
except Exception as e:
clean_up()
fail("Exception while pushing: %s" % e)
pick_hash = run_cmd("git rev-parse %s" % pick_branch_name)[:8]
clean_up()
print("Pull request #%s picked into %s!" % (pr_num, pick_ref))
print("Pick hash: %s" % pick_hash)
return pick_ref
def fix_version_from_branch(branch, versions):
# Note: Assumes this is a sorted (newest->oldest) list of un-released versions
if branch == "master":
return versions[0]
else:
branch_ver = branch.replace("branch-", "")
return filter(lambda x: x.name.startswith(branch_ver), versions)[-1]
def resolve_jira_issue(merge_branches, comment, default_jira_id="5"):
asf_jira = jira.client.JIRA({'server': JIRA_API_BASE},
basic_auth=(JIRA_USERNAME, JIRA_PASSWORD))
jira_id = raw_input("Enter a Griffin JIRA number id [%s]: " % default_jira_id)
if jira_id == "":
jira_id = default_jira_id
try:
issue = asf_jira.issue("%s" % (jira_id))
except Exception as e:
fail("ASF JIRA could not find %s\n%s" % (jira_id, e))
cur_status = issue.fields.status.name
cur_summary = issue.fields.summary
cur_assignee = issue.fields.assignee
if cur_assignee is None:
cur_assignee = "NOT ASSIGNED!!!"
else:
cur_assignee = cur_assignee.displayName
if cur_status == "Resolved" or cur_status == "Closed":
fail("JIRA issue %s already has status '%s'" % (jira_id, cur_status))
print ("=== JIRA %s ===" % jira_id)
print ("summary\t\t%s\nassignee\t%s\nstatus\t\t%s\nurl\t\t%s/%s\n" % (
cur_summary, cur_assignee, cur_status, JIRA_BASE, jira_id))
versions = asf_jira.project_versions("GRIFFIN")
versions = sorted(versions, key=lambda x: x.name, reverse=True)
versions = filter(lambda x: x.raw['released'] is False, versions)
# Consider only x.y.z versions
versions = filter(lambda x: re.match('\d+\.\d+\.\d+', x.name), versions)
default_fix_versions = map(lambda x: fix_version_from_branch(x, versions).name, merge_branches)
for v in default_fix_versions:
# Handles the case where we have forked a release branch but not yet made the release.
# In this case, if the PR is committed to the master branch and the release branch, we
# only consider the release branch to be the fix version. E.g. it is not valid to have
# both 1.1.0 and 1.0.0 as fix versions.
(major, minor, patch) = v.split(".")
if patch == "0":
previous = "%s.%s.%s" % (major, int(minor) - 1, 0)
if previous in default_fix_versions:
default_fix_versions = filter(lambda x: x != v, default_fix_versions)
default_fix_versions = ",".join(default_fix_versions)
fix_versions = raw_input("Enter comma-separated fix version(s) [%s]: " % default_fix_versions)
if fix_versions == "":
fix_versions = default_fix_versions
fix_versions = fix_versions.replace(" ", "").split(",")
def get_version_json(version_str):
return filter(lambda v: v.name == version_str, versions)[0].raw
jira_fix_versions = map(lambda v: get_version_json(v), fix_versions)
resolve = filter(lambda a: a['name'] == "Resolve Issue", asf_jira.transitions(jira_id))[0]
resolution = filter(lambda r: r.raw['name'] == "Fixed", asf_jira.resolutions())[0]
asf_jira.transition_issue(
jira_id, resolve["id"], fixVersions=jira_fix_versions,
comment=comment, resolution={'id': resolution.raw['id']})
print "Successfully resolved %s with fixVersions=%s!" % (jira_id, fix_versions)
def resolve_jira_issues(title, merge_branches, comment):
jira_ids = re.findall("GRIFFIN-[0-9]{1,5}", title)
if len(jira_ids) == 0:
resolve_jira_issue(merge_branches, comment)
for jira_id in jira_ids:
resolve_jira_issue(merge_branches, comment, jira_id)
def standardize_jira_ref(text):
jira_refs = []
components = []
# If the string is compliant, no need to process any further
if (re.search(r'^\[GRIFFIN-[0-9]{3,6}\](\[[A-Z0-9_\s,]+\] )+\S+', text)):
return text
# Extract JIRA ref(s):
pattern = re.compile(r'(GRIFFIN[-\s]*[0-9]{3,6})+', re.IGNORECASE)
for ref in pattern.findall(text):
# Add brackets, replace spaces with a dash, & convert to uppercase
jira_refs.append('[' + re.sub(r'\s+', '-', ref.upper()) + ']')
text = text.replace(ref, '')
# Extract GRIFFIN component(s):
# Look for alphanumeric chars, spaces, dashes, periods, and/or commas
pattern = re.compile(r'(\[[\w\s,-\.]+\])', re.IGNORECASE)
for component in pattern.findall(text):
components.append(component.upper())
text = text.replace(component, '')
# Cleanup any remaining symbols:
pattern = re.compile(r'^\W+(.*)', re.IGNORECASE)
if (pattern.search(text) is not None):
text = pattern.search(text).groups()[0]
# Assemble full text (JIRA ref(s), module(s), remaining text)
clean_text = ''.join(jira_refs).strip() + ''.join(components).strip() + " " + text.strip()
# Replace multiple spaces with a single space, e.g. if no jira refs and/or components were included
clean_text = re.sub(r'\s+', ' ', clean_text.strip())
return clean_text
def get_current_ref():
ref = run_cmd("git rev-parse --abbrev-ref HEAD").strip()
if ref == 'HEAD':
# The current ref is a detached HEAD, so grab its SHA.
return run_cmd("git rev-parse HEAD").strip()
else:
return ref
def check_init():
try:
run_cmd("git config --get remote.%s.url" % PR_REMOTE_NAME)
except:
run_cmd("git remote add %s %s" % (PR_REMOTE_NAME, PR_REPO))
try:
run_cmd("git config --get remote.%s.url" % PUSH_REMOTE_NAME)
except:
run_cmd("git remote add %s %s" % (PUSH_REMOTE_NAME, PUSH_REPO))
def main():
global original_head
os.chdir(GRIFFIN_HOME)
original_head = get_current_ref()
check_init()
branches = get_json("%s/branches" % GITHUB_API_BASE)
branch_names = filter(lambda x: True, [x['name'] for x in branches])
# Assumes branch names can be sorted lexicographically
latest_branch = sorted(branch_names, reverse=True)[0]
pr_num = raw_input("Which pull request would you like to merge? (e.g. 34): ")
pr = get_json("%s/pulls/%s" % (GITHUB_API_BASE, pr_num))
pr_events = get_json("%s/issues/%s/events" % (GITHUB_API_BASE, pr_num))
url = pr["url"]
# Decide whether to use the modified title or not
modified_title = standardize_jira_ref(pr["title"])
if modified_title != pr["title"]:
print "I've re-written the title as follows to match the standard format:"
print "Original: %s" % pr["title"]
print "Modified: %s" % modified_title
result = raw_input("Would you like to use the modified title? (y/n): ")
if result.lower() == "y":
title = modified_title
print "Using modified title:"
else:
title = pr["title"]
print "Using original title:"
print title
else:
title = pr["title"]
body = pr["body"]
target_ref = pr["base"]["ref"]
user_login = pr["user"]["login"]
base_ref = pr["head"]["ref"]
pr_repo_desc = "%s/%s" % (user_login, base_ref)
# Merged pull requests don't appear as merged in the GitHub API;
# Instead, they're closed by asfgit.
merge_commits = \
[e for e in pr_events if e["actor"]["login"] == "asfgit" and e["event"] == "closed"]
if merge_commits:
merge_hash = merge_commits[0]["commit_id"]
message = get_json("%s/commits/%s" % (GITHUB_API_BASE, merge_hash))["commit"]["message"]
print "Pull request %s has already been merged, assuming you want to backport" % pr_num
commit_is_downloaded = run_cmd(['git', 'rev-parse', '--quiet', '--verify',
"%s^{commit}" % merge_hash]).strip() != ""
if not commit_is_downloaded:
fail("Couldn't find any merge commit for #%s, you may need to update HEAD." % pr_num)
print "Found commit %s:\n%s" % (merge_hash, message)
cherry_pick(pr_num, merge_hash, latest_branch)
sys.exit(0)
if not bool(pr["mergeable"]):
msg = "Pull request %s is not mergeable in its current form.\n" % pr_num + \
"Continue? (experts only!)"
continue_maybe(msg)
print ("\n=== Pull Request #%s ===" % pr_num)
print ("title\t%s\nsource\t%s\ntarget\t%s\nurl\t%s" % (
title, pr_repo_desc, target_ref, url))
continue_maybe("Proceed with merging pull request #%s?" % pr_num)
merged_refs = [target_ref]
merge_hash = merge_pr(pr_num, target_ref, title, body, pr_repo_desc)
pick_prompt = "Would you like to pick %s into another branch?" % merge_hash
while raw_input("\n%s (y/n): " % pick_prompt).lower() == "y":
merged_refs = merged_refs + [cherry_pick(pr_num, merge_hash, latest_branch)]
if JIRA_IMPORTED:
if JIRA_USERNAME and JIRA_PASSWORD:
continue_maybe("Would you like to update an associated JIRA?")
jira_comment = "Issue resolved by pull request %s\n[%s/%s]" % (pr_num, GITHUB_BASE, pr_num)
resolve_jira_issues(title, merged_refs, jira_comment)
else:
print "JIRA_USERNAME and JIRA_PASSWORD not set"
print "Exiting without trying to close the associated JIRA."
else:
print "Could not find jira-python library. Run 'sudo pip install jira' to install."
print "Exiting without trying to close the associated JIRA."
if __name__ == "__main__":
import doctest
(failure_count, test_count) = doctest.testmod()
if failure_count:
exit(-1)
try:
main()
except:
clean_up()
raise