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From GitBox <...@apache.org>
Subject [GitHub] maskit commented on a change in pull request #2526: [dev] provide a python merge script for merging pull requests
Date Mon, 10 Sep 2018 11:27:02 GMT
maskit commented on a change in pull request #2526: [dev] provide a python merge script for
merging pull requests
URL: https://github.com/apache/incubator-pulsar/pull/2526#discussion_r216286359
 
 

 ##########
 File path: dev/pulsar-merge-pr.py
 ##########
 @@ -0,0 +1,699 @@
+#!/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. This script
is a modified version
+# of the one created by the BookKeeper project (https://github.com/apache/bookkeeper/blob/master/dev/bk-merge-pr.py).
+#
+# Usage: ./pulsar-merge-pr.py (see config env vars below)
+#
+# This utility assumes you already have local a pulsar git folder and that you
+# have added remotes corresponding to the github apache pulsar repo.
+
+import json
+import os
+import re
+import subprocess
+import sys
+import urllib2
+
+PROJECT_NAME = "incubator-pulsar"
+
+CAPITALIZED_PROJECT_NAME = "pulsar".upper()
+GITHUB_ISSUES_NAME = "issue".upper()
+
+# Location of the local git repository
+REPO_HOME = os.environ.get("%s_HOME" % CAPITALIZED_PROJECT_NAME, os.getcwd())
+# Remote name which points to the GitHub site
+PR_REMOTE_NAME = os.environ.get("PR_REMOTE_NAME", "apache")
+# Remote name which points to Apache git
+PUSH_REMOTE_NAME = os.environ.get("PUSH_REMOTE_NAME", "apache")
+# Reference branch name
+DEV_BRANCH_NAME = os.environ.get("DEV_BRANCH_NAME", "master")
+# Github API page size
+GITHUB_PAGE_SIZE = os.environ.get("GH_PAGE_SIZE", "100")
+# 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_USER = os.environ.get("GITHUB_USER", "apache")
+GITHUB_BASE = "https://github.com/%s/%s/pull" % (GITHUB_USER, PROJECT_NAME)
+GITHUB_API_URL  = "https://api.github.com"
+GITHUB_API_BASE = "%s/repos/%s/%s" % (GITHUB_API_URL, GITHUB_USER, PROJECT_NAME)
+# Prefix added to temporary branches
+TEMP_BRANCH_PREFIX = "PR_TOOL"
+RELEASE_BRANCH_PREFIX = "branch-"
+
+DEFAULT_FIX_VERSION = os.environ.get("DEFAULT_FIX_VERSION", "0.9.1.0")
+
+def get_json(url, preview_api = False):
+    try:
+        request = urllib2.Request(url)
+        if GITHUB_OAUTH_KEY:
+            request.add_header('Authorization', 'token %s' % GITHUB_OAUTH_KEY)
+        if preview_api:
+            request.add_header('Accept', 'application/vnd.github.black-cat-preview+json')
+        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 " + \
+                  "pulsar-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 post_json(url, data):
+    try:
+        request = urllib2.Request(url, data, { 'Content-Type': 'application/json' })
+        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 " + \
+                  "pulsar-merge-pr.py to configure an OAuth token for making authenticated
" + \
+                  "GitHub requests."
+        else:
+            print "Unable to fetch URL, exiting: %s - %s" % (url, e)
+        sys.exit(-1)
+
+def put_json(url, data):
+    try:
+        request = urllib2.Request(url, data, { 'Content-Type': 'application/json' })
+        request.get_method = lambda: 'PUT'
+        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 " + \
+                  "pulsar-merge-pr.py to configure an OAuth token for making authenticated
" + \
+                  "GitHub requests."
+        else:
+            print "Unable to fetch URL, exiting: %s - %s" % (url, e)
+            print e
+        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():
+    if original_head != get_current_branch():
+        print "Restoring head pointer to %s" % original_head
+        run_cmd("git checkout %s" % original_head)
+
+    branches = run_cmd("git branch").replace(" ", "").split("\n")
+
+    for branch in filter(lambda x: x.startswith(TEMP_BRANCH_PREFIX), branches):
+        print "Deleting local branch %s" % branch
+        run_cmd("git branch -D %s" % branch)
+
+def get_current_branch():
+    return run_cmd("git rev-parse --abbrev-ref HEAD").replace("\n", "")
+
+def get_milestones():
+    return get_json("https://api.github.com/repos/%s/%s/milestones?state=open&sort=due_on&direction=asc"
% (GITHUB_USER, PROJECT_NAME))
+
+def get_all_labels():
+    result = get_json("https://api.github.com/repos/%s/%s/labels?per_page=%s" % (GITHUB_USER,
PROJECT_NAME, GITHUB_PAGE_SIZE))
+    return map(lambda x: x['name'], result)
+
+# merge the requested PR and return the merge hash
+def merge_pr(pr_num, target_ref, title, body, default_pr_reviewers, pr_repo_desc):
+    pr_branch_name = "%s_MERGE_PR_%s" % (TEMP_BRANCH_PREFIX, pr_num)
+    run_cmd("git fetch %s pull/%s/head:%s" % (PR_REMOTE_NAME, pr_num, pr_branch_name))
+
+    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]
+
+    reviewers = raw_input("Enter reviewers [%s]: " % default_pr_reviewers).strip()
+    if reviewers == '':
+        reviewers = default_pr_reviewers
+
+    commits = run_cmd(['git', 'log', 'HEAD..%s' % pr_branch_name,
+                      '--pretty=format:%h [%an] %s']).split("\n")
+    
+    if len(commits) > 1:
+        result = raw_input("List pull request commits in squashed commit message? (y/n):
")
+        if result.lower() == "y":
+          should_list_commits = True
+        else:
+          should_list_commits = False
+    else:
+        should_list_commits = False
+
+    merge_message_flags = []
+
+    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 the project.
+        merge_message_flags += [body.replace("@", "")]
+
+    authors = "\n".join(["Author: %s" % a for a in distinct_authors])
+
+    merge_message_flags += [authors, "\n"]
+
+    if (reviewers != ""):
+        merge_message_flags += ["Reviewers: %s" % reviewers, "\n"]
+
+    # The string "Closes #%s" string is required for GitHub to correctly close the PR
+    close_line = "This closes #%s from %s" % (pr_num, pr_repo_desc)
+    # Find the github issues to close
+    github_issues = re.findall("#[0-9]{3,6}", title)
+
+    if len(github_issues) != 0:
 
 Review comment:
   This block is expecting that all referred issues in a PR title will be resolved when the
PR is closed.
   
   I'm OK with this rule, however, it need to be discussed and clearly stated.
   
   

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