ISSUE #146: Update merge script to use bk merge script

Descriptions of the changes in this PR:

- copy the `dev/bk-merge-pr.py` to distributedlog
- update the repo from `bookkeeper` to `distributedlog`

Author: Sijie Guo <sijie@apache.org>
Author: Jia Zhai <zhaijia03@gmail.com>

Reviewers: Jia Zhai <None>

This closes #149 from sijie/handle_labels, closes #146
diff --git a/scripts/dev/dl-merge-pr.py b/scripts/dev/dl-merge-pr.py
index 6b8755b..f9d6ffa 100755
--- a/scripts/dev/dl-merge-pr.py
+++ b/scripts/dev/dl-merge-pr.py
@@ -17,10 +17,8 @@
 # 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 Spark project
-# (https://github.com/apache/spark/blob/master/dev/merge_spark_pr.py).
+# 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 Spark project (https://github.com/apache/spark/blob/master/dev/merge_spark_pr.py).
 #
 # Usage: ./dl-merge-pr.py (see config env vars below)
 #
@@ -37,578 +35,751 @@
 import urllib2
 
 try:
-  import jira.client
-  JIRA_IMPORTED = True
+    import jira.client
+    JIRA_IMPORTED = True
 except ImportError:
-  JIRA_IMPORTED = False
+    JIRA_IMPORTED = False
 
-PROJECT_NAME = 'distributedlog'
+PROJECT_NAME = "distributedlog"
 
-CAPITALIZED_PROJECT_NAME = 'DL'
+CAPITALIZED_PROJECT_NAME = "distributedlog".upper()
+GITHUB_ISSUES_NAME = "issue".upper()
 
 # Location of the local git repository
-REPO_HOME = os.environ.get('{0}_HOME'.format(CAPITALIZED_PROJECT_NAME), os.getcwd())
-
+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-github')
-
+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')
-
+PUSH_REMOTE_NAME = os.environ.get("PUSH_REMOTE_NAME", "apache")
 # ASF JIRA username
-JIRA_USERNAME = os.environ.get('JIRA_USERNAME', '')
-
+JIRA_USERNAME = os.environ.get("JIRA_USERNAME", "")
 # ASF JIRA password
-JIRA_PASSWORD = os.environ.get('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")
 
-# 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/{0}/{1}/pull'.format(GITHUB_USER, PROJECT_NAME)
-GITHUB_PR_REMOTE = 'https://github.com/{0}/{1}.git'.format(GITHUB_USER, PROJECT_NAME)
-GITHUB_API_URL  = 'https://api.github.com'
-GITHUB_API_BASE = '{0}/repos/{1}/{2}'.format(GITHUB_API_URL, GITHUB_USER, PROJECT_NAME)
-JIRA_BASE = 'https://issues.apache.org/jira/browse'
-JIRA_API_BASE = 'https://issues.apache.org/jira'
-
-PUSH_PR_REMOTE = 'https://gitbox.apache.org/repos/asf/{0}.git'.format(PROJECT_NAME)
-
+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)
+JIRA_BASE = "https://issues.apache.org/jira/browse"
+JIRA_API_BASE = "https://issues.apache.org/jira"
 # Prefix added to temporary branches
-TEMP_BRANCH_PREFIX = 'PR_TOOL'
-RELEASE_BRANCH_PREFIX = ''
+TEMP_BRANCH_PREFIX = "PR_TOOL"
+RELEASE_BRANCH_PREFIX = "release-"
 
-DEV_BRANCH_NAME = 'master'
-DEFAULT_FIX_VERSION = os.environ.get("DEFAULT_FIX_VERSION", "0.5.0")
+DEV_BRANCH_NAME = "master"
+
+DEFAULT_FIX_VERSION = os.environ.get("DEFAULT_FIX_VERSION", "0.9.1.0")
 
 def get_json(url, preview_api = False):
-  """
-  Returns parsed JSON from an API call to the GitHub API.
-  """
-  try:
-    request = urllib2.Request(url)
-    if GITHUB_OAUTH_KEY:
-      request.add_header('Authorization', 'token {0}'.format(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 ',
-        'dl-merge-pr.py to configure an OAuth token for making authenticated ',
-        'GitHub requests.')
-    else:
-      print('Unable to fetch URL, exiting: {0}'.format(url))
-      sys.exit(-1)
+    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 " + \
+                  "bk-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 " + \
+                  "bk-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 fail(msg):
-  """
-  Prints a message, cleans up and exits.
-  """
-  print(msg)
-  clean_up()
-  sys.exit(-1)
+    print msg
+    clean_up()
+    sys.exit(-1)
 
 
-def run_cmd(cmd, verbose=False):
-  """
-  Runs a command.
-  """
-  if verbose is True:
-    print(cmd)
-  return subprocess.check_output(cmd)
+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):
-  """
-  Asks confirmation before continuing to run.
-  """
-  result = raw_input('\n{0} (y/n): '.format(prompt))
-  if result.lower() != 'y':
-    fail('Okay, exiting')
-
+    result = raw_input("\n%s (y/n): " % prompt)
+    if result.lower() != "y":
+        fail("Okay, exiting")
 
 def clean_up():
-  """
-  Cleans up the repository to put it back to it's original state.
-  """
-  if original_head != get_current_branch():
-    print('Restoring head pointer to {0}'.format(original_head))
-    run_cmd(['git', 'checkout', original_head])
+    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')
+    branches = run_cmd("git branch").replace(" ", "").split("\n")
 
-  for branch in filter(lambda x: x.startswith(TEMP_BRANCH_PREFIX), branches):
-    print('Deleting local branch {0}'.format(branch))
-    run_cmd(['git', 'branch', '-D', branch])
-
+    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():
-  """
-  Returns the current branch
-  """
-  return run_cmd(['git', 'rev-parse', '--abbrev-ref', 'HEAD']).rstrip()
+    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" % (GITHUB_USER, PROJECT_NAME))
+    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):
-  """
-  Merges the requested PR and return the merge hash.
-  """
-  pr_branch_name = '{0}_MERGE_PR_{1}'.format(TEMP_BRANCH_PREFIX, pr_num)
-  target_branch_name = '{0}_MERGE_PR_{1}_{2}'.format(TEMP_BRANCH_PREFIX, pr_num, target_ref.upper())
-  run_cmd(['git', 'fetch', PR_REMOTE_NAME, 'pull/{0}/head:{1}'.format(pr_num, pr_branch_name)])
-  run_cmd(['git', 'fetch', PUSH_PR_REMOTE, '{0}:{1}'.format(target_ref, target_branch_name)])
-  run_cmd(['git', 'checkout', target_branch_name])
+    pr_branch_name = "%s_MERGE_PR_%s" % (TEMP_BRANCH_PREFIX, pr_num)
+    target_branch_name = "%s_MERGE_PR_%s_%s" % (TEMP_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: {0}\nWould you like to manually fix-up this merge?'.format(e)
-    continue_maybe(msg)
-    msg = 'Okay, please fix any conflicts and \'git add\' conflicting files... Finished?'
-    continue_maybe(msg)
-    had_conflicts = True
+    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
 
-  # Offer to run unit tests before committing
-  result = raw_input('Do you want to validate unit tests after the merge? (y/n): ')
-  if result.lower() == 'y':
-    test_res = subprocess.call('mvn clean install'.split())
-    if test_res == 0:
-      print('Unit tests execution succeeded')
-    else:
-      continue_maybe('Unit tests execution FAILED. Do you want to continue with the merge anyway?')
-
-  commit_authors = run_cmd(['git', 'log', 'HEAD..{0}'.format(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>\' [{0}]: '.format(distinct_authors[0]))
-  if primary_author == '':
-    primary_author = distinct_authors[0]
-
-  reviewers = raw_input('Enter reviewers [{0}]: '.format(default_pr_reviewers)).strip()
-  if reviewers == '':
-    reviewers = default_pr_reviewers
-
-  commits = run_cmd(['git', 'log', 'HEAD..{0}'.format(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): ')
+    # Offer to run unit tests before committing
+    result = raw_input('Do you want to validate unit tests after the merge? (y/n): ')
     if result.lower() == 'y':
-      should_list_commits = True
+        test_res = subprocess.call('mvn clean install'.split())
+        if test_res == 0:
+            print('Unit tests execution succeeded')
+        else:
+            continue_maybe("Unit tests execution FAILED. Do you want to continue with the merge anyway?")
+
+    # Offer to run findbugs and rat before committing
+    result = raw_input('Do you want to validate findbugs and rat after the merge? (y/n): ')
+    if result.lower() == 'y':
+        test_res = subprocess.call('mvn clean install -DskipTests findbugs:check apache-rat:check'.split())
+        if test_res == 0:
+            print('QA tests execution succeeded')
+        else:
+            continue_maybe("QA tests execution FAILED. Do you want to continue with the merge anyway?")
+
+    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
-  else:
-    should_list_commits = False
+        should_list_commits = False
 
-  merge_message_flags = []
+    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 the project.
-    merge_message_flags += ['-m', body.replace('@', '')]
+    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 the project.
+        merge_message_flags += ["-m", body.replace("@", "")]
 
-  authors = '\n'.join(['Author: {0}'.format(a) for a in distinct_authors])
+    authors = "\n".join(["Author: %s" % a for a in distinct_authors])
 
-  merge_message_flags += ['-m', authors]
+    merge_message_flags += ["-m", authors]
 
-  if (reviewers != ''):
-    merge_message_flags += ['-m', 'Reviewers: {0}'.format(reviewers)]
+    if (reviewers != ""):
+        merge_message_flags += ["-m", "Reviewers: %s" % reviewers]
 
-  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: {0} <{1}>'.format(committer_name, committer_email)
-    merge_message_flags += ['-m', message]
+    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
-  close_line = 'Closes #{0} from {1}'.format(pr_num, pr_repo_desc)
-  if should_list_commits:
-    close_line += ' and squashes the following commits:'
+    # 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)
 
-  # Append 'Closes #%s' commit message to close the PR
-  merge_message_flags += ['-m', close_line]
+    if len(github_issues) != 0:
+        for issue_id in github_issues:
+            close_line += ", closes %s" % (issue_id)
 
-  if should_list_commits:
-    merge_message_flags += ['-m', '\n'.join(commits)]
+    if should_list_commits:
+        close_line += " and squashes the following commits:"
+    merge_message_flags += ["-m", close_line]
 
-  run_cmd(['git', 'commit', '--author="%s"' % primary_author] + merge_message_flags)
+    if should_list_commits:
+        merge_message_flags += ["-m", "\n".join(commits)]
 
-  continue_maybe('Merge complete (local ref {0}). Push to {1}?'.format(target_branch_name, PUSH_REMOTE_NAME))
+    run_cmd(['git', 'commit', '--author="%s"' % primary_author] + merge_message_flags)
 
-  try:
-    run_cmd(['git', 'push', PUSH_REMOTE_NAME, '{0}:{1}'.format(target_branch_name, target_ref)])
-  except Exception as e:
+    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]
+    merge_log = run_cmd("git show --format=fuller -q %s" % target_branch_name)
     clean_up()
-    fail('Exception while pushing: {0}'.format(e))
+    print("Pull request #%s merged!" % pr_num)
+    print("Merge hash: %s" % merge_hash)
+    return merge_hash, merge_log
 
-  merge_hash = run_cmd(['git', 'rev-parse', target_branch_name])[:8]
-  merge_log = run_cmd(['git', 'show', '--format=fuller', '-q', target_branch_name])
-  clean_up()
-  print('Pull request #{0} merged!'.format(pr_num))
-  print('Merge hash: {0}'.format(merge_hash))
-  return merge_hash, merge_log
+def ask_for_branch(default_branch):
+    pick_ref = raw_input("Enter a branch name [%s]: " % default_branch)
+    if pick_ref == "":
+        pick_ref = default_branch
+    return pick_ref
 
+def cherry_pick(pr_num, merge_hash, pick_ref):
+    pick_branch_name = "%s_PICK_PR_%s_%s" % (TEMP_BRANCH_PREFIX, pr_num, pick_ref.upper())
 
-def cherry_pick(pr_num, merge_hash, default_branch):
-  pick_ref = raw_input('Enter a branch name [{0}]: '.format(default_branch))
-  if pick_ref == '':
-    pick_ref = default_branch
+    run_cmd("git fetch %s %s:%s" % (PUSH_REMOTE_NAME, pick_ref, pick_branch_name))
+    run_cmd("git checkout %s" % pick_branch_name)
 
-  pick_branch_name = '{0}_PICK_PR_{1}_{2}'.format(TEMP_BRANCH_PREFIX, pr_num, pick_ref.upper())
+    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)
 
-  run_cmd(['git', 'fetch', PUSH_REMOTE_NAME, '{0}:{1}'.format(pick_ref, pick_branch_name)])
-  run_cmd(['git', 'checkout', pick_branch_name])
+    continue_maybe("Pick complete (local ref %s). Push to %s?" % (
+        pick_branch_name, PUSH_REMOTE_NAME))
 
-  try:
-    run_cmd(['git', 'cherry-pick', '-sx', merge_hash])
-  except Exception as e:
-    msg = 'Error cherry-picking: {0}\nWould you like to manually fix-up this merge?'.format(e)
-    continue_maybe(msg)
-    msg = 'Okay, please fix any conflicts and finish the cherry-pick. Finished?'
-    continue_maybe(msg)
+    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)
 
-  continue_maybe('Pick complete (local ref {0}). Push to {1}?'.format(pick_branch_name, PUSH_REMOTE_NAME))
-
-  try:
-    run_cmd(['git', 'push', PUSH_REMOTE_NAME, '{0}:{1}'.format(pick_branch_name, pick_ref)])
-  except Exception as e:
+    pick_hash = run_cmd("git rev-parse %s" % pick_branch_name)[:8]
     clean_up()
-    fail('Exception while pushing: {0}'.format(e))
 
-  pick_hash = run_cmd(['git', 'rev-parse', pick_branch_name])[:8]
-  clean_up()
-
-  print('Pull request #{0} picked into {1}!'.format(pr_num, pick_ref))
-  print('Pick hash: {0}'.format(pick_hash))
-  return pick_ref
+    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 == DEV_BRANCH_NAME:
-    versions = filter(lambda x: x == DEFAULT_FIX_VERSION, versions)
-    if len(versions) > 0:
-      return versions[0]
+    # Note: Assumes this is a sorted (newest->oldest) list of un-released versions
+    if branch == DEV_BRANCH_NAME:
+        versions = filter(lambda x: x == DEFAULT_FIX_VERSION, versions)
+        if len(versions) > 0:
+            return versions[0]
+        else:
+            return None
     else:
-      return None
-  else:
-    versions = filter(lambda x: x.startswith(branch), versions)
-    if len(versions) > 0:
-      return versions[-1]
-    else:
-      return None
+        versions = filter(lambda x: x.startswith(branch), versions)
+        if len(versions) > 0:
+            return versions[-1]
+        else:
+            return None
 
 
 def resolve_jira_issue(merge_branches, comment, jira_id):
-  """
-  Resolves the JIRA issue associated with the pull request.
-  """
-  asf_jira = jira.client.JIRA({'server': JIRA_API_BASE},
-                              basic_auth=(JIRA_USERNAME, JIRA_PASSWORD))
+    asf_jira = jira.client.JIRA({'server': JIRA_API_BASE},
+                                basic_auth=(JIRA_USERNAME, JIRA_PASSWORD))
 
-  result = raw_input('Resolve JIRA {0} ? (y/n): '.format(jira_id))
-  if result.lower() != 'y':
-    return
+    result = raw_input("Resolve JIRA %s ? (y/n): " % jira_id)
+    if result.lower() != "y":
+        return
 
-  try:
-    issue = asf_jira.issue(jira_id)
-  except Exception as e:
-    fail('ASF JIRA could not find {0}\n{1}'.format(jira_id, e))
+    try:
+        issue = asf_jira.issue(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
+    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 {0} already has status \'{1}\''.format(jira_id, cur_status))
+    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))
 
-  print ('=== JIRA {0} ==='.format(jira_id))
-  print ('summary\t\t{0}\nassignee\t{1}\nstatus\t\t{2}\nurl\t\t{3}/{4}\n'.format(
-    cur_summary, cur_assignee, cur_status, JIRA_BASE, jira_id))
+    versions = asf_jira.project_versions(CAPITALIZED_PROJECT_NAME)
+    versions = sorted(versions, key=lambda x: x.name, reverse=True)
+    versions = filter(lambda x: x.raw['released'] is False, versions)
 
-  versions = asf_jira.project_versions(CAPITALIZED_PROJECT_NAME)
-  versions = sorted(versions, key=lambda x: x.name, reverse=True)
-  versions = filter(lambda x: x.raw['released'] is False, versions)
+    version_names = map(lambda x: x.name, versions)
+    default_fix_versions = map(lambda x: fix_version_from_branch(x, version_names), merge_branches)
+    default_fix_versions = filter(lambda x: x != None, default_fix_versions)
+    default_fix_versions = ",".join(default_fix_versions)
 
-  version_names = map(lambda x: x.name, versions)
-  default_fix_versions = map(lambda x: fix_version_from_branch(x, version_names), merge_branches)
-  default_fix_versions = filter(lambda x: x != None, 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(",")
 
-  fix_versions = raw_input('Enter comma-separated fix version(s) [{0}]: '.format(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
 
-  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)
 
-  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']})
 
-  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 {0} with fixVersions={1}!'.format(jira_id, fix_versions)
+    print "Successfully resolved %s with fixVersions=%s!" % (jira_id, fix_versions)
 
 
 def resolve_jira_issues(title, merge_branches, comment):
-  """
-  Resolves a list of jira issues.
-  """
-  jira_ids = re.findall('%s-[0-9]+' % CAPITALIZED_PROJECT_NAME, title)
+    jira_ids = re.findall("%s-[0-9]{3,6}" % CAPITALIZED_PROJECT_NAME, title)
 
-  if len(jira_ids) == 0:
-    print 'No JIRA issue found to update'
-  for jira_id in jira_ids:
-    resolve_jira_issue(merge_branches, comment, jira_id)
+    if len(jira_ids) == 0:
+        print "No JIRA issue found to update"
+    for jira_id in jira_ids:
+        resolve_jira_issue(merge_branches, comment, jira_id)
 
 
 def standardize_jira_ref(text):
-  """
-  Standardize the jira reference commit message prefix to "PROJECT_NAME-XXX: Issue"
+    """
+    Standardize the jira reference commit message prefix to "PROJECT_NAME-XXX: Issue"
 
-  >>> standardize_jira_ref("%s-877: Script for generating patch for reviews" % CAPITALIZED_PROJECT_NAME)
-  'DL-877: Script for generating patch for reviews'
-  """
-  jira_refs = []
-  components = []
+    'DL-877: Script for generating patch for reviews'
+    'ISSUE #376: Script for generating patch for reviews'
+    """
+    jira_refs = []
+    github_issue_refs = []
+    github_issue_ids = []
+    components = []
 
-  # Extract JIRA ref(s):
-  pattern = re.compile(r'(%s[-\s]*[0-9]+)+' % CAPITALIZED_PROJECT_NAME, 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 JIRA ref(s):
+    pattern = re.compile(r'(%s[-\s]*[0-9]{3,6})+' % CAPITALIZED_PROJECT_NAME, 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 project name 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, '')
+    # Extract Github Issue ref(s)
+    pattern = re.compile(r'(%s[-\s]*([0-9]{3,6}))+' % GITHUB_ISSUES_NAME, re.IGNORECASE)
+    for ref in pattern.findall(text):
+        # Add brackets, replace spaces or a dash with ' #', & convert to uppercase
+        github_issue_refs.append(re.sub(r'[-\s]+', ' #', ref[0].upper()))
+        text = text.replace(ref[0], '')
+        github_issue_ids.append(ref[1].upper())
 
-  # Cleanup any remaining symbols:
-  pattern = re.compile(r'^\W+(.*)', re.IGNORECASE)
-  if (pattern.search(text) is not None):
-    text = pattern.search(text).groups()[0]
+    # Extract project name 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, '')
 
-  # Assemble full text (JIRA ref(s), module(s), remaining text)
-  jira_prefix = ' '.join(jira_refs).strip()
-  if jira_prefix:
-    jira_prefix = jira_prefix + ": "
+    # Cleanup any remaining symbols:
+    pattern = re.compile(r'^\W+(.*)', re.IGNORECASE)
+    if (pattern.search(text) is not None):
+        text = pattern.search(text).groups()[0]
 
-  clean_text = jira_prefix + ' '.join(components).strip() + " " + text.strip()
+    # Assemble full text (JIRA ref(s), module(s), remaining text)
+    prefix = ''
+    jira_prefix = ' '.join(jira_refs).strip()
+    if jira_prefix:
+        prefix = jira_prefix + ": "
+    github_prefix = ' '.join(github_issue_refs).strip()
+    if github_prefix:
+        prefix = github_prefix + ": "
+    clean_text = prefix + ' '.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())
+    # 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
-
+    return clean_text, github_issue_ids
 
 def get_reviewers(pr_num):
-  """
-  Gets a candidate list of reviewers that have commented on the PR with '+1' or 'LGTM'
-  """
-  reviewers_ids = set()
+    """
+    Get a candidate list of reviewers that have commented on the PR with '+1' or 'LGTM'
+    """
+    approval_msgs = ['+1', 'lgtm']
 
-  approval_msgs = ['+1', 'lgtm']
-  pr_comments = get_json('{0}/issues/{1}/comments'.format(GITHUB_API_BASE, pr_num))
-  for comment in pr_comments:
-    for approval_msg in approval_msgs:
-      if approval_msg in comment['body'].lower():
-        reviewers_ids.add(comment['user']['login'])
+    pr_comments = get_json("%s/issues/%s/comments" % (GITHUB_API_BASE, pr_num))
 
-  approval_review_states = ['approved']
-  pr_reviews = get_json('{0}/pulls/{1}/reviews'.format(GITHUB_API_BASE, pr_num), True)
-  for review in pr_reviews:
-    for approval_state in approval_review_states:
-      if approval_state in review['state'].lower():
-        reviewers_ids.add(review['user']['login'])
+    reviewers_ids = set()
+    for comment in pr_comments:
+        for approval_msg in approval_msgs:
+            if approval_msg in comment['body'].lower():
+                reviewers_ids.add(comment['user']['login'])
 
-  if len(reviewers_ids) == 0:
-    fail("No approvals found in this pull request")
+    approval_review_states = ['approved']
+    pr_reviews = get_json('{0}/pulls/{1}/reviews'.format(GITHUB_API_BASE, pr_num), True)
+    for review in pr_reviews:
+        for approval_state in approval_review_states:
+            if approval_state in review['state'].lower():
+                reviewers_ids.add(review['user']['login'])
 
-  dir_path = os.path.dirname(os.path.realpath(__file__))
-  with open('{0}/reviewers'.format(dir_path)) as reviewers_data:
-    reviewers = json.load(reviewers_data)
+    if len(reviewers_ids) == 0:
+        fail("No approvals found in this pull request")
 
-  reviewers_emails = []
-  for reviewer_id in reviewers_ids:
-    username = None
-    useremail = None
-    if reviewer_id in reviewers:
-      reviewer = reviewers[reviewer_id]
-      username = reviewer['name']
-      useremail = reviewer['email']
-      reviewers_emails += ['{0} <{1}>'.format(username, useremail)]
-      continue
-    user = get_json('{0}/users/{1}'.format(GITHUB_API_URL, reviewer_id))
-    if user['email'] is not None:
-        useremail = user['email'].strip()
-    else:
+    reviewers_emails = []
+    for reviewer_id in reviewers_ids:
+        username = None
         useremail = None
-    if user['name'] is not None:
-        username = user['name'].strip()
-    else:
-        username = useremail
-    if username is None:
-        continue
-    reviewers_emails += ['{0} <{1}>'.format(username, useremail)]
-  return ', '.join(reviewers_emails)
+        user = get_json("%s/users/%s" % (GITHUB_API_URL, reviewer_id))
+        if user['email']:
+            useremail = user['email'].strip()
+        if user['name']:
+            username = user['name'].strip()
+        if username is None:
+            continue
+        reviewers_emails.append('{0} <{1}>'.format(username.encode('utf8'), useremail))
+    return ', '.join(reviewers_emails)
 
+def ask_release_for_github_issues(branch, labels):
+    print "=== Add release to github issues ==="
+    while True:
+        fix_releases = ask_for_labels("release/%s" % branch, labels, [])
+        if len(fix_releases) != 1:
+            print "Please choose only one release to add for branch '%s'." % branch
+            continue
 
-def check_remote_repos():
-  """
-  Checks that we have the remote repository configured.
-  """
-  remotes = run_cmd(['git', 'remote', 'show']).rstrip().split('\n')
-  if PR_REMOTE_NAME not in remotes:
-    _add_remote_repos(PR_REMOTE_NAME, GITHUB_PR_REMOTE)
-  if PUSH_REMOTE_NAME not in remotes:
-    _add_remote_repos(PUSH_REMOTE_NAME, PUSH_PR_REMOTE)
+        print "=== Apply following releases to github issues ==" 
+        print "Fix Releases: %s" % ', '.join(fix_releases)
+        print ""
 
+        if raw_input("Would you like to add these releases to github issues? (y/n): ") == "y":
+            break
+    return fix_releases
 
-def _add_remote_repos(remote_name, remote_url):
-  """
-  Asks if we want to configure the remote repository.
-  """
-  result = raw_input('You don\'t have {0} set as a remote, do you want me to set this up for you? [y/n]: '.format(remote_name))
-  if result.lower() != 'y':
-    print('You need to set {0} before continuing'.format(PR_REMOTE_NAME))
-    sys.exit(1)
-  else:
-    run_cmd(['git', 'remote', 'add', remote_name, remote_url])
+def ask_updates_for_github_issues(milestones, labels, issue_labels):
+    while True:
+        fix_milestone, fix_milestone_number, fix_areas, fix_types = \
+            get_updates_for_github_issues(milestones, labels, issue_labels)
 
+        print "=== Apply following milestone, area, type to github issues ==" 
+        print "Fix Types: %s" % ', '.join(fix_types)
+        print "Fix Areas: %s" % ', '.join(fix_areas)
+        print "Fix Milestone: %s" % fix_milestone
+        print ""
+
+        if raw_input("Would you like to update github issues with these labels? (y/n): ") == "y":
+            break
+
+    return fix_milestone, fix_milestone_number, fix_areas, fix_types
+
+def get_updates_for_github_issues(milestones, labels, issue_labels):
+    # get milestone
+    default_milestone_name = milestones[0]['title']
+    milestone_list = map(lambda x: x['title'], milestones)
+    milestone_map = dict((milestone['title'], milestone['number']) for milestone in milestones)
+    fix_milestone = ""
+    while True:
+        fix_milestone = raw_input("Choose fix milestone : options are [%s] - default: [%s]: " % (', '.join(milestone_list).strip(), default_milestone_name))
+        fix_milestone = fix_milestone.strip()
+        if fix_milestone == "":
+            fix_milestone = default_milestone_name
+            break
+        elif fix_milestone in milestone_map:
+            break
+        else:
+            print "Invalid milestone: %s." % fix_milestone
+
+    # get area
+    fix_areas = ask_for_labels("area/", labels, issue_labels)
+    
+    # get types
+    fix_types = ask_for_labels("type/", labels, issue_labels) 
+
+    return fix_milestone, milestone_map[fix_milestone], fix_areas, fix_types
+
+def ask_for_labels(prefix, labels, issue_labels):
+    issue_filtered_labels = map(lambda l: l.split('/')[1], filter(lambda x: x.startswith(prefix), issue_labels))
+    filtered_labels = map(lambda l: l.split('/')[1], filter(lambda x: x.startswith(prefix), labels))
+    while True:
+        fix_labels = raw_input("Choose label '%s' - options are: [%s] - default: [%s] (comma separated): "
+            % (prefix, ', '.join(filtered_labels).strip(), ', '.join(issue_filtered_labels).strip()))
+        if fix_labels == "":
+            if not issue_filtered_labels:
+                print "Please specify a '%s' label to close the issue!" % prefix
+                continue
+            else:
+                fix_labels = issue_filtered_labels
+                break
+        fix_labels = fix_labels.replace(" ", "").split(",")
+        if not fix_labels:
+            print "Please specify a '%s' label to close the issue!" % prefix
+            continue
+        invalid_label = False
+        for label in fix_labels:
+            if label not in filtered_labels:
+                print "Invalid '%s' label: %s." % (prefix, label)
+                invalid_label = True
+                break
+        if invalid_label:
+            continue
+        else:
+            break
+    return fix_labels
+
+def get_github_issue_url(github_issue_id):
+    return "https://api.github.com/repos/%s/%s/issues/%s" % (GITHUB_USER, PROJECT_NAME, github_issue_id) 
+
+def get_assignees_url(github_issue_id):
+    return "https://api.github.com/repos/%s/%s/issues/%s/assignees" % (GITHUB_USER, PROJECT_NAME, github_issue_id) 
+
+def get_github_issue_labels(github_issue_id):
+    url = "https://api.github.com/repos/%s/%s/issues/%s/labels" % (GITHUB_USER, PROJECT_NAME, github_issue_id) 
+    result = get_json(url)
+    return map(lambda x: x["name"], result)
+
+def add_release_to_github_issues(github_issue_ids, labels, fix_release):
+    for github_issue_id in github_issue_ids:
+        labels = add_release_to_github_issue(github_issue_id, labels, fix_release)
+    return labels
+
+def add_release_to_github_issue(github_issue_id, labels, fix_release):
+    url = get_github_issue_url(github_issue_id)
+    labels = ["release/%s" % fix_release] + labels
+    data = json.dumps({
+        'labels': labels
+    })
+    post_json(url, data)
+    return labels
+
+def update_github_issue(github_issue_id, fix_milestone_number, fix_milestone, fix_areas, fix_types, other_labels):
+    url = get_github_issue_url(github_issue_id)
+    labels = other_labels + map(lambda x: "area/%s" % x, fix_areas)
+    labels = labels + map(lambda x: "type/%s" % x, fix_types)
+    labels.append("release/%s" % fix_milestone)
+    data = json.dumps({
+        'milestone': int(fix_milestone_number),
+        'labels': labels,
+    })
+    post_json(url, data)
+    return labels
+
+def update_github_issues(github_issue_ids, fix_milestone_number, fix_milestone, fix_areas, fix_types, other_labels):
+    for github_issue_id in github_issue_ids:
+        labels = update_github_issue(github_issue_id, fix_milestone_number, fix_milestone, fix_areas, fix_types, other_labels)
+    return labels
+
+def add_assignees_to_github_issues(github_issue_ids, assignees):
+    for github_issue_id in github_issue_ids:
+        add_assignees_to_github_issue(github_issue_id, assignees)
+
+def add_assignees_to_github_issue(github_issue_id, assignees):
+    url = get_assignees_url(github_issue_id)
+    data = json.dumps({
+        "assignees": assignees
+    })
+    post_json(url, data)
 
 def main():
-  global original_head
+    global original_head
 
-  # we need the remote repository to be set
-  check_remote_repos()
+    if not GITHUB_OAUTH_KEY:
+        print "OAuth key is needed for merging distributedlog pull requests."
+        print "If environment variable 'GITHUB_OAUTH_KEY' is not defined,"
+        print "then requests will be unauthenticated."
+        print "You can create an OAuth key at https://github.com/settings/tokens"
+        print "and set it to the environment variable 'GITHUB_OAUTH_KEY'."
+        print "(This token only needs the 'public_repo' scope permissions)"
+        exit(-1)
 
-  original_head = get_current_branch()
+    # 0. get the current state so we can go back
+    original_head = get_current_branch()
 
-  branches = get_json('{0}/branches'.format(GITHUB_API_BASE))
+    # 1. retrieve milestones, labels, branches
+    milestones = get_milestones()
+    labels = get_all_labels()
+    branches = get_json("%s/branches" % GITHUB_API_BASE)
+    branch_names = filter(lambda x: x.startswith(RELEASE_BRANCH_PREFIX), [x['name'] for x in branches])
+    # Assumes branch names can be sorted lexicographically
+    latest_branch = sorted(branch_names, reverse=True)[0]
 
-  branch_names = filter(lambda x: x.startswith(RELEASE_BRANCH_PREFIX), [x['name'] for x in branches])
+    # 2. retrieve the details for a given pull request
+    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))
+    pr_reviewers = get_reviewers(pr_num)
+    url = pr["url"]
 
-  if len(branch_names) == 0:
-    print('No remote branch.')
-    sys.exit(0)
+    # 3. repare the title for commit message
+    pr_title = pr["title"]
+    commit_title = raw_input("Commit title [%s]: " % pr_title.encode("utf-8")).decode("utf-8")
+    if commit_title == "":
+        commit_title = pr_title
 
-  # Assumes branch names can be sorted lexicographically
-  latest_branch = sorted(branch_names, reverse=True)[0]
+    # Decide whether to use the modified title or not
+    modified_title, github_issue_ids = standardize_jira_ref(commit_title)
+    if modified_title != commit_title:
+        print "I've re-written the title as follows to match the standard format:"
+        print "Original: %s" % commit_title
+        print "Modified: %s" % modified_title
+        result = raw_input("Would you like to use the modified title? (y/n): ")
+        if result.lower() == "y":
+            commit_title = modified_title
+            print "Using modified title:"
+        else:
+            print "Using original title:"
+        print commit_title
 
-  pr_num = raw_input('Which pull request would you like to merge? (e.g. 34): ')
-  pr = get_json('{0}/pulls/{1}'.format(GITHUB_API_BASE, pr_num))
-  pr_events = get_json('{0}/issues/{1}/events'.format(GITHUB_API_BASE, pr_num))
-  pr_reviewers = get_reviewers(pr_num)
+    body = pr["body"]
+    modified_body = ""
+    for line in body.split('\n'):
+        if line.startswith('>'):
+            continue
+        modified_body = modified_body + line + "\n"
+    if modified_body != body:
+        print "I've re-written the body as follows to match the standard formats:"
+        print "Original: "
+        print body
+        print "Modified: "
+        print modified_body
+        result = raw_input("Would you like to use the modified body? (y/n): ")
+        if result.lower() == "y":
+            body = modified_body
+            print "Using modified body."
+        else:
+            print "Using original body."
 
-  url = pr['url']
+    target_ref = pr["base"]["ref"]
+    user_login = pr["user"]["login"]
+    base_ref = pr["head"]["ref"]
+    pr_repo_desc = "%s/%s" % (user_login, base_ref)
 
-  pr_title = pr['title']
-  commit_title = raw_input('Commit title [{0}]: '.format(pr_title.encode('utf-8')).decode('utf-8'))
-  if commit_title == '':
-    commit_title = pr_title
+    # append pr num to the github issues - we need to attach label and milestone to them
+    github_issue_ids.append(pr_num)
 
-  # Decide whether to use the modified title or not
-  modified_title = standardize_jira_ref(commit_title)
-  if modified_title != commit_title:
-    print 'I\'ve re-written the title as follows to match the standard format:'
-    print 'Original: {0}'.format(commit_title)
-    print 'Modified: {0}'.format(modified_title)
-    result = raw_input('Would you like to use the modified title? (y/n): ')
-    if result.lower() == 'y':
-      commit_title = modified_title
-      print 'Using modified title:'
+    #
+    # 4. attach milestone, area, type and release to github issues
+    #
+
+    # get issue labels
+    issue_labels = get_github_issue_labels(pr_num)
+    # ask for fix milestone, area and type
+    fix_milestone, fix_milestone_number, fix_areas, fix_types = \
+        ask_updates_for_github_issues(milestones, labels, issue_labels)
+    # update issues with fix milestone, are and type
+    other_labels = filter(lambda x: not x.startswith("area"), issue_labels)
+    all_issue_labels = update_github_issues( \
+        github_issue_ids, \
+        fix_milestone_number, \
+        fix_milestone, \
+        fix_areas, \
+        fix_types, \
+        other_labels)
+    # add the pr author to the assignees
+    add_assignees_to_github_issues(github_issue_ids, [ user_login ])
+
+    #
+    # 5. Process the merge
+    #
+
+    # 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, ask_for_branch(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 ("PR title\t%s\nCommit title\t%s\nSource\t\t%s\nTarget\t\t%s\nURL\t\t%s" % (
+        pr_title, commit_title, pr_repo_desc, target_ref, url))
+    continue_maybe("Proceed with merging pull request #%s?" % pr_num)
+
+    merged_refs = [target_ref]
+    # proceed with the merge
+    merge_hash, merge_commit_log = merge_pr(pr_num, target_ref, commit_title, body, pr_reviewers, 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":
+        pick_ref = ask_for_branch(latest_branch) 
+        branch_version = pick_ref.split('-')[1]
+        # add releases
+        fix_releases = ask_release_for_github_issues(branch_version, labels)
+        if len(fix_releases) > 0:
+            all_issue_labels = add_release_to_github_issues(github_issue_ids, all_issue_labels, fix_releases[0])
+        merged_refs = merged_refs + [cherry_pick(pr_num, merge_hash, pick_ref)]
+
+    if JIRA_IMPORTED:
+        if JIRA_USERNAME and JIRA_PASSWORD:
+            jira_comment = '''Issue resolved by merging pull request %s
+            [%s/%s]
+
+            {noformat}
+            %s
+            {noformat}
+            ''' % (pr_num, GITHUB_BASE, pr_num, merge_commit_log)
+            resolve_jira_issues(commit_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 'Using original title:'
-      print commit_title
-
-  body = pr['body']
-  target_ref = pr['base']['ref']
-  user_login = pr['user']['login']
-  base_ref = pr['head']['ref']
-  pr_repo_desc = '{0}/{1}'.format(user_login, base_ref)
-
-  # Merged pull requests don't appear as merged in the GitHub API;
-  # Instead, they're closed by asfgit.
-  merge_commits = []
-  for e in pr_events:
-    if e['event'] == 'closed':
-      if e['actor'] is not None and e['actor']['login'] == 'asfgit':
-        merge_commits.append(e)
-
-  if merge_commits:
-    merge_hash = merge_commits[0]['commit_id']
-    message = get_json('{0}/commits/{1}'.format(GITHUB_API_BASE, merge_hash))['commit']['message']
-
-    print 'Pull request {0} has already been merged, assuming you want to backport'.format(pr_num)
-    commit_is_downloaded = run_cmd(
-      ['git', 'rev-parse', '--quiet', '--verify', '%s^{commit}' % merge_hash]
-    ).strip() != ''
-    if not commit_is_downloaded:
-      fail('Could not find any merge commit for #{0}, you may need to update HEAD.'.format(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 {0} is not mergeable in its current form.\n'.format(pr_num) + \
-          'Continue? (experts only!)'
-    continue_maybe(msg)
-
-  print ('\n=== Pull Request #{0} ==='.format(pr_num))
-  print ('PR title\t{0}\nCommit title\t{1}\nSource\t\t{2}\nTarget\t\t{3}\nURL\t\t{4}'.format(
-    pr_title, commit_title, pr_repo_desc, target_ref, url
-  ))
-  continue_maybe('Proceed with merging pull request #{0}?'.format(pr_num))
-
-  merged_refs = [target_ref]
-
-  merge_hash, merge_commit_log = merge_pr(pr_num, target_ref, commit_title, body, pr_reviewers, 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:
-      jira_comment = '''Issue resolved by merging pull request %s
-      [%s/%s]
-
-      {noformat}
-      %s
-      {noformat}
-      ''' % (pr_num, GITHUB_BASE, pr_num, merge_commit_log)
-      resolve_jira_issues(commit_title, merged_refs, jira_comment)
-    else:
-      print 'JIRA_USERNAME and JIRA_PASSWORD are 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.'
-
+        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)
+    import doctest
+    (failure_count, test_count) = doctest.testmod()
+    if (failure_count):
+        exit(-1)
 
-  main()
+    main()