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#!/usr/bin/python
from optparse import OptionParser
import re
import subprocess
import sys
"""
This script generates a release note from the output of git log
between the specified tags.
Options:
--issues Show output the commits with issues associated with them.
--issue-numbers Show outputs issue numbers of the commits with issues
associated with them
Arguments:
since -- tag name
until -- tag name
Example Input:
* <commit subject>
+
<commit message>
Bug: issue 123
Change-Id: <change id>
Signed-off-by: <name>
Expected Output:
* issue 123 <commit subject>
+
<commit message>
"""
parser = OptionParser(usage='usage: %prog [options] <since> <until>')
parser.add_option('-i', '--issues', action='store_true',
dest='issues_only', default=False,
help='only output the commits with issues association')
parser.add_option('-n', '--issue-numbers', action='store_true',
dest='issue_numbers_only', default=False,
help='only outputs issue numbers of the commits with \
issues association')
(options, args) = parser.parse_args()
if len(args) != 2:
parser.error("wrong number of arguments")
issues_only = options.issues_only
issue_numbers_only = options.issue_numbers_only
since_until = args[0] + '..' + args[1]
proc = subprocess.Popen(['git', 'log', '--reverse', '--no-merges',
since_until, "--format=* %s%n+%n%b"],
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,)
stdout_value = proc.communicate()[0]
subject = ""
message = []
is_issue = False
# regex pattern to match following cases such as Bug: 123, Issue Bug: 123,
# Bug: GERRIT-123, Bug: issue 123, Bug issue: 123, issue: 123, issue: bug 123
p = re.compile('bug: GERRIT-|bug(:? issue)?:? |issue(:? bug)?:? ',
re.IGNORECASE)
if issue_numbers_only:
for line in stdout_value.splitlines(True):
if p.match(line):
sys.stdout.write(p.sub('', line))
else:
for line in stdout_value.splitlines(True):
# Move issue number to subject line
if p.match(line):
line = p.sub('issue ', line).replace('\n',' ')
subject = subject[:2] + line + subject[2:]
is_issue = True
elif line.startswith('* '):
# Write change log for a commit
if subject != "":
if (not issues_only or is_issue):
# Write subject
sys.stdout.write(subject)
# Write message lines
if message != []:
# Clear + from last line in commit message
message[-1] = '\n'
for m in message:
sys.stdout.write(m)
# Start new commit block
message = []
subject = line
is_issue = False
# Remove commit footers
elif re.match(r'((\w+-)+\w+:)', line):
continue
# Don't add extra blank line if last one is already blank
elif line == '\n' and message and message[-1] != '+\n':
message.append('+\n')
elif line != '\n':
message.append(line)
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