127 lines
4.4 KiB
Python
127 lines
4.4 KiB
Python
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#!/usr/bin/env python
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# This file is part of the coreboot project.
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#
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# Copyright (C) 2016 Google, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; version 2 of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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import sys
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import re
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import subprocess
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# Regular expression patterns
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pat_change_id = re.compile('^Change-Id: (.*)$')
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pat_orig_lines = re.compile('^(Signed-off-by|Reviewed-on|Reviewed-by)')
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pat_uninteresting = re.compile('^Tested-by')
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pat_quotes = re.compile('"')
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pat_leading_space = re.compile('^ ')
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pat_bug_line = re.compile('^bug\s*=', re.IGNORECASE)
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pat_branch_line = re.compile('branch\s*=', re.IGNORECASE)
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pat_test_line = re.compile('test\s*=', re.IGNORECASE)
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def main():
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branch = ""
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new_commit_message = ""
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change_id = ""
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commit_id = ""
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bug_line = "BUG=None\n"
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branch_line = "BRANCH=None\n"
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test_line = "TEST=Build tested at coreboot.org\n"
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# Check command line arguments
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if len(sys.argv) > 1:
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if sys.argv[1] == "-h" or sys.argv[1] == "--help":
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print "Update the commit message to submit to the Chrome OS tree."
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print "Usage: " + sys.argv[1] + " [Remote branch]\n"
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else:
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branch = sys.argv[1]
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else:
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branch = "cborg/master"
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# Get the last commit message, then loop through looking at each line
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commit_message = subprocess.check_output(["git", "log", "-n1"]).split("\n")
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for line in commit_message:
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# Skip the initial few lines of the commit message
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m = pat_leading_space.match(line)
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if not m:
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continue
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# Remove initial whitespace
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line = line.lstrip(' ')
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# Add the 'UPSTREAM' comment to the subject line
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if len(new_commit_message) == 0:
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new_commit_message += "UPSTREAM: " + line + "\n"
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continue
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# If we've found a TEST, BRANCH, or BUG line, mark it as found
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if pat_test_line.match(line):
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test_line = ""
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if pat_bug_line.match(line):
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bug_line = ""
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if pat_branch_line.match(line):
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branch_line = ""
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# Grab the Change-Id
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chid = pat_change_id.match(line)
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if chid:
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change_id = chid.group(1)
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# Add 'Original-' to all of the coreboot.org gerrit messages
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grrt = pat_orig_lines.match(line)
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if grrt:
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line = "Original-" + line
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# if we've reached the end of the real commit message text and we don't
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# have the required TEST= BUG= and BRANCH= lines, add them.
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if (chid or grrt) and (bug_line or branch_line or test_line):
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new_commit_message += bug_line + branch_line + test_line + "\n"
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bug_line = branch_line = test_line = ""
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# Remove uninteresting gerrit messages
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if pat_uninteresting.match(line):
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continue
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# Add the current line to the updated commit message
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new_commit_message += line + "\n"
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# Error out if no Change-Id was located
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if not change_id:
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print "Error: No Change-Id found"
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sys.exit(1)
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# Get the Commit ID based on the Change-Id and the branch.
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# Error out if git returns an error
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try:
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commit_id = subprocess.check_output(["git", "log", "-n1", "--grep", change_id, '--pretty=%H', branch, "--"]).rstrip('\n')
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except:
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print "Error: invalid branch - " + branch + ".\n"
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sys.exit(1)
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# To find the Commit-Id, we've looked through the git log for a particular Change-Id
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# Error out if the Commit-Id wasn't found, with the message that we couldn't find the Change-Id
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if not commit_id:
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print "Error: Could not find Change-Id: " + change_id + " in branch " + branch + ".\n"
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sys.exit(1)
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# Add the Commit-Id that this change came from to the new commit message.
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new_commit_message += "(cherry-picked from commit " + commit_id + ")\n"
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# Update the commit message
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amend_output = subprocess.check_output(["git", "commit", "-s", "--amend", "-m", new_commit_message ])
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print "----------\n"
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print amend_output
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if __name__ == "__main__":
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main()
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