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+## @file
+# Set up the git configuration for contributing to TianoCore projects
+#
+# Copyright (c) 2019, Linaro Ltd. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+
+from __future__ import print_function
+import argparse
+import os.path
+import re
+import sys
+
+try:
+ import git
+except ImportError:
+ print('Unable to load gitpython module - please install and try again.')
+ sys.exit(1)
+
+try:
+ # Try Python 2 'ConfigParser' module first since helpful lib2to3 will
+ # otherwise automagically load it with the name 'configparser'
+ import ConfigParser
+except ImportError:
+ # Otherwise, try loading the Python 3 'configparser' under an alias
+ try:
+ import configparser as ConfigParser
+ except ImportError:
+ print("Unable to load configparser/ConfigParser module - please install and try again!")
+ sys.exit(1)
+
+
+# Assumptions: Script is in edk2/BaseTools/Scripts,
+# templates in edk2/BaseTools/Conf
+CONFDIR = os.path.join(os.path.dirname(os.path.dirname(os.path.realpath(__file__))),
+ 'Conf')
+
+UPSTREAMS = [
+ {'name': 'edk2',
+ 'repo': 'https://github.com/tianocore/edk2.git',
+ 'list': 'devel@edk2.groups.io'},
+ {'name': 'edk2-platforms',
+ 'repo': 'https://github.com/tianocore/edk2-platforms.git',
+ 'list': 'devel@edk2.groups.io', 'prefix': 'edk2-platforms'},
+ {'name': 'edk2-non-osi',
+ 'repo': 'https://github.com/tianocore/edk2-non-osi.git',
+ 'list': 'devel@edk2.groups.io', 'prefix': 'edk2-non-osi'}
+ ]
+
+# The minimum version required for all of the below options to work
+MIN_GIT_VERSION = (1, 9, 0)
+
+# Set of options to be set identically for all repositories
+OPTIONS = [
+ {'section': 'am', 'option': 'keepcr', 'value': True},
+ {'section': 'am', 'option': 'signoff', 'value': True},
+ {'section': 'cherry-pick', 'option': 'signoff', 'value': True},
+ {'section': 'color', 'option': 'diff', 'value': True},
+ {'section': 'color', 'option': 'grep', 'value': 'auto'},
+ {'section': 'commit', 'option': 'signoff', 'value': True},
+ {'section': 'core', 'option': 'abbrev', 'value': 12},
+ {'section': 'core', 'option': 'attributesFile',
+ 'value': os.path.join(CONFDIR, 'gitattributes').replace('\\', '/')},
+ {'section': 'core', 'option': 'whitespace', 'value': 'cr-at-eol'},
+ {'section': 'diff', 'option': 'algorithm', 'value': 'patience'},
+ {'section': 'diff', 'option': 'orderFile',
+ 'value': os.path.join(CONFDIR, 'diff.order').replace('\\', '/')},
+ {'section': 'diff', 'option': 'renames', 'value': 'copies'},
+ {'section': 'diff', 'option': 'statGraphWidth', 'value': '20'},
+ {'section': 'diff "ini"', 'option': 'xfuncname',
+ 'value': '^\\\\[[A-Za-z0-9_., ]+]'},
+ {'section': 'format', 'option': 'coverLetter', 'value': True},
+ {'section': 'format', 'option': 'numbered', 'value': True},
+ {'section': 'format', 'option': 'signoff', 'value': False},
+ {'section': 'notes', 'option': 'rewriteRef', 'value': 'refs/notes/commits'},
+ {'section': 'sendemail', 'option': 'chainreplyto', 'value': False},
+ {'section': 'sendemail', 'option': 'thread', 'value': True},
+ ]
+
+
+def locate_repo():
+ """Opens a Repo object for the current tree, searching upwards in the directory hierarchy."""
+ try:
+ repo = git.Repo(path='.', search_parent_directories=True)
+ except (git.InvalidGitRepositoryError, git.NoSuchPathError):
+ print("It doesn't look like we're inside a git repository - aborting.")
+ sys.exit(2)
+ return repo
+
+
+def fuzzy_match_repo_url(one, other):
+ """Compares two repository URLs, ignoring protocol and optional trailing '.git'."""
+ oneresult = re.match(r'.*://(?P<oneresult>.*?)(\.git)*$', one)
+ otherresult = re.match(r'.*://(?P<otherresult>.*?)(\.git)*$', other)
+
+ if oneresult and otherresult:
+ onestring = oneresult.group('oneresult')
+ otherstring = otherresult.group('otherresult')
+ if onestring == otherstring:
+ return True
+
+ return False
+
+
+def get_upstream(url):
+ """Extracts the dict for the current repo origin."""
+ for upstream in UPSTREAMS:
+ if fuzzy_match_repo_url(upstream['repo'], url):
+ return upstream
+ print("Unknown upstream '%s' - aborting!" % url)
+ sys.exit(3)
+
+
+def check_versions():
+ """Checks versions of dependencies."""
+ version = git.cmd.Git().version_info
+
+ if version < MIN_GIT_VERSION:
+ print('Need git version %d.%d or later!' % (version[0], version[1]))
+ sys.exit(4)
+
+
+def write_config_value(repo, section, option, data):
+ """."""
+ with repo.config_writer(config_level='repository') as configwriter:
+ configwriter.set_value(section, option, data)
+
+
+if __name__ == '__main__':
+ check_versions()
+
+ PARSER = argparse.ArgumentParser(
+ description='Sets up a git repository according to TianoCore rules.')
+ PARSER.add_argument('-c', '--check',
+ help='check current config only, printing what would be changed',
+ action='store_true',
+ required=False)
+ PARSER.add_argument('-f', '--force',
+ help='overwrite existing settings conflicting with program defaults',
+ action='store_true',
+ required=False)
+ PARSER.add_argument('-v', '--verbose',
+ help='enable more detailed output',
+ action='store_true',
+ required=False)
+ ARGS = PARSER.parse_args()
+
+ REPO = locate_repo()
+ if REPO.bare:
+ print('Bare repo - please check out an upstream one!')
+ sys.exit(6)
+
+ URL = REPO.remotes.origin.url
+
+ UPSTREAM = get_upstream(URL)
+ if not UPSTREAM:
+ print("Upstream '%s' unknown, aborting!" % URL)
+ sys.exit(7)
+
+ # Set a list email address if our upstream wants it
+ if 'list' in UPSTREAM:
+ OPTIONS.append({'section': 'sendemail', 'option': 'to',
+ 'value': UPSTREAM['list']})
+ # Append a subject prefix entry to OPTIONS if our upstream wants it
+ if 'prefix' in UPSTREAM:
+ OPTIONS.append({'section': 'format', 'option': 'subjectPrefix',
+ 'value': "PATCH " + UPSTREAM['prefix']})
+
+ CONFIG = REPO.config_reader(config_level='repository')
+
+ for entry in OPTIONS:
+ exists = False
+ try:
+ # Make sure to read boolean/int settings as real type rather than strings
+ if isinstance(entry['value'], bool):
+ value = CONFIG.getboolean(entry['section'], entry['option'])
+ elif isinstance(entry['value'], int):
+ value = CONFIG.getint(entry['section'], entry['option'])
+ else:
+ value = CONFIG.get(entry['section'], entry['option'])
+
+ exists = True
+ # Don't bail out from options not already being set
+ except (ConfigParser.NoSectionError, ConfigParser.NoOptionError):
+ pass
+
+ if exists:
+ if value == entry['value']:
+ if ARGS.verbose:
+ print("%s.%s already set (to '%s')" % (entry['section'],
+ entry['option'], value))
+ else:
+ if ARGS.force:
+ write_config_value(REPO, entry['section'], entry['option'], entry['value'])
+ else:
+ print("Not overwriting existing %s.%s value:" % (entry['section'],
+ entry['option']))
+ print(" '%s' != '%s'" % (value, entry['value']))
+ print(" add '-f' to command line to force overwriting existing settings")
+ else:
+ print("%s.%s => '%s'" % (entry['section'], entry['option'], entry['value']))
+ if not ARGS.check:
+ write_config_value(REPO, entry['section'], entry['option'], entry['value'])