blob: 4be334888eb850fe755fb2c2f5ebb7a9bcc223a7 [file] [log] [blame]
# Copyright 2020 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Some constants used for managing Monorail Projects."""
from __future__ import print_function
from __future__ import division
from __future__ import absolute_import
import re
PROJECT_NAME_PATTERN = '[a-z0-9][-a-z0-9]*[a-z0-9]'
MAX_PROJECT_NAME_LENGTH = 63
# Pattern to match a valid project name. Users of this pattern MUST use
# the re.VERBOSE flag or the whitespace and comments we be considered
# significant and the pattern will not work. See "re" module documentation.
_RE_PROJECT_NAME_PATTERN_VERBOSE = r"""
(?=[-a-z0-9]*[a-z][-a-z0-9]*) # Lookahead to make sure there is at least
# one letter in the whole name.
[a-z0-9] # Start with a letter or digit.
[-a-z0-9]* # Follow with any number of valid characters.
[a-z0-9] # End with a letter or digit.
"""
# Compiled regexp to match the project name and nothing more before or after.
RE_PROJECT_NAME = re.compile(
'^%s$' % _RE_PROJECT_NAME_PATTERN_VERBOSE, re.VERBOSE)