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https://github.com/git/git.git
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80 lines
2.1 KiB
Python
80 lines
2.1 KiB
Python
# Copyright (C) 2008 Canonical Ltd
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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; either version 2 of the License, or
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# (at your option) any later version.
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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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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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"""Date parsing routines.
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Each routine returns timestamp,timezone where
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* timestamp is seconds since epoch
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* timezone is the offset from UTC in seconds.
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"""
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import time
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from git_remote_helpers.fastimport import errors
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def parse_raw(s, lineno=0):
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"""Parse a date from a raw string.
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The format must be exactly "seconds-since-epoch offset-utc".
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See the spec for details.
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"""
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timestamp_str, timezone_str = s.split(' ', 1)
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timestamp = float(timestamp_str)
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timezone = _parse_tz(timezone_str, lineno)
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return timestamp, timezone
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def _parse_tz(tz, lineno):
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"""Parse a timezone specification in the [+|-]HHMM format.
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:return: the timezone offset in seconds.
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"""
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# from git_repository.py in bzr-git
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if len(tz) != 5:
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raise errors.InvalidTimezone(lineno, tz)
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sign = {'+': +1, '-': -1}[tz[0]]
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hours = int(tz[1:3])
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minutes = int(tz[3:])
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return sign * 60 * (60 * hours + minutes)
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def parse_rfc2822(s, lineno=0):
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"""Parse a date from a rfc2822 string.
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See the spec for details.
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"""
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raise NotImplementedError(parse_rfc2822)
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def parse_now(s, lineno=0):
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"""Parse a date from a string.
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The format must be exactly "now".
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See the spec for details.
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"""
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return time.time(), 0
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# Lookup tabel of date parsing routines
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DATE_PARSERS_BY_NAME = {
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'raw': parse_raw,
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'rfc2822': parse_rfc2822,
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'now': parse_now,
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}
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