Mercurial > hg > hg-fastimport
annotate hgext3rd/fastimport/vendor/python_fastimport/dates.py @ 88:2fc99e3479d9
python-fastimport: Import our own modules using relative pathing
This allows python-fastimport to be embedded as vendor code within
other modules.
This patch has been accepted upstream.
| author | Roy Marples <roy@marples.name> |
|---|---|
| date | Tue, 19 Jan 2021 23:00:01 +0000 |
| parents | 28704a2a7461 |
| children |
| rev | line source |
|---|---|
| 86 | 1 # Copyright (C) 2008 Canonical Ltd |
| 2 # | |
| 3 # This program is free software; you can redistribute it and/or modify | |
| 4 # it under the terms of the GNU General Public License as published by | |
| 5 # the Free Software Foundation; either version 2 of the License, or | |
| 6 # (at your option) any later version. | |
| 7 # | |
| 8 # This program is distributed in the hope that it will be useful, | |
| 9 # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 11 # GNU General Public License for more details. | |
| 12 # | |
| 13 # You should have received a copy of the GNU General Public License | |
| 14 # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 15 | |
| 16 """Date parsing routines. | |
| 17 | |
| 18 Each routine represents a date format that can be specified in a | |
| 19 stream using the date-format feature. The return value is | |
| 20 timestamp,timezone where | |
| 21 | |
| 22 * timestamp is seconds since epoch | |
| 23 * timezone is the offset from UTC in seconds. | |
| 24 """ | |
| 25 import time | |
| 26 | |
|
88
2fc99e3479d9
python-fastimport: Import our own modules using relative pathing
Roy Marples <roy@marples.name>
parents:
86
diff
changeset
|
27 from . import errors |
| 86 | 28 |
| 29 | |
| 30 def parse_raw(s, lineno=0): | |
| 31 """Parse a date from a raw string. | |
| 32 | |
| 33 The format must be exactly "seconds-since-epoch offset-utc". | |
| 34 See the spec for details. | |
| 35 """ | |
| 36 timestamp_str, timezone_str = s.split(b' ', 1) | |
| 37 timestamp = float(timestamp_str) | |
| 38 try: | |
| 39 timezone = parse_tz(timezone_str) | |
| 40 except ValueError: | |
| 41 raise errors.InvalidTimezone(lineno, timezone_str) | |
| 42 return timestamp, timezone | |
| 43 | |
| 44 | |
| 45 def parse_tz(tz): | |
| 46 """Parse a timezone specification in the [+|-]HHMM format. | |
| 47 | |
| 48 :return: the timezone offset in seconds. | |
| 49 """ | |
| 50 # from git_repository.py in bzr-git | |
| 51 sign_byte = tz[0:1] | |
| 52 # in python 3 b'+006'[0] would return an integer, | |
| 53 # but b'+006'[0:1] return a new bytes string. | |
| 54 if sign_byte not in (b'+', b'-'): | |
| 55 raise ValueError(tz) | |
| 56 | |
| 57 sign = {b'+': +1, b'-': -1}[sign_byte] | |
| 58 hours = int(tz[1:-2]) | |
| 59 minutes = int(tz[-2:]) | |
| 60 | |
| 61 return sign * 60 * (60 * hours + minutes) | |
| 62 | |
| 63 | |
| 64 def parse_rfc2822(s, lineno=0): | |
| 65 """Parse a date from a rfc2822 string. | |
| 66 | |
| 67 See the spec for details. | |
| 68 """ | |
| 69 raise NotImplementedError(parse_rfc2822) | |
| 70 | |
| 71 | |
| 72 def parse_now(s, lineno=0): | |
| 73 """Parse a date from a string. | |
| 74 | |
| 75 The format must be exactly "now". | |
| 76 See the spec for details. | |
| 77 """ | |
| 78 return time.time(), 0 | |
| 79 | |
| 80 | |
| 81 # Lookup tabel of date parsing routines | |
| 82 DATE_PARSERS_BY_NAME = { | |
| 83 u'raw': parse_raw, | |
| 84 u'rfc2822': parse_rfc2822, | |
| 85 u'now': parse_now, | |
| 86 } |