libervia-backend: libervia/backend/tools/common/date

annotate libervia/backend/tools/common/date_utils.py @ 4088:4325a0f13b0f

tools (common/date_utils): update date parsing regex: the regex `<timestamp> + 30 minutes` was not parsed correctly, this update should fix it.

author	Goffi <goffi@goffi.org>
date	Thu, 08 Jun 2023 21:27:12 +0200
parents	4b842c1fb686
children	c6d85c31a59f

rev	line source
3028 ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2825 diff changeset	1 #!/usr/bin/env python3
3137 559a625a236b fixed shebangs Goffi <goffi@goffi.org> parents: 3136 diff changeset	2
2599 5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	3
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	4 # SAT: a jabber client
3479 be6d91572633 date update Goffi <goffi@goffi.org> parents: 3137 diff changeset	5 # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)
2599 5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	6
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	7 # This program is free software: you can redistribute it and/or modify
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	8 # it under the terms of the GNU Affero General Public License as published by
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	9 # the Free Software Foundation, either version 3 of the License, or
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	10 # (at your option) any later version.
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	11
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	12 # This program is distributed in the hope that it will be useful,
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	15 # GNU Affero General Public License for more details.
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	16
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	17 # You should have received a copy of the GNU Affero General Public License
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	19
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	20 """tools to help manipulating time and dates"""
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	21
3905 92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	22 from typing import Union
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	23 import calendar
2599 5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	24 import datetime
3905 92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	25 import re
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	26 import time
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	27
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	28 from babel import dates
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	29 from dateutil import parser, tz
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	30 from dateutil.parser import ParserError
2703 3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	31 from dateutil.relativedelta import relativedelta
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	32 from dateutil.utils import default_tzinfo
3905 92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	33
4071 4b842c1fb686 refactoring: renamed `sat` package to `libervia.backend` Goffi <goffi@goffi.org> parents: 4029 diff changeset	34 from libervia.backend.core import exceptions
4b842c1fb686 refactoring: renamed `sat` package to `libervia.backend` Goffi <goffi@goffi.org> parents: 4029 diff changeset	35 from libervia.backend.core.constants import Const as C
4b842c1fb686 refactoring: renamed `sat` package to `libervia.backend` Goffi <goffi@goffi.org> parents: 4029 diff changeset	36 from libervia.backend.core.i18n import _
2703 3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	37
3905 92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	38 RELATIVE_RE = re.compile(
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	39 r"\s*(?P<in>\bin\b)?"
4088 4325a0f13b0f tools (common/date_utils): update date parsing regex: Goffi <goffi@goffi.org> parents: 4071 diff changeset	40 r"(?P<date>[^+-][^+]+[^\s+-])?\s(?P<direction>[-+])?\s"
3905 92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	41 r"\s(?P<quantity>\d+)\s"
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	42 r"(?P<unit>(second\|sec\|s\|minute\|min\|month\|mo\|m\|hour\|hr\|h\|day\|d\|week\|w\|year\|yr\|y))s?"
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	43 r"(?P<ago>\s+ago)?\s*",
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	44 re.I
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	45 )
3599 ab1fe6b25631 tools (common/date_utils): accept more units (shortcuts) + fix timezone when date with relative delta is used Goffi <goffi@goffi.org> parents: 3518 diff changeset	46 TIME_SYMBOL_MAP = {
ab1fe6b25631 tools (common/date_utils): accept more units (shortcuts) + fix timezone when date with relative delta is used Goffi <goffi@goffi.org> parents: 3518 diff changeset	47 "s": "second",
ab1fe6b25631 tools (common/date_utils): accept more units (shortcuts) + fix timezone when date with relative delta is used Goffi <goffi@goffi.org> parents: 3518 diff changeset	48 "sec": "second",
ab1fe6b25631 tools (common/date_utils): accept more units (shortcuts) + fix timezone when date with relative delta is used Goffi <goffi@goffi.org> parents: 3518 diff changeset	49 "m": "minute",
ab1fe6b25631 tools (common/date_utils): accept more units (shortcuts) + fix timezone when date with relative delta is used Goffi <goffi@goffi.org> parents: 3518 diff changeset	50 "min": "minute",
ab1fe6b25631 tools (common/date_utils): accept more units (shortcuts) + fix timezone when date with relative delta is used Goffi <goffi@goffi.org> parents: 3518 diff changeset	51 "h": "hour",
ab1fe6b25631 tools (common/date_utils): accept more units (shortcuts) + fix timezone when date with relative delta is used Goffi <goffi@goffi.org> parents: 3518 diff changeset	52 "hr": "hour",
ab1fe6b25631 tools (common/date_utils): accept more units (shortcuts) + fix timezone when date with relative delta is used Goffi <goffi@goffi.org> parents: 3518 diff changeset	53 "d": "day",
ab1fe6b25631 tools (common/date_utils): accept more units (shortcuts) + fix timezone when date with relative delta is used Goffi <goffi@goffi.org> parents: 3518 diff changeset	54 "w": "week",
ab1fe6b25631 tools (common/date_utils): accept more units (shortcuts) + fix timezone when date with relative delta is used Goffi <goffi@goffi.org> parents: 3518 diff changeset	55 "mo": "month",
ab1fe6b25631 tools (common/date_utils): accept more units (shortcuts) + fix timezone when date with relative delta is used Goffi <goffi@goffi.org> parents: 3518 diff changeset	56 "y": "year",
ab1fe6b25631 tools (common/date_utils): accept more units (shortcuts) + fix timezone when date with relative delta is used Goffi <goffi@goffi.org> parents: 3518 diff changeset	57 "yr": "year",
ab1fe6b25631 tools (common/date_utils): accept more units (shortcuts) + fix timezone when date with relative delta is used Goffi <goffi@goffi.org> parents: 3518 diff changeset	58 }
3028 ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2825 diff changeset	59 YEAR_FIRST_RE = re.compile(r"\d{4}[^\d]+")
2703 3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	60 TZ_UTC = tz.tzutc()
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	61 TZ_LOCAL = tz.gettz()
2599 5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	62
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	63
2703 3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	64 def date_parse(value, default_tz=TZ_UTC):
2612 3e4e78de9cca tools (date_utils): moved date_parse to common.date_utils, because it can be used in frontends Goffi <goffi@goffi.org> parents: 2599 diff changeset	65 """Parse a date and return corresponding unix timestamp
3e4e78de9cca tools (date_utils): moved date_parse to common.date_utils, because it can be used in frontends Goffi <goffi@goffi.org> parents: 2599 diff changeset	66
2797 7968c8b7b5e1 tools (common): fixed dateutil.parser import Goffi <goffi@goffi.org> parents: 2771 diff changeset	67 @param value(unicode): date to parse, in any format supported by parser
2703 3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	68 @param default_tz(datetime.tzinfo): default timezone
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	69 @return (int): timestamp
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	70 """
3028 ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2825 diff changeset	71 value = str(value).strip()
2825 1b6547fb80da tools(common/date_utils): fixed order on year first + set default date for date_parse Goffi <goffi@goffi.org> parents: 2797 diff changeset	72 dayfirst = False if YEAR_FIRST_RE.match(value) else True
1b6547fb80da tools(common/date_utils): fixed order on year first + set default date for date_parse Goffi <goffi@goffi.org> parents: 2797 diff changeset	73
3629 025ea418032f tools (common/date_utils): parse `now` alone (when used without relative delta) Goffi <goffi@goffi.org> parents: 3518 diff changeset	74 try:
025ea418032f tools (common/date_utils): parse `now` alone (when used without relative delta) Goffi <goffi@goffi.org> parents: 3518 diff changeset	75 dt = default_tzinfo(
3905 92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	76 parser.parse(value, dayfirst=dayfirst),
3629 025ea418032f tools (common/date_utils): parse `now` alone (when used without relative delta) Goffi <goffi@goffi.org> parents: 3518 diff changeset	77 default_tz)
025ea418032f tools (common/date_utils): parse `now` alone (when used without relative delta) Goffi <goffi@goffi.org> parents: 3518 diff changeset	78 except ParserError as e:
025ea418032f tools (common/date_utils): parse `now` alone (when used without relative delta) Goffi <goffi@goffi.org> parents: 3518 diff changeset	79 if value == "now":
025ea418032f tools (common/date_utils): parse `now` alone (when used without relative delta) Goffi <goffi@goffi.org> parents: 3518 diff changeset	80 dt = datetime.datetime.now(tz.tzutc())
025ea418032f tools (common/date_utils): parse `now` alone (when used without relative delta) Goffi <goffi@goffi.org> parents: 3518 diff changeset	81 else:
3905 92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	82 try:
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	83 # the date may already be a timestamp
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	84 return int(value)
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	85 except ValueError:
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	86 raise e
2703 3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	87 return calendar.timegm(dt.utctimetuple())
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	88
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	89 def date_parse_ext(value, default_tz=TZ_UTC):
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	90 """Extended date parse which accept relative date
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	91
2797 7968c8b7b5e1 tools (common): fixed dateutil.parser import Goffi <goffi@goffi.org> parents: 2771 diff changeset	92 @param value(unicode): date to parse, in any format supported by parser
2703 3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	93 and with the hability to specify X days/weeks/months/years in the past or future.
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	94 Relative date are specified either with something like `[main_date] +1 week`
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	95 or with something like `3 days ago`, and it is case insensitive. [main_date] is
2797 7968c8b7b5e1 tools (common): fixed dateutil.parser import Goffi <goffi@goffi.org> parents: 2771 diff changeset	96 a date parsable by parser, or empty to specify current date/time.
2703 3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	97 "now" can also be used to specify current date/time.
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	98 @param default_tz(datetime.tzinfo): same as for date_parse
2612 3e4e78de9cca tools (date_utils): moved date_parse to common.date_utils, because it can be used in frontends Goffi <goffi@goffi.org> parents: 2599 diff changeset	99 @return (int): timestamp
3e4e78de9cca tools (date_utils): moved date_parse to common.date_utils, because it can be used in frontends Goffi <goffi@goffi.org> parents: 2599 diff changeset	100 """
2703 3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	101 m = RELATIVE_RE.match(value)
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	102 if m is None:
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	103 return date_parse(value, default_tz=default_tz)
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	104
3905 92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	105 if sum(1 for g in ("direction", "in", "ago") if m.group(g)) > 1:
2703 3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	106 raise ValueError(
3905 92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	107 _('You can use only one of direction (+ or -), "in" and "ago"'))
2703 3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	108
3028 ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2825 diff changeset	109 if m.group("direction") == '-' or m.group("ago"):
2703 3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	110 direction = -1
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	111 else:
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	112 direction = 1
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	113
3905 92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	114 date = m.group("date")
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	115 if date is not None:
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	116 date = date.strip()
3028 ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2825 diff changeset	117 if not date or date == "now":
2703 3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	118 dt = datetime.datetime.now(tz.tzutc())
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	119 else:
3905 92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	120 try:
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	121 dt = default_tzinfo(parser.parse(date, dayfirst=True), default_tz)
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	122 except ParserError as e:
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	123 try:
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	124 timestamp = int(date)
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	125 except ValueError:
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	126 raise e
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	127 else:
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	128 dt = datetime.datetime.fromtimestamp(timestamp, tz.tzutc())
2703 3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	129
3028 ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2825 diff changeset	130 quantity = int(m.group("quantity"))
3599 ab1fe6b25631 tools (common/date_utils): accept more units (shortcuts) + fix timezone when date with relative delta is used Goffi <goffi@goffi.org> parents: 3518 diff changeset	131 unit = m.group("unit").lower()
ab1fe6b25631 tools (common/date_utils): accept more units (shortcuts) + fix timezone when date with relative delta is used Goffi <goffi@goffi.org> parents: 3518 diff changeset	132 try:
ab1fe6b25631 tools (common/date_utils): accept more units (shortcuts) + fix timezone when date with relative delta is used Goffi <goffi@goffi.org> parents: 3518 diff changeset	133 unit = TIME_SYMBOL_MAP[unit]
ab1fe6b25631 tools (common/date_utils): accept more units (shortcuts) + fix timezone when date with relative delta is used Goffi <goffi@goffi.org> parents: 3518 diff changeset	134 except KeyError:
ab1fe6b25631 tools (common/date_utils): accept more units (shortcuts) + fix timezone when date with relative delta is used Goffi <goffi@goffi.org> parents: 3518 diff changeset	135 pass
ab1fe6b25631 tools (common/date_utils): accept more units (shortcuts) + fix timezone when date with relative delta is used Goffi <goffi@goffi.org> parents: 3518 diff changeset	136 delta_kw = {f"{unit}s": direction * quantity}
2703 3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	137 dt = dt + relativedelta(**delta_kw)
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	138 return calendar.timegm(dt.utctimetuple())
2612 3e4e78de9cca tools (date_utils): moved date_parse to common.date_utils, because it can be used in frontends Goffi <goffi@goffi.org> parents: 2599 diff changeset	139
3e4e78de9cca tools (date_utils): moved date_parse to common.date_utils, because it can be used in frontends Goffi <goffi@goffi.org> parents: 2599 diff changeset	140
4028 883db2790b11 tools (common/date_utils): let use a timezone name as str in `date_fmt` Goffi <goffi@goffi.org> parents: 3905 diff changeset	141 def date_fmt(
883db2790b11 tools (common/date_utils): let use a timezone name as str in `date_fmt` Goffi <goffi@goffi.org> parents: 3905 diff changeset	142 timestamp: Union[float, int, str],
883db2790b11 tools (common/date_utils): let use a timezone name as str in `date_fmt` Goffi <goffi@goffi.org> parents: 3905 diff changeset	143 fmt: str = "short",
883db2790b11 tools (common/date_utils): let use a timezone name as str in `date_fmt` Goffi <goffi@goffi.org> parents: 3905 diff changeset	144 date_only: bool = False,
883db2790b11 tools (common/date_utils): let use a timezone name as str in `date_fmt` Goffi <goffi@goffi.org> parents: 3905 diff changeset	145 auto_limit: int = 7,
883db2790b11 tools (common/date_utils): let use a timezone name as str in `date_fmt` Goffi <goffi@goffi.org> parents: 3905 diff changeset	146 auto_old_fmt: str = "short",
883db2790b11 tools (common/date_utils): let use a timezone name as str in `date_fmt` Goffi <goffi@goffi.org> parents: 3905 diff changeset	147 auto_new_fmt: str = "relative",
883db2790b11 tools (common/date_utils): let use a timezone name as str in `date_fmt` Goffi <goffi@goffi.org> parents: 3905 diff changeset	148 locale_str: str = C.DEFAULT_LOCALE,
883db2790b11 tools (common/date_utils): let use a timezone name as str in `date_fmt` Goffi <goffi@goffi.org> parents: 3905 diff changeset	149 tz_info: Union[datetime.tzinfo, str] = TZ_UTC
883db2790b11 tools (common/date_utils): let use a timezone name as str in `date_fmt` Goffi <goffi@goffi.org> parents: 3905 diff changeset	150 ) -> str:
883db2790b11 tools (common/date_utils): let use a timezone name as str in `date_fmt` Goffi <goffi@goffi.org> parents: 3905 diff changeset	151 """Format date according to locale
2599 5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	152
4028 883db2790b11 tools (common/date_utils): let use a timezone name as str in `date_fmt` Goffi <goffi@goffi.org> parents: 3905 diff changeset	153 @param timestamp: unix time
883db2790b11 tools (common/date_utils): let use a timezone name as str in `date_fmt` Goffi <goffi@goffi.org> parents: 3905 diff changeset	154 @param fmt: one of:
2599 5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	155 - short: e.g. u'31/12/17'
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	156 - medium: e.g. u'Apr 1, 2007'
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	157 - long: e.g. u'April 1, 2007'
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	158 - full: e.g. u'Sunday, April 1, 2007'
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	159 - relative: format in relative time
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	160 e.g.: 3 hours
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	161 note that this format is not precise
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	162 - iso: ISO 8601 format
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	163 e.g.: u'2007-04-01T19:53:23Z'
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	164 - auto: use auto_old_fmt if date is older than auto_limit
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	165 else use auto_new_fmt
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	166 - auto_day: shorcut to set auto format with change on day
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	167 old format will be short, and new format will be time only
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	168 or a free value which is passed to babel.dates.format_datetime
2703 3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	169 (see http://babel.pocoo.org/en/latest/dates.html?highlight=pattern#pattern-syntax)
4028 883db2790b11 tools (common/date_utils): let use a timezone name as str in `date_fmt` Goffi <goffi@goffi.org> parents: 3905 diff changeset	170 @param date_only: if True, only display date (not datetime)
883db2790b11 tools (common/date_utils): let use a timezone name as str in `date_fmt` Goffi <goffi@goffi.org> parents: 3905 diff changeset	171 @param auto_limit: limit in days before using auto_old_fmt
2599 5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	172 use 0 to have a limit at last midnight (day change)
4028 883db2790b11 tools (common/date_utils): let use a timezone name as str in `date_fmt` Goffi <goffi@goffi.org> parents: 3905 diff changeset	173 @param auto_old_fmt: format to use when date is older than limit
883db2790b11 tools (common/date_utils): let use a timezone name as str in `date_fmt` Goffi <goffi@goffi.org> parents: 3905 diff changeset	174 @param auto_new_fmt: format to use when date is equal to or more recent
2599 5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	175 than limit
4028 883db2790b11 tools (common/date_utils): let use a timezone name as str in `date_fmt` Goffi <goffi@goffi.org> parents: 3905 diff changeset	176 @param locale_str: locale to use (as understood by babel)
883db2790b11 tools (common/date_utils): let use a timezone name as str in `date_fmt` Goffi <goffi@goffi.org> parents: 3905 diff changeset	177 @param tz_info: time zone to use
2599 5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	178
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	179 """
2703 3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	180 timestamp = float(timestamp)
4028 883db2790b11 tools (common/date_utils): let use a timezone name as str in `date_fmt` Goffi <goffi@goffi.org> parents: 3905 diff changeset	181 if isinstance(tz_info, str):
883db2790b11 tools (common/date_utils): let use a timezone name as str in `date_fmt` Goffi <goffi@goffi.org> parents: 3905 diff changeset	182 tz_info = tz.gettz(tz_info)
2624 56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2612 diff changeset	183 if fmt == "auto_day":
56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2612 diff changeset	184 fmt, auto_limit, auto_old_fmt, auto_new_fmt = "auto", 0, "short", "HH:mm"
56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2612 diff changeset	185 if fmt == "auto":
2599 5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	186 if auto_limit == 0:
2703 3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	187 now = datetime.datetime.now(tz_info)
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	188 # we want to use given tz_info, so we don't use date() or today()
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	189 today = datetime.datetime(year=now.year, month=now.month, day=now.day,
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	190 tzinfo=now.tzinfo)
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	191 today = calendar.timegm(today.utctimetuple())
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	192 if timestamp < today:
2599 5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	193 fmt = auto_old_fmt
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	194 else:
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	195 fmt = auto_new_fmt
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	196 else:
2703 3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	197 days_delta = (time.time() - timestamp) / 3600
2599 5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	198 if days_delta > (auto_limit or 7):
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	199 fmt = auto_old_fmt
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	200 else:
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	201 fmt = auto_new_fmt
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	202
2624 56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2612 diff changeset	203 if fmt == "relative":
2703 3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	204 delta = timestamp - time.time()
2624 56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2612 diff changeset	205 return dates.format_timedelta(
56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2612 diff changeset	206 delta, granularity="minute", add_direction=True, locale=locale_str
56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2612 diff changeset	207 )
3518 b258dce27d6d tools (common/date_utils): fix `date_only` for `short`, `long` and `full` format Goffi <goffi@goffi.org> parents: 3479 diff changeset	208 elif fmt in ("short", "long", "full"):
2703 3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	209 if date_only:
3518 b258dce27d6d tools (common/date_utils): fix `date_only` for `short`, `long` and `full` format Goffi <goffi@goffi.org> parents: 3479 diff changeset	210 dt = datetime.datetime.fromtimestamp(timestamp, tz_info)
2703 3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	211 return dates.format_date(dt, format=fmt, locale=locale_str)
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	212 else:
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	213 return dates.format_datetime(timestamp, format=fmt, locale=locale_str,
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	214 tzinfo=tz_info)
2624 56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2612 diff changeset	215 elif fmt == "iso":
2599 5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	216 if date_only:
2624 56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2612 diff changeset	217 fmt = "yyyy-MM-dd"
2599 5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	218 else:
5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	219 fmt = "yyyy-MM-ddTHH:mm:ss'Z'"
2703 3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	220 return dates.format_datetime(timestamp, format=fmt)
2599 5b26033c49a8 tools (common): moved date_fmt function from template filters to new date_utils module, so it can be used everywhere. Goffi <goffi@goffi.org> parents: diff changeset	221 else:
2703 3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	222 return dates.format_datetime(timestamp, format=fmt, locale=locale_str,
3ba53b1cd1e6 tools (common/date_utils): date_parse_ext + timezone handling: Goffi <goffi@goffi.org> parents: 2624 diff changeset	223 tzinfo=tz_info)
3905 92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	224
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	225
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	226 def delta2human(start_ts: Union[float, int], end_ts: Union[float, int]) -> str:
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	227 """Convert delta of 2 unix times to human readable text
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	228
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	229 @param start_ts: timestamp of starting time
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	230 @param end_ts: timestamp of ending time
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	231 """
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	232 if end_ts < start_ts:
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	233 raise exceptions.InternalError(
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	234 "end timestamp must be bigger or equal to start timestamp !"
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	235 )
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	236 rd = relativedelta(
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	237 datetime.datetime.fromtimestamp(end_ts),
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	238 datetime.datetime.fromtimestamp(start_ts)
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	239 )
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	240 text_elems = []
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	241 for unit in ("years", "months", "days", "hours", "minutes"):
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	242 value = getattr(rd, unit)
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	243 if value == 1:
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	244 # we remove final "s" when there is only 1
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	245 text_elems.append(f"1 {unit[:-1]}")
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	246 elif value > 1:
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	247 text_elems.append(f"{value} {unit}")
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	248
92482cc80d0b tools (common/date_utils) handle timestamp and `in` + `delta2human`: Goffi <goffi@goffi.org> parents: 3631 diff changeset	249 return ", ".join(text_elems)
4029 432f7e422a27 tools (common/date_utils): new `get_timezone_name` to retrieve it from a tzinfo and a timestamp Goffi <goffi@goffi.org> parents: 4028 diff changeset	250
432f7e422a27 tools (common/date_utils): new `get_timezone_name` to retrieve it from a tzinfo and a timestamp Goffi <goffi@goffi.org> parents: 4028 diff changeset	251
432f7e422a27 tools (common/date_utils): new `get_timezone_name` to retrieve it from a tzinfo and a timestamp Goffi <goffi@goffi.org> parents: 4028 diff changeset	252 def get_timezone_name(tzinfo, timestamp: Union[float, int]) -> str:
432f7e422a27 tools (common/date_utils): new `get_timezone_name` to retrieve it from a tzinfo and a timestamp Goffi <goffi@goffi.org> parents: 4028 diff changeset	253 """
432f7e422a27 tools (common/date_utils): new `get_timezone_name` to retrieve it from a tzinfo and a timestamp Goffi <goffi@goffi.org> parents: 4028 diff changeset	254 Get the DST-aware timezone name for a given timezone and timestamp.
432f7e422a27 tools (common/date_utils): new `get_timezone_name` to retrieve it from a tzinfo and a timestamp Goffi <goffi@goffi.org> parents: 4028 diff changeset	255
432f7e422a27 tools (common/date_utils): new `get_timezone_name` to retrieve it from a tzinfo and a timestamp Goffi <goffi@goffi.org> parents: 4028 diff changeset	256 @param tzinfo: The timezone to get the name for
432f7e422a27 tools (common/date_utils): new `get_timezone_name` to retrieve it from a tzinfo and a timestamp Goffi <goffi@goffi.org> parents: 4028 diff changeset	257 @param timestamp: The timestamp to use, as a Unix timestamp (number of seconds since
432f7e422a27 tools (common/date_utils): new `get_timezone_name` to retrieve it from a tzinfo and a timestamp Goffi <goffi@goffi.org> parents: 4028 diff changeset	258 the Unix epoch).
432f7e422a27 tools (common/date_utils): new `get_timezone_name` to retrieve it from a tzinfo and a timestamp Goffi <goffi@goffi.org> parents: 4028 diff changeset	259 @return: The DST-aware timezone name.
432f7e422a27 tools (common/date_utils): new `get_timezone_name` to retrieve it from a tzinfo and a timestamp Goffi <goffi@goffi.org> parents: 4028 diff changeset	260 """
432f7e422a27 tools (common/date_utils): new `get_timezone_name` to retrieve it from a tzinfo and a timestamp Goffi <goffi@goffi.org> parents: 4028 diff changeset	261
432f7e422a27 tools (common/date_utils): new `get_timezone_name` to retrieve it from a tzinfo and a timestamp Goffi <goffi@goffi.org> parents: 4028 diff changeset	262 dt = datetime.datetime.fromtimestamp(timestamp)
432f7e422a27 tools (common/date_utils): new `get_timezone_name` to retrieve it from a tzinfo and a timestamp Goffi <goffi@goffi.org> parents: 4028 diff changeset	263 dt_tz = dt.replace(tzinfo=tzinfo)
432f7e422a27 tools (common/date_utils): new `get_timezone_name` to retrieve it from a tzinfo and a timestamp Goffi <goffi@goffi.org> parents: 4028 diff changeset	264 tz_name = dt_tz.tzname()
432f7e422a27 tools (common/date_utils): new `get_timezone_name` to retrieve it from a tzinfo and a timestamp Goffi <goffi@goffi.org> parents: 4028 diff changeset	265 if tz_name is None:
432f7e422a27 tools (common/date_utils): new `get_timezone_name` to retrieve it from a tzinfo and a timestamp Goffi <goffi@goffi.org> parents: 4028 diff changeset	266 raise exceptions.InternalError("tz_name should not be None")
432f7e422a27 tools (common/date_utils): new `get_timezone_name` to retrieve it from a tzinfo and a timestamp Goffi <goffi@goffi.org> parents: 4028 diff changeset	267 return tz_name

Mercurial > libervia-backend

annotate libervia/backend/tools/common/date_utils.py @ 4088:4325a0f13b0f