diff options
| -rw-r--r-- | TODO | 2 | ||||
| -rw-r--r-- | examples/plugins/leapsec | 68 | ||||
| -rw-r--r-- | src/plugins/leapsec.py | 134 |
3 files changed, 202 insertions, 2 deletions
@@ -27,8 +27,6 @@ List of plugins to implement: Identify active and visible windows Calendars: holidays, birthdays, name days, events Clock plugin with timezone support - Leap second announcement (should work (but tell) if the system does - not observe leap seconds or uses smear seconds) Summer time / standard time announcement (should support double summer time and similar) natural disaster reports diff --git a/examples/plugins/leapsec b/examples/plugins/leapsec new file mode 100644 index 0000000..db70870 --- /dev/null +++ b/examples/plugins/leapsec @@ -0,0 +1,68 @@ +# -*- python -*- + +# A xpybar configuration example testing the features of plugins.leapsec + +import time +import threading + +from plugins.leapsec import LeapSeconds +from plugins.clock import Clock + + +OUTPUT, HEIGHT, YPOS, TOP = 0, 12, 24, True + + +clock = Clock(sync_to = 0.5 * Clock.SECONDS) + +start_ = start +def start(): + start_() + async(lambda : clock.continuous_sync(lambda : bar.invalidate())) + + +leapsec_ = Sometimes(LeapSeconds, 30 * 24 * 60 * 2) + + +def redraw(): + announcements = leapsec_() + found = -1 + now = time.time() + for index in range(len(announcements)): + if announcements[index][3] >= now: + found = index + break + announcement = announcements[found] + text = '\033[%sm%s\033[00m ago' if found < 0 else 'in \033[%sm%s\033[00m' + def dur(t): + s, t = t % 60, t // 60 + m, t = t % 60, t // 60 + h, d = t % 24, t // 24 + if d > 0: + return '%id%ih%i\'%02i"' % (d, h, m, s) + elif h > 0: + return '%ih%i\'%02i"' % (h, m, s) + elif m > 0: + return '%i\'%02i"' % (m, s) + else: + return '%02is' % s + amount = ('+%i' if announcement[4] > 0 else '%i') % announcement[4] + c = '00' + time_until = announcement[3] - int(now) + if time_until >= 0: + if time_until < 10: + c = '41' + elif time_until < 60: + c = '31' + elif time_until < 60 * 60: + c = '33' + elif time_until < 24 * 60 * 60: + c = '32' + text %= (c, dur(abs(time_until))) + text = 'Leap: %s %s at end of UTC %s' % (amount, text, '%i-%02i-%0i' % announcement[:3]) + if announcement[5] == LeapSeconds.SECONDARY: + text += ' (secondary)' + if announcement[5] == LeapSeconds.OUT_OF_BAND: + text += ' (out of band)' + bar.clear() + bar.draw_coloured_text(0, 10, 0, 2, text) + diff --git a/src/plugins/leapsec.py b/src/plugins/leapsec.py new file mode 100644 index 0000000..f04ad8d --- /dev/null +++ b/src/plugins/leapsec.py @@ -0,0 +1,134 @@ +# -*- python -*- +''' +xpybar – xmobar replacement written in python +Copyright © 2014 Mattias Andrée (maandree@member.fsf.org) + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see <http://www.gnu.org/licenses/>. +''' + +import calendar + +from util import * + + +class LeapSeconds: + ''' + Leap second announcement monitor + ''' + + + PRIMARY = 0 + ''' + The leap occurs in a primarily preferred time slot + ''' + + SECONDARY = 1 + ''' + The leap occurs in a secondarily preferred time slot + ''' + + OUT_OF_BAND = 2 + ''' + The leap occurs out of band, not in any preferred time slot + ''' + + + def __init__(self): + ''' + Constructor + ''' + url = 'http://maia.usno.navy.mil/ser7/leapsec.dat' + announcements = spawn_read('wget', url, '-O', '-') + while ' ' in announcements: + announcements = announcements.replace(' ', ' ') + announcements = announcements.replace('= ', '=').replace('=JD ', '=JD') + announcements = [announcement.lstrip().split(' ') for announcement in announcements.split('\n')] + test = lambda announcement : announcement.startswith('TAI-UTC=') or announcement.startswith('UTC-TAI=') + announcements = [announcement[:3] + list(filter(test, announcement)) for announcement in announcements] + MONTHS = { 'JAN' : 1 + , 'FEB' : 2 + , 'MAR' : 3 + , 'APR' : 4 + , 'MAY' : 5 + , 'JUN' : 6 + , 'JUL' : 7 + , 'AUG' : 8 + , 'SEP' : 9 + , 'OCT' : 10 + , 'NOV' : 11 + , 'DEC' : 12 + } + DAYS_OF_MONTHS = [-1, 31, 28, 31, 30, 31, 30, 30, 31, 30, 31, 30, 31] + def translate(announcement): + announcement[0] = int(announcement[0]) + announcement[1] = MONTHS[announcement[1]] + announcement[2] = int(announcement[2]) - 1 + if announcement[3].startswith('TAI-UTC='): + announcement[3] = int(announcement[3].split('=')[1].split('.')[0]) + else: + announcement[3] = -(int(announcement[3].split('=')[1].split('.')[0])) + announcement.append(LeapSeconds.OUT_OF_BAND) + if announcement[2] == 0: + announcement[1] -= 1 + if announcement[1] == 0: + announcement[1] = 12 + announcement[0] -= 1 + announcement[2] = DAYS_OF_MONTHS[announcement[1]] + if announcement[2] == 2: + year = announcement[0] + if ((year % 4 == 0) and not (year % 100 == 0)) or (year % 400 == 0): + announcement[2] += 1 + if announcement[1] in (6, 12): + announcement[4] = LeapSeconds.PRIMARY + elif announcement[1] in (3, 9): + announcement[4] = LeapSeconds.SECONDARY + return announcement + announcements = [translate(announcement) for announcement in announcements] + for i in reversed(range(len(announcements) - 1)): + announcements[i + 1][3] -= announcements[i][3] + self.announcements = announcements[1:] + + + def __len__(self): + ''' + Get the number of available leap second announcements + + @return The number of available leap second announcements + ''' + return len(self.announcements) + + + def __getitem__(self, index): + ''' + Get a leap second announcement + + @param index:int? The index of the announcement, negative for reversed chronological indexing + @return :(year:int, The year the leap second will occur or occurred (UTC) + month:int, The month [1, 12] the leap second will occur or occurred (UTC) + day:int, The day [1, 31] the leap second will occur or occurred (UTC) + posix:int, The POSIX timestamp the leap will occur or occurred. + Keep in mind that POSIX time does not have leap seconds; + if `amount == 1` then this time will represent 00:00:00 at + the day directly after the day described by (`year`, `month`, `day`) + amount:int, The number of leap seconds introduced, can be negative but not zero + annon:int) Annonouncement class, either of: + LeapSeconds.PRIMARY, LeapSeconds.SECONDARY, LeapSeconds.OUT_OF_BAND + ''' + (y, m, d, a, t) = self.announcements[index] + s = 24 * 60 * 60 + a - 1 + if a > 0: + s += 1 + s = calendar.timegm((y, m, d, 0, 0, s)) + return (y, m, d, s, a, t) + |