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# progress.py progress bars related code
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#
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# Copyright (C) 2010 Augie Fackler <durin42@gmail.com>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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import sys
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import time
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import threading
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from mercurial import encoding
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from mercurial.i18n import _
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def spacejoin(*args):
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return ' '.join(s for s in args if s)
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def shouldprint(ui):
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return not ui.plain() and (ui._isatty(sys.stderr) or
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ui.configbool('progress', 'assume-tty'))
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def fmtremaining(seconds):
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"""format a number of remaining seconds in humain readable way
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This will properly display seconds, minutes, hours, days if needed"""
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if seconds < 60:
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# i18n: format XX seconds as "XXs"
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return _("%02ds") % (seconds)
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minutes = seconds // 60
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if minutes < 60:
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seconds -= minutes * 60
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# i18n: format X minutes and YY seconds as "XmYYs"
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return _("%dm%02ds") % (minutes, seconds)
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# we're going to ignore seconds in this case
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minutes += 1
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hours = minutes // 60
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minutes -= hours * 60
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if hours < 30:
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# i18n: format X hours and YY minutes as "XhYYm"
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return _("%dh%02dm") % (hours, minutes)
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# we're going to ignore minutes in this case
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hours += 1
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days = hours // 24
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hours -= days * 24
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if days < 15:
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# i18n: format X days and YY hours as "XdYYh"
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return _("%dd%02dh") % (days, hours)
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# we're going to ignore hours in this case
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days += 1
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weeks = days // 7
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days -= weeks * 7
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if weeks < 55:
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# i18n: format X weeks and YY days as "XwYYd"
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return _("%dw%02dd") % (weeks, days)
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# we're going to ignore days and treat a year as 52 weeks
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weeks += 1
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years = weeks // 52
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weeks -= years * 52
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# i18n: format X years and YY weeks as "XyYYw"
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return _("%dy%02dw") % (years, weeks)
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class progbar(object):
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def __init__(self, ui):
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self.ui = ui
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self._refreshlock = threading.Lock()
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self.resetstate()
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def resetstate(self):
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self.topics = []
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self.topicstates = {}
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self.starttimes = {}
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self.startvals = {}
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self.printed = False
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self.lastprint = time.time() + float(self.ui.config(
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'progress', 'delay', default=3))
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self.curtopic = None
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self.lasttopic = None
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self.indetcount = 0
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self.refresh = float(self.ui.config(
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'progress', 'refresh', default=0.1))
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self.changedelay = max(3 * self.refresh,
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float(self.ui.config(
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'progress', 'changedelay', default=1)))
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self.order = self.ui.configlist(
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'progress', 'format',
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default=['topic', 'bar', 'number', 'estimate'])
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def show(self, now, topic, pos, item, unit, total):
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if not shouldprint(self.ui):
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return
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termwidth = self.width()
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self.printed = True
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head = ''
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needprogress = False
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tail = ''
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for indicator in self.order:
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add = ''
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if indicator == 'topic':
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add = topic
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elif indicator == 'number':
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if total:
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add = ('% ' + str(len(str(total))) +
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's/%s') % (pos, total)
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else:
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add = str(pos)
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elif indicator.startswith('item') and item:
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slice = 'end'
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if '-' in indicator:
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wid = int(indicator.split('-')[1])
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elif '+' in indicator:
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slice = 'beginning'
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wid = int(indicator.split('+')[1])
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else:
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wid = 20
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if slice == 'end':
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add = encoding.trim(item, wid, leftside=True)
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else:
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add = encoding.trim(item, wid)
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add += (wid - encoding.colwidth(add)) * ' '
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elif indicator == 'bar':
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add = ''
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needprogress = True
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elif indicator == 'unit' and unit:
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add = unit
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elif indicator == 'estimate':
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add = self.estimate(topic, pos, total, now)
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elif indicator == 'speed':
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add = self.speed(topic, pos, unit, now)
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if not needprogress:
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head = spacejoin(head, add)
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else:
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tail = spacejoin(tail, add)
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if needprogress:
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used = 0
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if head:
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used += encoding.colwidth(head) + 1
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if tail:
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used += encoding.colwidth(tail) + 1
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progwidth = termwidth - used - 3
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if total and pos <= total:
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amt = pos * progwidth // total
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bar = '=' * (amt - 1)
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if amt > 0:
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bar += '>'
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bar += ' ' * (progwidth - amt)
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else:
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progwidth -= 3
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self.indetcount += 1
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# mod the count by twice the width so we can make the
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# cursor bounce between the right and left sides
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amt = self.indetcount % (2 * progwidth)
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amt -= progwidth
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bar = (' ' * int(progwidth - abs(amt)) + '<=>' +
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' ' * int(abs(amt)))
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prog = ''.join(('[', bar , ']'))
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out = spacejoin(head, prog, tail)
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else:
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out = spacejoin(head, tail)
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sys.stderr.write('\r' + encoding.trim(out, termwidth))
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self.lasttopic = topic
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sys.stderr.flush()
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def clear(self):
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if not shouldprint(self.ui):
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return
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sys.stderr.write('\r%s\r' % (' ' * self.width()))
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def complete(self):
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if not shouldprint(self.ui):
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return
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if self.ui.configbool('progress', 'clear-complete', default=True):
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self.clear()
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else:
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sys.stderr.write('\n')
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sys.stderr.flush()
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def width(self):
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tw = self.ui.termwidth()
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return min(int(self.ui.config('progress', 'width', default=tw)), tw)
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def estimate(self, topic, pos, total, now):
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if total is None:
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return ''
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initialpos = self.startvals[topic]
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target = total - initialpos
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delta = pos - initialpos
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if delta > 0:
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elapsed = now - self.starttimes[topic]
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if elapsed > float(
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self.ui.config('progress', 'estimate', default=2)):
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seconds = (elapsed * (target - delta)) // delta + 1
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return fmtremaining(seconds)
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return ''
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def speed(self, topic, pos, unit, now):
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initialpos = self.startvals[topic]
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delta = pos - initialpos
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elapsed = now - self.starttimes[topic]
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if elapsed > float(
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self.ui.config('progress', 'estimate', default=2)):
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return _('%d %s/sec') % (delta / elapsed, unit)
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return ''
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def _oktoprint(self, now):
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'''Check if conditions are met to print - e.g. changedelay elapsed'''
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if (self.lasttopic is None # first time we printed
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# not a topic change
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or self.curtopic == self.lasttopic
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# it's been long enough we should print anyway
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or now - self.lastprint >= self.changedelay):
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return True
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else:
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return False
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def progress(self, topic, pos, item='', unit='', total=None):
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now = time.time()
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self._refreshlock.acquire()
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try:
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if pos is None:
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self.starttimes.pop(topic, None)
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self.startvals.pop(topic, None)
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self.topicstates.pop(topic, None)
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# reset the progress bar if this is the outermost topic
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if self.topics and self.topics[0] == topic and self.printed:
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self.complete()
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self.resetstate()
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# truncate the list of topics assuming all topics within
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# this one are also closed
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if topic in self.topics:
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self.topics = self.topics[:self.topics.index(topic)]
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# reset the last topic to the one we just unwound to,
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# so that higher-level topics will be stickier than
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# lower-level topics
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if self.topics:
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self.lasttopic = self.topics[-1]
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else:
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self.lasttopic = None
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else:
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if topic not in self.topics:
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self.starttimes[topic] = now
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self.startvals[topic] = pos
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self.topics.append(topic)
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self.topicstates[topic] = pos, item, unit, total
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self.curtopic = topic
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if now - self.lastprint >= self.refresh and self.topics:
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if self._oktoprint(now):
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self.lastprint = now
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self.show(now, topic, *self.topicstates[topic])
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finally:
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self._refreshlock.release()
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