|
|
# progress.py progress bars related code
|
|
|
#
|
|
|
# Copyright (C) 2010 Augie Fackler <durin42@gmail.com>
|
|
|
#
|
|
|
# This software may be used and distributed according to the terms of the
|
|
|
# GNU General Public License version 2 or any later version.
|
|
|
|
|
|
from __future__ import absolute_import
|
|
|
|
|
|
import errno
|
|
|
import threading
|
|
|
import time
|
|
|
|
|
|
from .i18n import _
|
|
|
from . import encoding
|
|
|
|
|
|
|
|
|
def spacejoin(*args):
|
|
|
return b' '.join(s for s in args if s)
|
|
|
|
|
|
|
|
|
def shouldprint(ui):
|
|
|
return not (ui.quiet or ui.plain(b'progress')) and (
|
|
|
ui._isatty(ui.ferr) or ui.configbool(b'progress', b'assume-tty')
|
|
|
)
|
|
|
|
|
|
|
|
|
def fmtremaining(seconds):
|
|
|
"""format a number of remaining seconds in human readable way
|
|
|
|
|
|
This will properly display seconds, minutes, hours, days if needed"""
|
|
|
if seconds < 60:
|
|
|
# i18n: format XX seconds as "XXs"
|
|
|
return _(b"%02ds") % seconds
|
|
|
minutes = seconds // 60
|
|
|
if minutes < 60:
|
|
|
seconds -= minutes * 60
|
|
|
# i18n: format X minutes and YY seconds as "XmYYs"
|
|
|
return _(b"%dm%02ds") % (minutes, seconds)
|
|
|
# we're going to ignore seconds in this case
|
|
|
minutes += 1
|
|
|
hours = minutes // 60
|
|
|
minutes -= hours * 60
|
|
|
if hours < 30:
|
|
|
# i18n: format X hours and YY minutes as "XhYYm"
|
|
|
return _(b"%dh%02dm") % (hours, minutes)
|
|
|
# we're going to ignore minutes in this case
|
|
|
hours += 1
|
|
|
days = hours // 24
|
|
|
hours -= days * 24
|
|
|
if days < 15:
|
|
|
# i18n: format X days and YY hours as "XdYYh"
|
|
|
return _(b"%dd%02dh") % (days, hours)
|
|
|
# we're going to ignore hours in this case
|
|
|
days += 1
|
|
|
weeks = days // 7
|
|
|
days -= weeks * 7
|
|
|
if weeks < 55:
|
|
|
# i18n: format X weeks and YY days as "XwYYd"
|
|
|
return _(b"%dw%02dd") % (weeks, days)
|
|
|
# we're going to ignore days and treat a year as 52 weeks
|
|
|
weeks += 1
|
|
|
years = weeks // 52
|
|
|
weeks -= years * 52
|
|
|
# i18n: format X years and YY weeks as "XyYYw"
|
|
|
return _(b"%dy%02dw") % (years, weeks)
|
|
|
|
|
|
|
|
|
# file_write() and file_flush() of Python 2 do not restart on EINTR if
|
|
|
# the file is attached to a "slow" device (e.g. a terminal) and raise
|
|
|
# IOError. We cannot know how many bytes would be written by file_write(),
|
|
|
# but a progress text is known to be short enough to be written by a
|
|
|
# single write() syscall, so we can just retry file_write() with the whole
|
|
|
# text. (issue5532)
|
|
|
#
|
|
|
# This should be a short-term workaround. We'll need to fix every occurrence
|
|
|
# of write() to a terminal or pipe.
|
|
|
def _eintrretry(func, *args):
|
|
|
while True:
|
|
|
try:
|
|
|
return func(*args)
|
|
|
except IOError as err:
|
|
|
if err.errno == errno.EINTR:
|
|
|
continue
|
|
|
raise
|
|
|
|
|
|
|
|
|
class progbar(object):
|
|
|
def __init__(self, ui):
|
|
|
self.ui = ui
|
|
|
self._refreshlock = threading.Lock()
|
|
|
self.resetstate()
|
|
|
|
|
|
def resetstate(self):
|
|
|
self.topics = []
|
|
|
self.topicstates = {}
|
|
|
self.starttimes = {}
|
|
|
self.startvals = {}
|
|
|
self.printed = False
|
|
|
self.lastprint = time.time() + float(
|
|
|
self.ui.config(b'progress', b'delay')
|
|
|
)
|
|
|
self.curtopic = None
|
|
|
self.lasttopic = None
|
|
|
self.indetcount = 0
|
|
|
self.refresh = float(self.ui.config(b'progress', b'refresh'))
|
|
|
self.changedelay = max(
|
|
|
3 * self.refresh, float(self.ui.config(b'progress', b'changedelay'))
|
|
|
)
|
|
|
self.order = self.ui.configlist(b'progress', b'format')
|
|
|
self.estimateinterval = self.ui.configwith(
|
|
|
float, b'progress', b'estimateinterval'
|
|
|
)
|
|
|
|
|
|
def show(self, now, topic, pos, item, unit, total):
|
|
|
if not shouldprint(self.ui):
|
|
|
return
|
|
|
termwidth = self.width()
|
|
|
self.printed = True
|
|
|
head = b''
|
|
|
needprogress = False
|
|
|
tail = b''
|
|
|
for indicator in self.order:
|
|
|
add = b''
|
|
|
if indicator == b'topic':
|
|
|
add = topic
|
|
|
elif indicator == b'number':
|
|
|
if total:
|
|
|
add = b'%*d/%d' % (len(str(total)), pos, total)
|
|
|
else:
|
|
|
add = b'%d' % pos
|
|
|
elif indicator.startswith(b'item') and item:
|
|
|
slice = b'end'
|
|
|
if b'-' in indicator:
|
|
|
wid = int(indicator.split(b'-')[1])
|
|
|
elif b'+' in indicator:
|
|
|
slice = b'beginning'
|
|
|
wid = int(indicator.split(b'+')[1])
|
|
|
else:
|
|
|
wid = 20
|
|
|
if slice == b'end':
|
|
|
add = encoding.trim(item, wid, leftside=True)
|
|
|
else:
|
|
|
add = encoding.trim(item, wid)
|
|
|
add += (wid - encoding.colwidth(add)) * b' '
|
|
|
elif indicator == b'bar':
|
|
|
add = b''
|
|
|
needprogress = True
|
|
|
elif indicator == b'unit' and unit:
|
|
|
add = unit
|
|
|
elif indicator == b'estimate':
|
|
|
add = self.estimate(topic, pos, total, now)
|
|
|
elif indicator == b'speed':
|
|
|
add = self.speed(topic, pos, unit, now)
|
|
|
if not needprogress:
|
|
|
head = spacejoin(head, add)
|
|
|
else:
|
|
|
tail = spacejoin(tail, add)
|
|
|
if needprogress:
|
|
|
used = 0
|
|
|
if head:
|
|
|
used += encoding.colwidth(head) + 1
|
|
|
if tail:
|
|
|
used += encoding.colwidth(tail) + 1
|
|
|
progwidth = termwidth - used - 3
|
|
|
if total and pos <= total:
|
|
|
amt = pos * progwidth // total
|
|
|
bar = b'=' * (amt - 1)
|
|
|
if amt > 0:
|
|
|
bar += b'>'
|
|
|
bar += b' ' * (progwidth - amt)
|
|
|
else:
|
|
|
progwidth -= 3
|
|
|
self.indetcount += 1
|
|
|
# mod the count by twice the width so we can make the
|
|
|
# cursor bounce between the right and left sides
|
|
|
amt = self.indetcount % (2 * progwidth)
|
|
|
amt -= progwidth
|
|
|
bar = (
|
|
|
b' ' * int(progwidth - abs(amt))
|
|
|
+ b'<=>'
|
|
|
+ b' ' * int(abs(amt))
|
|
|
)
|
|
|
prog = b''.join((b'[', bar, b']'))
|
|
|
out = spacejoin(head, prog, tail)
|
|
|
else:
|
|
|
out = spacejoin(head, tail)
|
|
|
self._writeerr(b'\r' + encoding.trim(out, termwidth))
|
|
|
self.lasttopic = topic
|
|
|
self._flusherr()
|
|
|
|
|
|
def clear(self):
|
|
|
if not self.printed or not self.lastprint or not shouldprint(self.ui):
|
|
|
return
|
|
|
self._writeerr(b'\r%s\r' % (b' ' * self.width()))
|
|
|
self._flusherr()
|
|
|
if self.printed:
|
|
|
# force immediate re-paint of progress bar
|
|
|
self.lastprint = 0
|
|
|
|
|
|
def complete(self):
|
|
|
if not shouldprint(self.ui):
|
|
|
return
|
|
|
if self.ui.configbool(b'progress', b'clear-complete'):
|
|
|
self.clear()
|
|
|
else:
|
|
|
self._writeerr(b'\n')
|
|
|
self._flusherr()
|
|
|
|
|
|
def _flusherr(self):
|
|
|
_eintrretry(self.ui.ferr.flush)
|
|
|
|
|
|
def _writeerr(self, msg):
|
|
|
_eintrretry(self.ui.ferr.write, msg)
|
|
|
|
|
|
def width(self):
|
|
|
tw = self.ui.termwidth()
|
|
|
return min(int(self.ui.config(b'progress', b'width', default=tw)), tw)
|
|
|
|
|
|
def estimate(self, topic, pos, total, now):
|
|
|
if total is None:
|
|
|
return b''
|
|
|
initialpos = self.startvals[topic]
|
|
|
target = total - initialpos
|
|
|
delta = pos - initialpos
|
|
|
if delta > 0:
|
|
|
elapsed = now - self.starttimes[topic]
|
|
|
seconds = (elapsed * (target - delta)) // delta + 1
|
|
|
return fmtremaining(seconds)
|
|
|
return b''
|
|
|
|
|
|
def speed(self, topic, pos, unit, now):
|
|
|
initialpos = self.startvals[topic]
|
|
|
delta = pos - initialpos
|
|
|
elapsed = now - self.starttimes[topic]
|
|
|
if elapsed > 0:
|
|
|
return _(b'%d %s/sec') % (delta / elapsed, unit)
|
|
|
return b''
|
|
|
|
|
|
def _oktoprint(self, now):
|
|
|
'''Check if conditions are met to print - e.g. changedelay elapsed'''
|
|
|
if (
|
|
|
self.lasttopic is None # first time we printed
|
|
|
# not a topic change
|
|
|
or self.curtopic == self.lasttopic
|
|
|
# it's been long enough we should print anyway
|
|
|
or now - self.lastprint >= self.changedelay
|
|
|
):
|
|
|
return True
|
|
|
else:
|
|
|
return False
|
|
|
|
|
|
def _calibrateestimate(self, topic, now, pos):
|
|
|
"""Adjust starttimes and startvals for topic so ETA works better
|
|
|
|
|
|
If progress is non-linear (ex. get much slower in the last minute),
|
|
|
it's more friendly to only use a recent time span for ETA and speed
|
|
|
calculation.
|
|
|
|
|
|
[======================================> ]
|
|
|
^^^^^^^
|
|
|
estimateinterval, only use this for estimation
|
|
|
"""
|
|
|
interval = self.estimateinterval
|
|
|
if interval <= 0:
|
|
|
return
|
|
|
elapsed = now - self.starttimes[topic]
|
|
|
if elapsed > interval:
|
|
|
delta = pos - self.startvals[topic]
|
|
|
newdelta = delta * interval / elapsed
|
|
|
# If a stall happens temporarily, ETA could change dramatically
|
|
|
# frequently. This is to avoid such dramatical change and make ETA
|
|
|
# smoother.
|
|
|
if newdelta < 0.1:
|
|
|
return
|
|
|
self.startvals[topic] = pos - newdelta
|
|
|
self.starttimes[topic] = now - interval
|
|
|
|
|
|
def progress(self, topic, pos, item=b'', unit=b'', total=None):
|
|
|
if pos is None:
|
|
|
self.closetopic(topic)
|
|
|
return
|
|
|
now = time.time()
|
|
|
with self._refreshlock:
|
|
|
if topic not in self.topics:
|
|
|
self.starttimes[topic] = now
|
|
|
self.startvals[topic] = pos
|
|
|
self.topics.append(topic)
|
|
|
self.topicstates[topic] = pos, item, unit, total
|
|
|
self.curtopic = topic
|
|
|
self._calibrateestimate(topic, now, pos)
|
|
|
if now - self.lastprint >= self.refresh and self.topics:
|
|
|
if self._oktoprint(now):
|
|
|
self.lastprint = now
|
|
|
self.show(now, topic, *self.topicstates[topic])
|
|
|
|
|
|
def closetopic(self, topic):
|
|
|
with self._refreshlock:
|
|
|
self.starttimes.pop(topic, None)
|
|
|
self.startvals.pop(topic, None)
|
|
|
self.topicstates.pop(topic, None)
|
|
|
# reset the progress bar if this is the outermost topic
|
|
|
if self.topics and self.topics[0] == topic and self.printed:
|
|
|
self.complete()
|
|
|
self.resetstate()
|
|
|
# truncate the list of topics assuming all topics within
|
|
|
# this one are also closed
|
|
|
if topic in self.topics:
|
|
|
self.topics = self.topics[: self.topics.index(topic)]
|
|
|
# reset the last topic to the one we just unwound to,
|
|
|
# so that higher-level topics will be stickier than
|
|
|
# lower-level topics
|
|
|
if self.topics:
|
|
|
self.lasttopic = self.topics[-1]
|
|
|
else:
|
|
|
self.lasttopic = None
|
|
|
|
