Mercurial > hg
view mercurial/progress.py @ 25783:1f6878c87c25
templater: introduce one-pass parsing of nested template strings
Instead of re-parsing quoted strings as templates, the tokenizer can delegate
the parsing of nested template strings to the parser. It has two benefits:
1. syntax errors can be reported with absolute positions
2. nested template can use quotes just like shell: "{"{rev}"}"
It doesn't sound nice that the tokenizer recurses into the parser. We could
instead make the tokenize itself recursive, but it would be much more
complicated because we would have to adjust binding strengths carefully and
put dummy infix operators to concatenate template fragments.
Now "string" token without r"" never appears. It will be removed by the next
patch.
author | Yuya Nishihara <yuya@tcha.org> |
---|---|
date | Mon, 15 Jun 2015 23:11:35 +0900 |
parents | 79c75459321e |
children | 56674fd6dabc |
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# 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. import sys import time import threading from mercurial import encoding from mercurial.i18n import _ def spacejoin(*args): return ' '.join(s for s in args if s) def shouldprint(ui): return not (ui.quiet or ui.plain()) and ( ui._isatty(sys.stderr) or ui.configbool('progress', 'assume-tty')) def fmtremaining(seconds): """format a number of remaining seconds in humain readable way This will properly display seconds, minutes, hours, days if needed""" if seconds < 60: # i18n: format XX seconds as "XXs" return _("%02ds") % (seconds) minutes = seconds // 60 if minutes < 60: seconds -= minutes * 60 # i18n: format X minutes and YY seconds as "XmYYs" return _("%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 _("%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 _("%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 _("%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 _("%dy%02dw") % (years, weeks) 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( 'progress', 'delay', default=3)) self.curtopic = None self.lasttopic = None self.indetcount = 0 self.refresh = float(self.ui.config( 'progress', 'refresh', default=0.1)) self.changedelay = max(3 * self.refresh, float(self.ui.config( 'progress', 'changedelay', default=1))) self.order = self.ui.configlist( 'progress', 'format', default=['topic', 'bar', 'number', 'estimate']) def show(self, now, topic, pos, item, unit, total): if not shouldprint(self.ui): return termwidth = self.width() self.printed = True head = '' needprogress = False tail = '' for indicator in self.order: add = '' if indicator == 'topic': add = topic elif indicator == 'number': if total: add = ('% ' + str(len(str(total))) + 's/%s') % (pos, total) else: add = str(pos) elif indicator.startswith('item') and item: slice = 'end' if '-' in indicator: wid = int(indicator.split('-')[1]) elif '+' in indicator: slice = 'beginning' wid = int(indicator.split('+')[1]) else: wid = 20 if slice == 'end': add = encoding.trim(item, wid, leftside=True) else: add = encoding.trim(item, wid) add += (wid - encoding.colwidth(add)) * ' ' elif indicator == 'bar': add = '' needprogress = True elif indicator == 'unit' and unit: add = unit elif indicator == 'estimate': add = self.estimate(topic, pos, total, now) elif indicator == '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 = '=' * (amt - 1) if amt > 0: bar += '>' bar += ' ' * (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 = (' ' * int(progwidth - abs(amt)) + '<=>' + ' ' * int(abs(amt))) prog = ''.join(('[', bar , ']')) out = spacejoin(head, prog, tail) else: out = spacejoin(head, tail) sys.stderr.write('\r' + encoding.trim(out, termwidth)) self.lasttopic = topic sys.stderr.flush() def clear(self): if not shouldprint(self.ui): return sys.stderr.write('\r%s\r' % (' ' * self.width())) def complete(self): if not shouldprint(self.ui): return if self.ui.configbool('progress', 'clear-complete', default=True): self.clear() else: sys.stderr.write('\n') sys.stderr.flush() def width(self): tw = self.ui.termwidth() return min(int(self.ui.config('progress', 'width', default=tw)), tw) def estimate(self, topic, pos, total, now): if total is None: return '' initialpos = self.startvals[topic] target = total - initialpos delta = pos - initialpos if delta > 0: elapsed = now - self.starttimes[topic] if elapsed > float( self.ui.config('progress', 'estimate', default=2)): seconds = (elapsed * (target - delta)) // delta + 1 return fmtremaining(seconds) return '' def speed(self, topic, pos, unit, now): initialpos = self.startvals[topic] delta = pos - initialpos elapsed = now - self.starttimes[topic] if elapsed > float( self.ui.config('progress', 'estimate', default=2)): return _('%d %s/sec') % (delta / elapsed, unit) return '' 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 progress(self, topic, pos, item='', unit='', total=None): now = time.time() self._refreshlock.acquire() try: if pos is None: 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 else: 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 if now - self.lastprint >= self.refresh and self.topics: if self._oktoprint(now): self.lastprint = now self.show(now, topic, *self.topicstates[topic]) finally: self._refreshlock.release()