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# pager.py - display output using a pager
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#
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# Copyright 2008 David Soria Parra <dsp@php.net>
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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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#
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# To load the extension, add it to your configuration file:
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#
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# [extension]
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# pager =
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#
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# Run 'hg help pager' to get info on configuration.
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'''browse command output with an external pager (DEPRECATED)
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Forcibly enable paging for individual commands that don't typically
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request pagination with the attend-<command> option. This setting
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takes precedence over ignore options and defaults::
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[pager]
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attend-cat = false
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'''
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from __future__ import absolute_import
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from mercurial import (
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cmdutil,
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commands,
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dispatch,
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extensions,
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)
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# Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for
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# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
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# be specifying the version(s) of Mercurial they are tested with, or
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# leave the attribute unspecified.
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testedwith = 'ships-with-hg-core'
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def uisetup(ui):
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def pagecmd(orig, ui, options, cmd, cmdfunc):
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auto = options['pager'] == 'auto'
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if auto and not ui.pageractive:
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usepager = False
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attend = ui.configlist('pager', 'attend', attended)
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ignore = ui.configlist('pager', 'ignore')
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cmds, _ = cmdutil.findcmd(cmd, commands.table)
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for cmd in cmds:
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var = 'attend-%s' % cmd
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if ui.config('pager', var):
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usepager = ui.configbool('pager', var)
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break
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if (cmd in attend or
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(cmd not in ignore and not attend)):
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usepager = True
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break
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if usepager:
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# Slight hack: the attend list is supposed to override
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# the ignore list for the pager extension, but the
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# core code doesn't know about attend, so we have to
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# lobotomize the ignore list so that the extension's
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# behavior is preserved.
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ui.setconfig('pager', 'ignore', '', 'pager')
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ui.pager('extension-via-attend-' + cmd)
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return orig(ui, options, cmd, cmdfunc)
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# Wrap dispatch._runcommand after color is loaded so color can see
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# ui.pageractive. Otherwise, if we loaded first, color's wrapped
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# dispatch._runcommand would run without having access to ui.pageractive.
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def afterloaded(loaded):
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extensions.wrapfunction(dispatch, '_runcommand', pagecmd)
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extensions.afterloaded('color', afterloaded)
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attended = [
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'the-default-attend-list-is-now-empty-but-that-breaks-the-extension',
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]
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