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−# pager.py - display output using a pager
+
−#
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−# Copyright 2008 David Soria Parra <dsp@php.net>
+
−#
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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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−# 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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−
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−'''browse command output with an external pager (DEPRECATED)
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−
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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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−
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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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−    registrar,
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−    )
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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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−
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−configtable = {}
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−configitem = registrar.configitem(configtable)
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−
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−configitem('pager', 'attend',
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−        default=lambda: attended,
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−)
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−
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−def uisetup(ui):
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−
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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')
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−            ignore = ui.configlist('pager', 'ignore')
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−            cmds, _ = cmdutil.findcmd(cmd, commands.table)
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−
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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, None):
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−                    usepager = ui.configbool('pager', var, True)
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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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−
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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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−            else:
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−                ui.disablepager()
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−        return orig(ui, options, cmd, cmdfunc)
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−
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−    extensions.wrapfunction(dispatch, '_runcommand', pagecmd)
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−
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−attended = ['annotate', 'cat', 'diff', 'export', 'glog', 'log', 'qdiff']