hgext/pager.py
author FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
Sun, 28 Jun 2009 22:24:33 +0900
changeset 8972 5edd998e8d55
parent 8894 868670dbc237
child 9069 1abf3fdc5db4
permissions -rw-r--r--
i18n-jp: translation update for 288ba6d6c5c7 this revision consists of contribution by: Muraoka Yusuke<yusuke.muraoka@gmail.com> Tadashi Jokagi <elf@elf.no-ip.org> UENISHI Kota <kuenishi@gmail.com> Yuki KODAMA <endflow.net@gmail.com> FUJIWARA Katsunori <foozy@lares.dti.ne.jp>

# pager.py - display output using a pager
#
# Copyright 2008 David Soria Parra <dsp@php.net>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2, incorporated herein by reference.
#
# To load the extension, add it to your .hgrc file:
#
#   [extension]
#   hgext.pager =
#
# Run "hg help pager" to get info on configuration.

'''browse command output with an external pager

To set the pager that should be used, set the application variable:

  [pager]
  pager = LESS='FSRX' less

If no pager is set, the pager extensions uses the environment variable
$PAGER. If neither pager.pager, nor $PAGER is set, no pager is used.

If you notice "BROKEN PIPE" error messages, you can disable them by
setting:

  [pager]
  quiet = True

You can disable the pager for certain commands by adding them to the
pager.ignore list:

  [pager]
  ignore = version, help, update

You can also enable the pager only for certain commands using
pager.attend:

  [pager]
  attend = log

If pager.attend is present, pager.ignore will be ignored.

To ignore global commands like "hg version" or "hg help", you have to
specify them in the global .hgrc
'''

import sys, os, signal
from mercurial import dispatch, util, extensions

def uisetup(ui):
    def pagecmd(orig, ui, options, cmd, cmdfunc):
        p = ui.config("pager", "pager", os.environ.get("PAGER"))
        if p and sys.stdout.isatty() and '--debugger' not in sys.argv:
            attend = ui.configlist('pager', 'attend')
            if (cmd in attend or
                (cmd not in ui.configlist('pager', 'ignore') and not attend)):
                sys.stderr = sys.stdout = util.popen(p, "wb")
                if ui.configbool('pager', 'quiet'):
                    signal.signal(signal.SIGPIPE, signal.SIG_DFL)
        return orig(ui, options, cmd, cmdfunc)

    extensions.wrapfunction(dispatch, '_runcommand', pagecmd)