view hgext/inotify/common.py @ 8311:e0eb03bfa5af

manpage build: fail early when xmlto is not available

When we try to build manpages with xmlto and sed, but xmlto is
missing fail at the xmlto stage.  Otherwise, one may run `cd doc;
make' and miss the warnings like:

  xmlto: not found
  sed: hg.1: No such file or directory

and end up with empty files installed as manpages.

# server.py - inotify common protocol code
#
# Copyright 2006, 2007, 2008 Bryan O'Sullivan <[e-mail]>
# Copyright 2007, 2008 Brendan Cully <[e-mail]>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2, incorporated herein by reference.

import cStringIO, socket, struct

version = 1

resphdrfmt = '>llllllll'
resphdrsize = struct.calcsize(resphdrfmt)

def recvcs(sock):
    cs = cStringIO.StringIO()
    s = True
    try:
        while s:
            s = sock.recv(65536)
            cs.write(s)
    finally:
        sock.shutdown(socket.SHUT_RD)
    cs.seek(0)
    return cs