mercurial/scmposix.py

push: stop independent usage of bundle2 in syncphase (issue4454)

The phase-syncing code was using bundle2 if the remote supported it. It was
doing so without regard to bundle2 activation on the client. Moreover, the
phase push is now properly included in the unified bundle2 push, so having extra
code in syncphase should be useless. If the remote is bundle2-enabled, the
phases should already be synced.

The buggy verification code was leading to a crash when a 3.2 client was pushing
to a 3.1 server. The real bundle2 path detected that their versions were
incompatible, but the syncphase code failed to, sending an incompatible bundle2
to the server.

We drop the useless and buggy code as a result. The "else" clause is
de-indented in the process.

import sys, os
import osutil

def _rcfiles(path):
    rcs = [os.path.join(path, 'hgrc')]
    rcdir = os.path.join(path, 'hgrc.d')
    try:
        rcs.extend([os.path.join(rcdir, f)
                    for f, kind in osutil.listdir(rcdir)
                    if f.endswith(".rc")])
    except OSError:
        pass
    return rcs

def systemrcpath():
    path = []
    if sys.platform == 'plan9':
        root = 'lib/mercurial'
    else:
        root = 'etc/mercurial'
    # old mod_python does not set sys.argv
    if len(getattr(sys, 'argv', [])) > 0:
        p = os.path.dirname(os.path.dirname(sys.argv[0]))
        if p != '/':
            path.extend(_rcfiles(os.path.join(p, root)))
    path.extend(_rcfiles('/' + root))
    return path

def userrcpath():
    if sys.platform == 'plan9':
        return [os.environ['home'] + '/lib/hgrc']
    else:
        return [os.path.expanduser('~/.hgrc')]