#!/usr/bin/env python

# Since it's not easy to write a test that portably deals

# with files from different users/groups, we cheat a bit by

# monkey-patching some functions in the util module

import os

from mercurial import ui, util

hgrc = os.environ['HGRCPATH']

def testui(user='foo', group='bar', tusers=(), tgroups=(),

           cuser='foo', cgroup='bar', debug=False):

    # user, group => owners of the file

    # tusers, tgroups => trusted users/groups

    # cuser, cgroup => user/group of the current process

    # write a global hgrc with the list of trusted users/groups and

    # some setting so that we can be sure it was read

    f = open(hgrc, 'w')

    f.write('[paths]\n')

    f.write('global = /some/path\n\n')

    if tusers or tgroups:

        f.write('[trusted]\n')

        if tusers:

            f.write('users = %s\n' % ', '.join(tusers))

        if tgroups:

            f.write('groups = %s\n' % ', '.join(tgroups))

    f.close()

    # override the functions that give names to uids and gids

    def username(uid=None):

        if uid is None:

            return cuser

        return user

    util.username = username

    def groupname(gid=None):

        if gid is None:

            return 'bar'

        return group

    util.groupname = groupname

    # try to read everything

    #print '# File belongs to user %s, group %s' % (user, group)

    #print '# trusted users = %s; trusted groups = %s' % (tusers, tgroups)

    kind = ('different', 'same')

    who = ('', 'user', 'group', 'user and the group')

    trusted = who[(user in tusers) + 2*(group in tgroups)]

    if trusted:

        trusted = ', but we trust the ' + trusted

    print '# %s user, %s group%s' % (kind[user == cuser], kind[group == cgroup],

                                     trusted)

    parentui = ui.ui()

    parentui.updateopts(debug=debug)

    u = ui.ui(parentui=parentui)

    u.readconfig('.hg/hgrc')

    for name, path in u.configitems('paths'):

        print '   ', name, '=', path

    print

    return u

os.mkdir('repo')

os.chdir('repo')

os.mkdir('.hg')

f = open('.hg/hgrc', 'w')

f.write('[paths]\n')

f.write('local = /another/path\n\n')

f.close()

#print '# Everything is run by user foo, group bar\n'

# same user, same group

testui()

# same user, different group

testui(group='def')

# different user, same group

testui(user='abc')

# ... but we trust the group

testui(user='abc', tgroups=['bar'])

# different user, different group

testui(user='abc', group='def')

# ... but we trust the user

testui(user='abc', group='def', tusers=['abc'])

# ... but we trust the group

testui(user='abc', group='def', tgroups=['def'])

# ... but we trust the user and the group

testui(user='abc', group='def', tusers=['abc'], tgroups=['def'])

# ... but we trust all users

print '# we trust all users'

testui(user='abc', group='def', tusers=['*'])

# ... but we trust all groups

print '# we trust all groups'

testui(user='abc', group='def', tgroups=['*'])

# ... but we trust the whole universe

print '# we trust all users and groups'

testui(user='abc', group='def', tusers=['*'], tgroups=['*'])

# ... check that users and groups are in different namespaces

print "# we don't get confused by users and groups with the same name"

testui(user='abc', group='def', tusers=['def'], tgroups=['abc'])

# ... lists of user names work

print "# list of user names"

testui(user='abc', group='def', tusers=['foo', 'xyz', 'abc', 'bleh'],

       tgroups=['bar', 'baz', 'qux'])

# ... lists of group names work

print "# list of group names"

testui(user='abc', group='def', tusers=['foo', 'xyz', 'bleh'],

       tgroups=['bar', 'def', 'baz', 'qux'])

print "# Can't figure out the name of the user running this process"

testui(user='abc', group='def', cuser=None)