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commands.push: abort when revisions evaluate to empty set (BC)...
commands.push: abort when revisions evaluate to empty set (BC) If the "-r" argument is specified to "hg push," the user has expressed an intent for a specific changeset to be present on the remote. If that expression cannot be mapped to a known changeset, the user's intent is ambiguous and cannot be acted upon without making assumptions. Previously, if arguments to `push -r <rev>` evaluated to an empty set (perhaps the user specified a revset that didn't evaluate to anything), the empty "revs" list would be passed down to "exchange.push" where it appears the empty list was being interpreted as "push everything." This patch adds validation to the "-r" argument to the push command. If the argument is specified but doesn't resolve to a changeset, the command will abort instead of doing something potentially unexpected. This patch is technically breaking backwards compatibility. I believe this is justified because the new behavior closes a crack that could result in undefined or under-defined behavior. Also, this patch doesn't drop client capabilities because if users really wanted to push all changesets, they can simply omit the "-r" argument from push completely.

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__init__.py
31 lines | 1.0 KiB | text/x-python | PythonLexer
# hgweb/__init__.py - web interface to a mercurial repository
#
# Copyright 21 May 2005 - (c) 2005 Jake Edge <jake@edge2.net>
# Copyright 2005 Matt Mackall <mpm@selenic.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
import os
import hgweb_mod, hgwebdir_mod
def hgweb(config, name=None, baseui=None):
'''create an hgweb wsgi object
config can be one of:
- repo object (single repo view)
- path to repo (single repo view)
- path to config file (multi-repo view)
- dict of virtual:real pairs (multi-repo view)
- list of virtual:real tuples (multi-repo view)
'''
if ((isinstance(config, str) and not os.path.isdir(config)) or
isinstance(config, dict) or isinstance(config, list)):
# create a multi-dir interface
return hgwebdir_mod.hgwebdir(config, baseui=baseui)
return hgweb_mod.hgweb(config, name=name, baseui=baseui)
def hgwebdir(config, baseui=None):
return hgwebdir_mod.hgwebdir(config, baseui=baseui)