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#!/usr/bin/env python
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#
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# Copyright 2005-2007 by Intevation GmbH <intevation@intevation.de>
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#
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# Author(s):
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# Thomas Arendsen Hein <thomas@intevation.de>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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"""
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hg-ssh - a wrapper for ssh access to a limited set of mercurial repos
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To be used in ~/.ssh/authorized_keys with the "command" option, see sshd(8):
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command="hg-ssh path/to/repo1 /path/to/repo2 ~/repo3 ~user/repo4" ssh-dss ...
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(probably together with these other useful options:
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no-port-forwarding,no-X11-forwarding,no-agent-forwarding)
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This allows pull/push over ssh to to the repositories given as arguments.
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If all your repositories are subdirectories of a common directory, you can
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allow shorter paths with:
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command="cd path/to/my/repositories && hg-ssh repo1 subdir/repo2"
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You can use pattern matching of your normal shell, e.g.:
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command="cd repos && hg-ssh user/thomas/* projects/{mercurial,foo}"
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"""
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# enable importing on demand to reduce startup time
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from mercurial import demandimport; demandimport.enable()
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from mercurial import dispatch
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import sys, os
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cwd = os.getcwd()
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allowed_paths = [os.path.normpath(os.path.join(cwd, os.path.expanduser(path)))
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for path in sys.argv[1:]]
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orig_cmd = os.getenv('SSH_ORIGINAL_COMMAND', '?')
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if orig_cmd.startswith('hg -R ') and orig_cmd.endswith(' serve --stdio'):
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path = orig_cmd[6:-14]
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repo = os.path.normpath(os.path.join(cwd, os.path.expanduser(path)))
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if repo in allowed_paths:
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dispatch.dispatch(['-R', repo, 'serve', '--stdio'])
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else:
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sys.stderr.write("Illegal repository %r\n" % repo)
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sys.exit(-1)
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else:
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sys.stderr.write("Illegal command %r\n" % orig_cmd)
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sys.exit(-1)
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