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wireproto: allow wire protocol commands to declare transport support Currently, wire protocol commands are exposed on all transports. Some wire protocol commands are only supported or sensical on some transports. In the future, new wire protocol commands may only be available on new transports and legacy wire protocol commands may not be available to newer transports. This commit introduces a mechanism to allow @wireprotocommand to declare transports for which they should not be available. The mechanism for determining if a wire protocol command is available for a given transport instance has been taught to take this knowledge into account. To help implement this feature, we add a dict to wireprototypes declaring all wire transports and their metadata. There's probably room to refactor the constants used to identify the wire protocols. But that can be in another commit. Differential Revision: https://phab.mercurial-scm.org/D2483
author Gregory Szorc <gregory.szorc@gmail.com>
date Fri, 02 Mar 2018 09:47:37 -0500
parents 3cd245945ef3
children 6e585bca962e
comparison
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36608:1151c731686e 36609:abc3b9801563
10 # Names of the SSH protocol implementations. 10 # Names of the SSH protocol implementations.
11 SSHV1 = 'ssh-v1' 11 SSHV1 = 'ssh-v1'
12 # This is advertised over the wire. Incremental the counter at the end 12 # This is advertised over the wire. Incremental the counter at the end
13 # to reflect BC breakages. 13 # to reflect BC breakages.
14 SSHV2 = 'exp-ssh-v2-0001' 14 SSHV2 = 'exp-ssh-v2-0001'
15
16 # All available wire protocol transports.
17 TRANSPORTS = {
18 SSHV1: {
19 'transport': 'ssh',
20 'version': 1,
21 },
22 SSHV2: {
23 'transport': 'ssh',
24 'version': 2,
25 },
26 'http-v1': {
27 'transport': 'http',
28 'version': 1,
29 }
30 }
15 31
16 class bytesresponse(object): 32 class bytesresponse(object):
17 """A wire protocol response consisting of raw bytes.""" 33 """A wire protocol response consisting of raw bytes."""
18 def __init__(self, data): 34 def __init__(self, data):
19 self.data = data 35 self.data = data