Mercurial > hg
annotate tests/test-batching.py @ 40417:49c7b701fdc2 stable
phase: add an archived phase
This phase allows for hidden changesets in the "user space". It differs from
the "internal" phase which is intended for internal by-product only. There
have been discussions at the 4.8 sprint to use such phase to speedup cleanup
after history rewriting operation.
Shipping it in the same release as the 'internal-phase' groups the associated
`requires` entry. The important bit is to have support for this phase in the
earliest version of mercurial possible. Adding the UI to manipulate this new
phase later seems fine.
The current plan for archived usage and user interface are as follow. On a
repository with internal-phase on and evolution off:
* history rewriting command set rewritten changeset in the archived phase.
(This mean updating the cleanupnodes method).
* keep `hg unbundle .hg/strip-backup/X.hg` as a way to restore changeset for
now
(backup bundle need to contains phase data)
* [maybe] add a `hg strip --soft` advance flag
(a light way to expose the feature without getting in the way of a better
UI)
Mercurial 4.8 freeze is too close to get the above in by then.
We don't introduce a new repository `requirement` as we reuse the one
introduced with the 'archived' phase during the 4.8 cycle.
author | Boris Feld <boris.feld@octobus.net> |
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date | Wed, 17 Oct 2018 14:47:01 +0200 |
parents | 33a6eee08db2 |
children | b81ca9a3f4e4 |
rev | line source |
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1 # test-batching.py - tests for transparent command batching |
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2 # |
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3 # Copyright 2011 Peter Arrenbrecht <peter@arrenbrecht.ch> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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6 # GNU General Public License version 2 or any later version. |
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7 |
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8 from __future__ import absolute_import, print_function |
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9 |
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10 import contextlib |
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11 |
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12 from mercurial import ( |
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13 localrepo, |
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14 wireprotov1peer, |
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15 |
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16 ) |
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17 |
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18 # equivalent of repo.repository |
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19 class thing(object): |
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20 def hello(self): |
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21 return "Ready." |
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22 |
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23 # equivalent of localrepo.localrepository |
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24 class localthing(thing): |
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25 def foo(self, one, two=None): |
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26 if one: |
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27 return "%s and %s" % (one, two,) |
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28 return "Nope" |
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29 def bar(self, b, a): |
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30 return "%s und %s" % (b, a,) |
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31 def greet(self, name=None): |
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32 return "Hello, %s" % name |
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33 |
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34 @contextlib.contextmanager |
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35 def commandexecutor(self): |
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36 e = localrepo.localcommandexecutor(self) |
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37 try: |
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38 yield e |
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39 finally: |
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40 e.close() |
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41 |
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42 # usage of "thing" interface |
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43 def use(it): |
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44 |
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45 # Direct call to base method shared between client and server. |
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46 print(it.hello()) |
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47 |
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48 # Direct calls to proxied methods. They cause individual roundtrips. |
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49 print(it.foo("Un", two="Deux")) |
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50 print(it.bar("Eins", "Zwei")) |
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51 |
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52 # Batched call to a couple of proxied methods. |
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53 |
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54 with it.commandexecutor() as e: |
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55 ffoo = e.callcommand('foo', {'one': 'One', 'two': 'Two'}) |
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56 fbar = e.callcommand('bar', {'b': 'Eins', 'a': 'Zwei'}) |
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57 fbar2 = e.callcommand('bar', {'b': 'Uno', 'a': 'Due'}) |
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58 |
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59 print(ffoo.result()) |
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60 print(fbar.result()) |
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61 print(fbar2.result()) |
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62 |
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63 # local usage |
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64 mylocal = localthing() |
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65 print() |
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66 print("== Local") |
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67 use(mylocal) |
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68 |
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69 # demo remoting; mimicks what wireproto and HTTP/SSH do |
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70 |
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71 # shared |
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72 |
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73 def escapearg(plain): |
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74 return (plain |
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75 .replace(':', '::') |
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76 .replace(',', ':,') |
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77 .replace(';', ':;') |
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78 .replace('=', ':=')) |
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79 def unescapearg(escaped): |
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80 return (escaped |
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81 .replace(':=', '=') |
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82 .replace(':;', ';') |
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83 .replace(':,', ',') |
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84 .replace('::', ':')) |
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85 |
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86 # server side |
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87 |
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88 # equivalent of wireproto's global functions |
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89 class server(object): |
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90 def __init__(self, local): |
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91 self.local = local |
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92 def _call(self, name, args): |
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93 args = dict(arg.split('=', 1) for arg in args) |
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94 return getattr(self, name)(**args) |
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95 def perform(self, req): |
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96 print("REQ:", req) |
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97 name, args = req.split('?', 1) |
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98 args = args.split('&') |
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99 vals = dict(arg.split('=', 1) for arg in args) |
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100 res = getattr(self, name)(**vals) |
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101 print(" ->", res) |
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102 return res |
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103 def batch(self, cmds): |
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104 res = [] |
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105 for pair in cmds.split(';'): |
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106 name, args = pair.split(':', 1) |
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107 vals = {} |
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108 for a in args.split(','): |
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109 if a: |
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110 n, v = a.split('=') |
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111 vals[n] = unescapearg(v) |
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112 res.append(escapearg(getattr(self, name)(**vals))) |
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113 return ';'.join(res) |
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114 def foo(self, one, two): |
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115 return mangle(self.local.foo(unmangle(one), unmangle(two))) |
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116 def bar(self, b, a): |
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117 return mangle(self.local.bar(unmangle(b), unmangle(a))) |
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118 def greet(self, name): |
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119 return mangle(self.local.greet(unmangle(name))) |
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120 myserver = server(mylocal) |
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121 |
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122 # local side |
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123 |
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124 # equivalent of wireproto.encode/decodelist, that is, type-specific marshalling |
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125 # here we just transform the strings a bit to check we're properly en-/decoding |
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126 def mangle(s): |
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127 return ''.join(chr(ord(c) + 1) for c in s) |
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128 def unmangle(s): |
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129 return ''.join(chr(ord(c) - 1) for c in s) |
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130 |
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131 # equivalent of wireproto.wirerepository and something like http's wire format |
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132 class remotething(thing): |
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133 def __init__(self, server): |
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134 self.server = server |
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135 def _submitone(self, name, args): |
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136 req = name + '?' + '&'.join(['%s=%s' % (n, v) for n, v in args]) |
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137 return self.server.perform(req) |
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138 def _submitbatch(self, cmds): |
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139 req = [] |
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140 for name, args in cmds: |
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141 args = ','.join(n + '=' + escapearg(v) for n, v in args) |
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142 req.append(name + ':' + args) |
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143 req = ';'.join(req) |
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144 res = self._submitone('batch', [('cmds', req,)]) |
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145 for r in res.split(';'): |
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146 yield r |
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147 |
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148 @contextlib.contextmanager |
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149 def commandexecutor(self): |
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150 e = wireprotov1peer.peerexecutor(self) |
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151 try: |
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152 yield e |
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153 finally: |
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154 e.close() |
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155 |
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156 @wireprotov1peer.batchable |
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157 def foo(self, one, two=None): |
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158 encargs = [('one', mangle(one),), ('two', mangle(two),)] |
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159 encresref = wireprotov1peer.future() |
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160 yield encargs, encresref |
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161 yield unmangle(encresref.value) |
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162 |
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163 @wireprotov1peer.batchable |
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164 def bar(self, b, a): |
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165 encresref = wireprotov1peer.future() |
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166 yield [('b', mangle(b),), ('a', mangle(a),)], encresref |
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167 yield unmangle(encresref.value) |
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168 |
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169 # greet is coded directly. It therefore does not support batching. If it |
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170 # does appear in a batch, the batch is split around greet, and the call to |
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171 # greet is done in its own roundtrip. |
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172 def greet(self, name=None): |
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173 return unmangle(self._submitone('greet', [('name', mangle(name),)])) |
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174 |
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175 # demo remote usage |
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176 |
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177 myproxy = remotething(myserver) |
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178 print() |
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179 print("== Remote") |
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180 use(myproxy) |