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@@ -1,153 +1,140 b'' | |||
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1 | 1 | # peer.py - repository base classes for mercurial |
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2 | 2 | # |
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3 | 3 | # Copyright 2005, 2006 Matt Mackall <mpm@selenic.com> |
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4 | 4 | # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> |
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5 | 5 | # |
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6 | 6 | # This software may be used and distributed according to the terms of the |
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7 | 7 | # GNU General Public License version 2 or any later version. |
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8 | 8 | |
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9 | 9 | from __future__ import absolute_import |
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10 | 10 | |
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11 | 11 | from .i18n import _ |
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12 | 12 | from . import ( |
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13 | 13 | error, |
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14 | 14 | util, |
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15 | 15 | ) |
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16 | 16 | |
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17 | 17 | # abstract batching support |
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18 | 18 | |
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19 | 19 | class future(object): |
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20 | 20 | '''placeholder for a value to be set later''' |
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21 | 21 | def set(self, value): |
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22 | 22 | if util.safehasattr(self, 'value'): |
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23 | 23 | raise error.RepoError("future is already set") |
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24 | 24 | self.value = value |
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25 | 25 | |
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26 | 26 | class batcher(object): |
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27 | 27 | '''base class for batches of commands submittable in a single request |
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28 | 28 | |
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29 | 29 | All methods invoked on instances of this class are simply queued and |
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30 | 30 | return a a future for the result. Once you call submit(), all the queued |
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31 | 31 | calls are performed and the results set in their respective futures. |
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32 | 32 | ''' |
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33 | 33 | def __init__(self): |
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34 | 34 | self.calls = [] |
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35 | 35 | def __getattr__(self, name): |
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36 | 36 | def call(*args, **opts): |
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37 | 37 | resref = future() |
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38 | 38 | self.calls.append((name, args, opts, resref,)) |
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39 | 39 | return resref |
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40 | 40 | return call |
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41 | 41 | def submit(self): |
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42 | 42 | raise NotImplementedError() |
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43 | 43 | |
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44 | 44 | class iterbatcher(batcher): |
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45 | 45 | |
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46 | 46 | def submit(self): |
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47 | 47 | raise NotImplementedError() |
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48 | 48 | |
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49 | 49 | def results(self): |
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50 | 50 | raise NotImplementedError() |
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51 | 51 | |
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52 | class localbatch(batcher): | |
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53 | '''performs the queued calls directly''' | |
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54 | def __init__(self, local): | |
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55 | batcher.__init__(self) | |
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56 | self.local = local | |
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57 | def submit(self): | |
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58 | for name, args, opts, resref in self.calls: | |
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59 | resref.set(getattr(self.local, name)(*args, **opts)) | |
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60 | ||
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61 | 52 | class localiterbatcher(iterbatcher): |
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62 | 53 | def __init__(self, local): |
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63 | 54 | super(iterbatcher, self).__init__() |
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64 | 55 | self.local = local |
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65 | 56 | |
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66 | 57 | def submit(self): |
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67 | 58 | # submit for a local iter batcher is a noop |
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68 | 59 | pass |
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69 | 60 | |
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70 | 61 | def results(self): |
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71 | 62 | for name, args, opts, resref in self.calls: |
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72 | 63 | resref.set(getattr(self.local, name)(*args, **opts)) |
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73 | 64 | yield resref.value |
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74 | 65 | |
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75 | 66 | def batchable(f): |
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76 | 67 | '''annotation for batchable methods |
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77 | 68 | |
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78 | 69 | Such methods must implement a coroutine as follows: |
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79 | 70 | |
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80 | 71 | @batchable |
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81 | 72 | def sample(self, one, two=None): |
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82 | 73 | # Build list of encoded arguments suitable for your wire protocol: |
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83 | 74 | encargs = [('one', encode(one),), ('two', encode(two),)] |
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84 | 75 | # Create future for injection of encoded result: |
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85 | 76 | encresref = future() |
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86 | 77 | # Return encoded arguments and future: |
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87 | 78 | yield encargs, encresref |
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88 | 79 | # Assuming the future to be filled with the result from the batched |
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89 | 80 | # request now. Decode it: |
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90 | 81 | yield decode(encresref.value) |
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91 | 82 | |
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92 | 83 | The decorator returns a function which wraps this coroutine as a plain |
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93 | 84 | method, but adds the original method as an attribute called "batchable", |
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94 | 85 | which is used by remotebatch to split the call into separate encoding and |
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95 | 86 | decoding phases. |
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96 | 87 | ''' |
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97 | 88 | def plain(*args, **opts): |
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98 | 89 | batchable = f(*args, **opts) |
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99 | 90 | encargsorres, encresref = next(batchable) |
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100 | 91 | if not encresref: |
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101 | 92 | return encargsorres # a local result in this case |
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102 | 93 | self = args[0] |
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103 | 94 | encresref.set(self._submitone(f.func_name, encargsorres)) |
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104 | 95 | return next(batchable) |
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105 | 96 | setattr(plain, 'batchable', f) |
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106 | 97 | return plain |
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107 | 98 | |
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108 | 99 | class peerrepository(object): |
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109 | ||
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110 | def batch(self): | |
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111 | return localbatch(self) | |
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112 | ||
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113 | 100 | def iterbatch(self): |
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114 | 101 | """Batch requests but allow iterating over the results. |
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115 | 102 | |
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116 | 103 | This is to allow interleaving responses with things like |
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117 | 104 | progress updates for clients. |
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118 | 105 | """ |
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119 | 106 | return localiterbatcher(self) |
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120 | 107 | |
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121 | 108 | def capable(self, name): |
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122 | 109 | '''tell whether repo supports named capability. |
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123 | 110 | return False if not supported. |
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124 | 111 | if boolean capability, return True. |
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125 | 112 | if string capability, return string.''' |
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126 | 113 | caps = self._capabilities() |
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127 | 114 | if name in caps: |
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128 | 115 | return True |
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129 | 116 | name_eq = name + '=' |
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130 | 117 | for cap in caps: |
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131 | 118 | if cap.startswith(name_eq): |
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132 | 119 | return cap[len(name_eq):] |
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133 | 120 | return False |
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134 | 121 | |
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135 | 122 | def requirecap(self, name, purpose): |
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136 | 123 | '''raise an exception if the given capability is not present''' |
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137 | 124 | if not self.capable(name): |
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138 | 125 | raise error.CapabilityError( |
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139 | 126 | _('cannot %s; remote repository does not ' |
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140 | 127 | 'support the %r capability') % (purpose, name)) |
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141 | 128 | |
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142 | 129 | def local(self): |
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143 | 130 | '''return peer as a localrepo, or None''' |
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144 | 131 | return None |
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145 | 132 | |
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146 | 133 | def peer(self): |
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147 | 134 | return self |
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148 | 135 | |
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149 | 136 | def canpush(self): |
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150 | 137 | return True |
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151 | 138 | |
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152 | 139 | def close(self): |
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153 | 140 | pass |
@@ -1,1088 +1,1050 b'' | |||
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1 | 1 | # wireproto.py - generic wire protocol support functions |
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2 | 2 | # |
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3 | 3 | # Copyright 2005-2010 Matt Mackall <mpm@selenic.com> |
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4 | 4 | # |
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5 | 5 | # This software may be used and distributed according to the terms of the |
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6 | 6 | # GNU General Public License version 2 or any later version. |
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7 | 7 | |
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8 | 8 | from __future__ import absolute_import |
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9 | 9 | |
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10 | 10 | import hashlib |
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11 | import itertools | |
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12 | 11 | import os |
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13 | 12 | import tempfile |
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14 | 13 | |
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15 | 14 | from .i18n import _ |
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16 | 15 | from .node import ( |
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17 | 16 | bin, |
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18 | 17 | hex, |
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19 | 18 | nullid, |
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20 | 19 | ) |
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21 | 20 | |
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22 | 21 | from . import ( |
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23 | 22 | bundle2, |
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24 | 23 | changegroup as changegroupmod, |
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25 | 24 | encoding, |
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26 | 25 | error, |
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27 | 26 | exchange, |
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28 | 27 | peer, |
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29 | 28 | pushkey as pushkeymod, |
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30 | 29 | pycompat, |
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31 | 30 | streamclone, |
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32 | 31 | util, |
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33 | 32 | ) |
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34 | 33 | |
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35 | 34 | urlerr = util.urlerr |
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36 | 35 | urlreq = util.urlreq |
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37 | 36 | |
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38 | 37 | bundle2requiredmain = _('incompatible Mercurial client; bundle2 required') |
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39 | 38 | bundle2requiredhint = _('see https://www.mercurial-scm.org/wiki/' |
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40 | 39 | 'IncompatibleClient') |
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41 | 40 | bundle2required = '%s\n(%s)\n' % (bundle2requiredmain, bundle2requiredhint) |
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42 | 41 | |
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43 | 42 | class abstractserverproto(object): |
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44 | 43 | """abstract class that summarizes the protocol API |
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45 | 44 | |
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46 | 45 | Used as reference and documentation. |
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47 | 46 | """ |
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48 | 47 | |
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49 | 48 | def getargs(self, args): |
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50 | 49 | """return the value for arguments in <args> |
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51 | 50 | |
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52 | 51 | returns a list of values (same order as <args>)""" |
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53 | 52 | raise NotImplementedError() |
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54 | 53 | |
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55 | 54 | def getfile(self, fp): |
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56 | 55 | """write the whole content of a file into a file like object |
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57 | 56 | |
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58 | 57 | The file is in the form:: |
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59 | 58 | |
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60 | 59 | (<chunk-size>\n<chunk>)+0\n |
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61 | 60 | |
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62 | 61 | chunk size is the ascii version of the int. |
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63 | 62 | """ |
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64 | 63 | raise NotImplementedError() |
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65 | 64 | |
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66 | 65 | def redirect(self): |
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67 | 66 | """may setup interception for stdout and stderr |
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68 | 67 | |
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69 | 68 | See also the `restore` method.""" |
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70 | 69 | raise NotImplementedError() |
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71 | 70 | |
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72 | 71 | # If the `redirect` function does install interception, the `restore` |
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73 | 72 | # function MUST be defined. If interception is not used, this function |
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74 | 73 | # MUST NOT be defined. |
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75 | 74 | # |
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76 | 75 | # left commented here on purpose |
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77 | 76 | # |
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78 | 77 | #def restore(self): |
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79 | 78 | # """reinstall previous stdout and stderr and return intercepted stdout |
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80 | 79 | # """ |
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81 | 80 | # raise NotImplementedError() |
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82 | 81 | |
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83 | class remotebatch(peer.batcher): | |
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84 | '''batches the queued calls; uses as few roundtrips as possible''' | |
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85 | def __init__(self, remote): | |
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86 | '''remote must support _submitbatch(encbatch) and | |
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87 | _submitone(op, encargs)''' | |
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88 | peer.batcher.__init__(self) | |
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89 | self.remote = remote | |
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90 | def submit(self): | |
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91 | req, rsp = [], [] | |
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92 | for name, args, opts, resref in self.calls: | |
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93 | mtd = getattr(self.remote, name) | |
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94 | batchablefn = getattr(mtd, 'batchable', None) | |
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95 | if batchablefn is not None: | |
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96 | batchable = batchablefn(mtd.im_self, *args, **opts) | |
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97 | encargsorres, encresref = next(batchable) | |
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98 | assert encresref | |
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99 | req.append((name, encargsorres,)) | |
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100 | rsp.append((batchable, encresref, resref,)) | |
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101 | else: | |
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102 | if req: | |
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103 | self._submitreq(req, rsp) | |
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104 | req, rsp = [], [] | |
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105 | resref.set(mtd(*args, **opts)) | |
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106 | if req: | |
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107 | self._submitreq(req, rsp) | |
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108 | def _submitreq(self, req, rsp): | |
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109 | encresults = self.remote._submitbatch(req) | |
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110 | for encres, r in zip(encresults, rsp): | |
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111 | batchable, encresref, resref = r | |
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112 | encresref.set(encres) | |
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113 | resref.set(next(batchable)) | |
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114 | ||
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115 | 82 | class remoteiterbatcher(peer.iterbatcher): |
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116 | 83 | def __init__(self, remote): |
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117 | 84 | super(remoteiterbatcher, self).__init__() |
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118 | 85 | self._remote = remote |
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119 | 86 | |
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120 | 87 | def __getattr__(self, name): |
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121 | 88 | # Validate this method is batchable, since submit() only supports |
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122 | 89 | # batchable methods. |
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123 | 90 | fn = getattr(self._remote, name) |
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124 | 91 | if not getattr(fn, 'batchable', None): |
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125 | 92 | raise error.ProgrammingError('Attempted to batch a non-batchable ' |
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126 | 93 | 'call to %r' % name) |
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127 | 94 | |
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128 | 95 | return super(remoteiterbatcher, self).__getattr__(name) |
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129 | 96 | |
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130 | 97 | def submit(self): |
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131 | 98 | """Break the batch request into many patch calls and pipeline them. |
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132 | 99 | |
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133 | 100 | This is mostly valuable over http where request sizes can be |
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134 | 101 | limited, but can be used in other places as well. |
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135 | 102 | """ |
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136 | 103 | # 2-tuple of (command, arguments) that represents what will be |
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137 | 104 | # sent over the wire. |
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138 | 105 | requests = [] |
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139 | 106 | |
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140 | 107 | # 4-tuple of (command, final future, @batchable generator, remote |
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141 | 108 | # future). |
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142 | 109 | results = [] |
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143 | 110 | |
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144 | 111 | for command, args, opts, finalfuture in self.calls: |
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145 | 112 | mtd = getattr(self._remote, command) |
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146 | 113 | batchable = mtd.batchable(mtd.im_self, *args, **opts) |
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147 | 114 | |
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148 | 115 | commandargs, fremote = next(batchable) |
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149 | 116 | assert fremote |
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150 | 117 | requests.append((command, commandargs)) |
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151 | 118 | results.append((command, finalfuture, batchable, fremote)) |
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152 | 119 | |
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153 | 120 | if requests: |
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154 | 121 | self._resultiter = self._remote._submitbatch(requests) |
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155 | 122 | |
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156 | 123 | self._results = results |
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157 | 124 | |
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158 | 125 | def results(self): |
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159 | 126 | for command, finalfuture, batchable, remotefuture in self._results: |
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160 | 127 | # Get the raw result, set it in the remote future, feed it |
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161 | 128 | # back into the @batchable generator so it can be decoded, and |
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162 | 129 | # set the result on the final future to this value. |
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163 | 130 | remoteresult = next(self._resultiter) |
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164 | 131 | remotefuture.set(remoteresult) |
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165 | 132 | finalfuture.set(next(batchable)) |
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166 | 133 | |
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167 | 134 | # Verify our @batchable generators only emit 2 values. |
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168 | 135 | try: |
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169 | 136 | next(batchable) |
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170 | 137 | except StopIteration: |
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171 | 138 | pass |
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172 | 139 | else: |
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173 | 140 | raise error.ProgrammingError('%s @batchable generator emitted ' |
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174 | 141 | 'unexpected value count' % command) |
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175 | 142 | |
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176 | 143 | yield finalfuture.value |
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177 | 144 | |
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178 | 145 | # Forward a couple of names from peer to make wireproto interactions |
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179 | 146 | # slightly more sensible. |
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180 | 147 | batchable = peer.batchable |
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181 | 148 | future = peer.future |
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182 | 149 | |
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183 | 150 | # list of nodes encoding / decoding |
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184 | 151 | |
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185 | 152 | def decodelist(l, sep=' '): |
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186 | 153 | if l: |
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187 | 154 | return map(bin, l.split(sep)) |
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188 | 155 | return [] |
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189 | 156 | |
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190 | 157 | def encodelist(l, sep=' '): |
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191 | 158 | try: |
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192 | 159 | return sep.join(map(hex, l)) |
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193 | 160 | except TypeError: |
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194 | 161 | raise |
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195 | 162 | |
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196 | 163 | # batched call argument encoding |
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197 | 164 | |
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198 | 165 | def escapearg(plain): |
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199 | 166 | return (plain |
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200 | 167 | .replace(':', ':c') |
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201 | 168 | .replace(',', ':o') |
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202 | 169 | .replace(';', ':s') |
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203 | 170 | .replace('=', ':e')) |
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204 | 171 | |
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205 | 172 | def unescapearg(escaped): |
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206 | 173 | return (escaped |
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207 | 174 | .replace(':e', '=') |
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208 | 175 | .replace(':s', ';') |
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209 | 176 | .replace(':o', ',') |
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210 | 177 | .replace(':c', ':')) |
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211 | 178 | |
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212 | 179 | def encodebatchcmds(req): |
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213 | 180 | """Return a ``cmds`` argument value for the ``batch`` command.""" |
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214 | 181 | cmds = [] |
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215 | 182 | for op, argsdict in req: |
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216 | 183 | # Old servers didn't properly unescape argument names. So prevent |
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217 | 184 | # the sending of argument names that may not be decoded properly by |
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218 | 185 | # servers. |
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219 | 186 | assert all(escapearg(k) == k for k in argsdict) |
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220 | 187 | |
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221 | 188 | args = ','.join('%s=%s' % (escapearg(k), escapearg(v)) |
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222 | 189 | for k, v in argsdict.iteritems()) |
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223 | 190 | cmds.append('%s %s' % (op, args)) |
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224 | 191 | |
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225 | 192 | return ';'.join(cmds) |
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226 | 193 | |
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227 | 194 | # mapping of options accepted by getbundle and their types |
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228 | 195 | # |
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229 | 196 | # Meant to be extended by extensions. It is extensions responsibility to ensure |
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230 | 197 | # such options are properly processed in exchange.getbundle. |
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231 | 198 | # |
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232 | 199 | # supported types are: |
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233 | 200 | # |
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234 | 201 | # :nodes: list of binary nodes |
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235 | 202 | # :csv: list of comma-separated values |
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236 | 203 | # :scsv: list of comma-separated values return as set |
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237 | 204 | # :plain: string with no transformation needed. |
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238 | 205 | gboptsmap = {'heads': 'nodes', |
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239 | 206 | 'common': 'nodes', |
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240 | 207 | 'obsmarkers': 'boolean', |
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241 | 208 | 'bundlecaps': 'scsv', |
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242 | 209 | 'listkeys': 'csv', |
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243 | 210 | 'cg': 'boolean', |
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244 | 211 | 'cbattempted': 'boolean'} |
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245 | 212 | |
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246 | 213 | # client side |
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247 | 214 | |
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248 | 215 | class wirepeer(peer.peerrepository): |
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249 | 216 | """Client-side interface for communicating with a peer repository. |
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250 | 217 | |
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251 | 218 | Methods commonly call wire protocol commands of the same name. |
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252 | 219 | |
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253 | 220 | See also httppeer.py and sshpeer.py for protocol-specific |
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254 | 221 | implementations of this interface. |
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255 | 222 | """ |
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256 | def batch(self): | |
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257 | if self.capable('batch'): | |
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258 | return remotebatch(self) | |
|
259 | else: | |
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260 | return peer.localbatch(self) | |
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261 | 223 | def _submitbatch(self, req): |
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262 | 224 | """run batch request <req> on the server |
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263 | 225 | |
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264 | 226 | Returns an iterator of the raw responses from the server. |
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265 | 227 | """ |
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266 | 228 | rsp = self._callstream("batch", cmds=encodebatchcmds(req)) |
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267 | 229 | chunk = rsp.read(1024) |
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268 | 230 | work = [chunk] |
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269 | 231 | while chunk: |
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270 | 232 | while ';' not in chunk and chunk: |
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271 | 233 | chunk = rsp.read(1024) |
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272 | 234 | work.append(chunk) |
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273 | 235 | merged = ''.join(work) |
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274 | 236 | while ';' in merged: |
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275 | 237 | one, merged = merged.split(';', 1) |
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276 | 238 | yield unescapearg(one) |
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277 | 239 | chunk = rsp.read(1024) |
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278 | 240 | work = [merged, chunk] |
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279 | 241 | yield unescapearg(''.join(work)) |
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280 | 242 | |
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281 | 243 | def _submitone(self, op, args): |
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282 | 244 | return self._call(op, **args) |
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283 | 245 | |
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284 | 246 | def iterbatch(self): |
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285 | 247 | return remoteiterbatcher(self) |
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286 | 248 | |
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287 | 249 | @batchable |
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288 | 250 | def lookup(self, key): |
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289 | 251 | self.requirecap('lookup', _('look up remote revision')) |
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290 | 252 | f = future() |
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291 | 253 | yield {'key': encoding.fromlocal(key)}, f |
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292 | 254 | d = f.value |
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293 | 255 | success, data = d[:-1].split(" ", 1) |
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294 | 256 | if int(success): |
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295 | 257 | yield bin(data) |
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296 | 258 | self._abort(error.RepoError(data)) |
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297 | 259 | |
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298 | 260 | @batchable |
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299 | 261 | def heads(self): |
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300 | 262 | f = future() |
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301 | 263 | yield {}, f |
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302 | 264 | d = f.value |
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303 | 265 | try: |
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304 | 266 | yield decodelist(d[:-1]) |
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305 | 267 | except ValueError: |
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306 | 268 | self._abort(error.ResponseError(_("unexpected response:"), d)) |
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307 | 269 | |
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308 | 270 | @batchable |
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309 | 271 | def known(self, nodes): |
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310 | 272 | f = future() |
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311 | 273 | yield {'nodes': encodelist(nodes)}, f |
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312 | 274 | d = f.value |
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313 | 275 | try: |
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314 | 276 | yield [bool(int(b)) for b in d] |
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315 | 277 | except ValueError: |
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316 | 278 | self._abort(error.ResponseError(_("unexpected response:"), d)) |
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317 | 279 | |
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318 | 280 | @batchable |
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319 | 281 | def branchmap(self): |
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320 | 282 | f = future() |
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321 | 283 | yield {}, f |
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322 | 284 | d = f.value |
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323 | 285 | try: |
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324 | 286 | branchmap = {} |
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325 | 287 | for branchpart in d.splitlines(): |
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326 | 288 | branchname, branchheads = branchpart.split(' ', 1) |
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327 | 289 | branchname = encoding.tolocal(urlreq.unquote(branchname)) |
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328 | 290 | branchheads = decodelist(branchheads) |
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329 | 291 | branchmap[branchname] = branchheads |
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330 | 292 | yield branchmap |
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331 | 293 | except TypeError: |
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332 | 294 | self._abort(error.ResponseError(_("unexpected response:"), d)) |
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333 | 295 | |
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334 | 296 | def branches(self, nodes): |
|
335 | 297 | n = encodelist(nodes) |
|
336 | 298 | d = self._call("branches", nodes=n) |
|
337 | 299 | try: |
|
338 | 300 | br = [tuple(decodelist(b)) for b in d.splitlines()] |
|
339 | 301 | return br |
|
340 | 302 | except ValueError: |
|
341 | 303 | self._abort(error.ResponseError(_("unexpected response:"), d)) |
|
342 | 304 | |
|
343 | 305 | def between(self, pairs): |
|
344 | 306 | batch = 8 # avoid giant requests |
|
345 | 307 | r = [] |
|
346 | 308 | for i in xrange(0, len(pairs), batch): |
|
347 | 309 | n = " ".join([encodelist(p, '-') for p in pairs[i:i + batch]]) |
|
348 | 310 | d = self._call("between", pairs=n) |
|
349 | 311 | try: |
|
350 | 312 | r.extend(l and decodelist(l) or [] for l in d.splitlines()) |
|
351 | 313 | except ValueError: |
|
352 | 314 | self._abort(error.ResponseError(_("unexpected response:"), d)) |
|
353 | 315 | return r |
|
354 | 316 | |
|
355 | 317 | @batchable |
|
356 | 318 | def pushkey(self, namespace, key, old, new): |
|
357 | 319 | if not self.capable('pushkey'): |
|
358 | 320 | yield False, None |
|
359 | 321 | f = future() |
|
360 | 322 | self.ui.debug('preparing pushkey for "%s:%s"\n' % (namespace, key)) |
|
361 | 323 | yield {'namespace': encoding.fromlocal(namespace), |
|
362 | 324 | 'key': encoding.fromlocal(key), |
|
363 | 325 | 'old': encoding.fromlocal(old), |
|
364 | 326 | 'new': encoding.fromlocal(new)}, f |
|
365 | 327 | d = f.value |
|
366 | 328 | d, output = d.split('\n', 1) |
|
367 | 329 | try: |
|
368 | 330 | d = bool(int(d)) |
|
369 | 331 | except ValueError: |
|
370 | 332 | raise error.ResponseError( |
|
371 | 333 | _('push failed (unexpected response):'), d) |
|
372 | 334 | for l in output.splitlines(True): |
|
373 | 335 | self.ui.status(_('remote: '), l) |
|
374 | 336 | yield d |
|
375 | 337 | |
|
376 | 338 | @batchable |
|
377 | 339 | def listkeys(self, namespace): |
|
378 | 340 | if not self.capable('pushkey'): |
|
379 | 341 | yield {}, None |
|
380 | 342 | f = future() |
|
381 | 343 | self.ui.debug('preparing listkeys for "%s"\n' % namespace) |
|
382 | 344 | yield {'namespace': encoding.fromlocal(namespace)}, f |
|
383 | 345 | d = f.value |
|
384 | 346 | self.ui.debug('received listkey for "%s": %i bytes\n' |
|
385 | 347 | % (namespace, len(d))) |
|
386 | 348 | yield pushkeymod.decodekeys(d) |
|
387 | 349 | |
|
388 | 350 | def stream_out(self): |
|
389 | 351 | return self._callstream('stream_out') |
|
390 | 352 | |
|
391 | 353 | def changegroup(self, nodes, kind): |
|
392 | 354 | n = encodelist(nodes) |
|
393 | 355 | f = self._callcompressable("changegroup", roots=n) |
|
394 | 356 | return changegroupmod.cg1unpacker(f, 'UN') |
|
395 | 357 | |
|
396 | 358 | def changegroupsubset(self, bases, heads, kind): |
|
397 | 359 | self.requirecap('changegroupsubset', _('look up remote changes')) |
|
398 | 360 | bases = encodelist(bases) |
|
399 | 361 | heads = encodelist(heads) |
|
400 | 362 | f = self._callcompressable("changegroupsubset", |
|
401 | 363 | bases=bases, heads=heads) |
|
402 | 364 | return changegroupmod.cg1unpacker(f, 'UN') |
|
403 | 365 | |
|
404 | 366 | def getbundle(self, source, **kwargs): |
|
405 | 367 | self.requirecap('getbundle', _('look up remote changes')) |
|
406 | 368 | opts = {} |
|
407 | 369 | bundlecaps = kwargs.get('bundlecaps') |
|
408 | 370 | if bundlecaps is not None: |
|
409 | 371 | kwargs['bundlecaps'] = sorted(bundlecaps) |
|
410 | 372 | else: |
|
411 | 373 | bundlecaps = () # kwargs could have it to None |
|
412 | 374 | for key, value in kwargs.iteritems(): |
|
413 | 375 | if value is None: |
|
414 | 376 | continue |
|
415 | 377 | keytype = gboptsmap.get(key) |
|
416 | 378 | if keytype is None: |
|
417 | 379 | assert False, 'unexpected' |
|
418 | 380 | elif keytype == 'nodes': |
|
419 | 381 | value = encodelist(value) |
|
420 | 382 | elif keytype in ('csv', 'scsv'): |
|
421 | 383 | value = ','.join(value) |
|
422 | 384 | elif keytype == 'boolean': |
|
423 | 385 | value = '%i' % bool(value) |
|
424 | 386 | elif keytype != 'plain': |
|
425 | 387 | raise KeyError('unknown getbundle option type %s' |
|
426 | 388 | % keytype) |
|
427 | 389 | opts[key] = value |
|
428 | 390 | f = self._callcompressable("getbundle", **opts) |
|
429 | 391 | if any((cap.startswith('HG2') for cap in bundlecaps)): |
|
430 | 392 | return bundle2.getunbundler(self.ui, f) |
|
431 | 393 | else: |
|
432 | 394 | return changegroupmod.cg1unpacker(f, 'UN') |
|
433 | 395 | |
|
434 | 396 | def unbundle(self, cg, heads, url): |
|
435 | 397 | '''Send cg (a readable file-like object representing the |
|
436 | 398 | changegroup to push, typically a chunkbuffer object) to the |
|
437 | 399 | remote server as a bundle. |
|
438 | 400 | |
|
439 | 401 | When pushing a bundle10 stream, return an integer indicating the |
|
440 | 402 | result of the push (see changegroup.apply()). |
|
441 | 403 | |
|
442 | 404 | When pushing a bundle20 stream, return a bundle20 stream. |
|
443 | 405 | |
|
444 | 406 | `url` is the url the client thinks it's pushing to, which is |
|
445 | 407 | visible to hooks. |
|
446 | 408 | ''' |
|
447 | 409 | |
|
448 | 410 | if heads != ['force'] and self.capable('unbundlehash'): |
|
449 | 411 | heads = encodelist(['hashed', |
|
450 | 412 | hashlib.sha1(''.join(sorted(heads))).digest()]) |
|
451 | 413 | else: |
|
452 | 414 | heads = encodelist(heads) |
|
453 | 415 | |
|
454 | 416 | if util.safehasattr(cg, 'deltaheader'): |
|
455 | 417 | # this a bundle10, do the old style call sequence |
|
456 | 418 | ret, output = self._callpush("unbundle", cg, heads=heads) |
|
457 | 419 | if ret == "": |
|
458 | 420 | raise error.ResponseError( |
|
459 | 421 | _('push failed:'), output) |
|
460 | 422 | try: |
|
461 | 423 | ret = int(ret) |
|
462 | 424 | except ValueError: |
|
463 | 425 | raise error.ResponseError( |
|
464 | 426 | _('push failed (unexpected response):'), ret) |
|
465 | 427 | |
|
466 | 428 | for l in output.splitlines(True): |
|
467 | 429 | self.ui.status(_('remote: '), l) |
|
468 | 430 | else: |
|
469 | 431 | # bundle2 push. Send a stream, fetch a stream. |
|
470 | 432 | stream = self._calltwowaystream('unbundle', cg, heads=heads) |
|
471 | 433 | ret = bundle2.getunbundler(self.ui, stream) |
|
472 | 434 | return ret |
|
473 | 435 | |
|
474 | 436 | def debugwireargs(self, one, two, three=None, four=None, five=None): |
|
475 | 437 | # don't pass optional arguments left at their default value |
|
476 | 438 | opts = {} |
|
477 | 439 | if three is not None: |
|
478 | 440 | opts['three'] = three |
|
479 | 441 | if four is not None: |
|
480 | 442 | opts['four'] = four |
|
481 | 443 | return self._call('debugwireargs', one=one, two=two, **opts) |
|
482 | 444 | |
|
483 | 445 | def _call(self, cmd, **args): |
|
484 | 446 | """execute <cmd> on the server |
|
485 | 447 | |
|
486 | 448 | The command is expected to return a simple string. |
|
487 | 449 | |
|
488 | 450 | returns the server reply as a string.""" |
|
489 | 451 | raise NotImplementedError() |
|
490 | 452 | |
|
491 | 453 | def _callstream(self, cmd, **args): |
|
492 | 454 | """execute <cmd> on the server |
|
493 | 455 | |
|
494 | 456 | The command is expected to return a stream. Note that if the |
|
495 | 457 | command doesn't return a stream, _callstream behaves |
|
496 | 458 | differently for ssh and http peers. |
|
497 | 459 | |
|
498 | 460 | returns the server reply as a file like object. |
|
499 | 461 | """ |
|
500 | 462 | raise NotImplementedError() |
|
501 | 463 | |
|
502 | 464 | def _callcompressable(self, cmd, **args): |
|
503 | 465 | """execute <cmd> on the server |
|
504 | 466 | |
|
505 | 467 | The command is expected to return a stream. |
|
506 | 468 | |
|
507 | 469 | The stream may have been compressed in some implementations. This |
|
508 | 470 | function takes care of the decompression. This is the only difference |
|
509 | 471 | with _callstream. |
|
510 | 472 | |
|
511 | 473 | returns the server reply as a file like object. |
|
512 | 474 | """ |
|
513 | 475 | raise NotImplementedError() |
|
514 | 476 | |
|
515 | 477 | def _callpush(self, cmd, fp, **args): |
|
516 | 478 | """execute a <cmd> on server |
|
517 | 479 | |
|
518 | 480 | The command is expected to be related to a push. Push has a special |
|
519 | 481 | return method. |
|
520 | 482 | |
|
521 | 483 | returns the server reply as a (ret, output) tuple. ret is either |
|
522 | 484 | empty (error) or a stringified int. |
|
523 | 485 | """ |
|
524 | 486 | raise NotImplementedError() |
|
525 | 487 | |
|
526 | 488 | def _calltwowaystream(self, cmd, fp, **args): |
|
527 | 489 | """execute <cmd> on server |
|
528 | 490 | |
|
529 | 491 | The command will send a stream to the server and get a stream in reply. |
|
530 | 492 | """ |
|
531 | 493 | raise NotImplementedError() |
|
532 | 494 | |
|
533 | 495 | def _abort(self, exception): |
|
534 | 496 | """clearly abort the wire protocol connection and raise the exception |
|
535 | 497 | """ |
|
536 | 498 | raise NotImplementedError() |
|
537 | 499 | |
|
538 | 500 | # server side |
|
539 | 501 | |
|
540 | 502 | # wire protocol command can either return a string or one of these classes. |
|
541 | 503 | class streamres(object): |
|
542 | 504 | """wireproto reply: binary stream |
|
543 | 505 | |
|
544 | 506 | The call was successful and the result is a stream. |
|
545 | 507 | |
|
546 | 508 | Accepts either a generator or an object with a ``read(size)`` method. |
|
547 | 509 | |
|
548 | 510 | ``v1compressible`` indicates whether this data can be compressed to |
|
549 | 511 | "version 1" clients (technically: HTTP peers using |
|
550 | 512 | application/mercurial-0.1 media type). This flag should NOT be used on |
|
551 | 513 | new commands because new clients should support a more modern compression |
|
552 | 514 | mechanism. |
|
553 | 515 | """ |
|
554 | 516 | def __init__(self, gen=None, reader=None, v1compressible=False): |
|
555 | 517 | self.gen = gen |
|
556 | 518 | self.reader = reader |
|
557 | 519 | self.v1compressible = v1compressible |
|
558 | 520 | |
|
559 | 521 | class pushres(object): |
|
560 | 522 | """wireproto reply: success with simple integer return |
|
561 | 523 | |
|
562 | 524 | The call was successful and returned an integer contained in `self.res`. |
|
563 | 525 | """ |
|
564 | 526 | def __init__(self, res): |
|
565 | 527 | self.res = res |
|
566 | 528 | |
|
567 | 529 | class pusherr(object): |
|
568 | 530 | """wireproto reply: failure |
|
569 | 531 | |
|
570 | 532 | The call failed. The `self.res` attribute contains the error message. |
|
571 | 533 | """ |
|
572 | 534 | def __init__(self, res): |
|
573 | 535 | self.res = res |
|
574 | 536 | |
|
575 | 537 | class ooberror(object): |
|
576 | 538 | """wireproto reply: failure of a batch of operation |
|
577 | 539 | |
|
578 | 540 | Something failed during a batch call. The error message is stored in |
|
579 | 541 | `self.message`. |
|
580 | 542 | """ |
|
581 | 543 | def __init__(self, message): |
|
582 | 544 | self.message = message |
|
583 | 545 | |
|
584 | 546 | def getdispatchrepo(repo, proto, command): |
|
585 | 547 | """Obtain the repo used for processing wire protocol commands. |
|
586 | 548 | |
|
587 | 549 | The intent of this function is to serve as a monkeypatch point for |
|
588 | 550 | extensions that need commands to operate on different repo views under |
|
589 | 551 | specialized circumstances. |
|
590 | 552 | """ |
|
591 | 553 | return repo.filtered('served') |
|
592 | 554 | |
|
593 | 555 | def dispatch(repo, proto, command): |
|
594 | 556 | repo = getdispatchrepo(repo, proto, command) |
|
595 | 557 | func, spec = commands[command] |
|
596 | 558 | args = proto.getargs(spec) |
|
597 | 559 | return func(repo, proto, *args) |
|
598 | 560 | |
|
599 | 561 | def options(cmd, keys, others): |
|
600 | 562 | opts = {} |
|
601 | 563 | for k in keys: |
|
602 | 564 | if k in others: |
|
603 | 565 | opts[k] = others[k] |
|
604 | 566 | del others[k] |
|
605 | 567 | if others: |
|
606 | 568 | util.stderr.write("warning: %s ignored unexpected arguments %s\n" |
|
607 | 569 | % (cmd, ",".join(others))) |
|
608 | 570 | return opts |
|
609 | 571 | |
|
610 | 572 | def bundle1allowed(repo, action): |
|
611 | 573 | """Whether a bundle1 operation is allowed from the server. |
|
612 | 574 | |
|
613 | 575 | Priority is: |
|
614 | 576 | |
|
615 | 577 | 1. server.bundle1gd.<action> (if generaldelta active) |
|
616 | 578 | 2. server.bundle1.<action> |
|
617 | 579 | 3. server.bundle1gd (if generaldelta active) |
|
618 | 580 | 4. server.bundle1 |
|
619 | 581 | """ |
|
620 | 582 | ui = repo.ui |
|
621 | 583 | gd = 'generaldelta' in repo.requirements |
|
622 | 584 | |
|
623 | 585 | if gd: |
|
624 | 586 | v = ui.configbool('server', 'bundle1gd.%s' % action, None) |
|
625 | 587 | if v is not None: |
|
626 | 588 | return v |
|
627 | 589 | |
|
628 | 590 | v = ui.configbool('server', 'bundle1.%s' % action, None) |
|
629 | 591 | if v is not None: |
|
630 | 592 | return v |
|
631 | 593 | |
|
632 | 594 | if gd: |
|
633 | 595 | v = ui.configbool('server', 'bundle1gd') |
|
634 | 596 | if v is not None: |
|
635 | 597 | return v |
|
636 | 598 | |
|
637 | 599 | return ui.configbool('server', 'bundle1') |
|
638 | 600 | |
|
639 | 601 | def supportedcompengines(ui, proto, role): |
|
640 | 602 | """Obtain the list of supported compression engines for a request.""" |
|
641 | 603 | assert role in (util.CLIENTROLE, util.SERVERROLE) |
|
642 | 604 | |
|
643 | 605 | compengines = util.compengines.supportedwireengines(role) |
|
644 | 606 | |
|
645 | 607 | # Allow config to override default list and ordering. |
|
646 | 608 | if role == util.SERVERROLE: |
|
647 | 609 | configengines = ui.configlist('server', 'compressionengines') |
|
648 | 610 | config = 'server.compressionengines' |
|
649 | 611 | else: |
|
650 | 612 | # This is currently implemented mainly to facilitate testing. In most |
|
651 | 613 | # cases, the server should be in charge of choosing a compression engine |
|
652 | 614 | # because a server has the most to lose from a sub-optimal choice. (e.g. |
|
653 | 615 | # CPU DoS due to an expensive engine or a network DoS due to poor |
|
654 | 616 | # compression ratio). |
|
655 | 617 | configengines = ui.configlist('experimental', |
|
656 | 618 | 'clientcompressionengines') |
|
657 | 619 | config = 'experimental.clientcompressionengines' |
|
658 | 620 | |
|
659 | 621 | # No explicit config. Filter out the ones that aren't supposed to be |
|
660 | 622 | # advertised and return default ordering. |
|
661 | 623 | if not configengines: |
|
662 | 624 | attr = 'serverpriority' if role == util.SERVERROLE else 'clientpriority' |
|
663 | 625 | return [e for e in compengines |
|
664 | 626 | if getattr(e.wireprotosupport(), attr) > 0] |
|
665 | 627 | |
|
666 | 628 | # If compression engines are listed in the config, assume there is a good |
|
667 | 629 | # reason for it (like server operators wanting to achieve specific |
|
668 | 630 | # performance characteristics). So fail fast if the config references |
|
669 | 631 | # unusable compression engines. |
|
670 | 632 | validnames = set(e.name() for e in compengines) |
|
671 | 633 | invalidnames = set(e for e in configengines if e not in validnames) |
|
672 | 634 | if invalidnames: |
|
673 | 635 | raise error.Abort(_('invalid compression engine defined in %s: %s') % |
|
674 | 636 | (config, ', '.join(sorted(invalidnames)))) |
|
675 | 637 | |
|
676 | 638 | compengines = [e for e in compengines if e.name() in configengines] |
|
677 | 639 | compengines = sorted(compengines, |
|
678 | 640 | key=lambda e: configengines.index(e.name())) |
|
679 | 641 | |
|
680 | 642 | if not compengines: |
|
681 | 643 | raise error.Abort(_('%s config option does not specify any known ' |
|
682 | 644 | 'compression engines') % config, |
|
683 | 645 | hint=_('usable compression engines: %s') % |
|
684 | 646 | ', '.sorted(validnames)) |
|
685 | 647 | |
|
686 | 648 | return compengines |
|
687 | 649 | |
|
688 | 650 | # list of commands |
|
689 | 651 | commands = {} |
|
690 | 652 | |
|
691 | 653 | def wireprotocommand(name, args=''): |
|
692 | 654 | """decorator for wire protocol command""" |
|
693 | 655 | def register(func): |
|
694 | 656 | commands[name] = (func, args) |
|
695 | 657 | return func |
|
696 | 658 | return register |
|
697 | 659 | |
|
698 | 660 | @wireprotocommand('batch', 'cmds *') |
|
699 | 661 | def batch(repo, proto, cmds, others): |
|
700 | 662 | repo = repo.filtered("served") |
|
701 | 663 | res = [] |
|
702 | 664 | for pair in cmds.split(';'): |
|
703 | 665 | op, args = pair.split(' ', 1) |
|
704 | 666 | vals = {} |
|
705 | 667 | for a in args.split(','): |
|
706 | 668 | if a: |
|
707 | 669 | n, v = a.split('=') |
|
708 | 670 | vals[unescapearg(n)] = unescapearg(v) |
|
709 | 671 | func, spec = commands[op] |
|
710 | 672 | if spec: |
|
711 | 673 | keys = spec.split() |
|
712 | 674 | data = {} |
|
713 | 675 | for k in keys: |
|
714 | 676 | if k == '*': |
|
715 | 677 | star = {} |
|
716 | 678 | for key in vals.keys(): |
|
717 | 679 | if key not in keys: |
|
718 | 680 | star[key] = vals[key] |
|
719 | 681 | data['*'] = star |
|
720 | 682 | else: |
|
721 | 683 | data[k] = vals[k] |
|
722 | 684 | result = func(repo, proto, *[data[k] for k in keys]) |
|
723 | 685 | else: |
|
724 | 686 | result = func(repo, proto) |
|
725 | 687 | if isinstance(result, ooberror): |
|
726 | 688 | return result |
|
727 | 689 | res.append(escapearg(result)) |
|
728 | 690 | return ';'.join(res) |
|
729 | 691 | |
|
730 | 692 | @wireprotocommand('between', 'pairs') |
|
731 | 693 | def between(repo, proto, pairs): |
|
732 | 694 | pairs = [decodelist(p, '-') for p in pairs.split(" ")] |
|
733 | 695 | r = [] |
|
734 | 696 | for b in repo.between(pairs): |
|
735 | 697 | r.append(encodelist(b) + "\n") |
|
736 | 698 | return "".join(r) |
|
737 | 699 | |
|
738 | 700 | @wireprotocommand('branchmap') |
|
739 | 701 | def branchmap(repo, proto): |
|
740 | 702 | branchmap = repo.branchmap() |
|
741 | 703 | heads = [] |
|
742 | 704 | for branch, nodes in branchmap.iteritems(): |
|
743 | 705 | branchname = urlreq.quote(encoding.fromlocal(branch)) |
|
744 | 706 | branchnodes = encodelist(nodes) |
|
745 | 707 | heads.append('%s %s' % (branchname, branchnodes)) |
|
746 | 708 | return '\n'.join(heads) |
|
747 | 709 | |
|
748 | 710 | @wireprotocommand('branches', 'nodes') |
|
749 | 711 | def branches(repo, proto, nodes): |
|
750 | 712 | nodes = decodelist(nodes) |
|
751 | 713 | r = [] |
|
752 | 714 | for b in repo.branches(nodes): |
|
753 | 715 | r.append(encodelist(b) + "\n") |
|
754 | 716 | return "".join(r) |
|
755 | 717 | |
|
756 | 718 | @wireprotocommand('clonebundles', '') |
|
757 | 719 | def clonebundles(repo, proto): |
|
758 | 720 | """Server command for returning info for available bundles to seed clones. |
|
759 | 721 | |
|
760 | 722 | Clients will parse this response and determine what bundle to fetch. |
|
761 | 723 | |
|
762 | 724 | Extensions may wrap this command to filter or dynamically emit data |
|
763 | 725 | depending on the request. e.g. you could advertise URLs for the closest |
|
764 | 726 | data center given the client's IP address. |
|
765 | 727 | """ |
|
766 | 728 | return repo.vfs.tryread('clonebundles.manifest') |
|
767 | 729 | |
|
768 | 730 | wireprotocaps = ['lookup', 'changegroupsubset', 'branchmap', 'pushkey', |
|
769 | 731 | 'known', 'getbundle', 'unbundlehash', 'batch'] |
|
770 | 732 | |
|
771 | 733 | def _capabilities(repo, proto): |
|
772 | 734 | """return a list of capabilities for a repo |
|
773 | 735 | |
|
774 | 736 | This function exists to allow extensions to easily wrap capabilities |
|
775 | 737 | computation |
|
776 | 738 | |
|
777 | 739 | - returns a lists: easy to alter |
|
778 | 740 | - change done here will be propagated to both `capabilities` and `hello` |
|
779 | 741 | command without any other action needed. |
|
780 | 742 | """ |
|
781 | 743 | # copy to prevent modification of the global list |
|
782 | 744 | caps = list(wireprotocaps) |
|
783 | 745 | if streamclone.allowservergeneration(repo): |
|
784 | 746 | if repo.ui.configbool('server', 'preferuncompressed'): |
|
785 | 747 | caps.append('stream-preferred') |
|
786 | 748 | requiredformats = repo.requirements & repo.supportedformats |
|
787 | 749 | # if our local revlogs are just revlogv1, add 'stream' cap |
|
788 | 750 | if not requiredformats - {'revlogv1'}: |
|
789 | 751 | caps.append('stream') |
|
790 | 752 | # otherwise, add 'streamreqs' detailing our local revlog format |
|
791 | 753 | else: |
|
792 | 754 | caps.append('streamreqs=%s' % ','.join(sorted(requiredformats))) |
|
793 | 755 | if repo.ui.configbool('experimental', 'bundle2-advertise'): |
|
794 | 756 | capsblob = bundle2.encodecaps(bundle2.getrepocaps(repo)) |
|
795 | 757 | caps.append('bundle2=' + urlreq.quote(capsblob)) |
|
796 | 758 | caps.append('unbundle=%s' % ','.join(bundle2.bundlepriority)) |
|
797 | 759 | |
|
798 | 760 | if proto.name == 'http': |
|
799 | 761 | caps.append('httpheader=%d' % |
|
800 | 762 | repo.ui.configint('server', 'maxhttpheaderlen')) |
|
801 | 763 | if repo.ui.configbool('experimental', 'httppostargs'): |
|
802 | 764 | caps.append('httppostargs') |
|
803 | 765 | |
|
804 | 766 | # FUTURE advertise 0.2rx once support is implemented |
|
805 | 767 | # FUTURE advertise minrx and mintx after consulting config option |
|
806 | 768 | caps.append('httpmediatype=0.1rx,0.1tx,0.2tx') |
|
807 | 769 | |
|
808 | 770 | compengines = supportedcompengines(repo.ui, proto, util.SERVERROLE) |
|
809 | 771 | if compengines: |
|
810 | 772 | comptypes = ','.join(urlreq.quote(e.wireprotosupport().name) |
|
811 | 773 | for e in compengines) |
|
812 | 774 | caps.append('compression=%s' % comptypes) |
|
813 | 775 | |
|
814 | 776 | return caps |
|
815 | 777 | |
|
816 | 778 | # If you are writing an extension and consider wrapping this function. Wrap |
|
817 | 779 | # `_capabilities` instead. |
|
818 | 780 | @wireprotocommand('capabilities') |
|
819 | 781 | def capabilities(repo, proto): |
|
820 | 782 | return ' '.join(_capabilities(repo, proto)) |
|
821 | 783 | |
|
822 | 784 | @wireprotocommand('changegroup', 'roots') |
|
823 | 785 | def changegroup(repo, proto, roots): |
|
824 | 786 | nodes = decodelist(roots) |
|
825 | 787 | cg = changegroupmod.changegroup(repo, nodes, 'serve') |
|
826 | 788 | return streamres(reader=cg, v1compressible=True) |
|
827 | 789 | |
|
828 | 790 | @wireprotocommand('changegroupsubset', 'bases heads') |
|
829 | 791 | def changegroupsubset(repo, proto, bases, heads): |
|
830 | 792 | bases = decodelist(bases) |
|
831 | 793 | heads = decodelist(heads) |
|
832 | 794 | cg = changegroupmod.changegroupsubset(repo, bases, heads, 'serve') |
|
833 | 795 | return streamres(reader=cg, v1compressible=True) |
|
834 | 796 | |
|
835 | 797 | @wireprotocommand('debugwireargs', 'one two *') |
|
836 | 798 | def debugwireargs(repo, proto, one, two, others): |
|
837 | 799 | # only accept optional args from the known set |
|
838 | 800 | opts = options('debugwireargs', ['three', 'four'], others) |
|
839 | 801 | return repo.debugwireargs(one, two, **opts) |
|
840 | 802 | |
|
841 | 803 | @wireprotocommand('getbundle', '*') |
|
842 | 804 | def getbundle(repo, proto, others): |
|
843 | 805 | opts = options('getbundle', gboptsmap.keys(), others) |
|
844 | 806 | for k, v in opts.iteritems(): |
|
845 | 807 | keytype = gboptsmap[k] |
|
846 | 808 | if keytype == 'nodes': |
|
847 | 809 | opts[k] = decodelist(v) |
|
848 | 810 | elif keytype == 'csv': |
|
849 | 811 | opts[k] = list(v.split(',')) |
|
850 | 812 | elif keytype == 'scsv': |
|
851 | 813 | opts[k] = set(v.split(',')) |
|
852 | 814 | elif keytype == 'boolean': |
|
853 | 815 | # Client should serialize False as '0', which is a non-empty string |
|
854 | 816 | # so it evaluates as a True bool. |
|
855 | 817 | if v == '0': |
|
856 | 818 | opts[k] = False |
|
857 | 819 | else: |
|
858 | 820 | opts[k] = bool(v) |
|
859 | 821 | elif keytype != 'plain': |
|
860 | 822 | raise KeyError('unknown getbundle option type %s' |
|
861 | 823 | % keytype) |
|
862 | 824 | |
|
863 | 825 | if not bundle1allowed(repo, 'pull'): |
|
864 | 826 | if not exchange.bundle2requested(opts.get('bundlecaps')): |
|
865 | 827 | if proto.name == 'http': |
|
866 | 828 | return ooberror(bundle2required) |
|
867 | 829 | raise error.Abort(bundle2requiredmain, |
|
868 | 830 | hint=bundle2requiredhint) |
|
869 | 831 | |
|
870 | 832 | try: |
|
871 | 833 | if repo.ui.configbool('server', 'disablefullbundle'): |
|
872 | 834 | # Check to see if this is a full clone. |
|
873 | 835 | clheads = set(repo.changelog.heads()) |
|
874 | 836 | heads = set(opts.get('heads', set())) |
|
875 | 837 | common = set(opts.get('common', set())) |
|
876 | 838 | common.discard(nullid) |
|
877 | 839 | if not common and clheads == heads: |
|
878 | 840 | raise error.Abort( |
|
879 | 841 | _('server has pull-based clones disabled'), |
|
880 | 842 | hint=_('remove --pull if specified or upgrade Mercurial')) |
|
881 | 843 | |
|
882 | 844 | chunks = exchange.getbundlechunks(repo, 'serve', **opts) |
|
883 | 845 | except error.Abort as exc: |
|
884 | 846 | # cleanly forward Abort error to the client |
|
885 | 847 | if not exchange.bundle2requested(opts.get('bundlecaps')): |
|
886 | 848 | if proto.name == 'http': |
|
887 | 849 | return ooberror(str(exc) + '\n') |
|
888 | 850 | raise # cannot do better for bundle1 + ssh |
|
889 | 851 | # bundle2 request expect a bundle2 reply |
|
890 | 852 | bundler = bundle2.bundle20(repo.ui) |
|
891 | 853 | manargs = [('message', str(exc))] |
|
892 | 854 | advargs = [] |
|
893 | 855 | if exc.hint is not None: |
|
894 | 856 | advargs.append(('hint', exc.hint)) |
|
895 | 857 | bundler.addpart(bundle2.bundlepart('error:abort', |
|
896 | 858 | manargs, advargs)) |
|
897 | 859 | return streamres(gen=bundler.getchunks(), v1compressible=True) |
|
898 | 860 | return streamres(gen=chunks, v1compressible=True) |
|
899 | 861 | |
|
900 | 862 | @wireprotocommand('heads') |
|
901 | 863 | def heads(repo, proto): |
|
902 | 864 | h = repo.heads() |
|
903 | 865 | return encodelist(h) + "\n" |
|
904 | 866 | |
|
905 | 867 | @wireprotocommand('hello') |
|
906 | 868 | def hello(repo, proto): |
|
907 | 869 | '''the hello command returns a set of lines describing various |
|
908 | 870 | interesting things about the server, in an RFC822-like format. |
|
909 | 871 | Currently the only one defined is "capabilities", which |
|
910 | 872 | consists of a line in the form: |
|
911 | 873 | |
|
912 | 874 | capabilities: space separated list of tokens |
|
913 | 875 | ''' |
|
914 | 876 | return "capabilities: %s\n" % (capabilities(repo, proto)) |
|
915 | 877 | |
|
916 | 878 | @wireprotocommand('listkeys', 'namespace') |
|
917 | 879 | def listkeys(repo, proto, namespace): |
|
918 | 880 | d = repo.listkeys(encoding.tolocal(namespace)).items() |
|
919 | 881 | return pushkeymod.encodekeys(d) |
|
920 | 882 | |
|
921 | 883 | @wireprotocommand('lookup', 'key') |
|
922 | 884 | def lookup(repo, proto, key): |
|
923 | 885 | try: |
|
924 | 886 | k = encoding.tolocal(key) |
|
925 | 887 | c = repo[k] |
|
926 | 888 | r = c.hex() |
|
927 | 889 | success = 1 |
|
928 | 890 | except Exception as inst: |
|
929 | 891 | r = str(inst) |
|
930 | 892 | success = 0 |
|
931 | 893 | return "%s %s\n" % (success, r) |
|
932 | 894 | |
|
933 | 895 | @wireprotocommand('known', 'nodes *') |
|
934 | 896 | def known(repo, proto, nodes, others): |
|
935 | 897 | return ''.join(b and "1" or "0" for b in repo.known(decodelist(nodes))) |
|
936 | 898 | |
|
937 | 899 | @wireprotocommand('pushkey', 'namespace key old new') |
|
938 | 900 | def pushkey(repo, proto, namespace, key, old, new): |
|
939 | 901 | # compatibility with pre-1.8 clients which were accidentally |
|
940 | 902 | # sending raw binary nodes rather than utf-8-encoded hex |
|
941 | 903 | if len(new) == 20 and util.escapestr(new) != new: |
|
942 | 904 | # looks like it could be a binary node |
|
943 | 905 | try: |
|
944 | 906 | new.decode('utf-8') |
|
945 | 907 | new = encoding.tolocal(new) # but cleanly decodes as UTF-8 |
|
946 | 908 | except UnicodeDecodeError: |
|
947 | 909 | pass # binary, leave unmodified |
|
948 | 910 | else: |
|
949 | 911 | new = encoding.tolocal(new) # normal path |
|
950 | 912 | |
|
951 | 913 | if util.safehasattr(proto, 'restore'): |
|
952 | 914 | |
|
953 | 915 | proto.redirect() |
|
954 | 916 | |
|
955 | 917 | try: |
|
956 | 918 | r = repo.pushkey(encoding.tolocal(namespace), encoding.tolocal(key), |
|
957 | 919 | encoding.tolocal(old), new) or False |
|
958 | 920 | except error.Abort: |
|
959 | 921 | r = False |
|
960 | 922 | |
|
961 | 923 | output = proto.restore() |
|
962 | 924 | |
|
963 | 925 | return '%s\n%s' % (int(r), output) |
|
964 | 926 | |
|
965 | 927 | r = repo.pushkey(encoding.tolocal(namespace), encoding.tolocal(key), |
|
966 | 928 | encoding.tolocal(old), new) |
|
967 | 929 | return '%s\n' % int(r) |
|
968 | 930 | |
|
969 | 931 | @wireprotocommand('stream_out') |
|
970 | 932 | def stream(repo, proto): |
|
971 | 933 | '''If the server supports streaming clone, it advertises the "stream" |
|
972 | 934 | capability with a value representing the version and flags of the repo |
|
973 | 935 | it is serving. Client checks to see if it understands the format. |
|
974 | 936 | ''' |
|
975 | 937 | if not streamclone.allowservergeneration(repo): |
|
976 | 938 | return '1\n' |
|
977 | 939 | |
|
978 | 940 | def getstream(it): |
|
979 | 941 | yield '0\n' |
|
980 | 942 | for chunk in it: |
|
981 | 943 | yield chunk |
|
982 | 944 | |
|
983 | 945 | try: |
|
984 | 946 | # LockError may be raised before the first result is yielded. Don't |
|
985 | 947 | # emit output until we're sure we got the lock successfully. |
|
986 | 948 | it = streamclone.generatev1wireproto(repo) |
|
987 | 949 | return streamres(gen=getstream(it)) |
|
988 | 950 | except error.LockError: |
|
989 | 951 | return '2\n' |
|
990 | 952 | |
|
991 | 953 | @wireprotocommand('unbundle', 'heads') |
|
992 | 954 | def unbundle(repo, proto, heads): |
|
993 | 955 | their_heads = decodelist(heads) |
|
994 | 956 | |
|
995 | 957 | try: |
|
996 | 958 | proto.redirect() |
|
997 | 959 | |
|
998 | 960 | exchange.check_heads(repo, their_heads, 'preparing changes') |
|
999 | 961 | |
|
1000 | 962 | # write bundle data to temporary file because it can be big |
|
1001 | 963 | fd, tempname = tempfile.mkstemp(prefix='hg-unbundle-') |
|
1002 | 964 | fp = os.fdopen(fd, pycompat.sysstr('wb+')) |
|
1003 | 965 | r = 0 |
|
1004 | 966 | try: |
|
1005 | 967 | proto.getfile(fp) |
|
1006 | 968 | fp.seek(0) |
|
1007 | 969 | gen = exchange.readbundle(repo.ui, fp, None) |
|
1008 | 970 | if (isinstance(gen, changegroupmod.cg1unpacker) |
|
1009 | 971 | and not bundle1allowed(repo, 'push')): |
|
1010 | 972 | if proto.name == 'http': |
|
1011 | 973 | # need to special case http because stderr do not get to |
|
1012 | 974 | # the http client on failed push so we need to abuse some |
|
1013 | 975 | # other error type to make sure the message get to the |
|
1014 | 976 | # user. |
|
1015 | 977 | return ooberror(bundle2required) |
|
1016 | 978 | raise error.Abort(bundle2requiredmain, |
|
1017 | 979 | hint=bundle2requiredhint) |
|
1018 | 980 | |
|
1019 | 981 | r = exchange.unbundle(repo, gen, their_heads, 'serve', |
|
1020 | 982 | proto._client()) |
|
1021 | 983 | if util.safehasattr(r, 'addpart'): |
|
1022 | 984 | # The return looks streamable, we are in the bundle2 case and |
|
1023 | 985 | # should return a stream. |
|
1024 | 986 | return streamres(gen=r.getchunks()) |
|
1025 | 987 | return pushres(r) |
|
1026 | 988 | |
|
1027 | 989 | finally: |
|
1028 | 990 | fp.close() |
|
1029 | 991 | os.unlink(tempname) |
|
1030 | 992 | |
|
1031 | 993 | except (error.BundleValueError, error.Abort, error.PushRaced) as exc: |
|
1032 | 994 | # handle non-bundle2 case first |
|
1033 | 995 | if not getattr(exc, 'duringunbundle2', False): |
|
1034 | 996 | try: |
|
1035 | 997 | raise |
|
1036 | 998 | except error.Abort: |
|
1037 | 999 | # The old code we moved used util.stderr directly. |
|
1038 | 1000 | # We did not change it to minimise code change. |
|
1039 | 1001 | # This need to be moved to something proper. |
|
1040 | 1002 | # Feel free to do it. |
|
1041 | 1003 | util.stderr.write("abort: %s\n" % exc) |
|
1042 | 1004 | if exc.hint is not None: |
|
1043 | 1005 | util.stderr.write("(%s)\n" % exc.hint) |
|
1044 | 1006 | return pushres(0) |
|
1045 | 1007 | except error.PushRaced: |
|
1046 | 1008 | return pusherr(str(exc)) |
|
1047 | 1009 | |
|
1048 | 1010 | bundler = bundle2.bundle20(repo.ui) |
|
1049 | 1011 | for out in getattr(exc, '_bundle2salvagedoutput', ()): |
|
1050 | 1012 | bundler.addpart(out) |
|
1051 | 1013 | try: |
|
1052 | 1014 | try: |
|
1053 | 1015 | raise |
|
1054 | 1016 | except error.PushkeyFailed as exc: |
|
1055 | 1017 | # check client caps |
|
1056 | 1018 | remotecaps = getattr(exc, '_replycaps', None) |
|
1057 | 1019 | if (remotecaps is not None |
|
1058 | 1020 | and 'pushkey' not in remotecaps.get('error', ())): |
|
1059 | 1021 | # no support remote side, fallback to Abort handler. |
|
1060 | 1022 | raise |
|
1061 | 1023 | part = bundler.newpart('error:pushkey') |
|
1062 | 1024 | part.addparam('in-reply-to', exc.partid) |
|
1063 | 1025 | if exc.namespace is not None: |
|
1064 | 1026 | part.addparam('namespace', exc.namespace, mandatory=False) |
|
1065 | 1027 | if exc.key is not None: |
|
1066 | 1028 | part.addparam('key', exc.key, mandatory=False) |
|
1067 | 1029 | if exc.new is not None: |
|
1068 | 1030 | part.addparam('new', exc.new, mandatory=False) |
|
1069 | 1031 | if exc.old is not None: |
|
1070 | 1032 | part.addparam('old', exc.old, mandatory=False) |
|
1071 | 1033 | if exc.ret is not None: |
|
1072 | 1034 | part.addparam('ret', exc.ret, mandatory=False) |
|
1073 | 1035 | except error.BundleValueError as exc: |
|
1074 | 1036 | errpart = bundler.newpart('error:unsupportedcontent') |
|
1075 | 1037 | if exc.parttype is not None: |
|
1076 | 1038 | errpart.addparam('parttype', exc.parttype) |
|
1077 | 1039 | if exc.params: |
|
1078 | 1040 | errpart.addparam('params', '\0'.join(exc.params)) |
|
1079 | 1041 | except error.Abort as exc: |
|
1080 | 1042 | manargs = [('message', str(exc))] |
|
1081 | 1043 | advargs = [] |
|
1082 | 1044 | if exc.hint is not None: |
|
1083 | 1045 | advargs.append(('hint', exc.hint)) |
|
1084 | 1046 | bundler.addpart(bundle2.bundlepart('error:abort', |
|
1085 | 1047 | manargs, advargs)) |
|
1086 | 1048 | except error.PushRaced as exc: |
|
1087 | 1049 | bundler.newpart('error:pushraced', [('message', str(exc))]) |
|
1088 | 1050 | return streamres(gen=bundler.getchunks()) |
@@ -1,61 +1,61 b'' | |||
|
1 | 1 | from __future__ import absolute_import, print_function |
|
2 | 2 | |
|
3 | 3 | from mercurial import ( |
|
4 | 4 | util, |
|
5 | 5 | wireproto, |
|
6 | 6 | ) |
|
7 | 7 | stringio = util.stringio |
|
8 | 8 | |
|
9 | 9 | class proto(object): |
|
10 | 10 | def __init__(self, args): |
|
11 | 11 | self.args = args |
|
12 | 12 | def getargs(self, spec): |
|
13 | 13 | args = self.args |
|
14 | 14 | args.setdefault('*', {}) |
|
15 | 15 | names = spec.split() |
|
16 | 16 | return [args[n] for n in names] |
|
17 | 17 | |
|
18 | 18 | class clientpeer(wireproto.wirepeer): |
|
19 | 19 | def __init__(self, serverrepo): |
|
20 | 20 | self.serverrepo = serverrepo |
|
21 | 21 | |
|
22 | 22 | def _capabilities(self): |
|
23 | 23 | return ['batch'] |
|
24 | 24 | |
|
25 | 25 | def _call(self, cmd, **args): |
|
26 | 26 | return wireproto.dispatch(self.serverrepo, proto(args), cmd) |
|
27 | 27 | |
|
28 | 28 | def _callstream(self, cmd, **args): |
|
29 | 29 | return stringio(self._call(cmd, **args)) |
|
30 | 30 | |
|
31 | 31 | @wireproto.batchable |
|
32 | 32 | def greet(self, name): |
|
33 | 33 | f = wireproto.future() |
|
34 | 34 | yield {'name': mangle(name)}, f |
|
35 | 35 | yield unmangle(f.value) |
|
36 | 36 | |
|
37 | 37 | class serverrepo(object): |
|
38 | 38 | def greet(self, name): |
|
39 | 39 | return "Hello, " + name |
|
40 | 40 | |
|
41 | 41 | def filtered(self, name): |
|
42 | 42 | return self |
|
43 | 43 | |
|
44 | 44 | def mangle(s): |
|
45 | 45 | return ''.join(chr(ord(c) + 1) for c in s) |
|
46 | 46 | def unmangle(s): |
|
47 | 47 | return ''.join(chr(ord(c) - 1) for c in s) |
|
48 | 48 | |
|
49 | 49 | def greet(repo, proto, name): |
|
50 | 50 | return mangle(repo.greet(unmangle(name))) |
|
51 | 51 | |
|
52 | 52 | wireproto.commands['greet'] = (greet, 'name',) |
|
53 | 53 | |
|
54 | 54 | srv = serverrepo() |
|
55 | 55 | clt = clientpeer(srv) |
|
56 | 56 | |
|
57 | 57 | print(clt.greet("Foobar")) |
|
58 | b = clt.batch() | |
|
59 | fs = [b.greet(s) for s in ["Fo, =;:<o", "Bar"]] | |
|
58 | b = clt.iterbatch() | |
|
59 | map(b.greet, ('Fo, =;:<o', 'Bar')) | |
|
60 | 60 | b.submit() |
|
61 |
print([ |
|
|
61 | print([r for r in b.results()]) |
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