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@@ -1,716 +1,713 b'' | |||
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1 | 1 | # bundlerepo.py - repository class for viewing uncompressed bundles |
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2 | 2 | # |
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3 | 3 | # Copyright 2006, 2007 Benoit Boissinot <bboissin@gmail.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 | """Repository class for viewing uncompressed bundles. |
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9 | 9 | |
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10 | 10 | This provides a read-only repository interface to bundles as if they |
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11 | 11 | were part of the actual repository. |
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12 | 12 | """ |
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13 | 13 | |
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14 | 14 | |
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15 | 15 | import os |
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16 | 16 | import shutil |
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17 | 17 | |
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18 | 18 | from .i18n import _ |
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19 | 19 | from .node import ( |
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20 | 20 | hex, |
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21 | 21 | nullrev, |
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22 | 22 | ) |
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23 | 23 | |
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24 | 24 | from . import ( |
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25 | 25 | bundle2, |
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26 | 26 | changegroup, |
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27 | 27 | changelog, |
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28 | 28 | cmdutil, |
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29 | 29 | discovery, |
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30 | 30 | encoding, |
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31 | 31 | error, |
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32 | 32 | exchange, |
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33 | 33 | filelog, |
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34 | 34 | localrepo, |
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35 | 35 | manifest, |
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36 | 36 | mdiff, |
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37 | 37 | pathutil, |
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38 | 38 | phases, |
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39 | 39 | pycompat, |
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40 | 40 | revlog, |
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41 | 41 | revlogutils, |
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42 | 42 | util, |
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43 | 43 | vfs as vfsmod, |
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44 | 44 | ) |
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45 | 45 | from .utils import ( |
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46 | 46 | urlutil, |
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47 | 47 | ) |
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48 | 48 | |
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49 | 49 | from .revlogutils import ( |
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50 | 50 | constants as revlog_constants, |
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51 | 51 | ) |
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52 | 52 | |
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53 | 53 | |
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54 | 54 | class bundlerevlog(revlog.revlog): |
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55 | 55 | def __init__(self, opener, target, radix, cgunpacker, linkmapper): |
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56 | 56 | # How it works: |
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57 | 57 | # To retrieve a revision, we need to know the offset of the revision in |
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58 | 58 | # the bundle (an unbundle object). We store this offset in the index |
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59 | 59 | # (start). The base of the delta is stored in the base field. |
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60 | 60 | # |
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61 | 61 | # To differentiate a rev in the bundle from a rev in the revlog, we |
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62 | 62 | # check revision against repotiprev. |
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63 | 63 | opener = vfsmod.readonlyvfs(opener) |
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64 | 64 | revlog.revlog.__init__(self, opener, target=target, radix=radix) |
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65 | 65 | self.bundle = cgunpacker |
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66 | 66 | n = len(self) |
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67 | 67 | self.repotiprev = n - 1 |
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68 | 68 | self.bundlerevs = set() # used by 'bundle()' revset expression |
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69 | 69 | for deltadata in cgunpacker.deltaiter(): |
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70 | 70 | node, p1, p2, cs, deltabase, delta, flags, sidedata = deltadata |
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71 | 71 | |
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72 | 72 | size = len(delta) |
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73 | 73 | start = cgunpacker.tell() - size |
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74 | 74 | |
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75 | 75 | if self.index.has_node(node): |
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76 | 76 | # this can happen if two branches make the same change |
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77 | 77 | self.bundlerevs.add(self.index.rev(node)) |
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78 | 78 | continue |
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79 | 79 | if cs == node: |
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80 | 80 | linkrev = nullrev |
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81 | 81 | else: |
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82 | 82 | linkrev = linkmapper(cs) |
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83 | 83 | |
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84 | 84 | for p in (p1, p2): |
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85 | 85 | if not self.index.has_node(p): |
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86 | 86 | raise error.LookupError( |
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87 | 87 | p, self.display_id, _(b"unknown parent") |
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88 | 88 | ) |
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89 | 89 | |
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90 | 90 | if not self.index.has_node(deltabase): |
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91 | 91 | raise error.LookupError( |
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92 | 92 | deltabase, self.display_id, _(b'unknown delta base') |
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93 | 93 | ) |
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94 | 94 | |
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95 | 95 | baserev = self.rev(deltabase) |
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96 | 96 | # start, size, full unc. size, base (unused), link, p1, p2, node, sidedata_offset (unused), sidedata_size (unused) |
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97 | 97 | e = revlogutils.entry( |
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98 | 98 | flags=flags, |
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99 | 99 | data_offset=start, |
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100 | 100 | data_compressed_length=size, |
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101 | 101 | data_delta_base=baserev, |
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102 | 102 | link_rev=linkrev, |
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103 | 103 | parent_rev_1=self.rev(p1), |
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104 | 104 | parent_rev_2=self.rev(p2), |
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105 | 105 | node_id=node, |
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106 | 106 | ) |
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107 | 107 | self.index.append(e) |
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108 | 108 | self.bundlerevs.add(n) |
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109 | 109 | n += 1 |
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110 | 110 | |
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111 | 111 | def _chunk(self, rev, df=None): |
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112 | 112 | # Warning: in case of bundle, the diff is against what we stored as |
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113 | 113 | # delta base, not against rev - 1 |
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114 | 114 | # XXX: could use some caching |
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115 | 115 | if rev <= self.repotiprev: |
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116 | 116 | return revlog.revlog._chunk(self, rev) |
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117 | 117 | self.bundle.seek(self.start(rev)) |
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118 | 118 | return self.bundle.read(self.length(rev)) |
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119 | 119 | |
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120 | 120 | def revdiff(self, rev1, rev2): |
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121 | 121 | """return or calculate a delta between two revisions""" |
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122 | 122 | if rev1 > self.repotiprev and rev2 > self.repotiprev: |
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123 | 123 | # hot path for bundle |
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124 | 124 | revb = self.index[rev2][3] |
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125 | 125 | if revb == rev1: |
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126 | 126 | return self._chunk(rev2) |
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127 | 127 | elif rev1 <= self.repotiprev and rev2 <= self.repotiprev: |
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128 | 128 | return revlog.revlog.revdiff(self, rev1, rev2) |
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129 | 129 | |
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130 | 130 | return mdiff.textdiff(self.rawdata(rev1), self.rawdata(rev2)) |
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131 | 131 | |
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132 | 132 | def _rawtext(self, node, rev, _df=None): |
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133 | 133 | if rev is None: |
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134 | 134 | rev = self.rev(node) |
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135 | 135 | validated = False |
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136 | 136 | rawtext = None |
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137 | 137 | chain = [] |
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138 | 138 | iterrev = rev |
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139 | 139 | # reconstruct the revision if it is from a changegroup |
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140 | 140 | while iterrev > self.repotiprev: |
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141 | 141 | if self._revisioncache and self._revisioncache[1] == iterrev: |
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142 | 142 | rawtext = self._revisioncache[2] |
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143 | 143 | break |
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144 | 144 | chain.append(iterrev) |
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145 | 145 | iterrev = self.index[iterrev][3] |
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146 | 146 | if iterrev == nullrev: |
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147 | 147 | rawtext = b'' |
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148 | 148 | elif rawtext is None: |
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149 | 149 | r = super(bundlerevlog, self)._rawtext( |
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150 | 150 | self.node(iterrev), iterrev, _df=_df |
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151 | 151 | ) |
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152 | 152 | __, rawtext, validated = r |
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153 | 153 | if chain: |
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154 | 154 | validated = False |
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155 | 155 | while chain: |
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156 | 156 | delta = self._chunk(chain.pop()) |
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157 | 157 | rawtext = mdiff.patches(rawtext, [delta]) |
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158 | 158 | return rev, rawtext, validated |
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159 | 159 | |
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160 | 160 | def addrevision(self, *args, **kwargs): |
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161 | 161 | raise NotImplementedError |
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162 | 162 | |
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163 | 163 | def addgroup(self, *args, **kwargs): |
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164 | 164 | raise NotImplementedError |
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165 | 165 | |
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166 | 166 | def strip(self, *args, **kwargs): |
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167 | 167 | raise NotImplementedError |
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168 | 168 | |
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169 | 169 | def checksize(self): |
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170 | 170 | raise NotImplementedError |
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171 | 171 | |
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172 | 172 | |
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173 | 173 | class bundlechangelog(bundlerevlog, changelog.changelog): |
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174 | 174 | def __init__(self, opener, cgunpacker): |
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175 | 175 | changelog.changelog.__init__(self, opener) |
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176 | 176 | linkmapper = lambda x: x |
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177 | 177 | bundlerevlog.__init__( |
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178 | 178 | self, |
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179 | 179 | opener, |
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180 | 180 | (revlog_constants.KIND_CHANGELOG, None), |
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181 | 181 | self.radix, |
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182 | 182 | cgunpacker, |
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183 | 183 | linkmapper, |
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184 | 184 | ) |
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185 | 185 | |
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186 | 186 | |
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187 | 187 | class bundlemanifest(bundlerevlog, manifest.manifestrevlog): |
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188 | 188 | def __init__( |
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189 | 189 | self, |
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190 | 190 | nodeconstants, |
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191 | 191 | opener, |
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192 | 192 | cgunpacker, |
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193 | 193 | linkmapper, |
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194 | 194 | dirlogstarts=None, |
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195 | 195 | dir=b'', |
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196 | 196 | ): |
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197 | 197 | manifest.manifestrevlog.__init__(self, nodeconstants, opener, tree=dir) |
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198 | 198 | bundlerevlog.__init__( |
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199 | 199 | self, |
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200 | 200 | opener, |
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201 | 201 | (revlog_constants.KIND_MANIFESTLOG, dir), |
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202 | 202 | self._revlog.radix, |
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203 | 203 | cgunpacker, |
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204 | 204 | linkmapper, |
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205 | 205 | ) |
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206 | 206 | if dirlogstarts is None: |
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207 | 207 | dirlogstarts = {} |
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208 | 208 | if self.bundle.version == b"03": |
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209 | 209 | dirlogstarts = _getfilestarts(self.bundle) |
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210 | 210 | self._dirlogstarts = dirlogstarts |
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211 | 211 | self._linkmapper = linkmapper |
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212 | 212 | |
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213 | 213 | def dirlog(self, d): |
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214 | 214 | if d in self._dirlogstarts: |
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215 | 215 | self.bundle.seek(self._dirlogstarts[d]) |
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216 | 216 | return bundlemanifest( |
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217 | 217 | self.nodeconstants, |
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218 | 218 | self.opener, |
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219 | 219 | self.bundle, |
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220 | 220 | self._linkmapper, |
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221 | 221 | self._dirlogstarts, |
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222 | 222 | dir=d, |
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223 | 223 | ) |
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224 | 224 | return super(bundlemanifest, self).dirlog(d) |
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225 | 225 | |
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226 | 226 | |
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227 | 227 | class bundlefilelog(filelog.filelog): |
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228 | 228 | def __init__(self, opener, path, cgunpacker, linkmapper): |
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229 | 229 | filelog.filelog.__init__(self, opener, path) |
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230 | 230 | self._revlog = bundlerevlog( |
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231 | 231 | opener, |
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232 | 232 | # XXX should use the unencoded path |
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233 | 233 | target=(revlog_constants.KIND_FILELOG, path), |
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234 | 234 | radix=self._revlog.radix, |
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235 | 235 | cgunpacker=cgunpacker, |
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236 | 236 | linkmapper=linkmapper, |
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237 | 237 | ) |
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238 | 238 | |
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239 | 239 | |
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240 | 240 | class bundlepeer(localrepo.localpeer): |
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241 | 241 | def canpush(self): |
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242 | 242 | return False |
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243 | 243 | |
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244 | 244 | |
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245 | 245 | class bundlephasecache(phases.phasecache): |
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246 | 246 | def __init__(self, *args, **kwargs): |
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247 | 247 | super(bundlephasecache, self).__init__(*args, **kwargs) |
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248 | 248 | if util.safehasattr(self, 'opener'): |
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249 | 249 | self.opener = vfsmod.readonlyvfs(self.opener) |
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250 | 250 | |
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251 | 251 | def write(self): |
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252 | 252 | raise NotImplementedError |
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253 | 253 | |
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254 | 254 | def _write(self, fp): |
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255 | 255 | raise NotImplementedError |
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256 | 256 | |
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257 | 257 | def _updateroots(self, phase, newroots, tr): |
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258 | 258 | self.phaseroots[phase] = newroots |
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259 | 259 | self.invalidate() |
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260 | 260 | self.dirty = True |
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261 | 261 | |
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262 | 262 | |
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263 | 263 | def _getfilestarts(cgunpacker): |
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264 | 264 | filespos = {} |
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265 | 265 | for chunkdata in iter(cgunpacker.filelogheader, {}): |
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266 | 266 | fname = chunkdata[b'filename'] |
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267 | 267 | filespos[fname] = cgunpacker.tell() |
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268 | 268 | for chunk in iter(lambda: cgunpacker.deltachunk(None), {}): |
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269 | 269 | pass |
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270 | 270 | return filespos |
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271 | 271 | |
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272 | 272 | |
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273 | 273 | class bundlerepository: |
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274 | 274 | """A repository instance that is a union of a local repo and a bundle. |
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275 | 275 | |
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276 | 276 | Instances represent a read-only repository composed of a local repository |
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277 | 277 | with the contents of a bundle file applied. The repository instance is |
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278 | 278 | conceptually similar to the state of a repository after an |
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279 | 279 | ``hg unbundle`` operation. However, the contents of the bundle are never |
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280 | 280 | applied to the actual base repository. |
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281 | 281 | |
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282 | 282 | Instances constructed directly are not usable as repository objects. |
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283 | 283 | Use instance() or makebundlerepository() to create instances. |
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284 | 284 | """ |
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285 | 285 | |
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286 | 286 | def __init__(self, bundlepath, url, tempparent): |
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287 | 287 | self._tempparent = tempparent |
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288 | 288 | self._url = url |
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289 | 289 | |
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290 | 290 | self.ui.setconfig(b'phases', b'publish', False, b'bundlerepo') |
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291 | 291 | |
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292 | 292 | self.tempfile = None |
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293 | 293 | f = util.posixfile(bundlepath, b"rb") |
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294 | 294 | bundle = exchange.readbundle(self.ui, f, bundlepath) |
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295 | 295 | |
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296 | 296 | if isinstance(bundle, bundle2.unbundle20): |
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297 | 297 | self._bundlefile = bundle |
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298 | 298 | self._cgunpacker = None |
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299 | 299 | |
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300 | 300 | cgpart = None |
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301 | 301 | for part in bundle.iterparts(seekable=True): |
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302 | 302 | if part.type == b'changegroup': |
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303 | 303 | if cgpart: |
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304 | 304 | raise NotImplementedError( |
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305 | 305 | b"can't process multiple changegroups" |
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306 | 306 | ) |
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307 | 307 | cgpart = part |
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308 | ||
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309 | self._handlebundle2part(bundle, part) | |
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308 | self._handle_bundle2_cg_part(bundle, part) | |
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310 | 309 | |
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311 | 310 | if not cgpart: |
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312 | 311 | raise error.Abort(_(b"No changegroups found")) |
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313 | 312 | |
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314 | 313 | # This is required to placate a later consumer, which expects |
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315 | 314 | # the payload offset to be at the beginning of the changegroup. |
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316 | 315 | # We need to do this after the iterparts() generator advances |
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317 | 316 | # because iterparts() will seek to end of payload after the |
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318 | 317 | # generator returns control to iterparts(). |
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319 | 318 | cgpart.seek(0, os.SEEK_SET) |
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320 | 319 | |
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321 | 320 | elif isinstance(bundle, changegroup.cg1unpacker): |
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322 | 321 | if bundle.compressed(): |
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323 | 322 | f = self._writetempbundle( |
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324 | 323 | bundle.read, b'.hg10un', header=b'HG10UN' |
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325 | 324 | ) |
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326 | 325 | bundle = exchange.readbundle(self.ui, f, bundlepath, self.vfs) |
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327 | 326 | |
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328 | 327 | self._bundlefile = bundle |
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329 | 328 | self._cgunpacker = bundle |
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330 | 329 | else: |
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331 | 330 | raise error.Abort( |
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332 | 331 | _(b'bundle type %s cannot be read') % type(bundle) |
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333 | 332 | ) |
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334 | 333 | |
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335 | 334 | # dict with the mapping 'filename' -> position in the changegroup. |
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336 | 335 | self._cgfilespos = {} |
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337 | 336 | |
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338 | 337 | self.firstnewrev = self.changelog.repotiprev + 1 |
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339 | 338 | phases.retractboundary( |
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340 | 339 | self, |
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341 | 340 | None, |
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342 | 341 | phases.draft, |
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343 | 342 | [ctx.node() for ctx in self[self.firstnewrev :]], |
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344 | 343 | ) |
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345 | 344 | |
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346 | def _handlebundle2part(self, bundle, part): | |
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347 |
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|
348 | return | |
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349 | ||
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345 | def _handle_bundle2_cg_part(self, bundle, part): | |
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346 | assert part.type == b'changegroup' | |
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350 | 347 | cgstream = part |
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351 | 348 | version = part.params.get(b'version', b'01') |
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352 | 349 | legalcgvers = changegroup.supportedincomingversions(self) |
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353 | 350 | if version not in legalcgvers: |
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354 | 351 | msg = _(b'Unsupported changegroup version: %s') |
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355 | 352 | raise error.Abort(msg % version) |
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356 | 353 | if bundle.compressed(): |
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357 | 354 | cgstream = self._writetempbundle(part.read, b'.cg%sun' % version) |
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358 | 355 | |
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359 | 356 | self._cgunpacker = changegroup.getunbundler(version, cgstream, b'UN') |
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360 | 357 | |
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361 | 358 | def _writetempbundle(self, readfn, suffix, header=b''): |
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362 | 359 | """Write a temporary file to disk""" |
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363 | 360 | fdtemp, temp = self.vfs.mkstemp(prefix=b"hg-bundle-", suffix=suffix) |
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364 | 361 | self.tempfile = temp |
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365 | 362 | |
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366 | 363 | with os.fdopen(fdtemp, 'wb') as fptemp: |
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367 | 364 | fptemp.write(header) |
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368 | 365 | while True: |
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369 | 366 | chunk = readfn(2 ** 18) |
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370 | 367 | if not chunk: |
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371 | 368 | break |
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372 | 369 | fptemp.write(chunk) |
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373 | 370 | |
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374 | 371 | return self.vfs.open(self.tempfile, mode=b"rb") |
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375 | 372 | |
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376 | 373 | @localrepo.unfilteredpropertycache |
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377 | 374 | def _phasecache(self): |
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378 | 375 | return bundlephasecache(self, self._phasedefaults) |
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379 | 376 | |
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380 | 377 | @localrepo.unfilteredpropertycache |
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381 | 378 | def changelog(self): |
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382 | 379 | # consume the header if it exists |
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383 | 380 | self._cgunpacker.changelogheader() |
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384 | 381 | c = bundlechangelog(self.svfs, self._cgunpacker) |
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385 | 382 | self.manstart = self._cgunpacker.tell() |
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386 | 383 | return c |
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387 | 384 | |
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388 | 385 | def _refreshchangelog(self): |
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389 | 386 | # changelog for bundle repo are not filecache, this method is not |
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390 | 387 | # applicable. |
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391 | 388 | pass |
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392 | 389 | |
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393 | 390 | @localrepo.unfilteredpropertycache |
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394 | 391 | def manifestlog(self): |
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395 | 392 | self._cgunpacker.seek(self.manstart) |
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396 | 393 | # consume the header if it exists |
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397 | 394 | self._cgunpacker.manifestheader() |
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398 | 395 | linkmapper = self.unfiltered().changelog.rev |
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399 | 396 | rootstore = bundlemanifest( |
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400 | 397 | self.nodeconstants, self.svfs, self._cgunpacker, linkmapper |
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401 | 398 | ) |
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402 | 399 | self.filestart = self._cgunpacker.tell() |
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403 | 400 | |
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404 | 401 | return manifest.manifestlog( |
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405 | 402 | self.svfs, self, rootstore, self.narrowmatch() |
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406 | 403 | ) |
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407 | 404 | |
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408 | 405 | def _consumemanifest(self): |
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409 | 406 | """Consumes the manifest portion of the bundle, setting filestart so the |
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410 | 407 | file portion can be read.""" |
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411 | 408 | self._cgunpacker.seek(self.manstart) |
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412 | 409 | self._cgunpacker.manifestheader() |
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413 | 410 | for delta in self._cgunpacker.deltaiter(): |
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414 | 411 | pass |
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415 | 412 | self.filestart = self._cgunpacker.tell() |
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416 | 413 | |
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417 | 414 | @localrepo.unfilteredpropertycache |
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418 | 415 | def manstart(self): |
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419 | 416 | self.changelog |
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420 | 417 | return self.manstart |
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421 | 418 | |
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422 | 419 | @localrepo.unfilteredpropertycache |
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423 | 420 | def filestart(self): |
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424 | 421 | self.manifestlog |
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425 | 422 | |
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426 | 423 | # If filestart was not set by self.manifestlog, that means the |
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427 | 424 | # manifestlog implementation did not consume the manifests from the |
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428 | 425 | # changegroup (ex: it might be consuming trees from a separate bundle2 |
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429 | 426 | # part instead). So we need to manually consume it. |
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430 | 427 | if 'filestart' not in self.__dict__: |
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431 | 428 | self._consumemanifest() |
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432 | 429 | |
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433 | 430 | return self.filestart |
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434 | 431 | |
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435 | 432 | def url(self): |
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436 | 433 | return self._url |
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437 | 434 | |
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438 | 435 | def file(self, f): |
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439 | 436 | if not self._cgfilespos: |
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440 | 437 | self._cgunpacker.seek(self.filestart) |
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441 | 438 | self._cgfilespos = _getfilestarts(self._cgunpacker) |
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442 | 439 | |
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443 | 440 | if f in self._cgfilespos: |
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444 | 441 | self._cgunpacker.seek(self._cgfilespos[f]) |
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445 | 442 | linkmapper = self.unfiltered().changelog.rev |
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446 | 443 | return bundlefilelog(self.svfs, f, self._cgunpacker, linkmapper) |
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447 | 444 | else: |
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448 | 445 | return super(bundlerepository, self).file(f) |
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449 | 446 | |
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450 | 447 | def close(self): |
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451 | 448 | """Close assigned bundle file immediately.""" |
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452 | 449 | self._bundlefile.close() |
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453 | 450 | if self.tempfile is not None: |
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454 | 451 | self.vfs.unlink(self.tempfile) |
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455 | 452 | if self._tempparent: |
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456 | 453 | shutil.rmtree(self._tempparent, True) |
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457 | 454 | |
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458 | 455 | def cancopy(self): |
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459 | 456 | return False |
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460 | 457 | |
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461 | 458 | def peer(self, path=None): |
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462 | 459 | return bundlepeer(self, path=path) |
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463 | 460 | |
|
464 | 461 | def getcwd(self): |
|
465 | 462 | return encoding.getcwd() # always outside the repo |
|
466 | 463 | |
|
467 | 464 | # Check if parents exist in localrepo before setting |
|
468 | 465 | def setparents(self, p1, p2=None): |
|
469 | 466 | if p2 is None: |
|
470 | 467 | p2 = self.nullid |
|
471 | 468 | p1rev = self.changelog.rev(p1) |
|
472 | 469 | p2rev = self.changelog.rev(p2) |
|
473 | 470 | msg = _(b"setting parent to node %s that only exists in the bundle\n") |
|
474 | 471 | if self.changelog.repotiprev < p1rev: |
|
475 | 472 | self.ui.warn(msg % hex(p1)) |
|
476 | 473 | if self.changelog.repotiprev < p2rev: |
|
477 | 474 | self.ui.warn(msg % hex(p2)) |
|
478 | 475 | return super(bundlerepository, self).setparents(p1, p2) |
|
479 | 476 | |
|
480 | 477 | |
|
481 | 478 | def instance(ui, path, create, intents=None, createopts=None): |
|
482 | 479 | if create: |
|
483 | 480 | raise error.Abort(_(b'cannot create new bundle repository')) |
|
484 | 481 | # internal config: bundle.mainreporoot |
|
485 | 482 | parentpath = ui.config(b"bundle", b"mainreporoot") |
|
486 | 483 | if not parentpath: |
|
487 | 484 | # try to find the correct path to the working directory repo |
|
488 | 485 | parentpath = cmdutil.findrepo(encoding.getcwd()) |
|
489 | 486 | if parentpath is None: |
|
490 | 487 | parentpath = b'' |
|
491 | 488 | if parentpath: |
|
492 | 489 | # Try to make the full path relative so we get a nice, short URL. |
|
493 | 490 | # In particular, we don't want temp dir names in test outputs. |
|
494 | 491 | cwd = encoding.getcwd() |
|
495 | 492 | if parentpath == cwd: |
|
496 | 493 | parentpath = b'' |
|
497 | 494 | else: |
|
498 | 495 | cwd = pathutil.normasprefix(cwd) |
|
499 | 496 | if parentpath.startswith(cwd): |
|
500 | 497 | parentpath = parentpath[len(cwd) :] |
|
501 | 498 | u = urlutil.url(path) |
|
502 | 499 | path = u.localpath() |
|
503 | 500 | if u.scheme == b'bundle': |
|
504 | 501 | s = path.split(b"+", 1) |
|
505 | 502 | if len(s) == 1: |
|
506 | 503 | repopath, bundlename = parentpath, s[0] |
|
507 | 504 | else: |
|
508 | 505 | repopath, bundlename = s |
|
509 | 506 | else: |
|
510 | 507 | repopath, bundlename = parentpath, path |
|
511 | 508 | |
|
512 | 509 | return makebundlerepository(ui, repopath, bundlename) |
|
513 | 510 | |
|
514 | 511 | |
|
515 | 512 | def makebundlerepository(ui, repopath, bundlepath): |
|
516 | 513 | """Make a bundle repository object based on repo and bundle paths.""" |
|
517 | 514 | if repopath: |
|
518 | 515 | url = b'bundle:%s+%s' % (util.expandpath(repopath), bundlepath) |
|
519 | 516 | else: |
|
520 | 517 | url = b'bundle:%s' % bundlepath |
|
521 | 518 | |
|
522 | 519 | # Because we can't make any guarantees about the type of the base |
|
523 | 520 | # repository, we can't have a static class representing the bundle |
|
524 | 521 | # repository. We also can't make any guarantees about how to even |
|
525 | 522 | # call the base repository's constructor! |
|
526 | 523 | # |
|
527 | 524 | # So, our strategy is to go through ``localrepo.instance()`` to construct |
|
528 | 525 | # a repo instance. Then, we dynamically create a new type derived from |
|
529 | 526 | # both it and our ``bundlerepository`` class which overrides some |
|
530 | 527 | # functionality. We then change the type of the constructed repository |
|
531 | 528 | # to this new type and initialize the bundle-specific bits of it. |
|
532 | 529 | |
|
533 | 530 | try: |
|
534 | 531 | repo = localrepo.instance(ui, repopath, create=False) |
|
535 | 532 | tempparent = None |
|
536 | 533 | except error.RequirementError: |
|
537 | 534 | raise # no fallback if the backing repo is unsupported |
|
538 | 535 | except error.RepoError: |
|
539 | 536 | tempparent = pycompat.mkdtemp() |
|
540 | 537 | try: |
|
541 | 538 | repo = localrepo.instance(ui, tempparent, create=True) |
|
542 | 539 | except Exception: |
|
543 | 540 | shutil.rmtree(tempparent) |
|
544 | 541 | raise |
|
545 | 542 | |
|
546 | 543 | class derivedbundlerepository(bundlerepository, repo.__class__): |
|
547 | 544 | pass |
|
548 | 545 | |
|
549 | 546 | repo.__class__ = derivedbundlerepository |
|
550 | 547 | bundlerepository.__init__(repo, bundlepath, url, tempparent) |
|
551 | 548 | |
|
552 | 549 | return repo |
|
553 | 550 | |
|
554 | 551 | |
|
555 | 552 | class bundletransactionmanager: |
|
556 | 553 | def transaction(self): |
|
557 | 554 | return None |
|
558 | 555 | |
|
559 | 556 | def close(self): |
|
560 | 557 | raise NotImplementedError |
|
561 | 558 | |
|
562 | 559 | def release(self): |
|
563 | 560 | raise NotImplementedError |
|
564 | 561 | |
|
565 | 562 | |
|
566 | 563 | def getremotechanges( |
|
567 | 564 | ui, repo, peer, onlyheads=None, bundlename=None, force=False |
|
568 | 565 | ): |
|
569 | 566 | """obtains a bundle of changes incoming from peer |
|
570 | 567 | |
|
571 | 568 | "onlyheads" restricts the returned changes to those reachable from the |
|
572 | 569 | specified heads. |
|
573 | 570 | "bundlename", if given, stores the bundle to this file path permanently; |
|
574 | 571 | otherwise it's stored to a temp file and gets deleted again when you call |
|
575 | 572 | the returned "cleanupfn". |
|
576 | 573 | "force" indicates whether to proceed on unrelated repos. |
|
577 | 574 | |
|
578 | 575 | Returns a tuple (local, csets, cleanupfn): |
|
579 | 576 | |
|
580 | 577 | "local" is a local repo from which to obtain the actual incoming |
|
581 | 578 | changesets; it is a bundlerepo for the obtained bundle when the |
|
582 | 579 | original "peer" is remote. |
|
583 | 580 | "csets" lists the incoming changeset node ids. |
|
584 | 581 | "cleanupfn" must be called without arguments when you're done processing |
|
585 | 582 | the changes; it closes both the original "peer" and the one returned |
|
586 | 583 | here. |
|
587 | 584 | """ |
|
588 | 585 | tmp = discovery.findcommonincoming(repo, peer, heads=onlyheads, force=force) |
|
589 | 586 | common, incoming, rheads = tmp |
|
590 | 587 | if not incoming: |
|
591 | 588 | try: |
|
592 | 589 | if bundlename: |
|
593 | 590 | os.unlink(bundlename) |
|
594 | 591 | except OSError: |
|
595 | 592 | pass |
|
596 | 593 | return repo, [], peer.close |
|
597 | 594 | |
|
598 | 595 | commonset = set(common) |
|
599 | 596 | rheads = [x for x in rheads if x not in commonset] |
|
600 | 597 | |
|
601 | 598 | bundle = None |
|
602 | 599 | bundlerepo = None |
|
603 | 600 | localrepo = peer.local() |
|
604 | 601 | if bundlename or not localrepo: |
|
605 | 602 | # create a bundle (uncompressed if peer repo is not local) |
|
606 | 603 | |
|
607 | 604 | # developer config: devel.legacy.exchange |
|
608 | 605 | legexc = ui.configlist(b'devel', b'legacy.exchange') |
|
609 | 606 | forcebundle1 = b'bundle2' not in legexc and b'bundle1' in legexc |
|
610 | 607 | canbundle2 = ( |
|
611 | 608 | not forcebundle1 |
|
612 | 609 | and peer.capable(b'getbundle') |
|
613 | 610 | and peer.capable(b'bundle2') |
|
614 | 611 | ) |
|
615 | 612 | if canbundle2: |
|
616 | 613 | with peer.commandexecutor() as e: |
|
617 | 614 | b2 = e.callcommand( |
|
618 | 615 | b'getbundle', |
|
619 | 616 | { |
|
620 | 617 | b'source': b'incoming', |
|
621 | 618 | b'common': common, |
|
622 | 619 | b'heads': rheads, |
|
623 | 620 | b'bundlecaps': exchange.caps20to10( |
|
624 | 621 | repo, role=b'client' |
|
625 | 622 | ), |
|
626 | 623 | b'cg': True, |
|
627 | 624 | }, |
|
628 | 625 | ).result() |
|
629 | 626 | |
|
630 | 627 | fname = bundle = changegroup.writechunks( |
|
631 | 628 | ui, b2._forwardchunks(), bundlename |
|
632 | 629 | ) |
|
633 | 630 | else: |
|
634 | 631 | if peer.capable(b'getbundle'): |
|
635 | 632 | with peer.commandexecutor() as e: |
|
636 | 633 | cg = e.callcommand( |
|
637 | 634 | b'getbundle', |
|
638 | 635 | { |
|
639 | 636 | b'source': b'incoming', |
|
640 | 637 | b'common': common, |
|
641 | 638 | b'heads': rheads, |
|
642 | 639 | }, |
|
643 | 640 | ).result() |
|
644 | 641 | elif onlyheads is None and not peer.capable(b'changegroupsubset'): |
|
645 | 642 | # compat with older servers when pulling all remote heads |
|
646 | 643 | |
|
647 | 644 | with peer.commandexecutor() as e: |
|
648 | 645 | cg = e.callcommand( |
|
649 | 646 | b'changegroup', |
|
650 | 647 | { |
|
651 | 648 | b'nodes': incoming, |
|
652 | 649 | b'source': b'incoming', |
|
653 | 650 | }, |
|
654 | 651 | ).result() |
|
655 | 652 | |
|
656 | 653 | rheads = None |
|
657 | 654 | else: |
|
658 | 655 | with peer.commandexecutor() as e: |
|
659 | 656 | cg = e.callcommand( |
|
660 | 657 | b'changegroupsubset', |
|
661 | 658 | { |
|
662 | 659 | b'bases': incoming, |
|
663 | 660 | b'heads': rheads, |
|
664 | 661 | b'source': b'incoming', |
|
665 | 662 | }, |
|
666 | 663 | ).result() |
|
667 | 664 | |
|
668 | 665 | if localrepo: |
|
669 | 666 | bundletype = b"HG10BZ" |
|
670 | 667 | else: |
|
671 | 668 | bundletype = b"HG10UN" |
|
672 | 669 | fname = bundle = bundle2.writebundle(ui, cg, bundlename, bundletype) |
|
673 | 670 | # keep written bundle? |
|
674 | 671 | if bundlename: |
|
675 | 672 | bundle = None |
|
676 | 673 | if not localrepo: |
|
677 | 674 | # use the created uncompressed bundlerepo |
|
678 | 675 | localrepo = bundlerepo = makebundlerepository( |
|
679 | 676 | repo.baseui, repo.root, fname |
|
680 | 677 | ) |
|
681 | 678 | |
|
682 | 679 | # this repo contains local and peer now, so filter out local again |
|
683 | 680 | common = repo.heads() |
|
684 | 681 | if localrepo: |
|
685 | 682 | # Part of common may be remotely filtered |
|
686 | 683 | # So use an unfiltered version |
|
687 | 684 | # The discovery process probably need cleanup to avoid that |
|
688 | 685 | localrepo = localrepo.unfiltered() |
|
689 | 686 | |
|
690 | 687 | csets = localrepo.changelog.findmissing(common, rheads) |
|
691 | 688 | |
|
692 | 689 | if bundlerepo: |
|
693 | 690 | reponodes = [ctx.node() for ctx in bundlerepo[bundlerepo.firstnewrev :]] |
|
694 | 691 | |
|
695 | 692 | with peer.commandexecutor() as e: |
|
696 | 693 | remotephases = e.callcommand( |
|
697 | 694 | b'listkeys', |
|
698 | 695 | { |
|
699 | 696 | b'namespace': b'phases', |
|
700 | 697 | }, |
|
701 | 698 | ).result() |
|
702 | 699 | |
|
703 | 700 | pullop = exchange.pulloperation( |
|
704 | 701 | bundlerepo, peer, path=None, heads=reponodes |
|
705 | 702 | ) |
|
706 | 703 | pullop.trmanager = bundletransactionmanager() |
|
707 | 704 | exchange._pullapplyphases(pullop, remotephases) |
|
708 | 705 | |
|
709 | 706 | def cleanup(): |
|
710 | 707 | if bundlerepo: |
|
711 | 708 | bundlerepo.close() |
|
712 | 709 | if bundle: |
|
713 | 710 | os.unlink(bundle) |
|
714 | 711 | peer.close() |
|
715 | 712 | |
|
716 | 713 | return (localrepo, csets, cleanup) |
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