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@@ -1,1102 +1,1097 b'' | |||
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1 | 1 | # repair.py - functions for repository repair for mercurial |
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2 | 2 | # |
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3 | 3 | # Copyright 2005, 2006 Chris Mason <mason@suse.com> |
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4 | 4 | # Copyright 2007 Matt Mackall |
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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 | import errno |
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12 | 12 | import hashlib |
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13 | 13 | import stat |
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14 | 14 | import tempfile |
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15 | 15 | |
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16 | 16 | from .i18n import _ |
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17 | 17 | from .node import short |
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18 | 18 | from . import ( |
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19 | 19 | bundle2, |
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20 | 20 | changegroup, |
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21 | 21 | changelog, |
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22 | 22 | error, |
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23 | 23 | exchange, |
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24 | 24 | manifest, |
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25 | 25 | obsolete, |
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26 | 26 | revlog, |
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27 | 27 | scmutil, |
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28 | 28 | util, |
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29 | 29 | vfs as vfsmod, |
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30 | 30 | ) |
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31 | 31 | |
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32 | 32 | def _bundle(repo, bases, heads, node, suffix, compress=True): |
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33 | 33 | """create a bundle with the specified revisions as a backup""" |
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34 | 34 | cgversion = changegroup.safeversion(repo) |
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35 | 35 | |
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36 | 36 | cg = changegroup.changegroupsubset(repo, bases, heads, 'strip', |
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37 | 37 | version=cgversion) |
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38 | 38 | backupdir = "strip-backup" |
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39 | 39 | vfs = repo.vfs |
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40 | 40 | if not vfs.isdir(backupdir): |
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41 | 41 | vfs.mkdir(backupdir) |
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42 | 42 | |
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43 | 43 | # Include a hash of all the nodes in the filename for uniqueness |
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44 | 44 | allcommits = repo.set('%ln::%ln', bases, heads) |
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45 | 45 | allhashes = sorted(c.hex() for c in allcommits) |
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46 | 46 | totalhash = hashlib.sha1(''.join(allhashes)).hexdigest() |
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47 | 47 | name = "%s/%s-%s-%s.hg" % (backupdir, short(node), totalhash[:8], suffix) |
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48 | 48 | |
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49 | 49 | comp = None |
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50 | 50 | if cgversion != '01': |
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51 | 51 | bundletype = "HG20" |
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52 | 52 | if compress: |
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53 | 53 | comp = 'BZ' |
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54 | 54 | elif compress: |
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55 | 55 | bundletype = "HG10BZ" |
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56 | 56 | else: |
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57 | 57 | bundletype = "HG10UN" |
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58 | 58 | return bundle2.writebundle(repo.ui, cg, name, bundletype, vfs, |
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59 | 59 | compression=comp) |
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60 | 60 | |
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61 | 61 | def _collectfiles(repo, striprev): |
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62 | 62 | """find out the filelogs affected by the strip""" |
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63 | 63 | files = set() |
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64 | 64 | |
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65 | 65 | for x in xrange(striprev, len(repo)): |
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66 | 66 | files.update(repo[x].files()) |
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67 | 67 | |
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68 | 68 | return sorted(files) |
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69 | 69 | |
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70 | 70 | def _collectbrokencsets(repo, files, striprev): |
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71 | 71 | """return the changesets which will be broken by the truncation""" |
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72 | 72 | s = set() |
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73 | 73 | def collectone(revlog): |
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74 | 74 | _, brokenset = revlog.getstrippoint(striprev) |
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75 | 75 | s.update([revlog.linkrev(r) for r in brokenset]) |
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76 | 76 | |
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77 | 77 | collectone(repo.manifestlog._revlog) |
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78 | 78 | for fname in files: |
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79 | 79 | collectone(repo.file(fname)) |
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80 | 80 | |
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81 | 81 | return s |
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82 | 82 | |
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83 | 83 | def strip(ui, repo, nodelist, backup=True, topic='backup'): |
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84 | 84 | # This function operates within a transaction of its own, but does |
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85 | 85 | # not take any lock on the repo. |
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86 | 86 | # Simple way to maintain backwards compatibility for this |
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87 | 87 | # argument. |
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88 | 88 | if backup in ['none', 'strip']: |
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89 | 89 | backup = False |
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90 | 90 | |
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91 | 91 | repo = repo.unfiltered() |
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92 | 92 | repo.destroying() |
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93 | 93 | |
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94 | 94 | cl = repo.changelog |
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95 | 95 | # TODO handle undo of merge sets |
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96 | 96 | if isinstance(nodelist, str): |
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97 | 97 | nodelist = [nodelist] |
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98 | 98 | striplist = [cl.rev(node) for node in nodelist] |
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99 | 99 | striprev = min(striplist) |
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100 | 100 | |
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101 | 101 | files = _collectfiles(repo, striprev) |
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102 | 102 | saverevs = _collectbrokencsets(repo, files, striprev) |
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103 | 103 | |
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104 | 104 | # Some revisions with rev > striprev may not be descendants of striprev. |
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105 | 105 | # We have to find these revisions and put them in a bundle, so that |
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106 | 106 | # we can restore them after the truncations. |
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107 | 107 | # To create the bundle we use repo.changegroupsubset which requires |
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108 | 108 | # the list of heads and bases of the set of interesting revisions. |
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109 | 109 | # (head = revision in the set that has no descendant in the set; |
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110 | 110 | # base = revision in the set that has no ancestor in the set) |
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111 | 111 | tostrip = set(striplist) |
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112 | 112 | saveheads = set(saverevs) |
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113 | 113 | for r in cl.revs(start=striprev + 1): |
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114 | 114 | if any(p in tostrip for p in cl.parentrevs(r)): |
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115 | 115 | tostrip.add(r) |
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116 | 116 | |
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117 | 117 | if r not in tostrip: |
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118 | 118 | saverevs.add(r) |
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119 | 119 | saveheads.difference_update(cl.parentrevs(r)) |
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120 | 120 | saveheads.add(r) |
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121 | 121 | saveheads = [cl.node(r) for r in saveheads] |
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122 | 122 | |
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123 | 123 | # compute base nodes |
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124 | 124 | if saverevs: |
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125 | 125 | descendants = set(cl.descendants(saverevs)) |
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126 | 126 | saverevs.difference_update(descendants) |
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127 | 127 | savebases = [cl.node(r) for r in saverevs] |
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128 | 128 | stripbases = [cl.node(r) for r in tostrip] |
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129 | 129 | |
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130 | 130 | # For a set s, max(parents(s) - s) is the same as max(heads(::s - s)), but |
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131 | 131 | # is much faster |
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132 | 132 | newbmtarget = repo.revs('max(parents(%ld) - (%ld))', tostrip, tostrip) |
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133 | 133 | if newbmtarget: |
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134 | 134 | newbmtarget = repo[newbmtarget.first()].node() |
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135 | 135 | else: |
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136 | 136 | newbmtarget = '.' |
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137 | 137 | |
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138 | 138 | bm = repo._bookmarks |
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139 | 139 | updatebm = [] |
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140 | 140 | for m in bm: |
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141 | 141 | rev = repo[bm[m]].rev() |
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142 | 142 | if rev in tostrip: |
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143 | 143 | updatebm.append(m) |
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144 | 144 | |
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145 | 145 | # create a changegroup for all the branches we need to keep |
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146 | 146 | backupfile = None |
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147 | 147 | vfs = repo.vfs |
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148 | 148 | node = nodelist[-1] |
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149 | 149 | if backup: |
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150 | 150 | backupfile = _bundle(repo, stripbases, cl.heads(), node, topic) |
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151 | 151 | repo.ui.status(_("saved backup bundle to %s\n") % |
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152 | 152 | vfs.join(backupfile)) |
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153 | 153 | repo.ui.log("backupbundle", "saved backup bundle to %s\n", |
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154 | 154 | vfs.join(backupfile)) |
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155 | 155 | tmpbundlefile = None |
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156 | 156 | if saveheads: |
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157 | 157 | # do not compress temporary bundle if we remove it from disk later |
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158 | 158 | tmpbundlefile = _bundle(repo, savebases, saveheads, node, 'temp', |
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159 | 159 | compress=False) |
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160 | 160 | |
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161 | 161 | mfst = repo.manifestlog._revlog |
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162 | 162 | |
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163 | 163 | curtr = repo.currenttransaction() |
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164 | 164 | if curtr is not None: |
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165 | 165 | del curtr # avoid carrying reference to transaction for nothing |
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166 | 166 | msg = _('programming error: cannot strip from inside a transaction') |
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167 | 167 | raise error.Abort(msg, hint=_('contact your extension maintainer')) |
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168 | 168 | |
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169 | 169 | try: |
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170 | 170 | with repo.transaction("strip") as tr: |
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171 | 171 | offset = len(tr.entries) |
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172 | 172 | |
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173 | 173 | tr.startgroup() |
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174 | 174 | cl.strip(striprev, tr) |
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175 | 175 | mfst.strip(striprev, tr) |
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176 | 176 | if 'treemanifest' in repo.requirements: # safe but unnecessary |
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177 | 177 | # otherwise |
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178 | 178 | for unencoded, encoded, size in repo.store.datafiles(): |
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179 | 179 | if (unencoded.startswith('meta/') and |
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180 | 180 | unencoded.endswith('00manifest.i')): |
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181 | 181 | dir = unencoded[5:-12] |
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182 | 182 | repo.manifestlog._revlog.dirlog(dir).strip(striprev, tr) |
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183 | 183 | for fn in files: |
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184 | 184 | repo.file(fn).strip(striprev, tr) |
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185 | 185 | tr.endgroup() |
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186 | 186 | |
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187 | 187 | for i in xrange(offset, len(tr.entries)): |
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188 | 188 | file, troffset, ignore = tr.entries[i] |
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189 | 189 | with repo.svfs(file, 'a', checkambig=True) as fp: |
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190 | 190 | fp.truncate(troffset) |
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191 | 191 | if troffset == 0: |
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192 | 192 | repo.store.markremoved(file) |
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193 | 193 | |
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194 | 194 | if tmpbundlefile: |
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195 | 195 | ui.note(_("adding branch\n")) |
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196 | 196 | f = vfs.open(tmpbundlefile, "rb") |
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197 | 197 | gen = exchange.readbundle(ui, f, tmpbundlefile, vfs) |
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198 | 198 | if not repo.ui.verbose: |
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199 | 199 | # silence internal shuffling chatter |
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200 | 200 | repo.ui.pushbuffer() |
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201 | 201 | if isinstance(gen, bundle2.unbundle20): |
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202 | 202 | with repo.transaction('strip') as tr: |
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203 | 203 | tr.hookargs = {'source': 'strip', |
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204 | 204 | 'url': 'bundle:' + vfs.join(tmpbundlefile)} |
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205 | 205 | bundle2.applybundle(repo, gen, tr, source='strip', |
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206 | 206 | url='bundle:' + vfs.join(tmpbundlefile)) |
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207 | 207 | else: |
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208 | 208 | gen.apply(repo, 'strip', 'bundle:' + vfs.join(tmpbundlefile), |
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209 | 209 | True) |
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210 | 210 | if not repo.ui.verbose: |
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211 | 211 | repo.ui.popbuffer() |
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212 | 212 | f.close() |
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213 | 213 | repo._phasecache.invalidate() |
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214 | 214 | |
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215 | 215 | for m in updatebm: |
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216 | 216 | bm[m] = repo[newbmtarget].node() |
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217 | lock = tr = None | |
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218 | try: | |
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219 | lock = repo.lock() | |
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220 | tr = repo.transaction('repair') | |
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221 | bm.recordchange(tr) | |
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222 | tr.close() | |
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223 | finally: | |
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224 | tr.release() | |
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225 | lock.release() | |
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217 | ||
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218 | with repo.lock(): | |
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219 | with repo.transaction('repair') as tr: | |
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220 | bm.recordchange(tr) | |
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226 | 221 | |
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227 | 222 | # remove undo files |
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228 | 223 | for undovfs, undofile in repo.undofiles(): |
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229 | 224 | try: |
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230 | 225 | undovfs.unlink(undofile) |
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231 | 226 | except OSError as e: |
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232 | 227 | if e.errno != errno.ENOENT: |
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233 | 228 | ui.warn(_('error removing %s: %s\n') % |
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234 | 229 | (undovfs.join(undofile), str(e))) |
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235 | 230 | |
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236 | 231 | except: # re-raises |
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237 | 232 | if backupfile: |
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238 | 233 | ui.warn(_("strip failed, backup bundle stored in '%s'\n") |
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239 | 234 | % vfs.join(backupfile)) |
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240 | 235 | if tmpbundlefile: |
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241 | 236 | ui.warn(_("strip failed, unrecovered changes stored in '%s'\n") |
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242 | 237 | % vfs.join(tmpbundlefile)) |
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243 | 238 | ui.warn(_("(fix the problem, then recover the changesets with " |
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244 | 239 | "\"hg unbundle '%s'\")\n") % vfs.join(tmpbundlefile)) |
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245 | 240 | raise |
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246 | 241 | else: |
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247 | 242 | if tmpbundlefile: |
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248 | 243 | # Remove temporary bundle only if there were no exceptions |
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249 | 244 | vfs.unlink(tmpbundlefile) |
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250 | 245 | |
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251 | 246 | repo.destroyed() |
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252 | 247 | # return the backup file path (or None if 'backup' was False) so |
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253 | 248 | # extensions can use it |
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254 | 249 | return backupfile |
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255 | 250 | |
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256 | 251 | def rebuildfncache(ui, repo): |
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257 | 252 | """Rebuilds the fncache file from repo history. |
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258 | 253 | |
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259 | 254 | Missing entries will be added. Extra entries will be removed. |
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260 | 255 | """ |
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261 | 256 | repo = repo.unfiltered() |
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262 | 257 | |
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263 | 258 | if 'fncache' not in repo.requirements: |
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264 | 259 | ui.warn(_('(not rebuilding fncache because repository does not ' |
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265 | 260 | 'support fncache)\n')) |
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266 | 261 | return |
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267 | 262 | |
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268 | 263 | with repo.lock(): |
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269 | 264 | fnc = repo.store.fncache |
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270 | 265 | # Trigger load of fncache. |
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271 | 266 | if 'irrelevant' in fnc: |
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272 | 267 | pass |
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273 | 268 | |
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274 | 269 | oldentries = set(fnc.entries) |
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275 | 270 | newentries = set() |
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276 | 271 | seenfiles = set() |
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277 | 272 | |
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278 | 273 | repolen = len(repo) |
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279 | 274 | for rev in repo: |
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280 | 275 | ui.progress(_('rebuilding'), rev, total=repolen, |
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281 | 276 | unit=_('changesets')) |
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282 | 277 | |
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283 | 278 | ctx = repo[rev] |
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284 | 279 | for f in ctx.files(): |
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285 | 280 | # This is to minimize I/O. |
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286 | 281 | if f in seenfiles: |
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287 | 282 | continue |
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288 | 283 | seenfiles.add(f) |
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289 | 284 | |
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290 | 285 | i = 'data/%s.i' % f |
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291 | 286 | d = 'data/%s.d' % f |
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292 | 287 | |
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293 | 288 | if repo.store._exists(i): |
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294 | 289 | newentries.add(i) |
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295 | 290 | if repo.store._exists(d): |
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296 | 291 | newentries.add(d) |
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297 | 292 | |
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298 | 293 | ui.progress(_('rebuilding'), None) |
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299 | 294 | |
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300 | 295 | if 'treemanifest' in repo.requirements: # safe but unnecessary otherwise |
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301 | 296 | for dir in util.dirs(seenfiles): |
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302 | 297 | i = 'meta/%s/00manifest.i' % dir |
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303 | 298 | d = 'meta/%s/00manifest.d' % dir |
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304 | 299 | |
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305 | 300 | if repo.store._exists(i): |
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306 | 301 | newentries.add(i) |
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307 | 302 | if repo.store._exists(d): |
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308 | 303 | newentries.add(d) |
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309 | 304 | |
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310 | 305 | addcount = len(newentries - oldentries) |
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311 | 306 | removecount = len(oldentries - newentries) |
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312 | 307 | for p in sorted(oldentries - newentries): |
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313 | 308 | ui.write(_('removing %s\n') % p) |
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314 | 309 | for p in sorted(newentries - oldentries): |
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315 | 310 | ui.write(_('adding %s\n') % p) |
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316 | 311 | |
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317 | 312 | if addcount or removecount: |
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318 | 313 | ui.write(_('%d items added, %d removed from fncache\n') % |
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319 | 314 | (addcount, removecount)) |
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320 | 315 | fnc.entries = newentries |
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321 | 316 | fnc._dirty = True |
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322 | 317 | |
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323 | 318 | with repo.transaction('fncache') as tr: |
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324 | 319 | fnc.write(tr) |
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325 | 320 | else: |
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326 | 321 | ui.write(_('fncache already up to date\n')) |
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327 | 322 | |
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328 | 323 | def stripbmrevset(repo, mark): |
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329 | 324 | """ |
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330 | 325 | The revset to strip when strip is called with -B mark |
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331 | 326 | |
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332 | 327 | Needs to live here so extensions can use it and wrap it even when strip is |
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333 | 328 | not enabled or not present on a box. |
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334 | 329 | """ |
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335 | 330 | return repo.revs("ancestors(bookmark(%s)) - " |
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336 | 331 | "ancestors(head() and not bookmark(%s)) - " |
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337 | 332 | "ancestors(bookmark() and not bookmark(%s))", |
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338 | 333 | mark, mark, mark) |
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339 | 334 | |
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340 | 335 | def deleteobsmarkers(obsstore, indices): |
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341 | 336 | """Delete some obsmarkers from obsstore and return how many were deleted |
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342 | 337 | |
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343 | 338 | 'indices' is a list of ints which are the indices |
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344 | 339 | of the markers to be deleted. |
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345 | 340 | |
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346 | 341 | Every invocation of this function completely rewrites the obsstore file, |
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347 | 342 | skipping the markers we want to be removed. The new temporary file is |
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348 | 343 | created, remaining markers are written there and on .close() this file |
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349 | 344 | gets atomically renamed to obsstore, thus guaranteeing consistency.""" |
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350 | 345 | if not indices: |
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351 | 346 | # we don't want to rewrite the obsstore with the same content |
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352 | 347 | return |
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353 | 348 | |
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354 | 349 | left = [] |
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355 | 350 | current = obsstore._all |
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356 | 351 | n = 0 |
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357 | 352 | for i, m in enumerate(current): |
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358 | 353 | if i in indices: |
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359 | 354 | n += 1 |
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360 | 355 | continue |
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361 | 356 | left.append(m) |
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362 | 357 | |
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363 | 358 | newobsstorefile = obsstore.svfs('obsstore', 'w', atomictemp=True) |
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364 | 359 | for bytes in obsolete.encodemarkers(left, True, obsstore._version): |
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365 | 360 | newobsstorefile.write(bytes) |
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366 | 361 | newobsstorefile.close() |
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367 | 362 | return n |
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368 | 363 | |
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369 | 364 | def upgraderequiredsourcerequirements(repo): |
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370 | 365 | """Obtain requirements required to be present to upgrade a repo. |
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371 | 366 | |
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372 | 367 | An upgrade will not be allowed if the repository doesn't have the |
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373 | 368 | requirements returned by this function. |
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374 | 369 | """ |
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375 | 370 | return set([ |
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376 | 371 | # Introduced in Mercurial 0.9.2. |
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377 | 372 | 'revlogv1', |
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378 | 373 | # Introduced in Mercurial 0.9.2. |
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379 | 374 | 'store', |
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380 | 375 | ]) |
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381 | 376 | |
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382 | 377 | def upgradeblocksourcerequirements(repo): |
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383 | 378 | """Obtain requirements that will prevent an upgrade from occurring. |
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384 | 379 | |
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385 | 380 | An upgrade cannot be performed if the source repository contains a |
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386 | 381 | requirements in the returned set. |
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387 | 382 | """ |
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388 | 383 | return set([ |
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389 | 384 | # The upgrade code does not yet support these experimental features. |
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390 | 385 | # This is an artificial limitation. |
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391 | 386 | 'manifestv2', |
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392 | 387 | 'treemanifest', |
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393 | 388 | # This was a precursor to generaldelta and was never enabled by default. |
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394 | 389 | # It should (hopefully) not exist in the wild. |
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395 | 390 | 'parentdelta', |
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396 | 391 | # Upgrade should operate on the actual store, not the shared link. |
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397 | 392 | 'shared', |
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398 | 393 | ]) |
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399 | 394 | |
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400 | 395 | def upgradesupportremovedrequirements(repo): |
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401 | 396 | """Obtain requirements that can be removed during an upgrade. |
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402 | 397 | |
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403 | 398 | If an upgrade were to create a repository that dropped a requirement, |
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404 | 399 | the dropped requirement must appear in the returned set for the upgrade |
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405 | 400 | to be allowed. |
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406 | 401 | """ |
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407 | 402 | return set() |
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408 | 403 | |
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409 | 404 | def upgradesupporteddestrequirements(repo): |
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410 | 405 | """Obtain requirements that upgrade supports in the destination. |
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411 | 406 | |
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412 | 407 | If the result of the upgrade would create requirements not in this set, |
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413 | 408 | the upgrade is disallowed. |
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414 | 409 | |
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415 | 410 | Extensions should monkeypatch this to add their custom requirements. |
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416 | 411 | """ |
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417 | 412 | return set([ |
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418 | 413 | 'dotencode', |
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419 | 414 | 'fncache', |
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420 | 415 | 'generaldelta', |
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421 | 416 | 'revlogv1', |
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422 | 417 | 'store', |
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423 | 418 | ]) |
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424 | 419 | |
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425 | 420 | def upgradeallowednewrequirements(repo): |
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426 | 421 | """Obtain requirements that can be added to a repository during upgrade. |
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427 | 422 | |
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428 | 423 | This is used to disallow proposed requirements from being added when |
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429 | 424 | they weren't present before. |
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430 | 425 | |
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431 | 426 | We use a list of allowed requirement additions instead of a list of known |
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432 | 427 | bad additions because the whitelist approach is safer and will prevent |
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433 | 428 | future, unknown requirements from accidentally being added. |
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434 | 429 | """ |
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435 | 430 | return set([ |
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436 | 431 | 'dotencode', |
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437 | 432 | 'fncache', |
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438 | 433 | 'generaldelta', |
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439 | 434 | ]) |
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440 | 435 | |
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441 | 436 | deficiency = 'deficiency' |
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442 | 437 | optimisation = 'optimization' |
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443 | 438 | |
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444 | 439 | class upgradeimprovement(object): |
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445 | 440 | """Represents an improvement that can be made as part of an upgrade. |
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446 | 441 | |
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447 | 442 | The following attributes are defined on each instance: |
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448 | 443 | |
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449 | 444 | name |
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450 | 445 | Machine-readable string uniquely identifying this improvement. It |
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451 | 446 | will be mapped to an action later in the upgrade process. |
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452 | 447 | |
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453 | 448 | type |
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454 | 449 | Either ``deficiency`` or ``optimisation``. A deficiency is an obvious |
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455 | 450 | problem. An optimization is an action (sometimes optional) that |
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456 | 451 | can be taken to further improve the state of the repository. |
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457 | 452 | |
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458 | 453 | description |
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459 | 454 | Message intended for humans explaining the improvement in more detail, |
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460 | 455 | including the implications of it. For ``deficiency`` types, should be |
|
461 | 456 | worded in the present tense. For ``optimisation`` types, should be |
|
462 | 457 | worded in the future tense. |
|
463 | 458 | |
|
464 | 459 | upgrademessage |
|
465 | 460 | Message intended for humans explaining what an upgrade addressing this |
|
466 | 461 | issue will do. Should be worded in the future tense. |
|
467 | 462 | |
|
468 | 463 | fromdefault (``deficiency`` types only) |
|
469 | 464 | Boolean indicating whether the current (deficient) state deviates |
|
470 | 465 | from Mercurial's default configuration. |
|
471 | 466 | |
|
472 | 467 | fromconfig (``deficiency`` types only) |
|
473 | 468 | Boolean indicating whether the current (deficient) state deviates |
|
474 | 469 | from the current Mercurial configuration. |
|
475 | 470 | """ |
|
476 | 471 | def __init__(self, name, type, description, upgrademessage, **kwargs): |
|
477 | 472 | self.name = name |
|
478 | 473 | self.type = type |
|
479 | 474 | self.description = description |
|
480 | 475 | self.upgrademessage = upgrademessage |
|
481 | 476 | |
|
482 | 477 | for k, v in kwargs.items(): |
|
483 | 478 | setattr(self, k, v) |
|
484 | 479 | |
|
485 | 480 | def upgradefindimprovements(repo): |
|
486 | 481 | """Determine improvements that can be made to the repo during upgrade. |
|
487 | 482 | |
|
488 | 483 | Returns a list of ``upgradeimprovement`` describing repository deficiencies |
|
489 | 484 | and optimizations. |
|
490 | 485 | """ |
|
491 | 486 | # Avoid cycle: cmdutil -> repair -> localrepo -> cmdutil |
|
492 | 487 | from . import localrepo |
|
493 | 488 | |
|
494 | 489 | newreporeqs = localrepo.newreporequirements(repo) |
|
495 | 490 | |
|
496 | 491 | improvements = [] |
|
497 | 492 | |
|
498 | 493 | # We could detect lack of revlogv1 and store here, but they were added |
|
499 | 494 | # in 0.9.2 and we don't support upgrading repos without these |
|
500 | 495 | # requirements, so let's not bother. |
|
501 | 496 | |
|
502 | 497 | if 'fncache' not in repo.requirements: |
|
503 | 498 | improvements.append(upgradeimprovement( |
|
504 | 499 | name='fncache', |
|
505 | 500 | type=deficiency, |
|
506 | 501 | description=_('long and reserved filenames may not work correctly; ' |
|
507 | 502 | 'repository performance is sub-optimal'), |
|
508 | 503 | upgrademessage=_('repository will be more resilient to storing ' |
|
509 | 504 | 'certain paths and performance of certain ' |
|
510 | 505 | 'operations should be improved'), |
|
511 | 506 | fromdefault=True, |
|
512 | 507 | fromconfig='fncache' in newreporeqs)) |
|
513 | 508 | |
|
514 | 509 | if 'dotencode' not in repo.requirements: |
|
515 | 510 | improvements.append(upgradeimprovement( |
|
516 | 511 | name='dotencode', |
|
517 | 512 | type=deficiency, |
|
518 | 513 | description=_('storage of filenames beginning with a period or ' |
|
519 | 514 | 'space may not work correctly'), |
|
520 | 515 | upgrademessage=_('repository will be better able to store files ' |
|
521 | 516 | 'beginning with a space or period'), |
|
522 | 517 | fromdefault=True, |
|
523 | 518 | fromconfig='dotencode' in newreporeqs)) |
|
524 | 519 | |
|
525 | 520 | if 'generaldelta' not in repo.requirements: |
|
526 | 521 | improvements.append(upgradeimprovement( |
|
527 | 522 | name='generaldelta', |
|
528 | 523 | type=deficiency, |
|
529 | 524 | description=_('deltas within internal storage are unable to ' |
|
530 | 525 | 'choose optimal revisions; repository is larger and ' |
|
531 | 526 | 'slower than it could be; interaction with other ' |
|
532 | 527 | 'repositories may require extra network and CPU ' |
|
533 | 528 | 'resources, making "hg push" and "hg pull" slower'), |
|
534 | 529 | upgrademessage=_('repository storage will be able to create ' |
|
535 | 530 | 'optimal deltas; new repository data will be ' |
|
536 | 531 | 'smaller and read times should decrease; ' |
|
537 | 532 | 'interacting with other repositories using this ' |
|
538 | 533 | 'storage model should require less network and ' |
|
539 | 534 | 'CPU resources, making "hg push" and "hg pull" ' |
|
540 | 535 | 'faster'), |
|
541 | 536 | fromdefault=True, |
|
542 | 537 | fromconfig='generaldelta' in newreporeqs)) |
|
543 | 538 | |
|
544 | 539 | # Mercurial 4.0 changed changelogs to not use delta chains. Search for |
|
545 | 540 | # changelogs with deltas. |
|
546 | 541 | cl = repo.changelog |
|
547 | 542 | for rev in cl: |
|
548 | 543 | chainbase = cl.chainbase(rev) |
|
549 | 544 | if chainbase != rev: |
|
550 | 545 | improvements.append(upgradeimprovement( |
|
551 | 546 | name='removecldeltachain', |
|
552 | 547 | type=deficiency, |
|
553 | 548 | description=_('changelog storage is using deltas instead of ' |
|
554 | 549 | 'raw entries; changelog reading and any ' |
|
555 | 550 | 'operation relying on changelog data are slower ' |
|
556 | 551 | 'than they could be'), |
|
557 | 552 | upgrademessage=_('changelog storage will be reformated to ' |
|
558 | 553 | 'store raw entries; changelog reading will be ' |
|
559 | 554 | 'faster; changelog size may be reduced'), |
|
560 | 555 | fromdefault=True, |
|
561 | 556 | fromconfig=True)) |
|
562 | 557 | break |
|
563 | 558 | |
|
564 | 559 | # Now for the optimizations. |
|
565 | 560 | |
|
566 | 561 | # These are unconditionally added. There is logic later that figures out |
|
567 | 562 | # which ones to apply. |
|
568 | 563 | |
|
569 | 564 | improvements.append(upgradeimprovement( |
|
570 | 565 | name='redeltaparent', |
|
571 | 566 | type=optimisation, |
|
572 | 567 | description=_('deltas within internal storage will be recalculated to ' |
|
573 | 568 | 'choose an optimal base revision where this was not ' |
|
574 | 569 | 'already done; the size of the repository may shrink and ' |
|
575 | 570 | 'various operations may become faster; the first time ' |
|
576 | 571 | 'this optimization is performed could slow down upgrade ' |
|
577 | 572 | 'execution considerably; subsequent invocations should ' |
|
578 | 573 | 'not run noticeably slower'), |
|
579 | 574 | upgrademessage=_('deltas within internal storage will choose a new ' |
|
580 | 575 | 'base revision if needed'))) |
|
581 | 576 | |
|
582 | 577 | improvements.append(upgradeimprovement( |
|
583 | 578 | name='redeltamultibase', |
|
584 | 579 | type=optimisation, |
|
585 | 580 | description=_('deltas within internal storage will be recalculated ' |
|
586 | 581 | 'against multiple base revision and the smallest ' |
|
587 | 582 | 'difference will be used; the size of the repository may ' |
|
588 | 583 | 'shrink significantly when there are many merges; this ' |
|
589 | 584 | 'optimization will slow down execution in proportion to ' |
|
590 | 585 | 'the number of merges in the repository and the amount ' |
|
591 | 586 | 'of files in the repository; this slow down should not ' |
|
592 | 587 | 'be significant unless there are tens of thousands of ' |
|
593 | 588 | 'files and thousands of merges'), |
|
594 | 589 | upgrademessage=_('deltas within internal storage will choose an ' |
|
595 | 590 | 'optimal delta by computing deltas against multiple ' |
|
596 | 591 | 'parents; may slow down execution time ' |
|
597 | 592 | 'significantly'))) |
|
598 | 593 | |
|
599 | 594 | improvements.append(upgradeimprovement( |
|
600 | 595 | name='redeltaall', |
|
601 | 596 | type=optimisation, |
|
602 | 597 | description=_('deltas within internal storage will always be ' |
|
603 | 598 | 'recalculated without reusing prior deltas; this will ' |
|
604 | 599 | 'likely make execution run several times slower; this ' |
|
605 | 600 | 'optimization is typically not needed'), |
|
606 | 601 | upgrademessage=_('deltas within internal storage will be fully ' |
|
607 | 602 | 'recomputed; this will likely drastically slow down ' |
|
608 | 603 | 'execution time'))) |
|
609 | 604 | |
|
610 | 605 | return improvements |
|
611 | 606 | |
|
612 | 607 | def upgradedetermineactions(repo, improvements, sourcereqs, destreqs, |
|
613 | 608 | optimize): |
|
614 | 609 | """Determine upgrade actions that will be performed. |
|
615 | 610 | |
|
616 | 611 | Given a list of improvements as returned by ``upgradefindimprovements``, |
|
617 | 612 | determine the list of upgrade actions that will be performed. |
|
618 | 613 | |
|
619 | 614 | The role of this function is to filter improvements if needed, apply |
|
620 | 615 | recommended optimizations from the improvements list that make sense, |
|
621 | 616 | etc. |
|
622 | 617 | |
|
623 | 618 | Returns a list of action names. |
|
624 | 619 | """ |
|
625 | 620 | newactions = [] |
|
626 | 621 | |
|
627 | 622 | knownreqs = upgradesupporteddestrequirements(repo) |
|
628 | 623 | |
|
629 | 624 | for i in improvements: |
|
630 | 625 | name = i.name |
|
631 | 626 | |
|
632 | 627 | # If the action is a requirement that doesn't show up in the |
|
633 | 628 | # destination requirements, prune the action. |
|
634 | 629 | if name in knownreqs and name not in destreqs: |
|
635 | 630 | continue |
|
636 | 631 | |
|
637 | 632 | if i.type == deficiency: |
|
638 | 633 | newactions.append(name) |
|
639 | 634 | |
|
640 | 635 | newactions.extend(o for o in sorted(optimize) if o not in newactions) |
|
641 | 636 | |
|
642 | 637 | # FUTURE consider adding some optimizations here for certain transitions. |
|
643 | 638 | # e.g. adding generaldelta could schedule parent redeltas. |
|
644 | 639 | |
|
645 | 640 | return newactions |
|
646 | 641 | |
|
647 | 642 | def _revlogfrompath(repo, path): |
|
648 | 643 | """Obtain a revlog from a repo path. |
|
649 | 644 | |
|
650 | 645 | An instance of the appropriate class is returned. |
|
651 | 646 | """ |
|
652 | 647 | if path == '00changelog.i': |
|
653 | 648 | return changelog.changelog(repo.svfs) |
|
654 | 649 | elif path.endswith('00manifest.i'): |
|
655 | 650 | mandir = path[:-len('00manifest.i')] |
|
656 | 651 | return manifest.manifestrevlog(repo.svfs, dir=mandir) |
|
657 | 652 | else: |
|
658 | 653 | # Filelogs don't do anything special with settings. So we can use a |
|
659 | 654 | # vanilla revlog. |
|
660 | 655 | return revlog.revlog(repo.svfs, path) |
|
661 | 656 | |
|
662 | 657 | def _copyrevlogs(ui, srcrepo, dstrepo, tr, deltareuse, aggressivemergedeltas): |
|
663 | 658 | """Copy revlogs between 2 repos.""" |
|
664 | 659 | revcount = 0 |
|
665 | 660 | srcsize = 0 |
|
666 | 661 | srcrawsize = 0 |
|
667 | 662 | dstsize = 0 |
|
668 | 663 | fcount = 0 |
|
669 | 664 | frevcount = 0 |
|
670 | 665 | fsrcsize = 0 |
|
671 | 666 | frawsize = 0 |
|
672 | 667 | fdstsize = 0 |
|
673 | 668 | mcount = 0 |
|
674 | 669 | mrevcount = 0 |
|
675 | 670 | msrcsize = 0 |
|
676 | 671 | mrawsize = 0 |
|
677 | 672 | mdstsize = 0 |
|
678 | 673 | crevcount = 0 |
|
679 | 674 | csrcsize = 0 |
|
680 | 675 | crawsize = 0 |
|
681 | 676 | cdstsize = 0 |
|
682 | 677 | |
|
683 | 678 | # Perform a pass to collect metadata. This validates we can open all |
|
684 | 679 | # source files and allows a unified progress bar to be displayed. |
|
685 | 680 | for unencoded, encoded, size in srcrepo.store.walk(): |
|
686 | 681 | if unencoded.endswith('.d'): |
|
687 | 682 | continue |
|
688 | 683 | |
|
689 | 684 | rl = _revlogfrompath(srcrepo, unencoded) |
|
690 | 685 | revcount += len(rl) |
|
691 | 686 | |
|
692 | 687 | datasize = 0 |
|
693 | 688 | rawsize = 0 |
|
694 | 689 | idx = rl.index |
|
695 | 690 | for rev in rl: |
|
696 | 691 | e = idx[rev] |
|
697 | 692 | datasize += e[1] |
|
698 | 693 | rawsize += e[2] |
|
699 | 694 | |
|
700 | 695 | srcsize += datasize |
|
701 | 696 | srcrawsize += rawsize |
|
702 | 697 | |
|
703 | 698 | # This is for the separate progress bars. |
|
704 | 699 | if isinstance(rl, changelog.changelog): |
|
705 | 700 | crevcount += len(rl) |
|
706 | 701 | csrcsize += datasize |
|
707 | 702 | crawsize += rawsize |
|
708 | 703 | elif isinstance(rl, manifest.manifestrevlog): |
|
709 | 704 | mcount += 1 |
|
710 | 705 | mrevcount += len(rl) |
|
711 | 706 | msrcsize += datasize |
|
712 | 707 | mrawsize += rawsize |
|
713 | 708 | elif isinstance(rl, revlog.revlog): |
|
714 | 709 | fcount += 1 |
|
715 | 710 | frevcount += len(rl) |
|
716 | 711 | fsrcsize += datasize |
|
717 | 712 | frawsize += rawsize |
|
718 | 713 | |
|
719 | 714 | if not revcount: |
|
720 | 715 | return |
|
721 | 716 | |
|
722 | 717 | ui.write(_('migrating %d total revisions (%d in filelogs, %d in manifests, ' |
|
723 | 718 | '%d in changelog)\n') % |
|
724 | 719 | (revcount, frevcount, mrevcount, crevcount)) |
|
725 | 720 | ui.write(_('migrating %s in store; %s tracked data\n') % ( |
|
726 | 721 | (util.bytecount(srcsize), util.bytecount(srcrawsize)))) |
|
727 | 722 | |
|
728 | 723 | # Used to keep track of progress. |
|
729 | 724 | progress = [] |
|
730 | 725 | def oncopiedrevision(rl, rev, node): |
|
731 | 726 | progress[1] += 1 |
|
732 | 727 | srcrepo.ui.progress(progress[0], progress[1], total=progress[2]) |
|
733 | 728 | |
|
734 | 729 | # Do the actual copying. |
|
735 | 730 | # FUTURE this operation can be farmed off to worker processes. |
|
736 | 731 | seen = set() |
|
737 | 732 | for unencoded, encoded, size in srcrepo.store.walk(): |
|
738 | 733 | if unencoded.endswith('.d'): |
|
739 | 734 | continue |
|
740 | 735 | |
|
741 | 736 | oldrl = _revlogfrompath(srcrepo, unencoded) |
|
742 | 737 | newrl = _revlogfrompath(dstrepo, unencoded) |
|
743 | 738 | |
|
744 | 739 | if isinstance(oldrl, changelog.changelog) and 'c' not in seen: |
|
745 | 740 | ui.write(_('finished migrating %d manifest revisions across %d ' |
|
746 | 741 | 'manifests; change in size: %s\n') % |
|
747 | 742 | (mrevcount, mcount, util.bytecount(mdstsize - msrcsize))) |
|
748 | 743 | |
|
749 | 744 | ui.write(_('migrating changelog containing %d revisions ' |
|
750 | 745 | '(%s in store; %s tracked data)\n') % |
|
751 | 746 | (crevcount, util.bytecount(csrcsize), |
|
752 | 747 | util.bytecount(crawsize))) |
|
753 | 748 | seen.add('c') |
|
754 | 749 | progress[:] = [_('changelog revisions'), 0, crevcount] |
|
755 | 750 | elif isinstance(oldrl, manifest.manifestrevlog) and 'm' not in seen: |
|
756 | 751 | ui.write(_('finished migrating %d filelog revisions across %d ' |
|
757 | 752 | 'filelogs; change in size: %s\n') % |
|
758 | 753 | (frevcount, fcount, util.bytecount(fdstsize - fsrcsize))) |
|
759 | 754 | |
|
760 | 755 | ui.write(_('migrating %d manifests containing %d revisions ' |
|
761 | 756 | '(%s in store; %s tracked data)\n') % |
|
762 | 757 | (mcount, mrevcount, util.bytecount(msrcsize), |
|
763 | 758 | util.bytecount(mrawsize))) |
|
764 | 759 | seen.add('m') |
|
765 | 760 | progress[:] = [_('manifest revisions'), 0, mrevcount] |
|
766 | 761 | elif 'f' not in seen: |
|
767 | 762 | ui.write(_('migrating %d filelogs containing %d revisions ' |
|
768 | 763 | '(%s in store; %s tracked data)\n') % |
|
769 | 764 | (fcount, frevcount, util.bytecount(fsrcsize), |
|
770 | 765 | util.bytecount(frawsize))) |
|
771 | 766 | seen.add('f') |
|
772 | 767 | progress[:] = [_('file revisions'), 0, frevcount] |
|
773 | 768 | |
|
774 | 769 | ui.progress(progress[0], progress[1], total=progress[2]) |
|
775 | 770 | |
|
776 | 771 | ui.note(_('cloning %d revisions from %s\n') % (len(oldrl), unencoded)) |
|
777 | 772 | oldrl.clone(tr, newrl, addrevisioncb=oncopiedrevision, |
|
778 | 773 | deltareuse=deltareuse, |
|
779 | 774 | aggressivemergedeltas=aggressivemergedeltas) |
|
780 | 775 | |
|
781 | 776 | datasize = 0 |
|
782 | 777 | idx = newrl.index |
|
783 | 778 | for rev in newrl: |
|
784 | 779 | datasize += idx[rev][1] |
|
785 | 780 | |
|
786 | 781 | dstsize += datasize |
|
787 | 782 | |
|
788 | 783 | if isinstance(newrl, changelog.changelog): |
|
789 | 784 | cdstsize += datasize |
|
790 | 785 | elif isinstance(newrl, manifest.manifestrevlog): |
|
791 | 786 | mdstsize += datasize |
|
792 | 787 | else: |
|
793 | 788 | fdstsize += datasize |
|
794 | 789 | |
|
795 | 790 | ui.progress(progress[0], None) |
|
796 | 791 | |
|
797 | 792 | ui.write(_('finished migrating %d changelog revisions; change in size: ' |
|
798 | 793 | '%s\n') % (crevcount, util.bytecount(cdstsize - csrcsize))) |
|
799 | 794 | |
|
800 | 795 | ui.write(_('finished migrating %d total revisions; total change in store ' |
|
801 | 796 | 'size: %s\n') % (revcount, util.bytecount(dstsize - srcsize))) |
|
802 | 797 | |
|
803 | 798 | def _upgradefilterstorefile(srcrepo, dstrepo, requirements, path, mode, st): |
|
804 | 799 | """Determine whether to copy a store file during upgrade. |
|
805 | 800 | |
|
806 | 801 | This function is called when migrating store files from ``srcrepo`` to |
|
807 | 802 | ``dstrepo`` as part of upgrading a repository. |
|
808 | 803 | |
|
809 | 804 | Args: |
|
810 | 805 | srcrepo: repo we are copying from |
|
811 | 806 | dstrepo: repo we are copying to |
|
812 | 807 | requirements: set of requirements for ``dstrepo`` |
|
813 | 808 | path: store file being examined |
|
814 | 809 | mode: the ``ST_MODE`` file type of ``path`` |
|
815 | 810 | st: ``stat`` data structure for ``path`` |
|
816 | 811 | |
|
817 | 812 | Function should return ``True`` if the file is to be copied. |
|
818 | 813 | """ |
|
819 | 814 | # Skip revlogs. |
|
820 | 815 | if path.endswith(('.i', '.d')): |
|
821 | 816 | return False |
|
822 | 817 | # Skip transaction related files. |
|
823 | 818 | if path.startswith('undo'): |
|
824 | 819 | return False |
|
825 | 820 | # Only copy regular files. |
|
826 | 821 | if mode != stat.S_IFREG: |
|
827 | 822 | return False |
|
828 | 823 | # Skip other skipped files. |
|
829 | 824 | if path in ('lock', 'fncache'): |
|
830 | 825 | return False |
|
831 | 826 | |
|
832 | 827 | return True |
|
833 | 828 | |
|
834 | 829 | def _upgradefinishdatamigration(ui, srcrepo, dstrepo, requirements): |
|
835 | 830 | """Hook point for extensions to perform additional actions during upgrade. |
|
836 | 831 | |
|
837 | 832 | This function is called after revlogs and store files have been copied but |
|
838 | 833 | before the new store is swapped into the original location. |
|
839 | 834 | """ |
|
840 | 835 | |
|
841 | 836 | def _upgraderepo(ui, srcrepo, dstrepo, requirements, actions): |
|
842 | 837 | """Do the low-level work of upgrading a repository. |
|
843 | 838 | |
|
844 | 839 | The upgrade is effectively performed as a copy between a source |
|
845 | 840 | repository and a temporary destination repository. |
|
846 | 841 | |
|
847 | 842 | The source repository is unmodified for as long as possible so the |
|
848 | 843 | upgrade can abort at any time without causing loss of service for |
|
849 | 844 | readers and without corrupting the source repository. |
|
850 | 845 | """ |
|
851 | 846 | assert srcrepo.currentwlock() |
|
852 | 847 | assert dstrepo.currentwlock() |
|
853 | 848 | |
|
854 | 849 | ui.write(_('(it is safe to interrupt this process any time before ' |
|
855 | 850 | 'data migration completes)\n')) |
|
856 | 851 | |
|
857 | 852 | if 'redeltaall' in actions: |
|
858 | 853 | deltareuse = revlog.revlog.DELTAREUSENEVER |
|
859 | 854 | elif 'redeltaparent' in actions: |
|
860 | 855 | deltareuse = revlog.revlog.DELTAREUSESAMEREVS |
|
861 | 856 | elif 'redeltamultibase' in actions: |
|
862 | 857 | deltareuse = revlog.revlog.DELTAREUSESAMEREVS |
|
863 | 858 | else: |
|
864 | 859 | deltareuse = revlog.revlog.DELTAREUSEALWAYS |
|
865 | 860 | |
|
866 | 861 | with dstrepo.transaction('upgrade') as tr: |
|
867 | 862 | _copyrevlogs(ui, srcrepo, dstrepo, tr, deltareuse, |
|
868 | 863 | 'redeltamultibase' in actions) |
|
869 | 864 | |
|
870 | 865 | # Now copy other files in the store directory. |
|
871 | 866 | for p, kind, st in srcrepo.store.vfs.readdir('', stat=True): |
|
872 | 867 | if not _upgradefilterstorefile(srcrepo, dstrepo, requirements, |
|
873 | 868 | p, kind, st): |
|
874 | 869 | continue |
|
875 | 870 | |
|
876 | 871 | srcrepo.ui.write(_('copying %s\n') % p) |
|
877 | 872 | src = srcrepo.store.vfs.join(p) |
|
878 | 873 | dst = dstrepo.store.vfs.join(p) |
|
879 | 874 | util.copyfile(src, dst, copystat=True) |
|
880 | 875 | |
|
881 | 876 | _upgradefinishdatamigration(ui, srcrepo, dstrepo, requirements) |
|
882 | 877 | |
|
883 | 878 | ui.write(_('data fully migrated to temporary repository\n')) |
|
884 | 879 | |
|
885 | 880 | backuppath = tempfile.mkdtemp(prefix='upgradebackup.', dir=srcrepo.path) |
|
886 | 881 | backupvfs = vfsmod.vfs(backuppath) |
|
887 | 882 | |
|
888 | 883 | # Make a backup of requires file first, as it is the first to be modified. |
|
889 | 884 | util.copyfile(srcrepo.vfs.join('requires'), backupvfs.join('requires')) |
|
890 | 885 | |
|
891 | 886 | # We install an arbitrary requirement that clients must not support |
|
892 | 887 | # as a mechanism to lock out new clients during the data swap. This is |
|
893 | 888 | # better than allowing a client to continue while the repository is in |
|
894 | 889 | # an inconsistent state. |
|
895 | 890 | ui.write(_('marking source repository as being upgraded; clients will be ' |
|
896 | 891 | 'unable to read from repository\n')) |
|
897 | 892 | scmutil.writerequires(srcrepo.vfs, |
|
898 | 893 | srcrepo.requirements | set(['upgradeinprogress'])) |
|
899 | 894 | |
|
900 | 895 | ui.write(_('starting in-place swap of repository data\n')) |
|
901 | 896 | ui.write(_('replaced files will be backed up at %s\n') % |
|
902 | 897 | backuppath) |
|
903 | 898 | |
|
904 | 899 | # Now swap in the new store directory. Doing it as a rename should make |
|
905 | 900 | # the operation nearly instantaneous and atomic (at least in well-behaved |
|
906 | 901 | # environments). |
|
907 | 902 | ui.write(_('replacing store...\n')) |
|
908 | 903 | tstart = util.timer() |
|
909 | 904 | util.rename(srcrepo.spath, backupvfs.join('store')) |
|
910 | 905 | util.rename(dstrepo.spath, srcrepo.spath) |
|
911 | 906 | elapsed = util.timer() - tstart |
|
912 | 907 | ui.write(_('store replacement complete; repository was inconsistent for ' |
|
913 | 908 | '%0.1fs\n') % elapsed) |
|
914 | 909 | |
|
915 | 910 | # We first write the requirements file. Any new requirements will lock |
|
916 | 911 | # out legacy clients. |
|
917 | 912 | ui.write(_('finalizing requirements file and making repository readable ' |
|
918 | 913 | 'again\n')) |
|
919 | 914 | scmutil.writerequires(srcrepo.vfs, requirements) |
|
920 | 915 | |
|
921 | 916 | # The lock file from the old store won't be removed because nothing has a |
|
922 | 917 | # reference to its new location. So clean it up manually. Alternatively, we |
|
923 | 918 | # could update srcrepo.svfs and other variables to point to the new |
|
924 | 919 | # location. This is simpler. |
|
925 | 920 | backupvfs.unlink('store/lock') |
|
926 | 921 | |
|
927 | 922 | return backuppath |
|
928 | 923 | |
|
929 | 924 | def upgraderepo(ui, repo, run=False, optimize=None): |
|
930 | 925 | """Upgrade a repository in place.""" |
|
931 | 926 | # Avoid cycle: cmdutil -> repair -> localrepo -> cmdutil |
|
932 | 927 | from . import localrepo |
|
933 | 928 | |
|
934 | 929 | optimize = set(optimize or []) |
|
935 | 930 | repo = repo.unfiltered() |
|
936 | 931 | |
|
937 | 932 | # Ensure the repository can be upgraded. |
|
938 | 933 | missingreqs = upgraderequiredsourcerequirements(repo) - repo.requirements |
|
939 | 934 | if missingreqs: |
|
940 | 935 | raise error.Abort(_('cannot upgrade repository; requirement ' |
|
941 | 936 | 'missing: %s') % _(', ').join(sorted(missingreqs))) |
|
942 | 937 | |
|
943 | 938 | blockedreqs = upgradeblocksourcerequirements(repo) & repo.requirements |
|
944 | 939 | if blockedreqs: |
|
945 | 940 | raise error.Abort(_('cannot upgrade repository; unsupported source ' |
|
946 | 941 | 'requirement: %s') % |
|
947 | 942 | _(', ').join(sorted(blockedreqs))) |
|
948 | 943 | |
|
949 | 944 | # FUTURE there is potentially a need to control the wanted requirements via |
|
950 | 945 | # command arguments or via an extension hook point. |
|
951 | 946 | newreqs = localrepo.newreporequirements(repo) |
|
952 | 947 | |
|
953 | 948 | noremovereqs = (repo.requirements - newreqs - |
|
954 | 949 | upgradesupportremovedrequirements(repo)) |
|
955 | 950 | if noremovereqs: |
|
956 | 951 | raise error.Abort(_('cannot upgrade repository; requirement would be ' |
|
957 | 952 | 'removed: %s') % _(', ').join(sorted(noremovereqs))) |
|
958 | 953 | |
|
959 | 954 | noaddreqs = (newreqs - repo.requirements - |
|
960 | 955 | upgradeallowednewrequirements(repo)) |
|
961 | 956 | if noaddreqs: |
|
962 | 957 | raise error.Abort(_('cannot upgrade repository; do not support adding ' |
|
963 | 958 | 'requirement: %s') % |
|
964 | 959 | _(', ').join(sorted(noaddreqs))) |
|
965 | 960 | |
|
966 | 961 | unsupportedreqs = newreqs - upgradesupporteddestrequirements(repo) |
|
967 | 962 | if unsupportedreqs: |
|
968 | 963 | raise error.Abort(_('cannot upgrade repository; do not support ' |
|
969 | 964 | 'destination requirement: %s') % |
|
970 | 965 | _(', ').join(sorted(unsupportedreqs))) |
|
971 | 966 | |
|
972 | 967 | # Find and validate all improvements that can be made. |
|
973 | 968 | improvements = upgradefindimprovements(repo) |
|
974 | 969 | for i in improvements: |
|
975 | 970 | if i.type not in (deficiency, optimisation): |
|
976 | 971 | raise error.Abort(_('unexpected improvement type %s for %s') % ( |
|
977 | 972 | i.type, i.name)) |
|
978 | 973 | |
|
979 | 974 | # Validate arguments. |
|
980 | 975 | unknownoptimize = optimize - set(i.name for i in improvements |
|
981 | 976 | if i.type == optimisation) |
|
982 | 977 | if unknownoptimize: |
|
983 | 978 | raise error.Abort(_('unknown optimization action requested: %s') % |
|
984 | 979 | ', '.join(sorted(unknownoptimize)), |
|
985 | 980 | hint=_('run without arguments to see valid ' |
|
986 | 981 | 'optimizations')) |
|
987 | 982 | |
|
988 | 983 | actions = upgradedetermineactions(repo, improvements, repo.requirements, |
|
989 | 984 | newreqs, optimize) |
|
990 | 985 | |
|
991 | 986 | def printrequirements(): |
|
992 | 987 | ui.write(_('requirements\n')) |
|
993 | 988 | ui.write(_(' preserved: %s\n') % |
|
994 | 989 | _(', ').join(sorted(newreqs & repo.requirements))) |
|
995 | 990 | |
|
996 | 991 | if repo.requirements - newreqs: |
|
997 | 992 | ui.write(_(' removed: %s\n') % |
|
998 | 993 | _(', ').join(sorted(repo.requirements - newreqs))) |
|
999 | 994 | |
|
1000 | 995 | if newreqs - repo.requirements: |
|
1001 | 996 | ui.write(_(' added: %s\n') % |
|
1002 | 997 | _(', ').join(sorted(newreqs - repo.requirements))) |
|
1003 | 998 | |
|
1004 | 999 | ui.write('\n') |
|
1005 | 1000 | |
|
1006 | 1001 | def printupgradeactions(): |
|
1007 | 1002 | for action in actions: |
|
1008 | 1003 | for i in improvements: |
|
1009 | 1004 | if i.name == action: |
|
1010 | 1005 | ui.write('%s\n %s\n\n' % |
|
1011 | 1006 | (i.name, i.upgrademessage)) |
|
1012 | 1007 | |
|
1013 | 1008 | if not run: |
|
1014 | 1009 | fromdefault = [] |
|
1015 | 1010 | fromconfig = [] |
|
1016 | 1011 | optimizations = [] |
|
1017 | 1012 | |
|
1018 | 1013 | for i in improvements: |
|
1019 | 1014 | assert i.type in (deficiency, optimisation) |
|
1020 | 1015 | if i.type == deficiency: |
|
1021 | 1016 | if i.fromdefault: |
|
1022 | 1017 | fromdefault.append(i) |
|
1023 | 1018 | if i.fromconfig: |
|
1024 | 1019 | fromconfig.append(i) |
|
1025 | 1020 | else: |
|
1026 | 1021 | optimizations.append(i) |
|
1027 | 1022 | |
|
1028 | 1023 | if fromdefault or fromconfig: |
|
1029 | 1024 | fromconfignames = set(x.name for x in fromconfig) |
|
1030 | 1025 | onlydefault = [i for i in fromdefault |
|
1031 | 1026 | if i.name not in fromconfignames] |
|
1032 | 1027 | |
|
1033 | 1028 | if fromconfig: |
|
1034 | 1029 | ui.write(_('repository lacks features recommended by ' |
|
1035 | 1030 | 'current config options:\n\n')) |
|
1036 | 1031 | for i in fromconfig: |
|
1037 | 1032 | ui.write('%s\n %s\n\n' % (i.name, i.description)) |
|
1038 | 1033 | |
|
1039 | 1034 | if onlydefault: |
|
1040 | 1035 | ui.write(_('repository lacks features used by the default ' |
|
1041 | 1036 | 'config options:\n\n')) |
|
1042 | 1037 | for i in onlydefault: |
|
1043 | 1038 | ui.write('%s\n %s\n\n' % (i.name, i.description)) |
|
1044 | 1039 | |
|
1045 | 1040 | ui.write('\n') |
|
1046 | 1041 | else: |
|
1047 | 1042 | ui.write(_('(no feature deficiencies found in existing ' |
|
1048 | 1043 | 'repository)\n')) |
|
1049 | 1044 | |
|
1050 | 1045 | ui.write(_('performing an upgrade with "--run" will make the following ' |
|
1051 | 1046 | 'changes:\n\n')) |
|
1052 | 1047 | |
|
1053 | 1048 | printrequirements() |
|
1054 | 1049 | printupgradeactions() |
|
1055 | 1050 | |
|
1056 | 1051 | unusedoptimize = [i for i in improvements |
|
1057 | 1052 | if i.name not in actions and i.type == optimisation] |
|
1058 | 1053 | if unusedoptimize: |
|
1059 | 1054 | ui.write(_('additional optimizations are available by specifying ' |
|
1060 | 1055 | '"--optimize <name>":\n\n')) |
|
1061 | 1056 | for i in unusedoptimize: |
|
1062 | 1057 | ui.write(_('%s\n %s\n\n') % (i.name, i.description)) |
|
1063 | 1058 | return |
|
1064 | 1059 | |
|
1065 | 1060 | # Else we're in the run=true case. |
|
1066 | 1061 | ui.write(_('upgrade will perform the following actions:\n\n')) |
|
1067 | 1062 | printrequirements() |
|
1068 | 1063 | printupgradeactions() |
|
1069 | 1064 | |
|
1070 | 1065 | ui.write(_('beginning upgrade...\n')) |
|
1071 | 1066 | with repo.wlock(): |
|
1072 | 1067 | with repo.lock(): |
|
1073 | 1068 | ui.write(_('repository locked and read-only\n')) |
|
1074 | 1069 | # Our strategy for upgrading the repository is to create a new, |
|
1075 | 1070 | # temporary repository, write data to it, then do a swap of the |
|
1076 | 1071 | # data. There are less heavyweight ways to do this, but it is easier |
|
1077 | 1072 | # to create a new repo object than to instantiate all the components |
|
1078 | 1073 | # (like the store) separately. |
|
1079 | 1074 | tmppath = tempfile.mkdtemp(prefix='upgrade.', dir=repo.path) |
|
1080 | 1075 | backuppath = None |
|
1081 | 1076 | try: |
|
1082 | 1077 | ui.write(_('creating temporary repository to stage migrated ' |
|
1083 | 1078 | 'data: %s\n') % tmppath) |
|
1084 | 1079 | dstrepo = localrepo.localrepository(repo.baseui, |
|
1085 | 1080 | path=tmppath, |
|
1086 | 1081 | create=True) |
|
1087 | 1082 | |
|
1088 | 1083 | with dstrepo.wlock(): |
|
1089 | 1084 | with dstrepo.lock(): |
|
1090 | 1085 | backuppath = _upgraderepo(ui, repo, dstrepo, newreqs, |
|
1091 | 1086 | actions) |
|
1092 | 1087 | |
|
1093 | 1088 | finally: |
|
1094 | 1089 | ui.write(_('removing temporary repository %s\n') % tmppath) |
|
1095 | 1090 | repo.vfs.rmtree(tmppath, forcibly=True) |
|
1096 | 1091 | |
|
1097 | 1092 | if backuppath: |
|
1098 | 1093 | ui.warn(_('copy of old repository backed up at %s\n') % |
|
1099 | 1094 | backuppath) |
|
1100 | 1095 | ui.warn(_('the old repository will not be deleted; remove ' |
|
1101 | 1096 | 'it to free up disk space once the upgraded ' |
|
1102 | 1097 | 'repository is verified\n')) |
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