Mercurial > hg
annotate hgext/largefiles/basestore.py @ 51630:513597087b89
branching: merge stable into default
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Mon, 10 Jun 2024 12:12:56 +0200 |
parents | 642e31cb55f0 |
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rev | line source |
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15168 | 1 # Copyright 2009-2010 Gregory P. Ward |
2 # Copyright 2009-2010 Intelerad Medical Systems Incorporated | |
3 # Copyright 2010-2011 Fog Creek Software | |
4 # Copyright 2010-2011 Unity Technologies | |
5 # | |
6 # This software may be used and distributed according to the terms of the | |
7 # GNU General Public License version 2 or any later version. | |
8 | |
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9 '''base class for store implementations and store-related utility code''' |
15168 | 10 |
11 from mercurial.i18n import _ | |
12 | |
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13 from mercurial.node import short |
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14 from mercurial import util |
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15 from mercurial.utils import ( |
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16 urlutil, |
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17 ) |
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18 |
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19 from . import lfutil |
15168 | 20 |
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21 |
15168 | 22 class StoreError(Exception): |
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23 """Raised when there is a problem getting files from or putting |
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24 files to a central store.""" |
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25 |
15168 | 26 def __init__(self, filename, hash, url, detail): |
27 self.filename = filename | |
28 self.hash = hash | |
29 self.url = url | |
30 self.detail = detail | |
31 | |
32 def longmessage(self): | |
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33 return _(b"error getting id %s from url %s for file %s: %s\n") % ( |
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34 self.hash, |
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35 urlutil.hidepassword(self.url), |
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36 self.filename, |
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37 self.detail, |
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38 ) |
15168 | 39 |
40 def __str__(self): | |
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41 return b"%s: %s" % (urlutil.hidepassword(self.url), self.detail) |
15168 | 42 |
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43 |
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44 class basestore: |
15168 | 45 def __init__(self, ui, repo, url): |
46 self.ui = ui | |
47 self.repo = repo | |
48 self.url = url | |
49 | |
50 def put(self, source, hash): | |
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51 '''Put source file into the store so it can be retrieved by hash.''' |
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52 raise NotImplementedError(b'abstract method') |
15168 | 53 |
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54 def exists(self, hashes): |
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55 """Check to see if the store contains the given hashes. Given an |
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56 iterable of hashes it returns a mapping from hash to bool.""" |
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57 raise NotImplementedError(b'abstract method') |
15168 | 58 |
59 def get(self, files): | |
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60 """Get the specified largefiles from the store and write to local |
15168 | 61 files under repo.root. files is a list of (filename, hash) |
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62 tuples. Return (success, missing), lists of files successfully |
15168 | 63 downloaded and those not found in the store. success is a list |
64 of (filename, hash) tuples; missing is a list of filenames that | |
65 we could not get. (The detailed error message will already have | |
66 been presented to the user, so missing is just supplied as a | |
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67 summary.)""" |
15168 | 68 success = [] |
69 missing = [] | |
70 ui = self.ui | |
71 | |
72 at = 0 | |
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73 available = self.exists({hash for (_filename, hash) in files}) |
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74 with ui.makeprogress( |
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75 _(b'getting largefiles'), unit=_(b'files'), total=len(files) |
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76 ) as progress: |
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77 for filename, hash in files: |
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78 progress.update(at) |
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79 at += 1 |
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80 ui.note(_(b'getting %s:%s\n') % (filename, hash)) |
15168 | 81 |
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82 if not available.get(hash): |
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83 ui.warn( |
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84 _(b'%s: largefile %s not available from %s\n') |
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85 % (filename, hash, urlutil.hidepassword(self.url)) |
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86 ) |
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87 missing.append(filename) |
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88 continue |
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89 |
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90 if self._gethash(filename, hash): |
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91 success.append((filename, hash)) |
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92 else: |
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93 missing.append(filename) |
15168 | 94 |
95 return (success, missing) | |
96 | |
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97 def _gethash(self, filename, hash): |
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98 """Get file with the provided hash and store it in the local repo's |
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99 store and in the usercache. |
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100 filename is for informational messages only. |
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101 """ |
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102 util.makedirs(lfutil.storepath(self.repo, b'')) |
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103 storefilename = lfutil.storepath(self.repo, hash) |
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104 |
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105 tmpname = storefilename + b'.tmp' |
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106 with util.atomictempfile( |
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107 tmpname, createmode=self.repo.store.createmode |
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108 ) as tmpfile: |
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109 try: |
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110 gothash = self._getfile(tmpfile, filename, hash) |
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111 except StoreError as err: |
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112 self.ui.warn(err.longmessage()) |
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113 gothash = b"" |
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114 |
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115 if gothash != hash: |
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116 if gothash != b"": |
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117 self.ui.warn( |
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118 _(b'%s: data corruption (expected %s, got %s)\n') |
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119 % (filename, hash, gothash) |
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120 ) |
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121 util.unlink(tmpname) |
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122 return False |
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123 |
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124 util.rename(tmpname, storefilename) |
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125 lfutil.linktousercache(self.repo, hash) |
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126 return True |
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127 |
15168 | 128 def verify(self, revs, contents=False): |
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129 """Verify the existence (and, optionally, contents) of every big |
15168 | 130 file revision referenced by every changeset in revs. |
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131 Return 0 if all is well, non-zero on any errors.""" |
15168 | 132 |
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133 self.ui.status( |
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134 _(b'searching %d changesets for largefiles\n') % len(revs) |
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135 ) |
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136 verified = set() # set of (filename, filenode) tuples |
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137 filestocheck = [] # list of (cset, filename, expectedhash) |
15168 | 138 for rev in revs: |
139 cctx = self.repo[rev] | |
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140 cset = b"%d:%s" % (cctx.rev(), short(cctx.node())) |
15168 | 141 |
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142 for standin in cctx: |
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143 filename = lfutil.splitstandin(standin) |
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144 if filename: |
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145 fctx = cctx[standin] |
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146 key = (filename, fctx.filenode()) |
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147 if key not in verified: |
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148 verified.add(key) |
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149 expectedhash = lfutil.readasstandin(fctx) |
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150 filestocheck.append((cset, filename, expectedhash)) |
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151 |
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152 failed = self._verifyfiles(contents, filestocheck) |
15168 | 153 |
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Na'Tosha Bard <natosha@unity3d.com>
parents:
16154
diff
changeset
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154 numrevs = len(verified) |
42057
566daffc607d
cleanup: use set literals where possible
Martin von Zweigbergk <martinvonz@google.com>
parents:
39390
diff
changeset
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155 numlfiles = len({fname for (fname, fnode) in verified}) |
15168 | 156 if contents: |
18546
fb0e8966a4be
largefiles: verify status should be written as status, not as write
Mads Kiilerich <madski@unity3d.com>
parents:
18489
diff
changeset
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157 self.ui.status( |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
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158 _(b'verified contents of %d revisions of %d largefiles\n') |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42057
diff
changeset
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159 % (numrevs, numlfiles) |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42057
diff
changeset
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160 ) |
15168 | 161 else: |
18546
fb0e8966a4be
largefiles: verify status should be written as status, not as write
Mads Kiilerich <madski@unity3d.com>
parents:
18489
diff
changeset
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162 self.ui.status( |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
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163 _(b'verified existence of %d revisions of %d largefiles\n') |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42057
diff
changeset
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164 % (numrevs, numlfiles) |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42057
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changeset
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165 ) |
15168 | 166 return int(failed) |
167 | |
168 def _getfile(self, tmpfile, filename, hash): | |
45942
89a2afe31e82
formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents:
44452
diff
changeset
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169 """Fetch one revision of one file from the store and write it |
15168 | 170 to tmpfile. Compute the hash of the file on-the-fly as it |
18999
c1b5f9c4d989
largefiles: refactoring - return hex from _getfile and copyandhash
Mads Kiilerich <madski@unity3d.com>
parents:
18731
diff
changeset
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171 downloads and return the hash. Close tmpfile. Raise |
15168 | 172 StoreError if unable to download the file (e.g. it does not |
45942
89a2afe31e82
formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents:
44452
diff
changeset
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173 exist in the store).""" |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
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174 raise NotImplementedError(b'abstract method') |
15168 | 175 |
29067
207c0db08953
largefiles: change basestore._verifyfile to take list of files to check
liscju <piotr.listkiewicz@gmail.com>
parents:
28463
diff
changeset
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176 def _verifyfiles(self, contents, filestocheck): |
45942
89a2afe31e82
formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents:
44452
diff
changeset
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177 """Perform the actual verification of files in the store. |
18574
4db9e31ae605
largefiles: docstrings for verify methods
Mads Kiilerich <mads@kiilerich.com>
parents:
18573
diff
changeset
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178 'contents' controls verification of content hash. |
29067
207c0db08953
largefiles: change basestore._verifyfile to take list of files to check
liscju <piotr.listkiewicz@gmail.com>
parents:
28463
diff
changeset
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179 'filestocheck' is list of files to check. |
207c0db08953
largefiles: change basestore._verifyfile to take list of files to check
liscju <piotr.listkiewicz@gmail.com>
parents:
28463
diff
changeset
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180 Returns _true_ if any problems are found! |
45942
89a2afe31e82
formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents:
44452
diff
changeset
|
181 """ |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
182 raise NotImplementedError(b'abstract method') |