Mercurial > hg
annotate hgext/largefiles/remotestore.py @ 30142:3dcaf1c4e90d
largefiles: use context for file closing
Make the code slightly smaller and safer (and more deeply indented).
author | Mads Kiilerich <madski@unity3d.com> |
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date | Sat, 08 Oct 2016 00:59:41 +0200 |
parents | 0ccab84f9630 |
children | 736f92c44656 |
rev | line source |
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15168 | 1 # Copyright 2010-2011 Fog Creek Software |
2 # Copyright 2010-2011 Unity Technologies | |
3 # | |
4 # This software may be used and distributed according to the terms of the | |
5 # GNU General Public License version 2 or any later version. | |
6 | |
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7 '''remote largefile store; the base class for wirestore''' |
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8 from __future__ import absolute_import |
15168 | 9 |
10 from mercurial.i18n import _ | |
11 | |
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12 from mercurial import ( |
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13 error, |
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14 util, |
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15 wireproto, |
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16 ) |
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17 |
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18 from . import ( |
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19 basestore, |
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20 lfutil, |
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21 localstore, |
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22 ) |
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23 |
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24 urlerr = util.urlerr |
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25 urlreq = util.urlreq |
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26 |
15168 | 27 class remotestore(basestore.basestore): |
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28 '''a largefile store accessed over a network''' |
15168 | 29 def __init__(self, ui, repo, url): |
30 super(remotestore, self).__init__(ui, repo, url) | |
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31 self._lstore = localstore.localstore(self.ui, self.repo, self.repo) |
15168 | 32 |
33 def put(self, source, hash): | |
34 if self.sendfile(source, hash): | |
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35 raise error.Abort( |
15168 | 36 _('remotestore: could not put %s to remote store %s') |
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37 % (source, util.hidepassword(self.url))) |
15168 | 38 self.ui.debug( |
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39 _('remotestore: put %s to remote store %s\n') |
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40 % (source, util.hidepassword(self.url))) |
15168 | 41 |
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42 def exists(self, hashes): |
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43 return dict((h, s == 0) for (h, s) in # dict-from-generator |
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44 self._stat(hashes).iteritems()) |
15168 | 45 |
46 def sendfile(self, filename, hash): | |
47 self.ui.debug('remotestore: sendfile(%s, %s)\n' % (filename, hash)) | |
48 try: | |
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49 with lfutil.httpsendfile(self.ui, filename) as fd: |
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50 return self._put(hash, fd) |
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51 except IOError as e: |
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52 raise error.Abort( |
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53 _('remotestore: could not open file %s: %s') |
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54 % (filename, str(e))) |
15168 | 55 |
56 def _getfile(self, tmpfile, filename, hash): | |
57 try: | |
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58 chunks = self._get(hash) |
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59 except urlerr.httperror as e: |
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60 # 401s get converted to error.Aborts; everything else is fine being |
15168 | 61 # turned into a StoreError |
62 raise basestore.StoreError(filename, hash, self.url, str(e)) | |
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63 except urlerr.urlerror as e: |
15168 | 64 # This usually indicates a connection problem, so don't |
65 # keep trying with the other files... they will probably | |
66 # all fail too. | |
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67 raise error.Abort('%s: %s' % |
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68 (util.hidepassword(self.url), e.reason)) |
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69 except IOError as e: |
15168 | 70 raise basestore.StoreError(filename, hash, self.url, str(e)) |
71 | |
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72 return lfutil.copyandhash(chunks, tmpfile) |
15168 | 73 |
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74 def _hashesavailablelocally(self, hashes): |
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75 existslocallymap = self._lstore.exists(hashes) |
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76 localhashes = [hash for hash in hashes if existslocallymap[hash]] |
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77 return localhashes |
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78 |
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79 def _verifyfiles(self, contents, filestocheck): |
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80 failed = False |
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81 expectedhashes = [expectedhash |
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82 for cset, filename, expectedhash in filestocheck] |
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83 localhashes = self._hashesavailablelocally(expectedhashes) |
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84 stats = self._stat([expectedhash for expectedhash in expectedhashes |
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85 if expectedhash not in localhashes]) |
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86 |
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87 for cset, filename, expectedhash in filestocheck: |
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88 if expectedhash in localhashes: |
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89 filetocheck = (cset, filename, expectedhash) |
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90 verifyresult = self._lstore._verifyfiles(contents, |
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91 [filetocheck]) |
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92 if verifyresult: |
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93 failed = True |
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94 else: |
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95 stat = stats[expectedhash] |
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96 if stat: |
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97 if stat == 1: |
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98 self.ui.warn( |
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99 _('changeset %s: %s: contents differ\n') |
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100 % (cset, filename)) |
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101 failed = True |
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102 elif stat == 2: |
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103 self.ui.warn( |
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104 _('changeset %s: %s missing\n') |
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105 % (cset, filename)) |
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106 failed = True |
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107 else: |
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108 raise RuntimeError('verify failed: unexpected response ' |
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109 'from statlfile (%r)' % stat) |
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110 return failed |
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111 |
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112 def batch(self): |
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113 '''Support for remote batching.''' |
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114 return wireproto.remotebatch(self) |
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115 |
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116 def _put(self, hash, fd): |
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117 '''Put file with the given hash in the remote store.''' |
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118 raise NotImplementedError('abstract method') |
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119 |
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120 def _get(self, hash): |
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121 '''Get file with the given hash from the remote store.''' |
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122 raise NotImplementedError('abstract method') |
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123 |
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124 def _stat(self, hashes): |
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125 '''Get information about availability of files specified by |
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126 hashes in the remote store. Return dictionary mapping hashes |
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127 to return code where 0 means that file is available, other |
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128 values if not.''' |
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129 raise NotImplementedError('abstract method') |