Mercurial > hg
annotate mercurial/statichttprepo.py @ 8296:908c5906091b
util: remove md5
This hash function is broken and should not be used by new code. It is
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author | Martin Geisler <mg@lazybytes.net> |
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date | Mon, 04 May 2009 21:30:39 +0200 |
parents | 46293a0c7e9f |
children | e10e984bea46 |
rev | line source |
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1101 | 1 # statichttprepo.py - simple http repository class for mercurial |
2 # | |
3 # This provides read-only repo access to repositories exported via static http | |
4 # | |
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5 # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> |
1101 | 6 # |
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7 # This software may be used and distributed according to the terms of the |
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8 # GNU General Public License version 2, incorporated herein by reference. |
1101 | 9 |
3891 | 10 from i18n import _ |
7637 | 11 import changelog, byterange, url, error |
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12 import localrepo, manifest, util, store |
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13 import urllib, urllib2, errno |
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14 |
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15 class httprangereader(object): |
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16 def __init__(self, url, opener): |
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17 # we assume opener has HTTPRangeHandler |
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18 self.url = url |
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19 self.pos = 0 |
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20 self.opener = opener |
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21 def seek(self, pos): |
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22 self.pos = pos |
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23 def read(self, bytes=None): |
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24 req = urllib2.Request(self.url) |
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25 end = '' |
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26 if bytes: |
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27 end = self.pos + bytes - 1 |
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28 req.add_header('Range', 'bytes=%d-%s' % (self.pos, end)) |
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29 |
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30 try: |
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31 f = self.opener.open(req) |
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32 data = f.read() |
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33 except urllib2.HTTPError, inst: |
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34 num = inst.code == 404 and errno.ENOENT or None |
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35 raise IOError(num, inst) |
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36 except urllib2.URLError, inst: |
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37 raise IOError(None, inst.reason[1]) |
1101 | 38 |
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39 if bytes: |
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40 data = data[:bytes] |
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41 return data |
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42 |
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43 def build_opener(ui, authinfo): |
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44 # urllib cannot handle URLs with embedded user or passwd |
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45 urlopener = url.opener(ui, authinfo) |
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46 urlopener.add_handler(byterange.HTTPRangeHandler()) |
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47 |
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48 def opener(base): |
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49 """return a function that opens files over http""" |
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50 p = base |
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51 def o(path, mode="r"): |
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52 f = "/".join((p, urllib.quote(path))) |
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53 return httprangereader(f, urlopener) |
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54 return o |
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55 |
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56 return opener |
1101 | 57 |
58 class statichttprepository(localrepo.localrepository): | |
59 def __init__(self, ui, path): | |
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60 self._url = path |
1101 | 61 self.ui = ui |
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62 |
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63 self.path, authinfo = url.getauthinfo(path.rstrip('/') + "/.hg") |
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64 |
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65 opener = build_opener(ui, authinfo) |
1101 | 66 self.opener = opener(self.path) |
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67 |
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68 # find requirements |
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69 try: |
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70 requirements = self.opener("requires").read().splitlines() |
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71 except IOError, inst: |
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72 if inst.errno != errno.ENOENT: |
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73 raise |
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74 # check if it is a non-empty old-style repository |
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75 try: |
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76 self.opener("00changelog.i").read(1) |
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77 except IOError, inst: |
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78 if inst.errno != errno.ENOENT: |
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79 raise |
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80 # we do not care about empty old-style repositories here |
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81 msg = _("'%s' does not appear to be an hg repository") % path |
7637 | 82 raise error.RepoError(msg) |
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83 requirements = [] |
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84 |
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85 # check them |
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86 for r in requirements: |
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87 if r not in self.supported: |
7637 | 88 raise error.RepoError(_("requirement '%s' not supported") % r) |
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89 |
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90 # setup store |
6988 | 91 def pjoin(a, b): |
92 return a + '/' + b | |
93 self.store = store.store(requirements, self.path, opener, pjoin) | |
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94 self.spath = self.store.path |
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95 self.sopener = self.store.opener |
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96 self.sjoin = self.store.join |
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97 |
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98 self.manifest = manifest.manifest(self.sopener) |
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99 self.changelog = changelog.changelog(self.sopener) |
1101 | 100 self.tagscache = None |
101 self.nodetagscache = None | |
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102 self.encodepats = None |
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103 self.decodepats = None |
1101 | 104 |
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105 def url(self): |
7211 | 106 return self._url |
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107 |
1101 | 108 def local(self): |
109 return False | |
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110 |
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111 def lock(self, wait=True): |
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112 raise util.Abort(_('cannot lock static-http repository')) |
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113 |
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114 def instance(ui, path, create): |
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115 if create: |
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116 raise util.Abort(_('cannot create new static-http repository')) |
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117 return statichttprepository(ui, path[7:]) |