Mercurial > public > mercurial-scm > hg

annotate mercurial/statichttprepo.py @ 3851:8f18e31c4441

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add "requires" file to the repo, specifying the requirements
author Benoit Boissinot <benoit.boissinot@ens-lyon.org>
date Sun, 10 Dec 2006 00:06:59 +0100
parents 630caaf29815
children c0b449154a90
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1 # statichttprepo.py - simple http repository class for mercurial
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2 #
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3 # This provides read-only repo access to repositories exported via static http
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4 #
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5 # Copyright 2005, 2006 Matt Mackall <mpm@selenic.com>
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6 #
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7 # This software may be used and distributed according to the terms
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8 # of the GNU General Public License, incorporated herein by reference.
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9
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10 from demandload import *
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11 from i18n import gettext as _
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12 demandload(globals(), "changelog filelog httprangereader")
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13 demandload(globals(), "localrepo manifest os urllib urllib2 util")
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14
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15 class rangereader(httprangereader.httprangereader):
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16 def read(self, size=None):
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17 try:
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18 return httprangereader.httprangereader.read(self, size)
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19 except urllib2.HTTPError, inst:
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20 raise IOError(None, inst)
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21 except urllib2.URLError, inst:
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22 raise IOError(None, inst.reason[1])
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23
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24 def opener(base):
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25 """return a function that opens files over http"""
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26 p = base
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27 def o(path, mode="r"):
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28 f = "/".join((p, urllib.quote(path)))
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29 return rangereader(f)
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30 return o
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31
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32 class statichttprepository(localrepo.localrepository):
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33 def __init__(self, ui, path):
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34 self._url = path
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35 self.path = (path + "/.hg")
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36 self.spath = self.path
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37 self.ui = ui
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38 self.revlogversion = 0
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39 self.opener = opener(self.path)
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40 # find requirements
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41 try:
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42 requirements = self.opener("requires").read().splitlines()
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43 except IOError:
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44 requirements = []
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45 # check them
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46 for r in requirements:
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47 if r not in self.supported:
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48 raise repo.RepoError(_("requirement '%s' not supported") % r)
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49
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50 # setup store
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51 self.spath = self.path
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52 self.sopener = opener(self.spath)
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53
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54 self.manifest = manifest.manifest(self.sopener)
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55 self.changelog = changelog.changelog(self.sopener)
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56 self.tagscache = None
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57 self.nodetagscache = None
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58 self.encodepats = None
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59 self.decodepats = None
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61 def url(self):
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62 return 'static-' + self._url
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63
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64 def dev(self):
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65 return -1
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66
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67 def local(self):
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68 return False
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70 def instance(ui, path, create):
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71 if create:
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72 raise util.Abort(_('cannot create new static-http repository'))
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73 if path.startswith('old-http:'):
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74 ui.warn(_("old-http:// syntax is deprecated, "
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75 "please use static-http:// instead\n"))
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76 path = path[4:]
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77 else:
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78 path = path[7:]
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79 return statichttprepository(ui, path)