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@@ -1,83 +1,90 b'' | |||
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1 | 1 | # statichttprepo.py - simple http repository class for mercurial |
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2 | 2 | # |
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3 | 3 | # This provides read-only repo access to repositories exported via static http |
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4 | 4 | # |
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5 | 5 | # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> |
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6 | 6 | # |
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7 | 7 | # This software may be used and distributed according to the terms |
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8 | 8 | # of the GNU General Public License, incorporated herein by reference. |
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9 | 9 | |
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10 | 10 | from i18n import _ |
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11 | 11 | import changelog, httprangereader |
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12 | 12 | import repo, localrepo, manifest, util, store |
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13 | 13 | import urllib, urllib2, errno |
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14 | 14 | |
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15 | 15 | class rangereader(httprangereader.httprangereader): |
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16 | 16 | def read(self, size=None): |
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17 | 17 | try: |
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18 | 18 | return httprangereader.httprangereader.read(self, size) |
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19 | 19 | except urllib2.HTTPError, inst: |
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20 | 20 | num = inst.code == 404 and errno.ENOENT or None |
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21 | 21 | raise IOError(num, inst) |
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22 | 22 | except urllib2.URLError, inst: |
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23 | 23 | raise IOError(None, inst.reason[1]) |
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24 | 24 | |
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25 | 25 | def opener(base): |
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26 | 26 | """return a function that opens files over http""" |
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27 | 27 | p = base |
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28 | 28 | def o(path, mode="r"): |
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29 | 29 | f = "/".join((p, urllib.quote(path))) |
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30 | 30 | return rangereader(f) |
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31 | 31 | return o |
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32 | 32 | |
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33 | 33 | class statichttprepository(localrepo.localrepository): |
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34 | 34 | def __init__(self, ui, path): |
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35 | 35 | self._url = path |
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36 | 36 | self.ui = ui |
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37 | 37 | |
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38 | 38 | self.path = path.rstrip('/') + "/.hg" |
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39 | 39 | self.opener = opener(self.path) |
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40 | 40 | |
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41 | 41 | # find requirements |
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42 | 42 | try: |
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43 | 43 | requirements = self.opener("requires").read().splitlines() |
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44 | 44 | except IOError, inst: |
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45 |
if inst.errno |
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45 | if inst.errno != errno.ENOENT: | |
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46 | raise | |
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47 | # check if it is a non-empty old-style repository | |
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48 | try: | |
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49 | self.opener("00changelog.i").read(1) | |
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50 | except IOError, inst: | |
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51 | if inst.errno != errno.ENOENT: | |
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52 | raise | |
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53 | # we do not care about empty old-style repositories here | |
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46 | 54 | msg = _("'%s' does not appear to be an hg repository") % path |
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47 | 55 | raise repo.RepoError(msg) |
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48 | else: | |
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49 | 56 |
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50 | 57 | |
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51 | 58 | # check them |
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52 | 59 | for r in requirements: |
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53 | 60 | if r not in self.supported: |
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54 | 61 | raise repo.RepoError(_("requirement '%s' not supported") % r) |
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55 | 62 | |
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56 | 63 | # setup store |
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57 | 64 | def pjoin(a, b): |
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58 | 65 | return a + '/' + b |
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59 | 66 | self.store = store.store(requirements, self.path, opener, pjoin) |
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60 | 67 | self.spath = self.store.path |
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61 | 68 | self.sopener = self.store.opener |
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62 | 69 | self.sjoin = self.store.join |
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63 | 70 | |
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64 | 71 | self.manifest = manifest.manifest(self.sopener) |
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65 | 72 | self.changelog = changelog.changelog(self.sopener) |
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66 | 73 | self.tagscache = None |
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67 | 74 | self.nodetagscache = None |
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68 | 75 | self.encodepats = None |
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69 | 76 | self.decodepats = None |
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70 | 77 | |
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71 | 78 | def url(self): |
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72 | 79 | return 'static-' + self._url |
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73 | 80 | |
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74 | 81 | def local(self): |
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75 | 82 | return False |
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76 | 83 | |
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77 | 84 | def lock(self, wait=True): |
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78 | 85 | raise util.Abort(_('cannot lock static-http repository')) |
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79 | 86 | |
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80 | 87 | def instance(ui, path, create): |
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81 | 88 | if create: |
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82 | 89 | raise util.Abort(_('cannot create new static-http repository')) |
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83 | 90 | return statichttprepository(ui, path[7:]) |
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