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annotate hgext/schemes.py @ 10070:9d1195b2f00d stable

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schemes: url parts are counted from 1
author Alexander Solovyov <piranha@piranha.org.ua>
date Mon, 14 Dec 2009 21:21:34 +0200
parents 0c3eeee91c9a
children 25e572394f5c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # Copyright 2009, Alexander Solovyov <piranha@piranha.org.ua>
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2 #
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3 # This software may be used and distributed according to the terms of the
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4 # GNU General Public License version 2, incorporated herein by reference.
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5
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6 """extend schemes with shortcuts to repository swarms
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7
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8 This extension allows you to specify shortcuts for parent URLs with a
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9 lot of repositories to act like a scheme, for example::
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10
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11 [schemes]
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12 py = http://code.python.org/hg/
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13
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14 After that you can use it like::
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15
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16 hg clone py://trunk/
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17
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18 Additionally there is support for some more complex schemas, for
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19 example used by Google Code::
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20
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21 [schemes]
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22 gcode = http://{1}.googlecode.com/hg/
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23
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24 The syntax is taken from Mercurial templates, and you have unlimited
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25 number of variables, starting with ``{1}`` and continuing with
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26 ``{2}``, ``{3}`` and so on. This variables will receive parts of URL
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27 supplied, split by ``/``. Anything not specified as ``{part}`` will be
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28 just appended to an URL.
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29
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30 For convenience, the extension adds these schemes by default::
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31
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32 [schemes]
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33 py = http://hg.python.org/
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34 bb = https://bitbucket.org/
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35 bb+ssh = ssh://hg@bitbucket.org/
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36 gcode = https://{1}.googlecode.com/hg/
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37
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38 You can override a predefined scheme by defining a new scheme with the
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39 same name.
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40 """
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41
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42 import re
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43 from mercurial import hg, templater
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44
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45
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46 class ShortRepository(object):
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47 def __init__(self, url, scheme, templater):
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48 self.scheme = scheme
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49 self.templater = templater
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50 self.url = url
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51 try:
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52 self.parts = max(map(int, re.findall(r'\{(\d+)\}', self.url)))
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53 except ValueError:
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54 self.parts = 0
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55
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56 def __repr__(self):
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57 return '<ShortRepository: %s>' % self.scheme
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58
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59 def instance(self, ui, url, create):
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60 url = url.split('://', 1)[1]
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61 parts = url.split('/', self.parts)
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62 if len(parts) > self.parts:
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63 tail = parts[-1]
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64 parts = parts[:-1]
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65 else:
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66 tail = ''
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67 context = dict((str(i+1), v) for i, v in enumerate(parts))
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68 url = ''.join(self.templater.process(self.url, context)) + tail
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69 return hg._lookup(url).instance(ui, url, create)
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70
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71 schemes = {
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72 'py': 'http://hg.python.org/',
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73 'bb': 'https://bitbucket.org/',
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74 'bb+ssh': 'ssh://hg@bitbucket.org/',
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75 'gcode': 'https://{1}.googlecode.com/hg/'
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76 }
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77
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78 def extsetup(ui):
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79 schemes.update(dict(ui.configitems('schemes')))
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80 t = templater.engine(lambda x: x)
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81 for scheme, url in schemes.items():
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82 hg.schemes[scheme] = ShortRepository(url, scheme, t)