Mercurial > public > mercurial-scm > hg-stable

annotate hgext/schemes.py @ 48578:28f0092ec89f

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exchange: add fast path for subrepo check on push Try to check if .hgsub and .hgsubstate exist at all before looking for them in every changeset to be pushed. The latter can be quite expensive for large repositories and the existance check is almost free. Differential Revision: https://phab.mercurial-scm.org/D11956
author Joerg Sonnenberger <joerg@bec.de>
date Mon, 03 Jan 2022 01:09:56 +0100
parents ffd3e823a7e5
children 6000f5b25c9b
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 or any later version.
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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 kiln = https://{1}.kilnhg.com/Repo/
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38
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39 You can override a predefined scheme by defining a new scheme with the
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40 same name.
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41 """
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42 from __future__ import absolute_import
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43
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44 import os
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45 import re
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46
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47 from mercurial.i18n import _
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48 from mercurial import (
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49 error,
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50 extensions,
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51 hg,
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52 pycompat,
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53 registrar,
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54 templater,
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55 )
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56 from mercurial.utils import (
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57 urlutil,
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58 )
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59
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60 cmdtable = {}
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61 command = registrar.command(cmdtable)
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62 # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for
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63 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
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64 # be specifying the version(s) of Mercurial they are tested with, or
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65 # leave the attribute unspecified.
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66 testedwith = b'ships-with-hg-core'
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67
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68 _partre = re.compile(br'{(\d+)\}')
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69
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70
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71 class ShortRepository(object):
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72 def __init__(self, url, scheme, templater):
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73 self.scheme = scheme
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74 self.templater = templater
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75 self.url = url
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76 try:
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77 self.parts = max(map(int, _partre.findall(self.url)))
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78 except ValueError:
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79 self.parts = 0
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80
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81 def __repr__(self):
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82 return b'<ShortRepository: %s>' % self.scheme
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83
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84 def instance(self, ui, url, create, intents=None, createopts=None):
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85 url = self.resolve(url)
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86 return hg._peerlookup(url).instance(
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87 ui, url, create, intents=intents, createopts=createopts
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88 )
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89
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90 def resolve(self, url):
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91 # Should this use the urlutil.url class, or is manual parsing better?
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92 try:
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93 url = url.split(b'://', 1)[1]
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94 except IndexError:
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95 raise error.Abort(_(b"no '://' in scheme url '%s'") % url)
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96 parts = url.split(b'/', self.parts)
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97 if len(parts) > self.parts:
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98 tail = parts[-1]
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99 parts = parts[:-1]
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100 else:
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101 tail = b''
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102 context = {b'%d' % (i + 1): v for i, v in enumerate(parts)}
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103 return b''.join(self.templater.process(self.url, context)) + tail
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104
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105
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106 def hasdriveletter(orig, path):
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107 if path:
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108 for scheme in schemes:
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109 if path.startswith(scheme + b':'):
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110 return False
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111 return orig(path)
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112
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113
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114 schemes = {
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115 b'py': b'http://hg.python.org/',
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116 b'bb': b'https://bitbucket.org/',
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117 b'bb+ssh': b'ssh://hg@bitbucket.org/',
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118 b'gcode': b'https://{1}.googlecode.com/hg/',
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119 b'kiln': b'https://{1}.kilnhg.com/Repo/',
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120 }
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121
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122
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123 def extsetup(ui):
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124 schemes.update(dict(ui.configitems(b'schemes')))
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125 t = templater.engine(templater.parse)
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126 for scheme, url in schemes.items():
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127 if (
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128 pycompat.iswindows
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129 and len(scheme) == 1
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130 and scheme.isalpha()
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131 and os.path.exists(b'%s:\\' % scheme)
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132 ):
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133 raise error.Abort(
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134 _(
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135 b'custom scheme %s:// conflicts with drive '
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136 b'letter %s:\\\n'
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137 )
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138 % (scheme, scheme.upper())
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139 )
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140 hg.schemes[scheme] = ShortRepository(url, scheme, t)
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141
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 45957
diff changeset
142 extensions.wrapfunction(urlutil, b'hasdriveletter', hasdriveletter)
27982
bf1d5c223ac0 schemes: add debugexpandscheme command, resolving a scheme to canonical form
Jason R. Coombs <jaraco@jaraco.com>
parents: 27981
diff changeset
143
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 39565
diff changeset
144
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
145 @command(b'debugexpandscheme', norepo=True)
27982
bf1d5c223ac0 schemes: add debugexpandscheme command, resolving a scheme to canonical form
Jason R. Coombs <jaraco@jaraco.com>
parents: 27981
diff changeset
146 def expandscheme(ui, url, **opts):
45957
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 44470
diff changeset
147 """given a repo path, provide the scheme-expanded path"""
27982
bf1d5c223ac0 schemes: add debugexpandscheme command, resolving a scheme to canonical form
Jason R. Coombs <jaraco@jaraco.com>
parents: 27981
diff changeset
148 repo = hg._peerlookup(url)
bf1d5c223ac0 schemes: add debugexpandscheme command, resolving a scheme to canonical form
Jason R. Coombs <jaraco@jaraco.com>
parents: 27981
diff changeset
149 if isinstance(repo, ShortRepository):
bf1d5c223ac0 schemes: add debugexpandscheme command, resolving a scheme to canonical form
Jason R. Coombs <jaraco@jaraco.com>
parents: 27981
diff changeset
150 url = repo.resolve(url)
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
151 ui.write(url + b'\n')