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1 """distutils.command.install |
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2 |
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3 Implements the Distutils 'install' command.""" |
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4 |
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5 from distutils import log |
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6 |
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7 # This module should be kept compatible with Python 2.1. |
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8 |
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9 __revision__ = "$Id: install.py 62788 2008-05-06 22:41:46Z christian.heimes $" |
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10 |
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11 import sys, os, string |
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12 from types import * |
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13 from distutils.core import Command |
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14 from distutils.debug import DEBUG |
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15 from distutils.sysconfig import get_config_vars |
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16 from distutils.errors import DistutilsPlatformError |
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17 from distutils.file_util import write_file |
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18 from distutils.util import convert_path, subst_vars, change_root |
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19 from distutils.util import get_platform |
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20 from distutils.errors import DistutilsOptionError |
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21 from site import USER_BASE |
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22 from site import USER_SITE |
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23 |
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24 |
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25 if sys.version < "2.2": |
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26 WINDOWS_SCHEME = { |
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27 'purelib': '$base', |
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28 'platlib': '$base', |
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29 'headers': '$base/Include/$dist_name', |
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30 'scripts': '$base/Scripts', |
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31 'data' : '$base', |
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32 } |
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33 else: |
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34 WINDOWS_SCHEME = { |
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35 'purelib': '$base/Lib/site-packages', |
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36 'platlib': '$base/Lib/site-packages', |
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37 'headers': '$base/Include/$dist_name', |
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38 'scripts': '$base/Scripts', |
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39 'data' : '$base', |
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40 } |
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41 |
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42 INSTALL_SCHEMES = { |
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43 'unix_prefix': { |
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44 'purelib': '$base/lib/python$py_version_short/site-packages', |
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45 'platlib': '$platbase/lib/python$py_version_short/site-packages', |
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46 'headers': '$base/include/python$py_version_short/$dist_name', |
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47 'scripts': '$base/bin', |
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48 'data' : '$base', |
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49 }, |
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50 'unix_home': { |
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51 'purelib': '$base/lib/python', |
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52 'platlib': '$base/lib/python', |
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53 'headers': '$base/include/python/$dist_name', |
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54 'scripts': '$base/bin', |
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55 'data' : '$base', |
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56 }, |
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57 'unix_user': { |
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58 'purelib': '$usersite', |
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59 'platlib': '$usersite', |
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60 'headers': '$userbase/include/python$py_version_short/$dist_name', |
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61 'scripts': '$userbase/bin', |
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62 'data' : '$userbase', |
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63 }, |
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64 'nt': WINDOWS_SCHEME, |
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65 'nt_user': { |
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66 'purelib': '$usersite', |
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67 'platlib': '$usersite', |
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68 'headers': '$userbase/Python$py_version_nodot/Include/$dist_name', |
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69 'scripts': '$userbase/Scripts', |
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70 'data' : '$userbase', |
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71 }, |
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72 'mac': { |
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73 'purelib': '$base/Lib/site-packages', |
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74 'platlib': '$base/Lib/site-packages', |
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75 'headers': '$base/Include/$dist_name', |
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76 'scripts': '$base/Scripts', |
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77 'data' : '$base', |
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78 }, |
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79 'mac_user': { |
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80 'purelib': '$usersite', |
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81 'platlib': '$usersite', |
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82 'headers': '$userbase/$py_version_short/include/$dist_name', |
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83 'scripts': '$userbase/bin', |
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84 'data' : '$userbase', |
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85 }, |
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86 'os2': { |
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87 'purelib': '$base/Lib/site-packages', |
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88 'platlib': '$base/Lib/site-packages', |
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89 'headers': '$base/Include/$dist_name', |
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90 'scripts': '$base/Scripts', |
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91 'data' : '$base', |
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92 }, |
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93 'os2_home': { |
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94 'purelib': '$usersite', |
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95 'platlib': '$usersite', |
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96 'headers': '$userbase/include/python$py_version_short/$dist_name', |
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97 'scripts': '$userbase/bin', |
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98 'data' : '$userbase', |
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99 }, |
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100 } |
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101 |
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102 # The keys to an installation scheme; if any new types of files are to be |
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103 # installed, be sure to add an entry to every installation scheme above, |
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104 # and to SCHEME_KEYS here. |
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105 SCHEME_KEYS = ('purelib', 'platlib', 'headers', 'scripts', 'data') |
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106 |
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107 |
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108 class install (Command): |
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109 |
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110 description = "install everything from build directory" |
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111 |
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112 user_options = [ |
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113 # Select installation scheme and set base director(y|ies) |
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114 ('prefix=', None, |
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115 "installation prefix"), |
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116 ('exec-prefix=', None, |
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117 "(Unix only) prefix for platform-specific files"), |
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118 ('home=', None, |
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119 "(Unix only) home directory to install under"), |
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120 ('user', None, |
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121 "install in user site-package '%s'" % USER_SITE), |
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122 |
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123 # Or, just set the base director(y|ies) |
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124 ('install-base=', None, |
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125 "base installation directory (instead of --prefix or --home)"), |
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126 ('install-platbase=', None, |
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127 "base installation directory for platform-specific files " + |
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128 "(instead of --exec-prefix or --home)"), |
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129 ('root=', None, |
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130 "install everything relative to this alternate root directory"), |
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131 |
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132 # Or, explicitly set the installation scheme |
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133 ('install-purelib=', None, |
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134 "installation directory for pure Python module distributions"), |
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135 ('install-platlib=', None, |
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136 "installation directory for non-pure module distributions"), |
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137 ('install-lib=', None, |
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138 "installation directory for all module distributions " + |
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139 "(overrides --install-purelib and --install-platlib)"), |
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140 |
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141 ('install-headers=', None, |
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142 "installation directory for C/C++ headers"), |
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143 ('install-scripts=', None, |
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144 "installation directory for Python scripts"), |
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145 ('install-data=', None, |
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146 "installation directory for data files"), |
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147 |
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148 # Byte-compilation options -- see install_lib.py for details, as |
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149 # these are duplicated from there (but only install_lib does |
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150 # anything with them). |
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151 ('compile', 'c', "compile .py to .pyc [default]"), |
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152 ('no-compile', None, "don't compile .py files"), |
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153 ('optimize=', 'O', |
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154 "also compile with optimization: -O1 for \"python -O\", " |
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155 "-O2 for \"python -OO\", and -O0 to disable [default: -O0]"), |
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156 |
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157 # Miscellaneous control options |
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158 ('force', 'f', |
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159 "force installation (overwrite any existing files)"), |
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160 ('skip-build', None, |
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161 "skip rebuilding everything (for testing/debugging)"), |
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162 |
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163 # Where to install documentation (eventually!) |
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164 #('doc-format=', None, "format of documentation to generate"), |
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165 #('install-man=', None, "directory for Unix man pages"), |
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166 #('install-html=', None, "directory for HTML documentation"), |
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167 #('install-info=', None, "directory for GNU info files"), |
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168 |
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169 ('record=', None, |
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170 "filename in which to record list of installed files"), |
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171 ] |
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172 |
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173 boolean_options = ['compile', 'force', 'skip-build', 'user'] |
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174 negative_opt = {'no-compile' : 'compile'} |
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175 |
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176 |
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177 def initialize_options (self): |
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178 |
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179 # High-level options: these select both an installation base |
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180 # and scheme. |
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181 self.prefix = None |
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182 self.exec_prefix = None |
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183 self.home = None |
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184 self.user = 0 |
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185 |
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186 # These select only the installation base; it's up to the user to |
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187 # specify the installation scheme (currently, that means supplying |
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188 # the --install-{platlib,purelib,scripts,data} options). |
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189 self.install_base = None |
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190 self.install_platbase = None |
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191 self.root = None |
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192 |
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193 # These options are the actual installation directories; if not |
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194 # supplied by the user, they are filled in using the installation |
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195 # scheme implied by prefix/exec-prefix/home and the contents of |
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196 # that installation scheme. |
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197 self.install_purelib = None # for pure module distributions |
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198 self.install_platlib = None # non-pure (dists w/ extensions) |
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199 self.install_headers = None # for C/C++ headers |
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200 self.install_lib = None # set to either purelib or platlib |
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201 self.install_scripts = None |
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202 self.install_data = None |
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203 self.install_userbase = USER_BASE |
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204 self.install_usersite = USER_SITE |
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205 |
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206 self.compile = None |
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207 self.optimize = None |
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208 |
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209 # These two are for putting non-packagized distributions into their |
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210 # own directory and creating a .pth file if it makes sense. |
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211 # 'extra_path' comes from the setup file; 'install_path_file' can |
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212 # be turned off if it makes no sense to install a .pth file. (But |
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213 # better to install it uselessly than to guess wrong and not |
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214 # install it when it's necessary and would be used!) Currently, |
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215 # 'install_path_file' is always true unless some outsider meddles |
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216 # with it. |
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217 self.extra_path = None |
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218 self.install_path_file = 1 |
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219 |
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220 # 'force' forces installation, even if target files are not |
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221 # out-of-date. 'skip_build' skips running the "build" command, |
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222 # handy if you know it's not necessary. 'warn_dir' (which is *not* |
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223 # a user option, it's just there so the bdist_* commands can turn |
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224 # it off) determines whether we warn about installing to a |
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225 # directory not in sys.path. |
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226 self.force = 0 |
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227 self.skip_build = 0 |
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228 self.warn_dir = 1 |
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229 |
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230 # These are only here as a conduit from the 'build' command to the |
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231 # 'install_*' commands that do the real work. ('build_base' isn't |
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232 # actually used anywhere, but it might be useful in future.) They |
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233 # are not user options, because if the user told the install |
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234 # command where the build directory is, that wouldn't affect the |
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235 # build command. |
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236 self.build_base = None |
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237 self.build_lib = None |
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238 |
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239 # Not defined yet because we don't know anything about |
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240 # documentation yet. |
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241 #self.install_man = None |
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242 #self.install_html = None |
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243 #self.install_info = None |
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244 |
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245 self.record = None |
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246 |
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247 |
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248 # -- Option finalizing methods ------------------------------------- |
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249 # (This is rather more involved than for most commands, |
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250 # because this is where the policy for installing third- |
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251 # party Python modules on various platforms given a wide |
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252 # array of user input is decided. Yes, it's quite complex!) |
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253 |
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254 def finalize_options (self): |
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255 |
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256 # This method (and its pliant slaves, like 'finalize_unix()', |
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257 # 'finalize_other()', and 'select_scheme()') is where the default |
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258 # installation directories for modules, extension modules, and |
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259 # anything else we care to install from a Python module |
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260 # distribution. Thus, this code makes a pretty important policy |
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261 # statement about how third-party stuff is added to a Python |
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262 # installation! Note that the actual work of installation is done |
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263 # by the relatively simple 'install_*' commands; they just take |
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264 # their orders from the installation directory options determined |
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265 # here. |
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266 |
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267 # Check for errors/inconsistencies in the options; first, stuff |
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268 # that's wrong on any platform. |
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269 |
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270 if ((self.prefix or self.exec_prefix or self.home) and |
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271 (self.install_base or self.install_platbase)): |
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272 raise DistutilsOptionError, \ |
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273 ("must supply either prefix/exec-prefix/home or " + |
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274 "install-base/install-platbase -- not both") |
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275 |
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276 if self.home and (self.prefix or self.exec_prefix): |
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277 raise DistutilsOptionError, \ |
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278 "must supply either home or prefix/exec-prefix -- not both" |
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279 |
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280 if self.user and (self.prefix or self.exec_prefix or self.home or |
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281 self.install_base or self.install_platbase): |
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282 raise DistutilsOptionError("can't combine user with with prefix/" |
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283 "exec_prefix/home or install_(plat)base") |
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284 |
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285 # Next, stuff that's wrong (or dubious) only on certain platforms. |
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286 if os.name != "posix": |
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287 if self.exec_prefix: |
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288 self.warn("exec-prefix option ignored on this platform") |
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289 self.exec_prefix = None |
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290 |
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291 # Now the interesting logic -- so interesting that we farm it out |
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292 # to other methods. The goal of these methods is to set the final |
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293 # values for the install_{lib,scripts,data,...} options, using as |
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294 # input a heady brew of prefix, exec_prefix, home, install_base, |
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295 # install_platbase, user-supplied versions of |
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296 # install_{purelib,platlib,lib,scripts,data,...}, and the |
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297 # INSTALL_SCHEME dictionary above. Phew! |
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298 |
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299 self.dump_dirs("pre-finalize_{unix,other}") |
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300 |
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301 if os.name == 'posix': |
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302 self.finalize_unix() |
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303 else: |
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304 self.finalize_other() |
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305 |
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306 self.dump_dirs("post-finalize_{unix,other}()") |
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307 |
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308 # Expand configuration variables, tilde, etc. in self.install_base |
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309 # and self.install_platbase -- that way, we can use $base or |
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310 # $platbase in the other installation directories and not worry |
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311 # about needing recursive variable expansion (shudder). |
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312 |
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313 py_version = (string.split(sys.version))[0] |
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314 (prefix, exec_prefix) = get_config_vars('prefix', 'exec_prefix') |
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315 self.config_vars = {'dist_name': self.distribution.get_name(), |
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316 'dist_version': self.distribution.get_version(), |
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317 'dist_fullname': self.distribution.get_fullname(), |
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318 'py_version': py_version, |
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319 'py_version_short': py_version[0:3], |
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320 'py_version_nodot': py_version[0] + py_version[2], |
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321 'sys_prefix': prefix, |
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322 'prefix': prefix, |
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323 'sys_exec_prefix': exec_prefix, |
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324 'exec_prefix': exec_prefix, |
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325 'userbase': self.install_userbase, |
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326 'usersite': self.install_usersite, |
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327 } |
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328 self.expand_basedirs() |
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329 |
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330 self.dump_dirs("post-expand_basedirs()") |
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331 |
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332 # Now define config vars for the base directories so we can expand |
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333 # everything else. |
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334 self.config_vars['base'] = self.install_base |
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335 self.config_vars['platbase'] = self.install_platbase |
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336 |
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337 if DEBUG: |
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338 from pprint import pprint |
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339 print "config vars:" |
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340 pprint(self.config_vars) |
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341 |
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342 # Expand "~" and configuration variables in the installation |
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343 # directories. |
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344 self.expand_dirs() |
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345 |
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346 self.dump_dirs("post-expand_dirs()") |
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347 |
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348 # Create directories in the home dir: |
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349 if self.user: |
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350 self.create_home_path() |
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351 |
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352 # Pick the actual directory to install all modules to: either |
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353 # install_purelib or install_platlib, depending on whether this |
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354 # module distribution is pure or not. Of course, if the user |
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355 # already specified install_lib, use their selection. |
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356 if self.install_lib is None: |
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357 if self.distribution.ext_modules: # has extensions: non-pure |
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358 self.install_lib = self.install_platlib |
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359 else: |
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360 self.install_lib = self.install_purelib |
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361 |
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362 |
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363 # Convert directories from Unix /-separated syntax to the local |
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364 # convention. |
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365 self.convert_paths('lib', 'purelib', 'platlib', |
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366 'scripts', 'data', 'headers', |
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367 'userbase', 'usersite') |
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368 |
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369 # Well, we're not actually fully completely finalized yet: we still |
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370 # have to deal with 'extra_path', which is the hack for allowing |
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371 # non-packagized module distributions (hello, Numerical Python!) to |
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372 # get their own directories. |
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373 self.handle_extra_path() |
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374 self.install_libbase = self.install_lib # needed for .pth file |
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375 self.install_lib = os.path.join(self.install_lib, self.extra_dirs) |
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376 |
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377 # If a new root directory was supplied, make all the installation |
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378 # dirs relative to it. |
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379 if self.root is not None: |
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380 self.change_roots('libbase', 'lib', 'purelib', 'platlib', |
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381 'scripts', 'data', 'headers') |
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382 |
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383 self.dump_dirs("after prepending root") |
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384 |
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385 # Find out the build directories, ie. where to install from. |
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386 self.set_undefined_options('build', |
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387 ('build_base', 'build_base'), |
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388 ('build_lib', 'build_lib')) |
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389 |
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390 # Punt on doc directories for now -- after all, we're punting on |
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391 # documentation completely! |
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392 |
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393 # finalize_options () |
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394 |
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395 |
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396 def dump_dirs (self, msg): |
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397 if DEBUG: |
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398 from distutils.fancy_getopt import longopt_xlate |
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399 print msg + ":" |
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400 for opt in self.user_options: |
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401 opt_name = opt[0] |
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402 if opt_name[-1] == "=": |
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403 opt_name = opt_name[0:-1] |
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404 if opt_name in self.negative_opt: |
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405 opt_name = string.translate(self.negative_opt[opt_name], |
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406 longopt_xlate) |
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407 val = not getattr(self, opt_name) |
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408 else: |
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409 opt_name = string.translate(opt_name, longopt_xlate) |
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410 val = getattr(self, opt_name) |
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411 print " %s: %s" % (opt_name, val) |
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412 |
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413 |
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414 def finalize_unix (self): |
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415 |
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416 if self.install_base is not None or self.install_platbase is not None: |
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417 if ((self.install_lib is None and |
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418 self.install_purelib is None and |
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419 self.install_platlib is None) or |
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420 self.install_headers is None or |
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421 self.install_scripts is None or |
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422 self.install_data is None): |
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423 raise DistutilsOptionError, \ |
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424 ("install-base or install-platbase supplied, but " |
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425 "installation scheme is incomplete") |
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426 return |
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427 |
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428 if self.user: |
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429 if self.install_userbase is None: |
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430 raise DistutilsPlatformError( |
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431 "User base directory is not specified") |
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432 self.install_base = self.install_platbase = self.install_userbase |
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433 self.select_scheme("unix_user") |
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434 elif self.home is not None: |
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435 self.install_base = self.install_platbase = self.home |
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436 self.select_scheme("unix_home") |
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437 else: |
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438 if self.prefix is None: |
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439 if self.exec_prefix is not None: |
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440 raise DistutilsOptionError, \ |
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441 "must not supply exec-prefix without prefix" |
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442 |
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443 self.prefix = os.path.normpath(sys.prefix) |
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444 self.exec_prefix = os.path.normpath(sys.exec_prefix) |
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445 |
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446 else: |
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447 if self.exec_prefix is None: |
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448 self.exec_prefix = self.prefix |
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449 |
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450 self.install_base = self.prefix |
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451 self.install_platbase = self.exec_prefix |
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452 self.select_scheme("unix_prefix") |
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453 |
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454 # finalize_unix () |
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455 |
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456 |
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457 def finalize_other (self): # Windows and Mac OS for now |
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458 |
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459 if self.user: |
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460 if self.install_userbase is None: |
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461 raise DistutilsPlatformError( |
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462 "User base directory is not specified") |
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463 self.install_base = self.install_platbase = self.install_userbase |
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464 self.select_scheme(os.name + "_user") |
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465 elif self.home is not None: |
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466 self.install_base = self.install_platbase = self.home |
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467 self.select_scheme("unix_home") |
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468 else: |
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469 if self.prefix is None: |
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470 self.prefix = os.path.normpath(sys.prefix) |
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471 |
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472 self.install_base = self.install_platbase = self.prefix |
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473 try: |
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474 self.select_scheme(os.name) |
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475 except KeyError: |
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476 raise DistutilsPlatformError, \ |
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477 "I don't know how to install stuff on '%s'" % os.name |
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478 |
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479 # finalize_other () |
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480 |
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481 |
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482 def select_scheme (self, name): |
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483 # it's the caller's problem if they supply a bad name! |
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484 scheme = INSTALL_SCHEMES[name] |
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485 for key in SCHEME_KEYS: |
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486 attrname = 'install_' + key |
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487 if getattr(self, attrname) is None: |
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488 setattr(self, attrname, scheme[key]) |
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489 |
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490 |
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491 def _expand_attrs (self, attrs): |
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492 for attr in attrs: |
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493 val = getattr(self, attr) |
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494 if val is not None: |
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495 if os.name == 'posix' or os.name == 'nt': |
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496 val = os.path.expanduser(val) |
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497 val = subst_vars(val, self.config_vars) |
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498 setattr(self, attr, val) |
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499 |
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500 |
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501 def expand_basedirs (self): |
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502 self._expand_attrs(['install_base', |
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503 'install_platbase', |
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504 'root']) |
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505 |
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506 def expand_dirs (self): |
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507 self._expand_attrs(['install_purelib', |
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508 'install_platlib', |
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509 'install_lib', |
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510 'install_headers', |
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511 'install_scripts', |
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512 'install_data',]) |
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513 |
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514 |
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515 def convert_paths (self, *names): |
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516 for name in names: |
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517 attr = "install_" + name |
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518 setattr(self, attr, convert_path(getattr(self, attr))) |
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519 |
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520 |
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521 def handle_extra_path (self): |
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522 |
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523 if self.extra_path is None: |
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524 self.extra_path = self.distribution.extra_path |
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525 |
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526 if self.extra_path is not None: |
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527 if type(self.extra_path) is StringType: |
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528 self.extra_path = string.split(self.extra_path, ',') |
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529 |
|
530 if len(self.extra_path) == 1: |
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531 path_file = extra_dirs = self.extra_path[0] |
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532 elif len(self.extra_path) == 2: |
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533 (path_file, extra_dirs) = self.extra_path |
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534 else: |
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535 raise DistutilsOptionError, \ |
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536 ("'extra_path' option must be a list, tuple, or " |
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537 "comma-separated string with 1 or 2 elements") |
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538 |
|
539 # convert to local form in case Unix notation used (as it |
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540 # should be in setup scripts) |
|
541 extra_dirs = convert_path(extra_dirs) |
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542 |
|
543 else: |
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544 path_file = None |
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545 extra_dirs = '' |
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546 |
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547 # XXX should we warn if path_file and not extra_dirs? (in which |
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548 # case the path file would be harmless but pointless) |
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549 self.path_file = path_file |
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550 self.extra_dirs = extra_dirs |
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551 |
|
552 # handle_extra_path () |
|
553 |
|
554 |
|
555 def change_roots (self, *names): |
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556 for name in names: |
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557 attr = "install_" + name |
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558 setattr(self, attr, change_root(self.root, getattr(self, attr))) |
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559 |
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560 def create_home_path(self): |
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561 """Create directories under ~ |
|
562 """ |
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563 if not self.user: |
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564 return |
|
565 home = convert_path(os.path.expanduser("~")) |
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566 for name, path in self.config_vars.iteritems(): |
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567 if path.startswith(home) and not os.path.isdir(path): |
|
568 self.debug_print("os.makedirs('%s', 0700)" % path) |
|
569 os.makedirs(path, 0700) |
|
570 |
|
571 # -- Command execution methods ------------------------------------- |
|
572 |
|
573 def run (self): |
|
574 |
|
575 # Obviously have to build before we can install |
|
576 if not self.skip_build: |
|
577 self.run_command('build') |
|
578 # If we built for any other platform, we can't install. |
|
579 build_plat = self.distribution.get_command_obj('build').plat_name |
|
580 # check warn_dir - it is a clue that the 'install' is happening |
|
581 # internally, and not to sys.path, so we don't check the platform |
|
582 # matches what we are running. |
|
583 if self.warn_dir and build_plat != get_platform(): |
|
584 raise DistutilsPlatformError("Can't install when " |
|
585 "cross-compiling") |
|
586 |
|
587 # Run all sub-commands (at least those that need to be run) |
|
588 for cmd_name in self.get_sub_commands(): |
|
589 self.run_command(cmd_name) |
|
590 |
|
591 if self.path_file: |
|
592 self.create_path_file() |
|
593 |
|
594 # write list of installed files, if requested. |
|
595 if self.record: |
|
596 outputs = self.get_outputs() |
|
597 if self.root: # strip any package prefix |
|
598 root_len = len(self.root) |
|
599 for counter in xrange(len(outputs)): |
|
600 outputs[counter] = outputs[counter][root_len:] |
|
601 self.execute(write_file, |
|
602 (self.record, outputs), |
|
603 "writing list of installed files to '%s'" % |
|
604 self.record) |
|
605 |
|
606 sys_path = map(os.path.normpath, sys.path) |
|
607 sys_path = map(os.path.normcase, sys_path) |
|
608 install_lib = os.path.normcase(os.path.normpath(self.install_lib)) |
|
609 if (self.warn_dir and |
|
610 not (self.path_file and self.install_path_file) and |
|
611 install_lib not in sys_path): |
|
612 log.debug(("modules installed to '%s', which is not in " |
|
613 "Python's module search path (sys.path) -- " |
|
614 "you'll have to change the search path yourself"), |
|
615 self.install_lib) |
|
616 |
|
617 # run () |
|
618 |
|
619 def create_path_file (self): |
|
620 filename = os.path.join(self.install_libbase, |
|
621 self.path_file + ".pth") |
|
622 if self.install_path_file: |
|
623 self.execute(write_file, |
|
624 (filename, [self.extra_dirs]), |
|
625 "creating %s" % filename) |
|
626 else: |
|
627 self.warn("path file '%s' not created" % filename) |
|
628 |
|
629 |
|
630 # -- Reporting methods --------------------------------------------- |
|
631 |
|
632 def get_outputs (self): |
|
633 # Assemble the outputs of all the sub-commands. |
|
634 outputs = [] |
|
635 for cmd_name in self.get_sub_commands(): |
|
636 cmd = self.get_finalized_command(cmd_name) |
|
637 # Add the contents of cmd.get_outputs(), ensuring |
|
638 # that outputs doesn't contain duplicate entries |
|
639 for filename in cmd.get_outputs(): |
|
640 if filename not in outputs: |
|
641 outputs.append(filename) |
|
642 |
|
643 if self.path_file and self.install_path_file: |
|
644 outputs.append(os.path.join(self.install_libbase, |
|
645 self.path_file + ".pth")) |
|
646 |
|
647 return outputs |
|
648 |
|
649 def get_inputs (self): |
|
650 # XXX gee, this looks familiar ;-( |
|
651 inputs = [] |
|
652 for cmd_name in self.get_sub_commands(): |
|
653 cmd = self.get_finalized_command(cmd_name) |
|
654 inputs.extend(cmd.get_inputs()) |
|
655 |
|
656 return inputs |
|
657 |
|
658 |
|
659 # -- Predicates for sub-command list ------------------------------- |
|
660 |
|
661 def has_lib (self): |
|
662 """Return true if the current distribution has any Python |
|
663 modules to install.""" |
|
664 return (self.distribution.has_pure_modules() or |
|
665 self.distribution.has_ext_modules()) |
|
666 |
|
667 def has_headers (self): |
|
668 return self.distribution.has_headers() |
|
669 |
|
670 def has_scripts (self): |
|
671 return self.distribution.has_scripts() |
|
672 |
|
673 def has_data (self): |
|
674 return self.distribution.has_data_files() |
|
675 |
|
676 |
|
677 # 'sub_commands': a list of commands this command might have to run to |
|
678 # get its work done. See cmd.py for more info. |
|
679 sub_commands = [('install_lib', has_lib), |
|
680 ('install_headers', has_headers), |
|
681 ('install_scripts', has_scripts), |
|
682 ('install_data', has_data), |
|
683 ('install_egg_info', lambda self:True), |
|
684 ] |
|
685 |
|
686 # class install |