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annotate Lib/distutils/command/build_py.py @ 54294:dba767bc3155 legacy-trunk

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remove mention of old ctypes version
author Benjamin Peterson <benjamin@python.org>
date Sat, 23 May 2009 20:59:09 +0000
parents a5229237eb50
children a501573c23f2
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1 """distutils.command.build_py
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2
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3 Implements the Distutils 'build_py' command."""
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4
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5 __revision__ = "$Id$"
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6
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7 import string, os
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8 from types import *
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9 from glob import glob
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10
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11 from distutils.core import Command
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12 from distutils.errors import *
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13 from distutils.util import convert_path
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14 from distutils import log
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15
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16 class build_py (Command):
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17
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18 description = "\"build\" pure Python modules (copy to build directory)"
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19
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20 user_options = [
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21 ('build-lib=', 'd', "directory to \"build\" (copy) to"),
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22 ('compile', 'c', "compile .py to .pyc"),
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23 ('no-compile', None, "don't compile .py files [default]"),
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24 ('optimize=', 'O',
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25 "also compile with optimization: -O1 for \"python -O\", "
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26 "-O2 for \"python -OO\", and -O0 to disable [default: -O0]"),
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27 ('force', 'f', "forcibly build everything (ignore file timestamps)"),
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28 ]
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29
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30 boolean_options = ['compile', 'force']
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31 negative_opt = {'no-compile' : 'compile'}
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32
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33
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34 def initialize_options (self):
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35 self.build_lib = None
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36 self.py_modules = None
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37 self.package = None
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38 self.package_data = None
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39 self.package_dir = None
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40 self.compile = 0
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41 self.optimize = 0
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42 self.force = None
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43
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44 def finalize_options (self):
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45 self.set_undefined_options('build',
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46 ('build_lib', 'build_lib'),
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47 ('force', 'force'))
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48
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49 # Get the distribution options that are aliases for build_py
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50 # options -- list of packages and list of modules.
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51 self.packages = self.distribution.packages
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52 self.py_modules = self.distribution.py_modules
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53 self.package_data = self.distribution.package_data
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54 self.package_dir = {}
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55 if self.distribution.package_dir:
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56 for name, path in self.distribution.package_dir.items():
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57 self.package_dir[name] = convert_path(path)
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58 self.data_files = self.get_data_files()
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59
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60 # Ick, copied straight from install_lib.py (fancy_getopt needs a
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61 # type system! Hell, *everything* needs a type system!!!)
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62 if type(self.optimize) is not IntType:
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63 try:
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64 self.optimize = int(self.optimize)
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65 assert 0 <= self.optimize <= 2
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66 except (ValueError, AssertionError):
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67 raise DistutilsOptionError, "optimize must be 0, 1, or 2"
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68
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69 def run (self):
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70
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71 # XXX copy_file by default preserves atime and mtime. IMHO this is
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72 # the right thing to do, but perhaps it should be an option -- in
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73 # particular, a site administrator might want installed files to
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74 # reflect the time of installation rather than the last
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75 # modification time before the installed release.
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76
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77 # XXX copy_file by default preserves mode, which appears to be the
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78 # wrong thing to do: if a file is read-only in the working
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79 # directory, we want it to be installed read/write so that the next
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80 # installation of the same module distribution can overwrite it
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81 # without problems. (This might be a Unix-specific issue.) Thus
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82 # we turn off 'preserve_mode' when copying to the build directory,
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83 # since the build directory is supposed to be exactly what the
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84 # installation will look like (ie. we preserve mode when
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85 # installing).
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86
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87 # Two options control which modules will be installed: 'packages'
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88 # and 'py_modules'. The former lets us work with whole packages, not
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89 # specifying individual modules at all; the latter is for
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90 # specifying modules one-at-a-time.
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91
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92 if self.py_modules:
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93 self.build_modules()
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94 if self.packages:
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95 self.build_packages()
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96 self.build_package_data()
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97
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98 self.byte_compile(self.get_outputs(include_bytecode=0))
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99
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100 # run ()
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101
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102 def get_data_files (self):
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103 """Generate list of '(package,src_dir,build_dir,filenames)' tuples"""
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104 data = []
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105 if not self.packages:
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106 return data
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107 for package in self.packages:
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108 # Locate package source directory
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109 src_dir = self.get_package_dir(package)
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110
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111 # Compute package build directory
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112 build_dir = os.path.join(*([self.build_lib] + package.split('.')))
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113
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114 # Length of path to strip from found files
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115 plen = 0
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116 if src_dir:
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117 plen = len(src_dir)+1
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118
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119 # Strip directory from globbed filenames
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120 filenames = [
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121 file[plen:] for file in self.find_data_files(package, src_dir)
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122 ]
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123 data.append((package, src_dir, build_dir, filenames))
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124 return data
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125
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126 def find_data_files (self, package, src_dir):
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127 """Return filenames for package's data files in 'src_dir'"""
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128 globs = (self.package_data.get('', [])
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129 + self.package_data.get(package, []))
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130 files = []
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131 for pattern in globs:
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132 # Each pattern has to be converted to a platform-specific path
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133 filelist = glob(os.path.join(src_dir, convert_path(pattern)))
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134 # Files that match more than one pattern are only added once
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135 files.extend([fn for fn in filelist if fn not in files])
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136 return files
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137
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138 def build_package_data (self):
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139 """Copy data files into build directory"""
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140 lastdir = None
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141 for package, src_dir, build_dir, filenames in self.data_files:
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142 for filename in filenames:
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143 target = os.path.join(build_dir, filename)
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144 self.mkpath(os.path.dirname(target))
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145 self.copy_file(os.path.join(src_dir, filename), target,
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146 preserve_mode=False)
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147
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148 def get_package_dir (self, package):
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149 """Return the directory, relative to the top of the source
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150 distribution, where package 'package' should be found
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151 (at least according to the 'package_dir' option, if any)."""
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152
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153 path = string.split(package, '.')
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154
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155 if not self.package_dir:
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156 if path:
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157 return apply(os.path.join, path)
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158 else:
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159 return ''
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160 else:
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161 tail = []
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162 while path:
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163 try:
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164 pdir = self.package_dir[string.join(path, '.')]
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165 except KeyError:
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166 tail.insert(0, path[-1])
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167 del path[-1]
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168 else:
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169 tail.insert(0, pdir)
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170 return os.path.join(*tail)
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171 else:
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172 # Oops, got all the way through 'path' without finding a
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173 # match in package_dir. If package_dir defines a directory
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174 # for the root (nameless) package, then fallback on it;
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175 # otherwise, we might as well have not consulted
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176 # package_dir at all, as we just use the directory implied
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177 # by 'tail' (which should be the same as the original value
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178 # of 'path' at this point).
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179 pdir = self.package_dir.get('')
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180 if pdir is not None:
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181 tail.insert(0, pdir)
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182
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183 if tail:
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184 return apply(os.path.join, tail)
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185 else:
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186 return ''
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187
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188 # get_package_dir ()
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189
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190
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191 def check_package (self, package, package_dir):
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192
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193 # Empty dir name means current directory, which we can probably
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194 # assume exists. Also, os.path.exists and isdir don't know about
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195 # my "empty string means current dir" convention, so we have to
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196 # circumvent them.
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197 if package_dir != "":
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198 if not os.path.exists(package_dir):
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199 raise DistutilsFileError, \
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200 "package directory '%s' does not exist" % package_dir
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201 if not os.path.isdir(package_dir):
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202 raise DistutilsFileError, \
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203 ("supposed package directory '%s' exists, " +
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204 "but is not a directory") % package_dir
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205
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206 # Require __init__.py for all but the "root package"
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207 if package:
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208 init_py = os.path.join(package_dir, "__init__.py")
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diff changeset
209 if os.path.isfile(init_py):
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210 return init_py
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diff changeset
211 else:
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diff changeset
212 log.warn(("package init file '%s' not found " +
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diff changeset
213 "(or not a regular file)"), init_py)
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214
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215 # Either not in a package at all (__init__.py not expected), or
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diff changeset
216 # __init__.py doesn't exist -- so don't return the filename.
23679
b18348bdca08 Make None return explicit
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 23668
diff changeset
217 return None
21268
d296e6bb17e5 Whitespace normalization.
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diff changeset
218
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219 # check_package ()
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220
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221
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222 def check_module (self, module, module_file):
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diff changeset
223 if not os.path.isfile(module_file):
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224 log.warn("file %s (for module %s) not found", module_file, module)
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Tim Peters <tim.peters@gmail.com>
parents: 22830
diff changeset
225 return 0
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226 else:
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diff changeset
227 return 1
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228
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229 # check_module ()
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230
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231
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232 def find_package_modules (self, package, package_dir):
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diff changeset
233 self.check_package(package, package_dir)
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234 module_files = glob(os.path.join(package_dir, "*.py"))
12094
8d1c69bdc4f2 Deleted some crufty comments and code.
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diff changeset
235 modules = []
14237
d9643e9c90eb Added 'script_name' and 'script_args' instance attributes to Distribution.
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diff changeset
236 setup_script = os.path.abspath(self.distribution.script_name)
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parents: 11521
diff changeset
237
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238 for f in module_files:
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diff changeset
239 abs_f = os.path.abspath(f)
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parents: 11521
diff changeset
240 if abs_f != setup_script:
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diff changeset
241 module = os.path.splitext(os.path.basename(f))[0]
7acb8bbc215b Standardized whitespace around function calls.
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diff changeset
242 modules.append((package, module, f))
14237
d9643e9c90eb Added 'script_name' and 'script_args' instance attributes to Distribution.
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diff changeset
243 else:
d9643e9c90eb Added 'script_name' and 'script_args' instance attributes to Distribution.
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diff changeset
244 self.debug_print("excluding %s" % setup_script)
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diff changeset
245 return modules
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246
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247
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diff changeset
248 def find_modules (self):
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249 """Finds individually-specified Python modules, ie. those listed by
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diff changeset
250 module name in 'self.py_modules'. Returns a list of tuples (package,
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diff changeset
251 module_base, filename): 'package' is a tuple of the path through
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diff changeset
252 package-space to the module; 'module_base' is the bare (no
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diff changeset
253 packages, no dots) module name, and 'filename' is the path to the
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parents: 12743
diff changeset
254 ".py" file (relative to the distribution root) that implements the
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diff changeset
255 module.
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diff changeset
256 """
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diff changeset
257
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258 # Map package names to tuples of useful info about the package:
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diff changeset
259 # (package_dir, checked)
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diff changeset
260 # package_dir - the directory where we'll find source files for
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diff changeset
261 # this package
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diff changeset
262 # checked - true if we have checked that the package directory
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diff changeset
263 # is valid (exists, contains __init__.py, ... ?)
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diff changeset
264 packages = {}
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diff changeset
265
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diff changeset
266 # List of (package, module, filename) tuples to return
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diff changeset
267 modules = []
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268
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diff changeset
269 # We treat modules-in-packages almost the same as toplevel modules,
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diff changeset
270 # just the "package" for a toplevel is empty (either an empty
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diff changeset
271 # string or empty list, depending on context). Differences:
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diff changeset
272 # - don't check for __init__.py in directory for empty package
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diff changeset
273
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diff changeset
274 for module in self.py_modules:
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diff changeset
275 path = string.split(module, '.')
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diff changeset
276 package = string.join(path[0:-1], '.')
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diff changeset
277 module_base = path[-1]
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diff changeset
278
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diff changeset
279 try:
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280 (package_dir, checked) = packages[package]
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281 except KeyError:
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282 package_dir = self.get_package_dir(package)
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283 checked = 0
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284
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285 if not checked:
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286 init_py = self.check_package(package, package_dir)
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287 packages[package] = (package_dir, 1)
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288 if init_py:
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289 modules.append((package, "__init__", init_py))
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290
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291 # XXX perhaps we should also check for just .pyc files
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292 # (so greedy closed-source bastards can distribute Python
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293 # modules too)
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294 module_file = os.path.join(package_dir, module_base + ".py")
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295 if not self.check_module(module, module_file):
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296 continue
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297
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298 modules.append((package, module_base, module_file))
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299
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300 return modules
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301
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302 # find_modules ()
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303
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304
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305 def find_all_modules (self):
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306 """Compute the list of all modules that will be built, whether
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307 they are specified one-module-at-a-time ('self.py_modules') or
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308 by whole packages ('self.packages'). Return a list of tuples
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309 (package, module, module_file), just like 'find_modules()' and
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310 'find_package_modules()' do."""
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311
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312 modules = []
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313 if self.py_modules:
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314 modules.extend(self.find_modules())
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315 if self.packages:
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316 for package in self.packages:
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317 package_dir = self.get_package_dir(package)
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318 m = self.find_package_modules(package, package_dir)
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319 modules.extend(m)
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320
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321 return modules
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322
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323 # find_all_modules ()
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324
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325
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326 def get_source_files (self):
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327
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328 modules = self.find_all_modules()
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329 filenames = []
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330 for module in modules:
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331 filenames.append(module[-1])
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332
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333 return filenames
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334
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335
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336 def get_module_outfile (self, build_dir, package, module):
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337 outfile_path = [build_dir] + list(package) + [module + ".py"]
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2be17d368a9c Update distutils so that it triggers no warnings when run under -3.
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338 return os.path.join(*outfile_path)
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339
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340
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341 def get_outputs (self, include_bytecode=1):
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342 modules = self.find_all_modules()
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343 outputs = []
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344 for (package, module, module_file) in modules:
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345 package = string.split(package, '.')
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346 filename = self.get_module_outfile(self.build_lib, package, module)
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347 outputs.append(filename)
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348 if include_bytecode:
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349 if self.compile:
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350 outputs.append(filename + "c")
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351 if self.optimize > 0:
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352 outputs.append(filename + "o")
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353
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f49471953689 Add support for package data.
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354 outputs += [
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355 os.path.join(build_dir, filename)
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356 for package, src_dir, build_dir, filenames in self.data_files
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357 for filename in filenames
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358 ]
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359
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360 return outputs
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361
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362
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363 def build_module (self, module, module_file, package):
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364 if type(package) is StringType:
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365 package = string.split(package, '.')
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366 elif type(package) not in (ListType, TupleType):
11521
ba07fff72511 [from 1999-11-04]
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367 raise TypeError, \
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368 "'package' must be a string (dot-separated), list, or tuple"
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369
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370 # Now put the module source file into the "build" area -- this is
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371 # easy, we just copy it somewhere under self.build_lib (the build
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372 # directory for Python source).
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373 outfile = self.get_module_outfile(self.build_lib, package, module)
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374 dir = os.path.dirname(outfile)
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diff changeset
375 self.mkpath(dir)
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diff changeset
376 return self.copy_file(module_file, outfile, preserve_mode=0)
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377
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378
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379 def build_modules (self):
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380
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381 modules = self.find_modules()
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382 for (package, module, module_file) in modules:
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diff changeset
383
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384 # Now "build" the module -- ie. copy the source file to
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385 # self.build_lib (the build directory for Python source).
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386 # (Actually, it gets copied to the directory for this package
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387 # under self.build_lib.)
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diff changeset
388 self.build_module(module, module_file, package)
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389
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diff changeset
390 # build_modules ()
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391
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392
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diff changeset
393 def build_packages (self):
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394
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395 for package in self.packages:
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396
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diff changeset
397 # Get list of (package, module, module_file) tuples based on
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diff changeset
398 # scanning the package directory. 'package' is only included
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diff changeset
399 # in the tuple so that 'find_modules()' and
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diff changeset
400 # 'find_package_tuples()' have a consistent interface; it's
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diff changeset
401 # ignored here (apart from a sanity check). Also, 'module' is
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diff changeset
402 # the *unqualified* module name (ie. no dots, no package -- we
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diff changeset
403 # already know its package!), and 'module_file' is the path to
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diff changeset
404 # the .py file, relative to the current directory
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diff changeset
405 # (ie. including 'package_dir').
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diff changeset
406 package_dir = self.get_package_dir(package)
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diff changeset
407 modules = self.find_package_modules(package, package_dir)
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diff changeset
408
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diff changeset
409 # Now loop over the modules we found, "building" each one (just
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diff changeset
410 # copy it to self.build_lib).
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diff changeset
411 for (package_, module, module_file) in modules:
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diff changeset
412 assert package == package_
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diff changeset
413 self.build_module(module, module_file, package)
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diff changeset
414
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diff changeset
415 # build_packages ()
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diff changeset
416
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diff changeset
417
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diff changeset
418 def byte_compile (self, files):
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diff changeset
419 from distutils.util import byte_compile
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diff changeset
420 prefix = self.build_lib
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diff changeset
421 if prefix[-1] != os.sep:
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422 prefix = prefix + os.sep
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423
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424 # XXX this code is essentially the same as the 'byte_compile()
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425 # method of the "install_lib" command, except for the determination
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426 # of the 'prefix' string. Hmmm.
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427
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428 if self.compile:
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429 byte_compile(files, optimize=0,
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430 force=self.force, prefix=prefix, dry_run=self.dry_run)
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431 if self.optimize > 0:
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432 byte_compile(files, optimize=self.optimize,
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433 force=self.force, prefix=prefix, dry_run=self.dry_run)
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434
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435 # class build_py