Mercurial > cpython-lru_cache-weakref

annotate Lib/distutils/command/install_scripts.py @ 87690:66c1c9f32567 default tip

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Add use_weakref option to functools.lru_cache The use_weakref option makes lru_cache create weak references to the function arguments when creating the cache key, which prevents them from staying in the memory forever even after all other references to them are gone. This is a proof of concept for http://bugs.python.org/issue19859
author Radomir Dopieralski <devel@sheep.art.pl>
date Tue, 03 Dec 2013 16:02:48 +0100
parents 3e26c9033306
children
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1 """distutils.command.install_scripts
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2
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3 Implements the Distutils 'install_scripts' command, for installing
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4 Python scripts."""
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5
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6 # contributed by Bastian Kleineidam
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7
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8 import os
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9 from distutils.core import Command
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10 from distutils import log
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11 from stat import ST_MODE
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13
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14 class install_scripts(Command):
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15
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16 description = "install scripts (Python or otherwise)"
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17
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18 user_options = [
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19 ('install-dir=', 'd', "directory to install scripts to"),
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20 ('build-dir=','b', "build directory (where to install from)"),
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21 ('force', 'f', "force installation (overwrite existing files)"),
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22 ('skip-build', None, "skip the build steps"),
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23 ]
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24
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25 boolean_options = ['force', 'skip-build']
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26
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27 def initialize_options(self):
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28 self.install_dir = None
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29 self.force = 0
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30 self.build_dir = None
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31 self.skip_build = None
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32
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33 def finalize_options(self):
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34 self.set_undefined_options('build', ('build_scripts', 'build_dir'))
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35 self.set_undefined_options('install',
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36 ('install_scripts', 'install_dir'),
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37 ('force', 'force'),
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38 ('skip_build', 'skip_build'),
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39 )
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40
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41 def run(self):
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42 if not self.skip_build:
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43 self.run_command('build_scripts')
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44 self.outfiles = self.copy_tree(self.build_dir, self.install_dir)
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45 if os.name == 'posix':
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46 # Set the executable bits (owner, group, and world) on
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47 # all the scripts we just installed.
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48 for file in self.get_outputs():
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49 if self.dry_run:
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50 log.info("changing mode of %s", file)
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51 else:
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52 mode = ((os.stat(file)[ST_MODE]) | 0o555) & 0o7777
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53 log.info("changing mode of %s to %o", file, mode)
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54 os.chmod(file, mode)
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55
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56 def get_inputs(self):
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57 return self.distribution.scripts or []
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58
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59 def get_outputs(self):
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60 return self.outfiles or []