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117 lines
3.9 KiB
Python
117 lines
3.9 KiB
Python
#!/usr/bin/env python
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import errno
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import sys
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import os
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import os.path
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import re
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import distutils.command
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import distutils.command.install
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import distutils.core
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import distutils.cmd
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import distutils.errors
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from distutils.command.install import install
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APP_NAME = "ndiff"
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def path_strip_prefix(path, prefix):
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"""Return path stripped of its directory prefix if it starts with prefix,
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otherwise return path unmodified. This only works correctly with Unix
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paths; for example it will not replace the drive letter on a Windows path.
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Examples:
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>>> path_strip_prefix('/tmp/destdir/usr/bin', '/tmp/destdir')
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'/usr/bin'
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>>> path_strip_prefix('/tmp/../tmp/destdir/usr/bin', '/tmp///destdir')
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'/usr/bin'
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>>> path_strip_prefix('/etc', '/tmp/destdir')
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'/etc'
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>>> path_strip_prefix('/etc', '/')
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'/etc'
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>>> path_strip_prefix('/etc', '')
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'/etc'
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"""
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absolute = os.path.isabs(path)
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path = os.path.normpath(path)
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prefix = os.path.normpath(prefix)
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if path.startswith(prefix) and prefix != os.sep:
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path = path[len(prefix):]
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# Absolute paths must remain absolute and relative paths must remain
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# relative.
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assert os.path.isabs(path) == absolute
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return path
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###############################################################################
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# Distutils subclasses
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class null_command(distutils.cmd.Command):
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"""This is a dummy distutils command that does nothing. We use it to
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replace the install_egg_info and avoid installing a .egg-info file, because
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there's no option to disable that."""
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def initialize_options(self):
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pass
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def finalize_options(self):
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pass
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def run(self):
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pass
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class checked_install(distutils.command.install.install):
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"""This is a wrapper around the install command that checks for an error
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caused by not having the python-dev package installed. By default,
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distutils gives a misleading error message: "invalid Python installation."
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"""
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def finalize_options(self):
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try:
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distutils.command.install.install.finalize_options(self)
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except distutils.errors.DistutilsPlatformError, e:
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raise distutils.errors.DistutilsPlatformError(str(e) + """
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Installing your distribution's python-dev package may solve this problem.""")
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def set_modules_path(self):
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app_file_name = os.path.join(self.install_scripts, APP_NAME)
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# Find where the modules are installed. distutils will put them in
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# self.install_lib, but that path can contain the root (DESTDIR), so we
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# must strip it off if necessary.
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modules_dir = self.install_lib
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if self.root is not None:
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modules_dir = path_strip_prefix(modules_dir, self.root)
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app_file = open(app_file_name, "r")
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lines = app_file.readlines()
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app_file.close()
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for i in range(len(lines)):
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if re.match(r'^INSTALL_LIB =', lines[i]):
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lines[i] = "INSTALL_LIB = %s\n" % repr(modules_dir)
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break
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else:
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raise ValueError(
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"INSTALL_LIB replacement not found in %s" % app_file_name)
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app_file = open(app_file_name, "w")
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app_file.writelines(lines)
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app_file.close()
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def run(self):
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install.run(self)
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# These below are from Zenmap. We're only using set_modules_path right now, but we might consider whether the others would be useful (or, if not, whether we should remove them from Zenmap).
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# self.set_perms()
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self.set_modules_path()
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# self.fix_paths()
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# self.create_uninstaller()
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# self.write_installed_files()
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distutils.core.setup(name=u"ndiff", scripts=[u"scripts/ndiff"],
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py_modules=[u"ndiff"],
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data_files=[(u"share/man/man1", [u"docs/ndiff.1"])],
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cmdclass={"install_egg_info": null_command, "install": checked_install})
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