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from distutils.util import convert_path from distutils import log from distutils.errors import DistutilsError, DistutilsOptionError import os import glob import io from setuptools.extern import six import pkg_resources from setuptools.command.easy_install import easy_install from setuptools import namespaces import setuptools __metaclass__ = type class develop(namespaces.DevelopInstaller, easy_install): """Set up package for development""" description = "install package in 'development mode'" user_options = easy_install.user_options + [ ("uninstall", "u", "Uninstall this source package"), ("egg-path=", None, "Set the path to be used in the .egg-link file"), ] boolean_options = easy_install.boolean_options + ['uninstall'] command_consumes_arguments = False # override base def run(self): if self.uninstall: self.multi_version = True self.uninstall_link() self.uninstall_namespaces() else: self.install_for_development() self.warn_deprecated_options() def initialize_options(self): self.uninstall = None self.egg_path = None easy_install.initialize_options(self) self.setup_path = None self.always_copy_from = '.' # always copy eggs installed in curdir def finalize_options(self): ei = self.get_finalized_command("egg_info") if ei.broken_egg_info: template = "Please rename %r to %r before using 'develop'" args = ei.egg_info, ei.broken_egg_info raise DistutilsError(template % args) self.args = [ei.egg_name] easy_install.finalize_options(self) self.expand_basedirs() self.expand_dirs() # pick up setup-dir .egg files only: no .egg-info self.package_index.scan(glob.glob('*.egg')) egg_link_fn = ei.egg_name + '.egg-link' self.egg_link = os.path.join(self.install_dir, egg_link_fn) self.egg_base = ei.egg_base if self.egg_path is None: self.egg_path = os.path.abspath(ei.egg_base) target = pkg_resources.normalize_path(self.egg_base) egg_path = pkg_resources.normalize_path( os.path.join(self.install_dir, self.egg_path)) if egg_path != target: raise DistutilsOptionError( "--egg-path must be a relative path from the install" " directory to " + target ) # Make a distribution for the package's source self.dist = pkg_resources.Distribution( target, pkg_resources.PathMetadata(target, os.path.abspath(ei.egg_info)), project_name=ei.egg_name ) self.setup_path = self._resolve_setup_path( self.egg_base, self.install_dir, self.egg_path, ) @staticmethod def _resolve_setup_path(egg_base, install_dir, egg_path): """ Generate a path from egg_base back to '.' where the setup script resides and ensure that path points to the setup path from $install_dir/$egg_path. """ path_to_setup = egg_base.replace(os.sep, '/').rstrip('/') if path_to_setup != os.curdir: path_to_setup = '../' * (path_to_setup.count('/') + 1) resolved = pkg_resources.normalize_path( os.path.join(install_dir, egg_path, path_to_setup) ) if resolved != pkg_resources.normalize_path(os.curdir): raise DistutilsOptionError( "Can't get a consistent path to setup script from" " installation directory", resolved, pkg_resources.normalize_path(os.curdir)) return path_to_setup def install_for_development(self): if six.PY3 and getattr(self.distribution, 'use_2to3', False): # If we run 2to3 we can not do this inplace: # Ensure metadata is up-to-date self.reinitialize_command('build_py', inplace=0) self.run_command('build_py') bpy_cmd = self.get_finalized_command("build_py") build_path = pkg_resources.normalize_path(bpy_cmd.build_lib) # Build extensions self.reinitialize_command('egg_info', egg_base=build_path) self.run_command('egg_info') self.reinitialize_command('build_ext', inplace=0) self.run_command('build_ext') # Fixup egg-link and easy-install.pth ei_cmd = self.get_finalized_command("egg_info") self.egg_path = build_path self.dist.location = build_path # XXX self.dist._provider = pkg_resources.PathMetadata( build_path, ei_cmd.egg_info) else: # Without 2to3 inplace works fine: self.run_command('egg_info') # Build extensions in-place self.reinitialize_command('build_ext', inplace=1) self.run_command('build_ext') self.install_site_py() # ensure that target dir is site-safe if setuptools.bootstrap_install_from: self.easy_install(setuptools.bootstrap_install_from) setuptools.bootstrap_install_from = None self.install_namespaces() # create an .egg-link in the installation dir, pointing to our egg log.info("Creating %s (link to %s)", self.egg_link, self.egg_base) if not self.dry_run: with open(self.egg_link, "w") as f: f.write(self.egg_path + "\n" + self.setup_path) # postprocess the installed distro, fixing up .pth, installing scripts, # and handling requirements self.process_distribution(None, self.dist, not self.no_deps) def uninstall_link(self): if os.path.exists(self.egg_link): log.info("Removing %s (link to %s)", self.egg_link, self.egg_base) egg_link_file = open(self.egg_link) contents = [line.rstrip() for line in egg_link_file] egg_link_file.close() if contents not in ([self.egg_path], [self.egg_path, self.setup_path]): log.warn("Link points to %s: uninstall aborted", contents) return if not self.dry_run: os.unlink(self.egg_link) if not self.dry_run: self.update_pth(self.dist) # remove any .pth link to us if self.distribution.scripts: # XXX should also check for entry point scripts! log.warn("Note: you must uninstall or replace scripts manually!") def install_egg_scripts(self, dist): if dist is not self.dist: # Installing a dependency, so fall back to normal behavior return easy_install.install_egg_scripts(self, dist) # create wrapper scripts in the script dir, pointing to dist.scripts # new-style... self.install_wrapper_scripts(dist) # ...and old-style for script_name in self.distribution.scripts or []: script_path = os.path.abspath(convert_path(script_name)) script_name = os.path.basename(script_path) with io.open(script_path) as strm: script_text = strm.read() self.install_script(dist, script_name, script_text, script_path) def install_wrapper_scripts(self, dist): dist = VersionlessRequirement(dist) return easy_install.install_wrapper_scripts(self, dist) class VersionlessRequirement: """ Adapt a pkg_resources.Distribution to simply return the project name as the 'requirement' so that scripts will work across multiple versions. >>> from pkg_resources import Distribution >>> dist = Distribution(project_name='foo', version='1.0') >>> str(dist.as_requirement()) 'foo==1.0' >>> adapted_dist = VersionlessRequirement(dist) >>> str(adapted_dist.as_requirement()) 'foo' """ def __init__(self, dist): self.__dist = dist def __getattr__(self, name): return getattr(self.__dist, name) def as_requirement(self): return self.project_name
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