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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 | |
| import pkg_resources | |
| from setuptools.command.easy_install import easy_install | |
| from setuptools import namespaces | |
| import setuptools | |
| 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, | |
| ) | |
| 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): | |
| self.run_command('egg_info') | |
| # Build extensions in-place | |
| self.reinitialize_command('build_ext', inplace=1) | |
| self.run_command('build_ext') | |
| 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 | |