setup.py: Remove commands symlink, unsymlink

setup.py

@@ -1,158 +1,150 b''
 # -*- coding: utf-8 -*-
 """Setup script for IPython.
 
 Under Posix environments it works like a typical setup.py script.
 Under Windows, the command sdist is not supported, since IPython
 requires utilities which are not available under Windows."""
 
 #-----------------------------------------------------------------------------
 #  Copyright (c) 2008-2011, IPython Development Team.
 #  Copyright (c) 2001-2007, Fernando Perez <[e-mail]>
 #  Copyright (c) 2001, Janko Hauser <[e-mail]>
 #  Copyright (c) 2001, Nathaniel Gray <[e-mail]>
 #
 #  Distributed under the terms of the Modified BSD License.
 #
 #  The full license is in the file COPYING.rst, distributed with this software.
 #-----------------------------------------------------------------------------
 
 import os
 import sys
 
 # **Python version check**
 #
 # This check is also made in IPython/__init__, don't forget to update both when
 # changing Python version requirements.
 if sys.version_info < (3, 10):
     pip_message = 'This may be due to an out of date pip. Make sure you have pip >= 9.0.1.'
     try:
         import pip
         pip_version = tuple([int(x) for x in pip.__version__.split('.')[:3]])
         if pip_version < (9, 0, 1) :
             pip_message = 'Your pip version is out of date, please install pip >= 9.0.1. '\
             'pip {} detected.'.format(pip.__version__)
         else:
             # pip is new enough - it must be something else
             pip_message = ''
     except Exception:
         pass
 
 
     error = """
 IPython 8.19+ supports Python 3.10 and above, following SPEC0
 IPython 8.13+ supports Python 3.9 and above, following NEP 29.
 IPython 8.0-8.12 supports Python 3.8 and above, following NEP 29.
 When using Python 2.7, please install IPython 5.x LTS Long Term Support version.
 Python 3.3 and 3.4 were supported up to IPython 6.x.
 Python 3.5 was supported with IPython 7.0 to 7.9.
 Python 3.6 was supported with IPython up to 7.16.
 Python 3.7 was still supported with the 7.x branch.
 
 See IPython `README.rst` file for more information:
 
     https://github.com/ipython/ipython/blob/main/README.rst
 
 Python {py} detected.
 {pip}
 """.format(
         py=sys.version_info, pip=pip_message
     )
 
     print(error, file=sys.stderr)
     sys.exit(1)
 
 # At least we're on the python version we need, move on.
 
 from setuptools import setup
 
 # Our own imports
 
 from setupbase import target_update, find_entry_points
 
 from setupbase import (
     setup_args,
     check_package_data_first,
     find_data_files,
     git_prebuild,
-    install_symlinked,
-    install_lib_symlink,
-    install_scripts_for_symlink,
-    unsymlink,
 )
 
 #-------------------------------------------------------------------------------
 # Handle OS specific things
 #-------------------------------------------------------------------------------
 
 if os.name in ('nt','dos'):
     os_name = 'windows'
 else:
     os_name = os.name
 
 # Under Windows, 'sdist' has not been supported.  Now that the docs build with
 # Sphinx it might work, but let's not turn it on until someone confirms that it
 # actually works.
 if os_name == 'windows' and 'sdist' in sys.argv:
     print('The sdist command is not available under Windows.  Exiting.')
     sys.exit(1)
 
 
 #-------------------------------------------------------------------------------
 # Things related to the IPython documentation
 #-------------------------------------------------------------------------------
 
 # update the manuals when building a source dist
 if len(sys.argv) >= 2 and sys.argv[1] in ('sdist','bdist_rpm'):
 
     # List of things to be updated. Each entry is a triplet of args for
     # target_update()
     to_update = [
         (
             "docs/man/ipython.1.gz",
             ["docs/man/ipython.1"],
             "cd docs/man && python -m gzip --best ipython.1",
         ),
     ]
 
 
     [ target_update(*t) for t in to_update ]
 
 #---------------------------------------------------------------------------
 # Find all the packages, package data, and data_files
 #---------------------------------------------------------------------------
 
 data_files = find_data_files()
 
 setup_args['data_files'] = data_files
 
 #---------------------------------------------------------------------------
 # custom distutils commands
 #---------------------------------------------------------------------------
 # imports here, so they are after setuptools import if there was one
 from setuptools.command.sdist import sdist
 
 setup_args['cmdclass'] = {
     'build_py': \
             check_package_data_first(git_prebuild('IPython')),
     'sdist' : git_prebuild('IPython', sdist),
-    'symlink': install_symlinked,
-    'install_lib_symlink': install_lib_symlink,
-    'install_scripts_sym': install_scripts_for_symlink,
-    'unsymlink': unsymlink,
 }
 
 setup_args["entry_points"] = {
     "console_scripts": find_entry_points(),
     "pygments.lexers": [
         "ipythonconsole = IPython.lib.lexers:IPythonConsoleLexer",
         "ipython = IPython.lib.lexers:IPythonLexer",
         "ipython3 = IPython.lib.lexers:IPython3Lexer",
     ],
 }
 
 #---------------------------------------------------------------------------
 # Do the actual setup now
 #---------------------------------------------------------------------------
 
 if __name__ == "__main__":
     setup(**setup_args)

setupbase.py

@@ -1,349 +1,285 b''
 # encoding: utf-8
 """
 This module defines the things that are used in setup.py for building IPython
 
 This includes:
 
     * The basic arguments to setup
     * Functions for finding things like packages, package data, etc.
     * A function for checking dependencies.
 """
 
 # Copyright (c) IPython Development Team.
 # Distributed under the terms of the Modified BSD License.
 
 import os
 import re
 import sys
 from glob import glob
 from logging import log
 
 from setuptools import Command
 from setuptools.command.build_py import build_py
 
 from setuptools.command.install import install
 from setuptools.command.install_scripts import install_scripts
 
 
 #-------------------------------------------------------------------------------
 # Useful globals and utility functions
 #-------------------------------------------------------------------------------
 
 # A few handy globals
 isfile = os.path.isfile
 pjoin = os.path.join
 repo_root = os.path.dirname(os.path.abspath(__file__))
 
 def execfile(fname, globs, locs=None):
     locs = locs or globs
     with open(fname, encoding="utf-8") as f:
         exec(compile(f.read(), fname, "exec"), globs, locs)
 
 # A little utility we'll need below, since glob() does NOT allow you to do
 # exclusion on multiple endings!
 def file_doesnt_endwith(test,endings):
     """Return true if test is a file and its name does NOT end with any
     of the strings listed in endings."""
     if not isfile(test):
         return False
     for e in endings:
         if test.endswith(e):
             return False
     return True
 
 #---------------------------------------------------------------------------
 # Basic project information
 #---------------------------------------------------------------------------
 
 # release.py contains version, authors, license, url, keywords, etc.
 execfile(pjoin(repo_root, 'IPython','core','release.py'), globals())
 
 # Create a dict with the basic information
 # This dict is eventually passed to setup after additional keys are added.
 setup_args = dict(
       author           = author,
       author_email     = author_email,
       license          = license,
       )
 
 
 #---------------------------------------------------------------------------
 # Find packages
 #---------------------------------------------------------------------------
 
 def find_packages():
     """
     Find all of IPython's packages.
     """
     excludes = ['deathrow', 'quarantine']
     packages = []
     for directory, subdirs, files in os.walk("IPython"):
         package = directory.replace(os.path.sep, ".")
         if any(package.startswith("IPython." + exc) for exc in excludes):
             # package is to be excluded (e.g. deathrow)
             continue
         if '__init__.py' not in files:
             # not a package
             continue
         packages.append(package)
     return packages
 
 #---------------------------------------------------------------------------
 # Find package data
 #---------------------------------------------------------------------------
 
 def find_package_data():
     """
     Find IPython's package_data.
     """
     # This is not enough for these things to appear in an sdist.
     # We need to muck with the MANIFEST to get this to work
 
     package_data = {
         'IPython.core' : ['profile/README*'],
         'IPython.core.tests' : ['*.png', '*.jpg', 'daft_extension/*.py'],
         'IPython.lib.tests' : ['*.wav'],
         'IPython.testing.plugin' : ['*.txt'],
     }
 
     return package_data
 
 
 def check_package_data(package_data):
     """verify that package_data globs make sense"""
     print("checking package data")
     for pkg, data in package_data.items():
         pkg_root = pjoin(*pkg.split('.'))
         for d in data:
             path = pjoin(pkg_root, d)
             if '*' in path:
                 assert len(glob(path)) > 0, "No files match pattern %s" % path
             else:
                 assert os.path.exists(path), "Missing package data: %s" % path
 
 
 def check_package_data_first(command):
     """decorator for checking package_data before running a given command
 
     Probably only needs to wrap build_py
     """
     class DecoratedCommand(command):
         def run(self):
             check_package_data(self.package_data)
             command.run(self)
     return DecoratedCommand
 
 
 #---------------------------------------------------------------------------
 # Find data files
 #---------------------------------------------------------------------------
 
 def find_data_files():
     """
     Find IPython's data_files.
 
     Just man pages at this point.
     """
 
     if "freebsd" in sys.platform:
         manpagebase = pjoin('man', 'man1')
     else:
         manpagebase = pjoin('share', 'man', 'man1')
 
     # Simple file lists can be made by hand
     manpages = [f for f in glob(pjoin('docs','man','*.1.gz')) if isfile(f)]
     if not manpages:
         # When running from a source tree, the manpages aren't gzipped
         manpages = [f for f in glob(pjoin('docs','man','*.1')) if isfile(f)]
 
     # And assemble the entire output list
     data_files = [ (manpagebase, manpages) ]
 
     return data_files
 
 
 # The two functions below are copied from IPython.utils.path, so we don't need
 # to import IPython during setup, which fails on Python 3.
 
 def target_outdated(target,deps):
     """Determine whether a target is out of date.
 
     target_outdated(target,deps) -> 1/0
 
     deps: list of filenames which MUST exist.
     target: single filename which may or may not exist.
 
     If target doesn't exist or is older than any file listed in deps, return
     true, otherwise return false.
     """
     try:
         target_time = os.path.getmtime(target)
     except os.error:
         return 1
     for dep in deps:
         dep_time = os.path.getmtime(dep)
         if dep_time > target_time:
             #print "For target",target,"Dep failed:",dep # dbg
             #print "times (dep,tar):",dep_time,target_time # dbg
             return 1
     return 0
 
 
 def target_update(target,deps,cmd):
     """Update a target with a given command given a list of dependencies.
 
     target_update(target,deps,cmd) -> runs cmd if target is outdated.
 
     This is just a wrapper around target_outdated() which calls the given
     command if target is outdated."""
 
     if target_outdated(target,deps):
         os.system(cmd)
 
 #---------------------------------------------------------------------------
 # Find scripts
 #---------------------------------------------------------------------------
 
 def find_entry_points():
     """Defines the command line entry points for IPython
 
     This always uses setuptools-style entry points. When setuptools is not in
     use, our own build_scripts_entrypt class below parses these and builds
     command line scripts.
 
     Each of our entry points gets a plain name, e.g. ipython, and a name
     suffixed with the Python major version number, e.g. ipython3.
     """
     ep = [
             'ipython%s = IPython:start_ipython',
         ]
     major_suffix = str(sys.version_info[0])
     return [e % "" for e in ep] + [e % major_suffix for e in ep]
 
-
-class install_lib_symlink(Command):
-    user_options = [
-        ('install-dir=', 'd', "directory to install to"),
-        ]
-
-    def initialize_options(self):
-        self.install_dir = None
-
-    def finalize_options(self):
-        self.set_undefined_options('symlink',
-                                   ('install_lib', 'install_dir'),
-                                  )
-
-    def run(self):
-        if sys.platform == 'win32':
-            raise Exception("This doesn't work on Windows.")
-        pkg = os.path.join(os.getcwd(), 'IPython')
-        dest = os.path.join(self.install_dir, 'IPython')
-        if os.path.islink(dest):
-            print('removing existing symlink at %s' % dest)
-            os.unlink(dest)
-        print('symlinking %s -> %s' % (pkg, dest))
-        os.symlink(pkg, dest)
-
-class unsymlink(install):
-    def run(self):
-        dest = os.path.join(self.install_lib, 'IPython')
-        if os.path.islink(dest):
-            print('removing symlink at %s' % dest)
-            os.unlink(dest)
-        else:
-            print('No symlink exists at %s' % dest)
-
-class install_symlinked(install):
-    def run(self):
-        if sys.platform == 'win32':
-            raise Exception("This doesn't work on Windows.")
-
-        # Run all sub-commands (at least those that need to be run)
-        for cmd_name in self.get_sub_commands():
-            self.run_command(cmd_name)
-
-    # 'sub_commands': a list of commands this command might have to run to
-    # get its work done.  See cmd.py for more info.
-    sub_commands = [('install_lib_symlink', lambda self:True),
-                    ('install_scripts_sym', lambda self:True),
-                   ]
-
-class install_scripts_for_symlink(install_scripts):
-    """Redefined to get options from 'symlink' instead of 'install'.
-
-    I love distutils almost as much as I love setuptools.
-    """
-    def finalize_options(self):
-        self.set_undefined_options('build', ('build_scripts', 'build_dir'))
-        self.set_undefined_options('symlink',
-                                   ('install_scripts', 'install_dir'),
-                                   ('force', 'force'),
-                                   ('skip_build', 'skip_build'),
-                                  )
-
-
 #---------------------------------------------------------------------------
 # VCS related
 #---------------------------------------------------------------------------
 
-
 def git_prebuild(pkg_dir, build_cmd=build_py):
     """Return extended build or sdist command class for recording commit
 
     records git commit in IPython.utils._sysinfo.commit
 
     for use in IPython.utils.sysinfo.sys_info() calls after installation.
     """
 
     class MyBuildPy(build_cmd):
         ''' Subclass to write commit data into installation tree '''
         def run(self):
             # loose as `.dev` is suppose to be invalid
             print("check version number")
             loose_pep440re = re.compile(r'^(\d+)\.(\d+)\.(\d+((a|b|rc)\d+)?)(\.post\d+)?(\.dev\d*)?$')
             if not loose_pep440re.match(version):
                 raise ValueError("Version number '%s' is not valid (should match [N!]N(.N)*[{a|b|rc}N][.postN][.devN])" % version)
 
 
             build_cmd.run(self)
             # this one will only fire for build commands
             if hasattr(self, 'build_lib'):
                 self._record_commit(self.build_lib)
 
         def make_release_tree(self, base_dir, files):
             # this one will fire for sdist
             build_cmd.make_release_tree(self, base_dir, files)
             self._record_commit(base_dir)
 
         def _record_commit(self, base_dir):
             import subprocess
             proc = subprocess.Popen('git rev-parse --short HEAD',
                                     stdout=subprocess.PIPE,
                                     stderr=subprocess.PIPE,
                                     shell=True)
             repo_commit, _ = proc.communicate()
             repo_commit = repo_commit.strip().decode("ascii")
 
             out_pth = pjoin(base_dir, pkg_dir, 'utils', '_sysinfo.py')
             if os.path.isfile(out_pth) and not repo_commit:
                 # nothing to write, don't clobber
                 return
 
             print("writing git commit '%s' to %s" % (repo_commit, out_pth))
 
             # remove to avoid overwriting original via hard link
             try:
                 os.remove(out_pth)
             except (IOError, OSError):
                 pass
             with open(out_pth, "w", encoding="utf-8") as out_file:
                 out_file.writelines(
                     [
                         "# GENERATED BY setup.py\n",
                         'commit = "%s"\n' % repo_commit,
                     ]
                 )
 
     return MyBuildPy