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setupbase.py
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setupbase.py
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#
# Copyright (c) 2019, Neptune Labs Sp. z o.o.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
"""
This file originates from the 'jupyter-packaging' package, and
contains a set of useful utilities for including npm packages
within a Python package.
"""
import functools
import os
import pipes
import sys
from distutils import log
from glob import glob
from os.path import join as pjoin
from subprocess import check_call
from setuptools import Command
from setuptools.command.bdist_egg import bdist_egg
from setuptools.command.build_py import build_py
from setuptools.command.develop import develop
from setuptools.command.sdist import sdist
try:
from wheel.bdist_wheel import bdist_wheel
except ImportError:
bdist_wheel = None
if sys.platform == 'win32':
from subprocess import list2cmdline
else:
def list2cmdline(cmd_list):
return ' '.join(map(pipes.quote, cmd_list))
__version__ = '0.1.0'
# ---------------------------------------------------------------------------
# Top Level Variables
# ---------------------------------------------------------------------------
here = os.path.dirname(__file__)
is_repo = os.path.exists(pjoin(here, '.git'))
node_modules = pjoin(here, 'node_modules')
npm_path = ':'.join([
pjoin(here, 'node_modules', '.bin'),
os.environ.get('PATH', os.defpath),
])
if "--skip-npm" in sys.argv:
print("Skipping npm install as requested.")
skip_npm = True
sys.argv.remove("--skip-npm")
else:
skip_npm = False
# ---------------------------------------------------------------------------
# Public Functions
# ---------------------------------------------------------------------------
def expand_data_files(data_file_patterns):
"""Expand data file patterns to a valid data_files spec.
Parameters
-----------
data_file_patterns: list(tuple)
A list of (directory, glob patterns) for the data file locations.
The globs themselves do not recurse.
"""
data_files = []
for (directory, patterns) in data_file_patterns:
files = []
for p in patterns:
files.extend([os.path.relpath(f, here) for f in glob(p)])
data_files.append((directory, files))
return data_files
def find_packages(top):
"""
Find all of the packages.
"""
packages = []
for d, dirs, _ in os.walk(top, followlinks=True):
if os.path.exists(pjoin(d, '__init__.py')):
packages.append(os.path.relpath(d, top).replace(os.path.sep, '.'))
elif d != top:
# Do not look for packages in subfolders if current is not a package
dirs[:] = []
return packages
def update_package_data(distribution):
"""update build_py options to get package_data changes"""
build_py = distribution.get_command_obj('build_py')
build_py.finalize_options()
def create_cmdclass(base_cmdclass=None, wrappers=None):
"""Create a command class with the given optional wrappers.
Parameters
----------
base_cmdclass: dict, optional
A dictionary with base cmd class commands
wrappers: list(str), optional
The cmdclass names to run before running other commands
"""
if base_cmdclass is None:
base_cmdclass = dict()
egg = base_cmdclass.get('bdist_egg', bdist_egg) if 'bdist_egg' in sys.argv else bdist_egg_disabled
wrappers = wrappers or []
wrapper = functools.partial(wrap_command, wrappers)
return dict(
build_py=wrapper(base_cmdclass.get('build_py', build_py), strict=is_repo),
sdist=wrapper(base_cmdclass.get('sdist', sdist), strict=True),
bdist_egg=egg,
develop=wrapper(base_cmdclass.get('develop', develop), strict=True)
)
def run(cmd, *args, **kwargs):
"""Echo a command before running it. Defaults to repo as cwd"""
log.info('> ' + list2cmdline(cmd))
kwargs.setdefault('cwd', here)
kwargs.setdefault('shell', sys.platform == 'win32')
if not isinstance(cmd, list):
cmd = cmd.split()
return check_call(cmd, *args, **kwargs)
def is_stale(target, source):
"""Test whether the target file/directory is stale based on the source
file/directory.
"""
if not os.path.exists(target):
return True
target_mtime = recursive_mtime(target) or 0
return compare_recursive_mtime(source, cutoff=target_mtime)
class BaseCommand(Command):
"""Empty command because Command needs subclasses to override too much"""
user_options = []
def initialize_options(self):
pass
def finalize_options(self):
pass
def get_inputs(self):
return []
def get_outputs(self):
return []
def combine_commands(*commands):
"""Return a Command that combines several commands."""
class CombinedCommand(Command):
def initialize_options(self):
self.commands = []
for C in commands:
self.commands.append(C(self.distribution))
for c in self.commands:
c.initialize_options()
def finalize_options(self):
for c in self.commands:
c.finalize_options()
def run(self):
for c in self.commands:
c.run()
return CombinedCommand
def compare_recursive_mtime(path, cutoff, newest=True):
"""Compare the newest/oldest mtime for all files in a directory.
Cutoff should be another mtime to be compared against. If an mtime that is
newer/older than the cutoff is found it will return True.
E.g. if newest=True, and a file in path is newer than the cutoff, it will
return True.
"""
if os.path.isfile(path):
mt = mtime(path)
if newest:
if mt > cutoff:
return True
elif mt < cutoff:
return True
for dirname, _, filenames in os.walk(path, topdown=False):
for filename in filenames:
mt = mtime(pjoin(dirname, filename))
if newest: # Put outside of loop?
if mt > cutoff:
return True
elif mt < cutoff:
return True
return False
def recursive_mtime(path, newest=True):
"""Gets the newest/oldest mtime for all files in a directory."""
if os.path.isfile(path):
return mtime(path)
current_extreme = None
for dirname, _, filenames in os.walk(path, topdown=False):
for filename in filenames:
mt = mtime(pjoin(dirname, filename))
if newest: # Put outside of loop?
if mt >= (current_extreme or mt):
current_extreme = mt
elif mt <= (current_extreme or mt):
current_extreme = mt
return current_extreme
def mtime(path):
"""shorthand for mtime"""
return os.stat(path).st_mtime
def install_npm(path=None, build_dir=None, source_dir=None, build_cmd='build', force=False):
"""Return a Command for managing an npm installation.
Note: The command is skipped if the `--skip-npm` flag is used.
Parameters
----------
path: str, optional
The base path of the node package. Defaults to the repo root.
build_dir: str, optional
The target build directory. If this and source_dir are given,
the JavaScript will only be build if necessary.
source_dir: str, optional
The source code directory.
build_cmd: str, optional
The npm command to build assets to the build_dir.
"""
class NPM(BaseCommand):
description = 'install package.json dependencies using npm'
def run(self):
if skip_npm:
log.info('Skipping npm-installation')
return
node_package = path or here
node_modules = pjoin(node_package, 'node_modules')
if not which("npm"):
log.error("`npm` unavailable. If you're running this command "
"using sudo, make sure `npm` is availble to sudo")
return
if force or is_stale(node_modules, pjoin(node_package, 'package.json')):
log.info('Installing build dependencies with npm. This may '
'take a while...')
run(['npm', 'ci'], cwd=node_package)
if build_dir and source_dir and not force:
should_build = is_stale(build_dir, source_dir)
else:
should_build = True
if should_build:
run(['npm', 'run', build_cmd], cwd=node_package)
return NPM
def set_version_npm(version, path=None, allow_same_version=True):
"""Return a Command for setting npm version.
Note: The command is skipped if the `--skip-npm` flag is used.
Parameters
----------
path: str, optional
The base path of the node package. Defaults to the repo root.
"""
class NPM(BaseCommand):
description = 'set version in package.json using npm'
def run(self):
if skip_npm:
log.info('Skipping npm-installation')
return
node_package = path or here
if not which("npm"):
log.error("`npm` unavailable. If you're running this command "
"using sudo, make sure `npm` is available to sudo")
return
if allow_same_version:
run(['npm', 'version', '--allow-same-version', version], cwd=node_package)
else:
run(['npm', 'version', version], cwd=node_package)
return NPM
def set_version_js(version, path=None):
"""Return a Command for setting version in jupyter notebook extension file.
Parameters
----------
path: str, optional
The base path of the jupyter notebook package. Defaults to the repo root.
"""
class SetVersion(BaseCommand):
description = 'set version in neptune-notebook.js file'
@staticmethod
def run():
log.info("Set nbextension version = {} in {}/neptune-notebook.js".format(version, path))
run(["sed",
"-i",
"-E",
"s/var CURRENT_VERSION = '.*';/var CURRENT_VERSION = '{}';/".format(version),
"neptune-notebook.js"],
cwd=path)
return SetVersion
def ensure_targets(targets):
"""Return a Command that checks that certain files exist.
Raises a ValueError if any of the files are missing.
Note: The check is skipped if the `--skip-npm` flag is used.
"""
class TargetsCheck(BaseCommand):
def run(self):
if skip_npm:
log.info('Skipping target checks')
return
missing = [t for t in targets if not os.path.exists(t)]
if missing:
raise ValueError(('missing files: %s' % missing))
return TargetsCheck
# `shutils.which` function copied verbatim from the Python-3.3 source.
def which(cmd, mode=os.F_OK | os.X_OK, path=None):
"""Given a command, mode, and a PATH string, return the path which
conforms to the given mode on the PATH, or None if there is no such
file.
`mode` defaults to os.F_OK | os.X_OK. `path` defaults to the result
of os.environ.get("PATH"), or can be overridden with a custom search
path.
"""
# Check that a given file can be accessed with the correct mode.
# Additionally check that `file` is not a directory, as on Windows
# directories pass the os.access check.
def _access_check(fn, mode):
return (os.path.exists(fn) and os.access(fn, mode) and
not os.path.isdir(fn))
# Short circuit. If we're given a full path which matches the mode
# and it exists, we're done here.
if _access_check(cmd, mode):
return cmd
path = (path or os.environ.get("PATH", os.defpath)).split(os.pathsep)
if sys.platform == "win32":
# The current directory takes precedence on Windows.
if os.curdir not in path:
path.insert(0, os.curdir)
# PATHEXT is necessary to check on Windows.
pathext = os.environ.get("PATHEXT", "").split(os.pathsep)
# See if the given file matches any of the expected path extensions.
# This will allow us to short circuit when given "python.exe".
matches = [cmd for ext in pathext if cmd.lower().endswith(ext.lower())]
# If it does match, only test that one, otherwise we have to try
# others.
files = [cmd] if matches else [cmd + ext.lower() for ext in pathext]
else:
# On other platforms you don't have things like PATHEXT to tell you
# what file suffixes are executable, so just pass on cmd as-is.
files = [cmd]
seen = set()
for dir in path:
dir = os.path.normcase(dir)
if dir not in seen:
seen.add(dir)
for thefile in files:
name = os.path.join(dir, thefile)
if _access_check(name, mode):
return name
return None
# ---------------------------------------------------------------------------
# Private Functions
# ---------------------------------------------------------------------------
def wrap_command(cmds, cls, strict=True):
"""Wrap a setup command
Parameters
----------
cmds: list(str)
The names of the other commands to run prior to the command.
strict: boolean, optional
Wether to raise errors when a pre-command fails.
"""
class WrappedCommand(cls):
def run(self):
if not getattr(self, 'uninstall', None):
try:
[self.run_command(cmd) for cmd in cmds]
except Exception:
if strict:
raise
else:
pass
result = cls.run(self)
# update package data
update_package_data(self.distribution)
return result
return WrappedCommand
class bdist_egg_disabled(bdist_egg):
"""Disabled version of bdist_egg
Prevents setup.py install performing setuptools' default easy_install,
which it should never ever do.
"""
def run(self):
sys.exit("Aborting implicit building of eggs. Use `pip install .` " +
" to install from source.")