mirror of
https://github.com/python/cpython.git
synced 2025-10-31 02:15:10 +00:00
7724a6c10c
PEP 370 features and sys.dont_write_bytecode are always available in 3.3; the distutils2 backport still has the conditionals. I also renamed an internal misnamed method and fixed a few things (“packaging2” name, stray print, unused import, fd leak).
410 lines
17 KiB
Python
410 lines
17 KiB
Python
"""Build pure Python modules (just copy to build directory)."""
|
|
|
|
import os
|
|
import sys
|
|
from glob import glob
|
|
|
|
from packaging import logger
|
|
from packaging.command.cmd import Command
|
|
from packaging.errors import PackagingOptionError, PackagingFileError
|
|
from packaging.util import convert_path
|
|
from packaging.compat import Mixin2to3
|
|
|
|
# marking public APIs
|
|
__all__ = ['build_py']
|
|
|
|
class build_py(Command, Mixin2to3):
|
|
|
|
description = "build pure Python modules (copy to build directory)"
|
|
|
|
user_options = [
|
|
('build-lib=', 'd', "directory to build (copy) to"),
|
|
('compile', 'c', "compile .py to .pyc"),
|
|
('no-compile', None, "don't compile .py files [default]"),
|
|
('optimize=', 'O',
|
|
"also compile with optimization: -O1 for \"python -O\", "
|
|
"-O2 for \"python -OO\", and -O0 to disable [default: -O0]"),
|
|
('force', 'f', "forcibly build everything (ignore file timestamps)"),
|
|
('use-2to3', None,
|
|
"use 2to3 to make source python 3.x compatible"),
|
|
('convert-2to3-doctests', None,
|
|
"use 2to3 to convert doctests in seperate text files"),
|
|
('use-2to3-fixers', None,
|
|
"list additional fixers opted for during 2to3 conversion"),
|
|
]
|
|
|
|
boolean_options = ['compile', 'force']
|
|
negative_opt = {'no-compile' : 'compile'}
|
|
|
|
def initialize_options(self):
|
|
self.build_lib = None
|
|
self.py_modules = None
|
|
self.package = None
|
|
self.package_data = None
|
|
self.package_dir = None
|
|
self.compile = False
|
|
self.optimize = 0
|
|
self.force = None
|
|
self._updated_files = []
|
|
self._doctests_2to3 = []
|
|
self.use_2to3 = False
|
|
self.convert_2to3_doctests = None
|
|
self.use_2to3_fixers = None
|
|
|
|
def finalize_options(self):
|
|
self.set_undefined_options('build',
|
|
'use_2to3', 'use_2to3_fixers',
|
|
'convert_2to3_doctests', 'build_lib',
|
|
'force')
|
|
|
|
# Get the distribution options that are aliases for build_py
|
|
# options -- list of packages and list of modules.
|
|
self.packages = self.distribution.packages
|
|
self.py_modules = self.distribution.py_modules
|
|
self.package_data = self.distribution.package_data
|
|
self.package_dir = None
|
|
if self.distribution.package_dir is not None:
|
|
self.package_dir = convert_path(self.distribution.package_dir)
|
|
self.data_files = self.get_data_files()
|
|
|
|
# Ick, copied straight from install_lib.py (fancy_getopt needs a
|
|
# type system! Hell, *everything* needs a type system!!!)
|
|
if not isinstance(self.optimize, int):
|
|
try:
|
|
self.optimize = int(self.optimize)
|
|
assert 0 <= self.optimize <= 2
|
|
except (ValueError, AssertionError):
|
|
raise PackagingOptionError("optimize must be 0, 1, or 2")
|
|
|
|
def run(self):
|
|
# XXX copy_file by default preserves atime and mtime. IMHO this is
|
|
# the right thing to do, but perhaps it should be an option -- in
|
|
# particular, a site administrator might want installed files to
|
|
# reflect the time of installation rather than the last
|
|
# modification time before the installed release.
|
|
|
|
# XXX copy_file by default preserves mode, which appears to be the
|
|
# wrong thing to do: if a file is read-only in the working
|
|
# directory, we want it to be installed read/write so that the next
|
|
# installation of the same module distribution can overwrite it
|
|
# without problems. (This might be a Unix-specific issue.) Thus
|
|
# we turn off 'preserve_mode' when copying to the build directory,
|
|
# since the build directory is supposed to be exactly what the
|
|
# installation will look like (ie. we preserve mode when
|
|
# installing).
|
|
|
|
# Two options control which modules will be installed: 'packages'
|
|
# and 'py_modules'. The former lets us work with whole packages, not
|
|
# specifying individual modules at all; the latter is for
|
|
# specifying modules one-at-a-time.
|
|
|
|
if self.py_modules:
|
|
self.build_modules()
|
|
if self.packages:
|
|
self.build_packages()
|
|
self.build_package_data()
|
|
|
|
if self.use_2to3 and self._updated_files:
|
|
self.run_2to3(self._updated_files, self._doctests_2to3,
|
|
self.use_2to3_fixers)
|
|
|
|
self.byte_compile(self.get_outputs(include_bytecode=False))
|
|
|
|
# -- Top-level worker functions ------------------------------------
|
|
|
|
def get_data_files(self):
|
|
"""Generate list of '(package,src_dir,build_dir,filenames)' tuples.
|
|
|
|
Helper function for `finalize_options()`.
|
|
"""
|
|
data = []
|
|
if not self.packages:
|
|
return data
|
|
for package in self.packages:
|
|
# Locate package source directory
|
|
src_dir = self.get_package_dir(package)
|
|
|
|
# Compute package build directory
|
|
build_dir = os.path.join(*([self.build_lib] + package.split('.')))
|
|
|
|
# Length of path to strip from found files
|
|
plen = 0
|
|
if src_dir:
|
|
plen = len(src_dir)+1
|
|
|
|
# Strip directory from globbed filenames
|
|
filenames = [
|
|
file[plen:] for file in self.find_data_files(package, src_dir)
|
|
]
|
|
data.append((package, src_dir, build_dir, filenames))
|
|
return data
|
|
|
|
def find_data_files(self, package, src_dir):
|
|
"""Return filenames for package's data files in 'src_dir'.
|
|
|
|
Helper function for `get_data_files()`.
|
|
"""
|
|
globs = (self.package_data.get('', [])
|
|
+ self.package_data.get(package, []))
|
|
files = []
|
|
for pattern in globs:
|
|
# Each pattern has to be converted to a platform-specific path
|
|
filelist = glob(os.path.join(src_dir, convert_path(pattern)))
|
|
# Files that match more than one pattern are only added once
|
|
files.extend(fn for fn in filelist if fn not in files)
|
|
return files
|
|
|
|
def build_package_data(self):
|
|
"""Copy data files into build directory.
|
|
|
|
Helper function for `run()`.
|
|
"""
|
|
# FIXME add tests for this method
|
|
for package, src_dir, build_dir, filenames in self.data_files:
|
|
for filename in filenames:
|
|
target = os.path.join(build_dir, filename)
|
|
srcfile = os.path.join(src_dir, filename)
|
|
self.mkpath(os.path.dirname(target))
|
|
outf, copied = self.copy_file(srcfile,
|
|
target, preserve_mode=False)
|
|
if copied and srcfile in self.distribution.convert_2to3.doctests:
|
|
self._doctests_2to3.append(outf)
|
|
|
|
# XXX - this should be moved to the Distribution class as it is not
|
|
# only needed for build_py. It also has no dependencies on this class.
|
|
def get_package_dir(self, package):
|
|
"""Return the directory, relative to the top of the source
|
|
distribution, where package 'package' should be found
|
|
(at least according to the 'package_dir' option, if any)."""
|
|
|
|
path = package.split('.')
|
|
if self.package_dir is not None:
|
|
path.insert(0, self.package_dir)
|
|
|
|
if len(path) > 0:
|
|
return os.path.join(*path)
|
|
|
|
return ''
|
|
|
|
def check_package(self, package, package_dir):
|
|
"""Helper function for `find_package_modules()` and `find_modules()'.
|
|
"""
|
|
# Empty dir name means current directory, which we can probably
|
|
# assume exists. Also, os.path.exists and isdir don't know about
|
|
# my "empty string means current dir" convention, so we have to
|
|
# circumvent them.
|
|
if package_dir != "":
|
|
if not os.path.exists(package_dir):
|
|
raise PackagingFileError(
|
|
"package directory '%s' does not exist" % package_dir)
|
|
if not os.path.isdir(package_dir):
|
|
raise PackagingFileError(
|
|
"supposed package directory '%s' exists, "
|
|
"but is not a directory" % package_dir)
|
|
|
|
# Require __init__.py for all but the "root package"
|
|
if package:
|
|
init_py = os.path.join(package_dir, "__init__.py")
|
|
if os.path.isfile(init_py):
|
|
return init_py
|
|
else:
|
|
logger.warning(("package init file '%s' not found " +
|
|
"(or not a regular file)"), init_py)
|
|
|
|
# Either not in a package at all (__init__.py not expected), or
|
|
# __init__.py doesn't exist -- so don't return the filename.
|
|
return None
|
|
|
|
def check_module(self, module, module_file):
|
|
if not os.path.isfile(module_file):
|
|
logger.warning("file %s (for module %s) not found",
|
|
module_file, module)
|
|
return False
|
|
else:
|
|
return True
|
|
|
|
def find_package_modules(self, package, package_dir):
|
|
self.check_package(package, package_dir)
|
|
module_files = glob(os.path.join(package_dir, "*.py"))
|
|
modules = []
|
|
if self.distribution.script_name is not None:
|
|
setup_script = os.path.abspath(self.distribution.script_name)
|
|
else:
|
|
setup_script = None
|
|
|
|
for f in module_files:
|
|
abs_f = os.path.abspath(f)
|
|
if abs_f != setup_script:
|
|
module = os.path.splitext(os.path.basename(f))[0]
|
|
modules.append((package, module, f))
|
|
else:
|
|
logger.debug("excluding %s", setup_script)
|
|
return modules
|
|
|
|
def find_modules(self):
|
|
"""Finds individually-specified Python modules, ie. those listed by
|
|
module name in 'self.py_modules'. Returns a list of tuples (package,
|
|
module_base, filename): 'package' is a tuple of the path through
|
|
package-space to the module; 'module_base' is the bare (no
|
|
packages, no dots) module name, and 'filename' is the path to the
|
|
".py" file (relative to the distribution root) that implements the
|
|
module.
|
|
"""
|
|
# Map package names to tuples of useful info about the package:
|
|
# (package_dir, checked)
|
|
# package_dir - the directory where we'll find source files for
|
|
# this package
|
|
# checked - true if we have checked that the package directory
|
|
# is valid (exists, contains __init__.py, ... ?)
|
|
packages = {}
|
|
|
|
# List of (package, module, filename) tuples to return
|
|
modules = []
|
|
|
|
# We treat modules-in-packages almost the same as toplevel modules,
|
|
# just the "package" for a toplevel is empty (either an empty
|
|
# string or empty list, depending on context). Differences:
|
|
# - don't check for __init__.py in directory for empty package
|
|
for module in self.py_modules:
|
|
path = module.split('.')
|
|
package = '.'.join(path[0:-1])
|
|
module_base = path[-1]
|
|
|
|
try:
|
|
package_dir, checked = packages[package]
|
|
except KeyError:
|
|
package_dir = self.get_package_dir(package)
|
|
checked = False
|
|
|
|
if not checked:
|
|
init_py = self.check_package(package, package_dir)
|
|
packages[package] = (package_dir, 1)
|
|
if init_py:
|
|
modules.append((package, "__init__", init_py))
|
|
|
|
# XXX perhaps we should also check for just .pyc files
|
|
# (so greedy closed-source bastards can distribute Python
|
|
# modules too)
|
|
module_file = os.path.join(package_dir, module_base + ".py")
|
|
if not self.check_module(module, module_file):
|
|
continue
|
|
|
|
modules.append((package, module_base, module_file))
|
|
|
|
return modules
|
|
|
|
def find_all_modules(self):
|
|
"""Compute the list of all modules that will be built, whether
|
|
they are specified one-module-at-a-time ('self.py_modules') or
|
|
by whole packages ('self.packages'). Return a list of tuples
|
|
(package, module, module_file), just like 'find_modules()' and
|
|
'find_package_modules()' do."""
|
|
modules = []
|
|
if self.py_modules:
|
|
modules.extend(self.find_modules())
|
|
if self.packages:
|
|
for package in self.packages:
|
|
package_dir = self.get_package_dir(package)
|
|
m = self.find_package_modules(package, package_dir)
|
|
modules.extend(m)
|
|
return modules
|
|
|
|
def get_source_files(self):
|
|
sources = [module[-1] for module in self.find_all_modules()]
|
|
sources += [
|
|
os.path.join(src_dir, filename)
|
|
for package, src_dir, build_dir, filenames in self.data_files
|
|
for filename in filenames]
|
|
return sources
|
|
|
|
def get_module_outfile(self, build_dir, package, module):
|
|
outfile_path = [build_dir] + list(package) + [module + ".py"]
|
|
return os.path.join(*outfile_path)
|
|
|
|
def get_outputs(self, include_bytecode=True):
|
|
modules = self.find_all_modules()
|
|
outputs = []
|
|
for package, module, module_file in modules:
|
|
package = package.split('.')
|
|
filename = self.get_module_outfile(self.build_lib, package, module)
|
|
outputs.append(filename)
|
|
if include_bytecode:
|
|
if self.compile:
|
|
outputs.append(filename + "c")
|
|
if self.optimize > 0:
|
|
outputs.append(filename + "o")
|
|
|
|
outputs += [
|
|
os.path.join(build_dir, filename)
|
|
for package, src_dir, build_dir, filenames in self.data_files
|
|
for filename in filenames]
|
|
|
|
return outputs
|
|
|
|
def build_module(self, module, module_file, package):
|
|
if isinstance(package, str):
|
|
package = package.split('.')
|
|
elif not isinstance(package, (list, tuple)):
|
|
raise TypeError(
|
|
"'package' must be a string (dot-separated), list, or tuple")
|
|
|
|
# Now put the module source file into the "build" area -- this is
|
|
# easy, we just copy it somewhere under self.build_lib (the build
|
|
# directory for Python source).
|
|
outfile = self.get_module_outfile(self.build_lib, package, module)
|
|
dir = os.path.dirname(outfile)
|
|
self.mkpath(dir)
|
|
return self.copy_file(module_file, outfile, preserve_mode=False)
|
|
|
|
def build_modules(self):
|
|
modules = self.find_modules()
|
|
for package, module, module_file in modules:
|
|
|
|
# Now "build" the module -- ie. copy the source file to
|
|
# self.build_lib (the build directory for Python source).
|
|
# (Actually, it gets copied to the directory for this package
|
|
# under self.build_lib.)
|
|
self.build_module(module, module_file, package)
|
|
|
|
def build_packages(self):
|
|
for package in self.packages:
|
|
|
|
# Get list of (package, module, module_file) tuples based on
|
|
# scanning the package directory. 'package' is only included
|
|
# in the tuple so that 'find_modules()' and
|
|
# 'find_package_tuples()' have a consistent interface; it's
|
|
# ignored here (apart from a sanity check). Also, 'module' is
|
|
# the *unqualified* module name (ie. no dots, no package -- we
|
|
# already know its package!), and 'module_file' is the path to
|
|
# the .py file, relative to the current directory
|
|
# (ie. including 'package_dir').
|
|
package_dir = self.get_package_dir(package)
|
|
modules = self.find_package_modules(package, package_dir)
|
|
|
|
# Now loop over the modules we found, "building" each one (just
|
|
# copy it to self.build_lib).
|
|
for package_, module, module_file in modules:
|
|
assert package == package_
|
|
self.build_module(module, module_file, package)
|
|
|
|
def byte_compile(self, files):
|
|
if sys.dont_write_bytecode:
|
|
logger.warning('%s: byte-compiling is disabled, skipping.',
|
|
self.get_command_name())
|
|
return
|
|
|
|
from packaging.util import byte_compile # FIXME use compileall
|
|
prefix = self.build_lib
|
|
if prefix[-1] != os.sep:
|
|
prefix = prefix + os.sep
|
|
|
|
# XXX this code is essentially the same as the 'byte_compile()
|
|
# method of the "install_lib" command, except for the determination
|
|
# of the 'prefix' string. Hmmm.
|
|
|
|
if self.compile:
|
|
byte_compile(files, optimize=0,
|
|
force=self.force, prefix=prefix, dry_run=self.dry_run)
|
|
if self.optimize > 0:
|
|
byte_compile(files, optimize=self.optimize,
|
|
force=self.force, prefix=prefix, dry_run=self.dry_run)
|