def get_command_class (self, command):
"""Return the class that implements the Distutils command named by
'command'. First we check the 'cmdclass' dictionary; if the
command is mentioned there, we fetch the class object from the
dictionary and return it. Otherwise we load the command module
("distutils.command." + command) and fetch the command class from
the module. The loaded class is also stored in 'cmdclass'
to speed future calls to 'get_command_class()'.
Raises DistutilsModuleError if the expected module could not be
found, or if that module does not define the expected class.
"""
klass = self.cmdclass.get(command)
if klass:
return klass
for pkgname in self.get_command_packages():
module_name = "%s.%s" % (pkgname, command)
klass_name = command
try:
__import__ (module_name)
module = sys.modules[module_name]
except ImportError:
continue
try:
klass = getattr(module, klass_name)
except AttributeError:
raise DistutilsModuleError, \
"invalid command '%s' (no class '%s' in module '%s')" \
% (command, klass_name, module_name)
self.cmdclass[command] = klass
return klass
raise DistutilsModuleError("invalid command '%s'" % command)
cmdclassは辞書で、setupの引数で渡すことができます。from distutils.cmd import Command
class build_js(Command):
def initialize_options(self):
pass
def finalize_options(self):
pass
def run(self):
print 'build_js is here!'
setup(
...
cmdclass={'build_js':build_js},
...
)
前のエントリに加えてこのようにしてやると、次の実行結果を得られます。[nori@shinano]~/Desktop/study/JavaScript/closure-proj% python setup.py build running build build:has_js Distribution:has_js running build_js build_js is here!
build_js.pyとしてまとめるとこのようになる。
#!/usr/bin/env python
# -*- coding: us-ascii -*-
# vim: syntax=python
#
# Copyright 2010 Noriyuki Hosaka bgnori@gmail.com
#
import calcdeps
def jscompile(inputs, search_paths, output, compiler_jar, compiler_flags):
import logging
import os
import os.path
cwd = os.getcwd()
output = os.path.join(cwd, output)
inputs = [os.path.join(cwd, f) for f in inputs]
logging.basicConfig(format='calcdeps.py: %(message)s', level=logging.INFO)
logging.info('Scanning files...')
logging.info('cwd: %s'%(os.getcwd(),))
logging.info('search_paths: %s'%(search_paths,))
search_paths = calcdeps.ExpandDirectories(search_paths)
#logging.info('expanded paths: %s'%(search_paths,))
out = open(output, 'w')
logging.info('Finding Closure dependencies...')
deps = calcdeps.CalculateDependencies(search_paths, inputs)
calcdeps.Compile(compiler_jar, deps, out, compiler_flags)
return output
the_args = {}
from distutils.cmd import Command
class build_js(Command):
def initialize_options(self):
pass
def finalize_options(self):
print dir(self)
def run(self):
print the_args
jscompile(**the_args)
def CompiledJS(**attr):
the_args.update(attr)
return [True] #place holder
def blackmagic(Distribution, build):
def xxx(self):
print 'Distribution:has_js'
return self.js and len(self.js) > 0
Distribution.has_js = xxx
def yyy(self):
print 'build:has_js'
return self.distribution.has_js()
build.has_js = yyy
build.sub_commands.append( ('build_js', build.has_js),)
orig = Distribution.__init__
def myinit(self, attrs):
self.js = None
orig(self, attrs)
Distribution.__init__ = myinit
setup.pyでこのように呼んであげる。
from build_js import build_js from build_js import blackmagic from build_js import CompiledJS from distutils.dist import Distribution from distutils.command.build import build blackmagic(Distribution, build)setup()の引数。
js=CompiledJS(
inputs=['src/notepad.js'],
search_paths=['/home/nori/lib/closure/'],
output='static/notepad.c.js',
compiler_jar='/home/nori/bin/closure/compiler.jar',
compiler_flags=['ADVANCED_OPTIMIZATION'],
),
bdist_rpmするとコンパイルして生成したjsファイルがパッケージに含まれない問題があるので、明日はそれに対処したいと思います。
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