在安装期间运行自定义setuptools

Question

我尝试在setuptools期间实现Compass编译build,但是下面的代码在显式build命令期间运行编译,并且不会在运行期间运行install.

#!/usr/bin/env python

import os
import setuptools
from distutils.command.build import build


SETUP_DIR = os.path.dirname(os.path.abspath(__file__))


class BuildCSS(setuptools.Command):
    description = 'build CSS from SCSS'

    user_options = []

    def initialize_options(self):
        pass

    def run(self):
        os.chdir(os.path.join(SETUP_DIR, 'django_project_dir', 'compass_project_dir'))
        import platform
        if 'Windows' == platform.system():
            command = 'compass.bat compile'
        else:
            command = 'compass compile'
        import subprocess
        try:
            subprocess.check_call(command.split())
        except (subprocess.CalledProcessError, OSError):
            print 'ERROR: problems with compiling Sass. Is Compass installed?'
            raise SystemExit
        os.chdir(SETUP_DIR)

    def finalize_options(self):
        pass


class Build(build):
    sub_commands = build.sub_commands + [('build_css', None)]


setuptools.setup(
    # Custom attrs here.
    cmdclass={
        'build': Build,
        'build_css': BuildCSS,
    },
)

任何自定义指令Build.run(例如某些打印)也不适用install,但dist实例commands仅在属性中包含我的build命令实现实例.难以置信!但我认为问题在于setuptools和之间的复杂关系distutils.有没有人知道如何install在Python 2.7上运行自定义构建？

更新:发现install肯定没有调用build命令,但它调用bdist_egg哪个运行build_ext.好像我应该实现"Compass"构建扩展.

Answer 1

不幸的是,我还没有找到答案.似乎只能在Distutils 2上正确运行安装后脚本的能力.现在您可以使用此解决方法:

更新:由于setuptools的堆栈检查,我们应该覆盖install.do_egg_install,而不是run方法:

from setuptools.command.install import install

class Install(install):
    def do_egg_install(self):
        self.run_command('build_css')
        install.do_egg_install(self)

Update2: easy_install运行完全bdist_egg由命令使用的命令install,因此最正确的方法(特别是如果你想要easy_install工作)是覆盖bdist_egg命令.整码:

#!/usr/bin/env python

import setuptools
from distutils.command.build import build as _build
from setuptools.command.bdist_egg import bdist_egg as _bdist_egg


class bdist_egg(_bdist_egg):
    def run(self):
        self.run_command('build_css')
        _bdist_egg.run(self)


class build_css(setuptools.Command):
    description = 'build CSS from SCSS'

    user_options = []

    def initialize_options(self):
        pass

    def finalize_options(self):
        pass

    def run(self):
        pass # Here goes CSS compilation.


class build(_build):
    sub_commands = _build.sub_commands + [('build_css', None)]


setuptools.setup(

    # Here your setup args.

    cmdclass={
        'bdist_egg': bdist_egg,
        'build': build,
        'build_css': build_css,
    },
)

你可能会看到我在这里如何使用它.