python在工厂中的应用_python中的工厂方法

简而言之，它的目标是更容易地管理许多不同的项目。

其中一个有用的方法是自动检测我正在工作的项目类型，正确设置一些命令。在

目前我正在使用一个classmethod“match”函数和一个遍历各种“match”的detect函数。

我肯定有更好的设计，但是找不到。在

有什么想法吗？在class ProjectType(object):

build_cmd = ""

@classmethod

def match(cls, _):

return True

class PythonProject(ProjectType):

build_cmd = "python setup.py develop --user"

@classmethod

def match(cls, base):

return path.isfile(path.join(base, 'setup.py'))

class AutoconfProject(ProjectType):

#TODO: there should be also a way to configure it

build_cmd = "./configure && make -j3"

@classmethod

def match(cls, base):

markers = ('configure.in', 'configure.ac', 'makefile.am')

return any(path.isfile(path.join(base, x)) for x in markers)

class MakefileOnly(ProjectType):

build_cmd = "make"

@classmethod

def match(cls, base):

# if we can count on the order the first check is not useful

return (not AutoconfProject.match(base)) and \

(path.isfile(path.join(base, 'Makefile')))

def detect_project_type(path):

prj_types = (PythonProject, AutoconfProject, MakefileOnly, ProjectType)

for p in prj_types:

if p.match(path):

return p()