在VariantDir()环境中使用Glob()在Python中以递归方式查找文件？

如何在Python的VariantDir()环境中制作递归的Glob()？

来自问题< Use a Glob() to find files recursively in Python?>的答案；将无法使用,因为您需要使用Glob()来获取知道VariantDir()环境的文件列表.

因此,您需要类似：

import fnmatch
import os

matches = []
for root, dirnames, filenames in os.walk('src'):
  for filename in fnmatch.filter(filenames, '*.c'):
    matches.append(os.path.join(root, filename))

matches = Glob(matches)

这样行吗？

解决方法:

您的方法可以进行较小的调整,如下所示：

import fnmatch
import os

def RecursiveGlob(pathname)
    matches = []
    for root, dirnames, filenames in os.walk(pathname):
        for filename in fnmatch.filter(filenames, '*.c'):
            matches.append(File(os.path.join(root, filename)))

    return matches

注意,我将其转换为File(),因为如果“ strings”参数为false,SCons Glob()函数将返回Nodes.

为了能够处理VariantDir等并更好地将功能与现有SCons Glob()功能集成在一起,您实际上可以将对现有Glob()函数的调用并入,如下所示：

# Notice the signature is similar to the SCons Glob() signature,
# look at scons-2.1.0/engine/SCons/Node/FS.py line 1403
def RecursiveGlob(pattern, ondisk=True, source=True, strings=False):
    matches = []
    # Instead of using os.getcwd() consider passing-in a path
    for root, dirnames, filenames in os.walk(os.getcwd()):
        cwd = Dir(root)
        # Glob() returns a list, so using extend() instead of append()
        # The cwd param isnt documented, (look at the code) but its 
        # how you tell SCons what directory to look in.
        matches.extend(Glob(pattern, ondisk, source, strings, cwd))

    return matches

您可以更进一步,并执行以下操作：

def MyGlob(pattern, ondisk=True, source=True, strings=False, recursive=False):
    if not recursive:
        return Glob(pattern, ondisk, source, strings)

    matches = []
    # Instead of using os.getcwd() consider passing-in a path
    for root, dirnames, filenames in os.walk(os.getcwd()):
        cwd = Dir(root)
        # Glob() returns a list, so using extend() instead of append()
        # The cwd param isnt documented, (look at the code) but its 
        # how you tell SCons what directory to look in.
        matches.extend(Glob(pattern, ondisk, source, strings, cwd))

    return matches

标签：python,scons
来源： https://codeday.me/bug/20191201/2078990.html