78 lines
2.1 KiB
Python
78 lines
2.1 KiB
Python
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# a module to help with handling of filenames, directory trees, etc.
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import os
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import os.path
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import stat
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def pathsubtract(a, b):
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index = a.find(b)
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if index == -1:
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return None
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res = a[ (index + len(b)): ]
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if res.find("/") == 0:
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res = res[1:]
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return res
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# same as C strcmp()
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def strcmp(a, b):
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if a < b:
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return -1
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if a > b:
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return 1
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return 0
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class TreeNode:
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# path is the location of the file/directory. It is either a full path or
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# a path relative to $PWD
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def __init__(self, parent, path=".", root=".", isofile=None):
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if isofile:
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self.root = os.path.abspath(isofile)
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self.path = ""
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else:
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fullpath = os.path.abspath( path )
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fullroot = os.path.abspath( root )
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self.root = fullroot
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self.path = pathsubtract( fullpath, fullroot )
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self.parent = parent
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self.children = []
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if self.path == None:
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raise NameError, "Invalid paths %s and %s" % (fullpath, fullroot)
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# if this is a directory, add its children recursively
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def addchildren(self):
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if not stat.S_ISDIR( os.lstat(self.root + "/" + self.path).st_mode ):
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return
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children = os.listdir( self.root + "/" + self.path )
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for child in children:
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if self.path:
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child = self.path + "/" + child
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self.children.append( TreeNode(self, child, self.root) )
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for child in self.children:
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child.addchildren()
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def printAll(self, spaces=0):
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print " "*spaces + self.root + "/" + self.path
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for child in self.children:
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child.printAll(spaces + 2)
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def isValidISO1(self):
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pass
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class Tree:
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def __init__(self, root=None, isofile=None):
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if isofile:
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self.root = TreeNode(parent=None, isofile=isofile)
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else:
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self.root = TreeNode(parent=None, path=root, root=root)
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self.root.addchildren()
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def isValidISO1(self):
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return root.isValidISO1();
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#t = Tree(root=".")
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#t.root.printAll()
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