RE: possible 100% java implentation for chdir

Of course this requires all file system access to pass through

your CD class.  You can't do something like this:

 

cDir.cd("aDirectory")

f=open("aFile")

 

and expect to have opened aDirectory/aFile.  So open might be

able to be rewritten to use the current directory in cDir.  You

still wouldn't get the desired results with

 

cDir.cd("aDirectory")

fis=java.io.FileInputStream("aFile")

 

 

-----Original Message-----
From: Updike, Clark [mailto:Clark.Updike@xxxxxxxxxx]
Sent: Friday, January 23, 2004 12:34 PM
To: jython-dev@xxxxxxxxxxxxxxxxxxxxx
Subject: [Jython-dev] possible 100% java implentation for chdir

I realize chdir is not a high priority and there have been postings

saying that a 100% java implementation is not possible--however, I

(perhaps naively) suggest it is possible and provide source (attached). 

 

Would this be of interest to give jython a chdir?

 

ref: http://sourceforge.net/mailarchive/message.php?msg_id=1287972

 

-Clark

 

 

Sample jython session (assumes presence of dir C:\temp):

 

Jython 2.1 on java1.3.1_01 (JIT: null)
Type "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys.path.append("C:\\temp")
>>> import CurrentDir as CD
>>> cDir = CD("C:\\temp")
>>> cDir.mkdir("aDirectory")
1
>>> cDir.cd("aDirectory")
>>> cDir.mkdir("test")
1
>>> cDir.cd("test")
>>> from java.io import File
>>> File(cDir.toFile(), "dummy.txt").createNewFile()
1
>>> cDir.list()
array(['dummy.txt'], java.lang.String)
>>> cDir.delete("dummy.txt")
1
>>> cDir.list()
array([], java.lang.String)
>>> cDir.renameTo("test_renamed")
1
>>> cDir.cd("..")
>>> cDir.list()
array(['test_renamed'], java.lang.String)
>>> cDir.delete("test_renamed")
1
>>> cDir.cd("..")
>>> cDir.delete("aDirectory")
1
>>>