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- From: rwright@dhostwo.convex.com (Randy Wright)
- Subject: tar 1.11.1 enhancement idea
- Message-ID: <9210121515.AA09459@dhostwo.convex.com>
- Sender: gnulists@ai.mit.edu
- Reply-To: rwright@convex.com
- Organization: Convex Computer Corporation
- Distribution: gnu
- Date: Mon, 12 Oct 1992 15:15:41 GMT
- Approved: bug-gnu-utils@prep.ai.mit.edu
- Lines: 23
-
- Hello again!
-
- It seems to me that when extracting files from an archive with the
- -S/--sparse flag, it would be a nice feature to be able to create the
- files sparsely where appropriate, regardless of whether the archive was
- created with the -S/--sparse flag. I have in fact made such an
- enhancement here that I'd be happy to submit if there's interest at
- your end. All that's necessary is to be willing to trade a bit of
- processor time for potential disk space savings - we see if each
- block of extracted data is composed entirely of zero's and lseek
- the output file as appropriate if so. Blocks are defined,
- for BSD-derived systems, by the blocksize of the target file system.
- (I guess the V7/old USG blocksize should be a fixed 512, right?)
-
- Let me know if you're interested in this enhancement - I can send
- it along if so.
-
- --
- Randy Wright Usmail: Convex Computers
- Phone: (214) 497-4868 3000 Waterview Pky. M/S DV4
- Email: rwright@convex.com P.O. Box 833851
- Richardson, TX 75083-3851
-
-