Re: Mercurial vs Updated git HOWTO for kernel hackers

From: Sean <seanlkml@sympatico.ca>
Date: Jun 28, 2005, 20:45 UTC
Message-ID: <3886.10.10.10.24.1119991512.squirrel@linux1>
In-Reply-To: <62CF578B-B9DF-4DEA-8BAD-041F357771FD@mac.com>

On Tue, June 28, 2005 4:27 pm, Kyle Moffett said:

Show 9 quoted lines

> On Jun 28, 2005, at 14:01:57, Matt Mackall wrote:
>> Everything in Mercurial is an append-only log. A transaction journal
>> records the original length of each log so that it can be restored on
>> failure.
>
> Does this mean that (excepting the "undo" feature) one could set the
> ext3 "append-only" attribute on the repository files to avoid losing
> data due to user account compromise?
>

Probably. In Git, which is a bit more flexible than Mecurial you can chmod your objects to read-only or use the ext3 immutable setting to protect your existing objects. You can even have a setup where objects are archived onto write-once media like DVD and still participate in a live repository, where new objects are written to hard disk, but older object are (automatically) sourced from the DVD.

Sean