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From: Stef Bon <stefbon@gmail.com>
To: Chris Murphy <lists@colorremedies.com>
Cc: Btrfs BTRFS <linux-btrfs@vger.kernel.org>
Subject: Re: Get the diff from a file in two snapshots.
Date: Tue, 27 Jan 2015 00:43:52 +0100	[thread overview]
Message-ID: <CANXojcxps7KPRC2dbfU7hFvUDzkK2CmT4EroDrO6HO56h7j3cg@mail.gmail.com> (raw)
In-Reply-To: <CAJCQCtRyv+m0kxBL6LW=xZv=sUzf2to4R6xPsxy6CkihHmrV0A@mail.gmail.com>

2015-01-26 22:14 GMT+01:00 Chris Murphy <lists@colorremedies.com>:
>> is there a way to get the difference between these two files by making
>> use of btrfs?
>
> Snapper has this functionality built into it. I'm not sure if it uses
> diff or something else. But the Snapper GUI in yast2 on opensuse will
> let you see what files have changed between snapshots, click on the
> file and it shows a color coded diff.

Hi Chris,

I think (I'm not sure) it's using a high level tool like diff/rdiff.

I will contact the developers of snapper anyway, since my project is
simular to theirs.

But what I'm asking is is there a lowlevel tool to give you a list of
blocks where two versions
of one file differ. I'm asking since btrfs keeps track of the blocks
where files differ, and where they
are the same.

So a lowlevel call to the btrfs filesystem.

Stef

  reply	other threads:[~2015-01-26 23:43 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-26 20:52 Get the diff from a file in two snapshots Stef Bon
2015-01-26 21:14 ` Chris Murphy
2015-01-26 23:43   ` Stef Bon [this message]
2015-01-28  3:46     ` Zygo Blaxell
2015-01-28 10:28       ` Stef Bon

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