Re: documentation for committing with git

From: Daniel Farina <drfarina(at)acm(dot)org>
To: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: documentation for committing with git
Date: 2010-08-05 02:08:33
Message-ID: AANLkTi=Sb4=LsiDK-Xn21C6n5i_L0kOVvdcXz7ThTQfV@mail.gmail.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

On Wed, Aug 4, 2010 at 6:29 AM, Heikki Linnakangas
<heikki(dot)linnakangas(at)enterprisedb(dot)com> wrote:
> All those issues can be avoided if you only run "git gc" when all the
> working directories are in a clean state, with no staged but uncommitted
> changes or other funny things. I can live with that gun tied to my ankle
> ;-).

Does even that open a possibility for data loss?

Use of the alternates feature will, to my knowledge, never write the
referenced repository: all new objects are held in the referencers.
The only condition as I understand it is not to generate garbage in
the reference repository, and that nominally does not happen in a repo
that exists only to be an object pool (you probably even want to use a
"bare" repository instead of one with checked out files).

I believe this feature is popular with hosting serving many repos of
the same project.

The especially paranoid may want to try setting their alternate,
referenced repository to be read-only with respect to the user doing
all the potentially-modifying work, undoing this if and when they feel
like adding more objects to the referenced repository. My guess is one
can do a clean checkout and then ride this strategy for quite a long
time (a year? more? it depends on how space-conscious one is), so that
would not be a incredibly onerous paranoia, if one has it.

fdr

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message Tom Lane 2010-08-05 02:31:48 Re: review: psql: edit function, show function commands patch
Previous Message Robert Haas 2010-08-05 02:00:32 Re: Using Small Size SSDs to improve performance?