From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andreas Gruenbacher <agruen@suse.de>
Subject: Re: [RFC][PATCH 0/3] Different views on a repository
Date: Fri, 26 Feb 2010 13:01:39 +0100
Organization: SUSE Labs
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References: <cover.1267029680.git.agruen@suse.de> <c376da901002252012s507a6921q922e606bdce4b4fa@mail.gmail.com>
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To: Adam Brewster <adambrewster@gmail.com>
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On Friday 26 February 2010 05:12:45 Adam Brewster wrote:
> The idea was to push from all of my repositories into a super repository
> with a fancy (and auto-generated) refspec.  The actual code is
> impenetrable, but reconstructing it in everybody's favorite IDE, gmail, I
> came up with
> 
> #!/bin/bash
> PROJECTS=$HOME/projects
> SUPER=$HOME/projects/.git-super-repo
> 
> [[ -d "$SUPER" ]] || \
>   (mkdir "$SUPER"; git --git-dir="$SUPER" init)
> 
> for i in $PROJECTS/*/.git; do
>   name=$(basename "$(dirname "$0")")
>   echo "$SUPER/objects" > $i/.git/objects/info/alternates
>   git --git-dir="$i" push -f "$SUPER" "*:refs/$name/*"
> done
> 
> git --git-dir="$SUPER" gc --aggressive
> 
> for i in $PROJECTS/*/.git; do
>   git --git-dir="$i" repack -Ad #unnecessary?
>   git --git-dir="$i" gc --aggressive
> done

I see, when multiple projects share the same objects, you push them into those 
projects independently first, and the script will later move them to $SUPER.

> Clearly I can lose data if I try to rebase $SUPER or something, but I think
> it's pretty safe for normal use.

It looks safe unless somebody messes with $SUPER.  A lot of repacking will 
still occur as part of moving stuff to $SUPER, though.

I was trying to set things up so that this extra work won't be necessary in 
the first place.

Thanks!

Andreas