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List:       git
Subject:    Re: [script] find largest pack objects
From:       Antony Stubbs <antony.stubbs () gmail ! com>
Date:       2009-08-31 13:25:57
Message-ID: C0EFE78F-97D6-4287-832A-568AA07031A7 () gmail ! com
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Sorry Nicolas,
Completely missed your message amongst the torrent of the git mailing  
list - which I'm now unsubscribed from.. But sure, I'll ad this to my  
todo list :)

Cheers,
Antony Stubbs,

sharca.com

On 10/07/2009, at 5:34 AM, Nicolas Pitre wrote:

> On Fri, 10 Jul 2009, Antony Stubbs wrote:
> 
> > Blog post about git pruning history and finding large objects in  
> > your repo:
> > http://stubbisms.wordpress.com/2009/07/10/git-script-to-show-largest-pack-objects-and-trim-your-waist-line/
> >  
> > This is a script I put together after migrating the Spring Modules  
> > project
> > from CVS, using git-cvsimport (which I also had to patch, to get to  
> > work on OS
> > X / MacPorts). I wrote it because I wanted to get rid of all the  
> > large jar
> > files, and documentation etc, that had been put into source  
> > control. However,
> > if _large files_ are deleted in the latest revision, then they can  
> > be hard to
> > track down.
> > 
> > #!/bin/bash
> > #set -x
> > 
> > # Shows you the largest objects in your repo's pack file.
> > # Written for osx.
> > #
> > # @see
> > http://stubbisms.wordpress.com/2009/07/10/git-script-to-show-largest-pack-objects-and-trim-your-waist-line/
> >  # @author Antony Stubbs
> > 
> > # set the internal field spereator to line break, so that we can  
> > iterate
> > easily over the verify-pack output
> > IFS=$'\n';
> > 
> > # list all objects including their size, sort by size, take top 10
> > objects=`git verify-pack -v .git/objects/pack/pack-*.idx | grep -v  
> > chain |
> > sort -k3nr | head`
> > 
> > echo "All sizes are in kB's. The pack column is the size of the  
> > object,
> > compressed, inside the pack file."
> > 
> > output="size,pack,SHA,location"
> > for y in $objects
> > do
> > 	# extract the size in bytes
> > 	size=$((`echo $y | cut -f 5 -d ' '`/1024))
> > 	# extract the compressed size in bytes
> > 	compressedSize=$((`echo $y | cut -f 6 -d ' '`/1024))
> > 	# extract the SHA
> > 	sha=`echo $y | cut -f 1 -d ' '`
> > 	# find the objects location in the repository tree
> > 	other=`git rev-list --all --objects | grep $sha`
> > 	#lineBreak=`echo -e "\n"`
> > 	output="${output}\n${size},${compressedSize},${other}"
> > done
> > 
> > echo -e $output | column -t -s ', '
> 
> This is certainly useful.  Mind submitting a patch adding this  
> script to
> contrib/stats/ ?
> 
> 
> Nicolas

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