# smudge filter problem

1 messages from 2009-03-01 to 2009-03-01. Participants: bill lam.
Thread: https://gitlist.dev/t/18076

## bill lam, 2009-03-01 10:18

Subject: smudge filter problem
Message-ID: <20090301101823.GA7466@b2j>
URL: https://gitlist.dev/e/20090301101823.GA7466%40b2j

```
I track xls by using filter to convert it to gnumeric format. Inside gitconfig
[filter "excelbiff"]
  clean = ssconvert --export-type=Gnumeric_XmlIO:sax fd://0 fd://1 | zcat -f
  smudge = ssconvert --export-type=Gnumeric_Excel:excel_biff8 fd://0 fd://1
and xls set inside gitattribute

While the clean filter works, the smudge filter does not. When git-checkout it said seek error 
 git ckeckout foo.xls

However git-show works as pipe to ssconvert
 git show HEAD:foo.xls | ssconvert --export-type=Gnumeric_Excel:excel_biff8 fd://0  newfoo.xls

I guess ssconvert was mistaken to believe that all data has been flushed too soon.

I tested with an xls that converted to gnumeric uncompress file size about 10MB and libgsf 1.14.11

PS. for older libgsf it needs to using a temp file to buffer data for ssconvert instead of using fd://0

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```