pre-commit: How can I do some checks on a file befor finishing the transaction?

Hi,

how can I do some checks on a file before it is stored or updated in a
new revision?

Actually, I have a script which checks if a file contains tabs. If this
is the case, then it should not be possible finish the transaction.
I know that I have to do this with an hook (pre-commit) but there I have
only the transaction ID and repository name and I don't know how to
access the content of the file to commit...

Can anybody explain the best way to do this?

thx & regards,

Volker

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Received on Mon Jan 10 16:27:34 2005