How to get commit content?

[Anna Mihailovskaya]

Hi!

I'm trying to implement a codestyle hook for stash. For this reason I need a content of commit. In a documentation for the plugin I saw little reference about this opportunity:

"Specified executables will receive "$from_ref $to_ref $ref_name" lines on stdin (see "man githooks"). "

Anybody knows, how I can get it? Variables $1 $2 $3 and $from_ref $to_ref $ref_name give nothing. 

[Stanislav Seletskiy]

Please see example test script in wiki: https://github.com/ngsru/atlassian-external-hooks/wiki/Example.-Test-script

This little example shows how you can obtain all information you needed.