Validate against an Eclipse formatting profile from command line

I'm looking for a way to verify Java code against an Eclipse code formatting profile from the command line. The goal is to create a Mercurial hook which rejects any commit that doesn't match the profile. Is there a way to do this?

I'm aware of the possibility to call Eclipse's formatter from the command line. What I'm looking for is something which just validates (yes/no). I guess I could use the formatter and then compare the two, but it seems like a clumsy approach.

Background: The reason we want to try this is because we currently get many unnecessary merge conflicts because of formatting differences. We have an environment where multiple IDE:s are used, although only one is officially suppo开发者_如何学Crted. We want to enforce the official profile, and everyone can continue using the tools they prefer as long as they set it up to format the code correctly.

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In brief, follow those steps:

1. Duplicate the original Java file in a temporary place ;
2. Format the temporary duplicate using the Eclipse Java code formatter ;
3. Check whether the files are identical or not.

Tricks to help you out:

• To call the Eclipse Java code formatter from command line, see Formatting your code using the Eclipse code formatter.
• To know whether files are identical, using the diff utility: diff --text --quiet >/dev/null, the error code will tell you what you're seeking for.