We use GitCop to check that commit messages are properly written. The rules are the following:
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The first line of a commit message, called the subject line should not be more than 80 characters long.
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The commit message should end with the following trailers:
Licence: MIT Signed-off-by: User Name <email@address>where "User Name" is the author's real name and email@address one of the author's valid email addresses.
These trailers mean that the author agrees with the following document (which comes from http://developercertificate.org/):
developer-certificate-of-origin
and with licensing the work under the MIT license available in the following file:
To help you automatically add these trailers, you can run the following script:
which will setup a Git commit-msg hook that will add the above trailers to all the commit messages you write.