Quoting Junio C Hamano [off-list ref]:

Christian MICHON [off-list ref] writes:

quoted

I'd like to force the commit date to match the info/date from the time
I received the email (and therefore always get back the right
sha1sums).

is this possible ?

"am" being a tool to accept patches written in some past to faithfully
record both author timestamp and committer timestamp, what you seem to
want is outside of the current scope of the tool.

A patch to butcher "git-am" to copy GIT_COMMITTER_DATE from
GIT_AUTHOR_DATE and export it should be trivial to implement, though.

Perhaps something like this totally untested patch.

You have test scripts already, but you say it is untested?

I often wanted to have an opposite of what Christian wants. I always have some changes I am holding off, and when I decide to trickle them out to the main repository, I do not want the resulting commit to carry old dates that are recorded in the format-patch output. Instead I want to pretend that I worked on them today. Is this something you can teach git-am and git-rebase to do easily?

-- 
Nanako Shiraishi
http://ivory.ap.teacup.com/nanako3/