Re: Action stamps

[Jason Merrill <jason at redhat dot com>]

On 08/26/2015 01:11 PM, Eric S. Raymond wrote:
> What I usually do with old commit references in comments is map them
> to what I call an "action stamp" - a user ID followed by an RFC3339
> date.  While this is theoretically not quite adequate, in practice
> collisions are rare to nonexistent.

For general identification of commits, as with references automatically 
added to Bugzilla and such, that makes a lot of sense.  So in a git 
format string, %ce and %cI.  And we can map back from such a stamp to 
the commit by specifying --author as well as --until; is that what you do?

For Jakub or anyone else wanting a key to associate a file with a 
commit, they can decide for themselves what date format they want to use 
and whether to bother with the user id.  I would think that if he is 
only interested in commits on the trunk (and so should use log 
--first-parent), the timestamp is sufficient.

Jason