On Mon, Mar 04, 2013 at 03:00:45PM -0800, Junio C Hamano wrote:
> So if you want a single boolean to toggle between the current
> behaviour and the other one, it would be --post-order. But you may
> at least want to consider pros and cons of allowing users to give
> two separate commands, one for the pre-order visitation (which is
> the current "command") and the other for the post-order
> visitation. Being able to run both might turn out to be useful.
I second that. Having a --post-order=<command/script> switch will give
us much more flexibility. For ease of use we could allow --post-order
without command to switch the meaning of the main command.
So a final solution would have these switches:
git submodule foreach ... [--pre-order[=<command>]] [--post-order[=<command>]]
[<command>]
If only --pre-order without argument is given the command will be
executed pre-order. If only --post-order the command will be executed
post-order. If both are given its an error and so on...
There are some combinations we would need to catch as errors but this
design should allow a step by step implementation:
1. just the --post-order switch
2. --post-order with argument switch
3. --pre-order (including argument) for symmetry of usage
Cheers Heiko
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