Re: [PATCH] clean: confirm before cleaning files and directories

[Jiang Xin <worldhello.net@gmail.com>]

2013/4/26 Matthieu Moy <Matthieu.Moy@grenoble-inp.fr>:
> Jiang Xin <worldhello.net@gmail.com> writes:
>
>> Maybe we can do like this:
>>
>> 1. Set the default value of 'clean.requireForce' to false.
>> 2. Show a error message and do nothing, if there is not 'clean.requireForce'
>>     setting, but the user called with a '--force' flag.
>>     ( like a transition for the change of push.default in git 2.0)
>
> Perhaps introducing a new value for 'clean.requireForce':
>
> $ git config --global clean.requireForce ask
> $ git clean
> .will remove ...
> are you sure [y/N]?
>
> The error message when clean.requireForce is unset and --force is not
> given could point the user to clean.requireForce=ask.

Add new value for clean.requireForce would break old git clent.

   $ git clean
   fatal: bad config value for 'clean.requireforce' in .git/config

>
> Then, maybe, later, this could become the default. But I tend to like
> the non-interactive nature of most Git commands, so I'm a bit reluctant
> here. My way of doing the confirmation dialog is
>
> $ git clean -n
> would remove ...
> $ git clean -f
>

I try to put all cases in one table, but still looks weird.

    | clean.requireForce  |     git clean     | git clean --force |
    +---------------------+-------------------|-------------------|
    | TRUE                | error             | delete...         |
    +---------------------+-------------------|-------------------|
    | FALSE               | delete...         | delete...         |
    +---------------------+-------------------|-------------------|
    | unset               | confirm           | warn + confirm    |
    +---------------------+-------------------|-------------------|

Does anyone really set and use "clean.requireForce" setting?
And if there is a confirm dialog, do we need 'clean.requireForce' any more?
Or we can add a `--no-ask` option, in order to override the confirm dialog.


> --
> Matthieu Moy
> http://www-verimag.imag.fr/~moy/



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