Re: [PATCH v2 14/14] Add git-check-ignore sub-command

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Johannes Sixt <j.sixt@xxxxxxxxxxxxx> writes:

> Am 9/20/2012 21:46, schrieb Adam Spiers:
>>  test_expect_success 'general options plus command' '
>> -	test_completion "git --version check" "checkout " &&
>> -	test_completion "git --paginate check" "checkout " &&
>> -	test_completion "git --git-dir=foo check" "checkout " &&
>> -	test_completion "git --bare check" "checkout " &&
>> +	test_completion "git --version checko" "checkout " &&
>> +	test_completion "git --paginate checko" "checkout " &&
>> +	test_completion "git --git-dir=foo checko" "checkout " &&
>> +	test_completion "git --bare checko" "checkout " &&
>> ...
>
> I find this worrysome. Is check-ignore, being a debugging aid, so
> important that it must be autocompleted?

The shell function __git_list_porcelain_commands in contrib/completion/
starts from "git help -a" and filters plumbing commands and helpers
via a blacklist.  At least, check-ignore needs to be added there.

These days, we do not add random subcommands willy-nilly (I still
doubt if check-ignore needs to be a separate debugging command, or a
new mode of operation of ls-files or something), so the approach to
use a blacklist makes more sense.  "help -a" is designed to show
whatever the users throw in their ~/bin (assuming that is on $PATH)
under git-whatever name, and we _do_ want to complete "git wh<TAB>"
to that custom command, so a whitelist-based solution is unwieldy to
construct.
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