Re: [PATCH 3/3] clone: auto-enable git-credential-store when necessary

["Ævar Arnfjörð Bjarmason" <avarab@gmail.com>]

On Mon, May 20 2019, Jeff King wrote:

> On Mon, May 20, 2019 at 03:56:14PM +0200, Ævar Arnfjörð Bjarmason wrote:
>
>> > -test_expect_failure 'fetch of password-URL clone uses stored auth' '
>> > +test_expect_success 'fetch of password-URL clone uses stored auth' '
>> >  	set_askpass wrong &&
>> >  	git -C clone-auth-none fetch &&
>> >  	expect_askpass none
>>
>> I've only looked at this very briefly, there's a regression here where
>> you're assuming that having a configured credential helper means it
>> works.
>>
>> I.e. I have a ~/.gitconfig where I point to some-gnome-thing-or-other
>> what doesn't exist on my VPS in my ~/.gitconfig, cloning just warns
>> about it being missing, but will store the password in the repo.
>>
>> With this you detect that I have the helper, don't store it, but then my
>> helper doesn't work, whereas this worked before.
>
> There are more cases beyond that, too. You might have a helper defined
> which doesn't actually store passwords, but just sometimes tries to
> provide one. My thinking was that if you're clueful enough to have
> configured helpers, you can probably deal with the fallout. But you're
> right that it may still be a regression in the sense that the user may
> still have to actually _do_ something to get their fetch to work.
>
> I guess a more robust version of this is that _after_ the successful
> clone, we could ask the credential system "hey, do you have the
> credential for $URL?". And if it can't answer, then we can take action
> (whether that action is setting up credential-store and seeding it with
> the password, or just advising the user about the situation).
>
> -Peff

Yeah I don't mean deal with some there-but-broken helper, but this:

    /usr/share/doc/git/contrib/credential/gnome-keyring/git-credential-gnome-keyring:
    not found

Until then the observable effect of that has been to make the
credential.helper config a noop, but now it's causing "we have a helper"
behavior.