Re: [RFC] Add way to make Git credentials accessible from clean/smudge filter

[Lars Schneider <larsxschneider@gmail.com>]

On 11 Nov 2016, at 10:31, Jeff King <peff@peff.net> wrote:

> On Fri, Nov 11, 2016 at 10:28:56AM +0100, Lars Schneider wrote:
> 
>>> Yeah, that is the solution I was going to suggest. The credentials are
>>> totally orthogonal to the filters, and I would rather not shove them
>>> into the protocol. It's an extra process, but with the new multi-use
>>> smudge filter, it's one per git invocation, not one per file.
>> 
>> The trouble with "git credential" is that it works only if the credential 
>> helper is setup correctly. Although I assume that most people have setup this, 
>> I have also worked with a number of people who prefer to enter their passwords 
>> every time Git makes a network connection.
> 
> Are you sure about that? If I do:
> 
>  echo url=https://example.com/repo.git |
>  git credential fill
> 
> I get prompted for a username and password.

Hm.. either I don't understand you or I expressed myself unclear. 

Let's say a user runs:

$ git clone https://myrepo.git

If no credential helper is setup, then Git asks the user for credentials.
Afterwards Git starts downloading stuff. At some point Git will run my
smudge filter on some files and in my case the smudge filter needs the
Git credentials. AFAIK, the smudge filter has no way to get the credentials 
from Git at this point - not even by invoking "git credential". 
Is this correct?

- Lars