On Thu, 30 Nov 2017, Nicolas Morey-Chaisemartin wrote:

> This is due to the weird "[Gmail]" prefix in the folder.
> I tried manually replacing it with:
>         folder = %5BGmail%5D/Drafts
> in .git/config and it works.
>
> curl is doing some fancy handling with brackets and braces. It make sense 
> for multiple FTP downloads like ftp://ftp.numericals.com/file[1-100].txt, 
> not in our case. The curl command line has a --globoff argument to disable 
> this "regexp" support and it seems to fix the gmail case. However I couldn't 
> find a way to change this value through the API...

That's just a feature of the command line tool, "globbing" isn't a function 
provided by the library. libcurl actually "just" expects a plain old URL.

But with the risk of falling through the cracks into the rathole that is "what 
is a URL" (I've blogged about the topic several times in the past and I will 
surely do it again in the future):

A "legal" URL (as per RFC 3986) does not contain brackets, such symbols should 
be used URL encoded: %5B and %5D.

This said: I don't know exactly why brackets cause a problem in this case. It 
could still be worth digging into and see if libcurl could deal with them 
better here...

-- 

  / daniel.haxx.se