On Sun, Dec 06, 2015 at 09:31:06PM -0800, Yuri wrote:
> Why "operation is not supported" through http and https? 'archive' is
> supposed to be the most efficient operation to get the specific snapshot of
> the repository, and it should be available without authentication.
Remote git-archive is not well-supported. It does work over git-daemon,
but the server side has to explicitly turn it on in their config. It was
never plumbed into the git-over-http protocol at all. ssh is generally
the only place it works out-of-the-box (but see below).
> In case of ssh with the key there is the strange error message about
> "core.gitProxy". What is this about? I am not using a proxy.
> [...]
> # through ssh with an active ssh key
> $ git archive --format=tar --remote=g...@github.com:yurivict/vm-to-tor.git
> Invalid command: 'git-upload-archive 'yurivict/vm-to-tor.git''
> You appear to be using ssh to clone a git:// URL.
> Make sure your core.gitProxy config option and the
> GIT_PROXY_COMMAND environment variable are NOT set.
> fatal: The remote end hung up unexpectedly
This message isn't from git, but rather from GitHub's ssh server. You
can see it here without running git locally at all:
$ ssh g...@github.com git-upload-archive
Invalid command: 'git-upload-archive'
You appear to be using ssh to clone a git:// URL.
Make sure your core.gitProxy config option and the
GIT_PROXY_COMMAND environment variable are NOT set.
The short of it is that GitHub does not support remote git-archive at
all, not even over ssh. Part of the reason is that it maintains a
separate caching layer for grabbing zips and tarballs, which is
available at an http endpoint:
https://github.com/yurivict/vm-to-tor/archive/master.tar.gz
Clearly the advice above is not helpful in this case; I don't recall the
case that it was originally written to help. You may want to write to
GitHub support about it.
> # through ssh without an ssh key
> $ git archive --format=tar --remote=g...@github.com:yurivict/vm-to-tor.git
> Permission denied (publickey).
> fatal: The remote end hung up unexpectedly
GitHub's ssh server only accepts key authentication, so this is not
surprising.
> # through https
> $ git archive --format=tar
> --remote=https://github.com/yurivict/vm-to-tor.git
> fatal: Operation not supported by protocol.
>
> # through http
> $ git archive --format=tar
> --remote=http://github.com/yurivict/vm-to-tor.git
> fatal: Operation not supported by protocol.
This comes from the local git client. There's no scheme defined for
hitting git-upload-archive (the server side of a remote git-archive)
over HTTP. You'd have to define it, implement the client side of it, and
then convince the server side to configure their HTTP servers to handle
it as a CGI. That might be a nice project to work on, but it will not
get you tarballs anytime soon. :)
-Peff
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