Re: [Qemu-devel] https:// for GIT submodules / "smart" HTTP protocol on git.qemu.git

["Daniel P. Berrangé" <berrange@redhat.com>]

On Mon, Mar 19, 2018 at 04:49:39PM +0000, Daniel P. Berrangé wrote:
> Most of QEMU regular developers are fortunate to have unfiltered internet
> access which allows using the git:// protocol. People working in more
> old fashioned / paranoid environments often find access to anything other
> than http(s) blocked by firewalls. They'll get a bad experiance when trying
> to build QEMU, when we try to initialize the git submodules and git://
> protocol fails to connect.
> 
> We could improve life for people behind such nasty firewalls if we made our
> GIT submodules use https:// URIs, instead of git:// URIs. There is one snag.
> 
> Historically git:// URIs were strongly preferred over http(s):// URIs for
> reasons for performance. Modern GIT though, supports both the traditional
> "dumb" HTTP protocol (which is horribly slow) and a modern "smart" HTTP
> protocol whose performance matches that of git:/// URIs.
> 
> Unfortunately it seems that git.qemu.org is not configured to enable the
> smart HTTP protocol.
> 
> So can we get a todo item for git.qemu.org get the web server setup to
> enable the smart GIT protocol, so we can then enable use of http:// by
> default for all the submodules to improve life for contributors.

FYI this doesn't seem to take much more than adding this to Apache
config:

  SetEnv GIT_PROJECT_ROOT /path/to/git/projects/root

  <Directory /usr/libexec/git-core>
   Require all granted
  </Directory>

  ScriptAliasMatch "^/git/(.*\.git/(HEAD|info/refs))$" \
    /usr/libexec/git-core/git-http-backend/$1
  ScriptAliasMatch "^/git/(.*\.git/git-(upload|receive)-pack)$" \
    /usr/libexec/git-core/git-http-backend/$1


And then touching the file 'git-daemon-export-ok' in each git repo
that is intended to be public.

  https://git.seveas.net/apache-gitweb-cgit-smart-http.html

Regards,
Daniel
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