Re: [arch-general] Howto look outside chroot for local git tree?

On 03/01/2012 09:19 AM, C Anthony Risinger wrote:

On Thu, Mar 1, 2012 at 2:07 AM, Damien Churchill wrote:

...

You could mount --bind the location of your local git repositories to a point inside your chroot, that's probably the quickest and simplest way of doing it, although it offers no protection of your git repositories from being wiped out from within the chroot.

you can readonly --bind mount at the VFS level:

mount --bind /a /b mount -oremount,bind,ro /b

... i have an AUR package that does exactly this:

(the for loop after "# Allow env passthru ...") http://aur.archlinux.org/packages/py/pyjamas-engine-pythonwebkit/PKGBUILD

... this block allows variables to be set from the ENV, but more related is the excerpt later on in build():

if [[ ! -e ${g}/objects ]]; then msg "[git] Creating NEW repository ... " git --git-dir="${g}" --work-tree="${w}" init elif [[ ! -w ${g}/objects ]]; then warning "[git] Repository read-only, setting up proxy ... " git --git-dir="${_gitrepo_proxy}" --work-tree="${w}" init echo "${g}/objects" > "${_gitrepo_proxy}/objects/info/alternates" cp -r "${g}/refs" "${_gitrepo_proxy}" g="${_gitrepo_proxy}" fi

... this block check for an objects directory: if missing clone new, if readonly create proxy. the proxy works by creating a new git repo, and assigning the original as an alternate object store ... this allows the build to not only reuse the existing repo but *also* download/use/change within it's own repo.

i use this for webkit because it's a 1GiB+ repository.

C Anthony, Damien, Mantas, Thank you! I will give these a try. Yes, thankfully the parts I'm dealing with are not 1G, but 208M is really bad over a git connection with less than .1M downsteam. (you get old waiting for the clone to finish...) -- David C. Rankin, J.D.,P.E.