using Pkg, LibGit2, CredentialsHandler

function update_registry(name)
    tmpdir = mktempdir()
    tmpfile = joinpath(tmpdir, "tmp.tar.gz")
    CredentialsHandler.download("$(ENV["JULIA_PKG_SERVER"])/$(name).tar.gz", tmpfile)
    @info "Downloaded Registry tmp at ", tmpfile
    dest = joinpath(Pkg.depots1(), "registries")
    @static if Sys.iswindows()
        run(`$(joinpath(Sys.BINDIR, "7z.exe")) x -y $(tmpfile) -o$(tmpdir) -r`)
         run(`$(joinpath(Sys.BINDIR, "7z.exe")) x -y $(tmpfile[1:end-3]) -o$(tmpdir) -r`)
    else
        run(`tar -xzf $tmpfile -C $(tmpdir)`)
    end

    @info "Extraction successfull ?", isdir(joinpath(tmpdir, name))

    @info "Removing dest registry if exists ", joinpath(dest,name)
    isdir(joinpath(dest,name)) && rm(joinpath(dest,name), force = true, recursive = true)

    @info "Copying registry to ", joinpath(dest,name)
    cp(joinpath(tmpdir, name), joinpath(dest,name))

    @info "Removing temp registry at ", joinpath(tmpdir,name)
    rm(joinpath(tmpdir,name), force = true, recursive = true)

    @info "Setting remote..."
    try
        repo = LibGit2.init(normpath(joinpath(DEPOT_PATH[1],"registries",name)))
        LibGit2.set_remote_url(repo, "origin", ENV["JULIA_PKG_SERVER"]*"/registry/$name")
    catch ex
        @warn "Setting remote failed", ex
    end
end