if (FALSE) {
dir.create(tmp <- tempfile())
setwd(tmp)
system("git clone --bare https://github.com/cran/crayon")
system("git clone --bare https://github.com/cran/glue")
app <- git_app(tmp)
git <- new_app_process(app)
system(paste("git ls-remote", git$url("/crayon")))
}
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