> I do wonder why Thomas thinks that OPAMROOT is a bad solution though. It > seems quite clean to me -- you can have an OPAM installation pointing to > (e.g.) /usr/local/opam and either add that your global PATH or symlink > binaries > into /usr/local/bin.
you can indeed have things under /usr/local/opam, but what you might want is to have libs in /usr/local/lib, binaries in /usr/local/bin to integrate with your system better etc... homebrew solves this by taking ownership of /usrl/local, but we clearly don't want this for opam (I think) :-) I think having a special "global" switch could makes sense and could be implemented without too much hassle. Need to special case https://github.com/ocaml/opam/blob/master/src/core/opamPath.ml to use global paths. Requiring the user to install ocaml and ocamlfind only could help (so we need to implement a the detection of an "external" ocamlfind) as we don't need to support other external ocaml libs (which can become a pain when you want to upgrade ...). So I think that adding that kind of limited support for global packages could makes sense and is not too hard to do. Thomas > > This could be scripted up with a fairly trivial shell script (caveat: that I > haven't actually written). > > -anil > >> On 10 Dec 2014, at 23:12, Thomas Gazagnaire <[email protected]> wrote: >> >> A (bad) solution is to set change OPAMROOT to an appropriate location. >> >> Thanks for the write-up, this is very helpful to understand the use-cases. >> I've created https://github.com/ocaml/opam/issues/1895 to track that. >> >> Best, >> Thomas >> >> >>> On 10 Dec 2014, at 13:16, Simon Cruanes <[email protected]> wrote: >>> >>> Hello, >>> >>> Is there a blessed way to install packages system-wide using Opam? I >>> suspect there isn't, so I attached a document [1] that describes my >>> use-cases and what I'm thinking of (of course I know you opam >>> developers are busy). >>> >>> Thanks! >>> >>> Best, >>> >>> -- >>> Simon >>> >>> [1] http://cedeela.fr/~simon/files/opam_system.html >>> or joined file >>> >>> http://weusepgp.info/ >>> key 49AA62B6, fingerprint 949F EB87 8F06 59C6 D7D3 7D8D 4AC0 1D08 49AA 62B6 >>> <opam_system.md>_______________________________________________ >>> opam-devel mailing list >>> [email protected] >>> http://lists.ocaml.org/listinfo/opam-devel >> >> _______________________________________________ >> opam-devel mailing list >> [email protected] >> http://lists.ocaml.org/listinfo/opam-devel >> > _______________________________________________ opam-devel mailing list [email protected] http://lists.ocaml.org/listinfo/opam-devel
