[Caml-list] ocamlfind path to META file ?

[Caml-list] ocamlfind path to META file ?

[Daniel Bünzli]

Hello,  

Is there a way to get the path to the META file of a package ? 

Or will $(ocamlfind query $PKG)/META always do ?

Best, 

Daniel 

Re: [Caml-list] ocamlfind path to META file ?

[Gabriel Scherer]

`ocamlfind install` requires that either the META file is installed in
the package directory (so your command will work), or the -metadir
option is passed and the META file is installed in some META-only
directory that is global to the ocamlfind configuration. You can query
this directory with $(ocamlfind printconf metadir) (which returns an
empty line if no such directory is used).

This means that the following logic should always find your package file:
  - if $(ocamlfind printconf metadir) is not empty, look at
    $(ocamlfind printconf metadir)/META.$PKG
  - otherwise look at
    $(ocamlfind query $PKG)/META

On Thu, Nov 12, 2015 at 11:20 AM, Daniel Bünzli
<daniel.buenzli@erratique.ch> wrote:
> Hello,
>
> Is there a way to get the path to the META file of a package ?
>
> Or will $(ocamlfind query $PKG)/META always do ?
>
> Best,
>
> Daniel
>
>
>
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Re: [Caml-list] ocamlfind path to META file ?

[Daniel Bünzli]

Le jeudi, 12 novembre 2015 à 10:27, Gabriel Scherer a écrit :
> `ocamlfind install` requires that either the META file is installed in
> the package directory (so your command will work), or the -metadir
> option is passed and the META file is installed in some META-only
> directory that is global to the ocamlfind configuration. You can query
> this directory with $(ocamlfind printconf metadir) (which returns an
> empty line if no such directory is used).
>  
> This means that the following logic should always find your package file:
> - if $(ocamlfind printconf metadir) is not empty, look at
> $(ocamlfind printconf metadir)/META.$PKG
> - otherwise look at
> $(ocamlfind query $PKG)/META

Thanks. Though it would be nice to have a query flag that implements the logic, rather than each of us reimplementing it.  

Best,  

Daniel