[Nix-dev] Explicitly selecting sources for "src" in stdenv.mkDerivation?

[Freddy Rietdijk]

> src = [ ./subproject-A/schema.sql ./subproject-A/lib ];

Each of the files you mentioned here will be stored in a separate store
path. You could write a simple function that takes a list of derivations
and copies the contents of those derivations in a new output.

On Thu, Feb 16, 2017 at 1:14 PM, Thomas Hunger <tehunger at gmail.com> wrote:

> Hi,
>
> I am consistently struggling with the following in nix: I have a
> repository and I want to specify derivations for some local sub-projects.
> The obvious solution is
>
>   src = ./subproject-A;
>
> But that pulls in everything in that directory, including build artifacts,
> or random intermediate data files.
>
> Another solution is
>
>   src = sourceFilesBySuffices ./subproject-A [".cabal" ".hs"];
>
> Which works reasonably well but introduces this weird dance where I suffix
> files so they can be matched by sourceFilesBySuffices. Mostly I want to do
> this:
>
>   src = [ ./subproject-A/schema.sql ./subproject-A/lib ];
>
> Or even get all the files checked into git:
>
>   src = gitFiles ./subproject-A; # does not work
>
> I was wondering whether any of you have this issue, and if you do: how do
> you solve it?
>
> ~
>
> (see also https://github.com/NixOS/nix/issues/885)
>
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