Re: [Nix-dev] unequal build hash
On 07/07/17 10:28, Harmen via nix-dev wrote: On Fri, Jul 07, 2017 at 07:59:46AM +0200, Vladimír Čunát wrote: On 07/06/2017 07:35 PM, Harmen via nix-dev wrote: Does that makes sense? Did I forget a 'name' somewhere? When you use things like src = ./.; the directory gets copied into nix store and the resulting path's name is based on the name of the directory. I see. That was rather unobvious and unexpected to me. Anyone knows a (creative) way around that? I would like to have it build code from ./., but where the name of the directory you happened to have checked the project out in doesn't matter (because then the binary cache works). Well, you could try to play with symlinks. A self-symlinks seems to be enough. git checkout ... somewhere cd somewhere ln -s . knownName then src = builtins.filterSource (path: type: path != "./knownName") ./knownName; # syntax my not be correct here, check by yourself :-). -- Layus. ___ nix-dev mailing list nix-dev@lists.science.uu.nl https://mailman.science.uu.nl/mailman/listinfo/nix-dev
Re: [Nix-dev] unequal build hash
On Fri, Jul 07, 2017 at 07:59:46AM +0200, Vladimír Čunát wrote: > On 07/06/2017 07:35 PM, Harmen via nix-dev wrote: > > Does that makes sense? Did I forget a 'name' somewhere? > > When you use things like > src = ./.; > the directory gets copied into nix store and the resulting path's name > is based on the name of the directory. I see. That was rather unobvious and unexpected to me. Anyone knows a (creative) way around that? I would like to have it build code from ./., but where the name of the directory you happened to have checked the project out in doesn't matter (because then the binary cache works). Thanks, Harmen > > --Vladimir ___ nix-dev mailing list nix-dev@lists.science.uu.nl https://mailman.science.uu.nl/mailman/listinfo/nix-dev
Re: [Nix-dev] unequal build hash
On 07/06/2017 07:35 PM, Harmen via nix-dev wrote: > Does that makes sense? Did I forget a 'name' somewhere? When you use things like src = ./.; the directory gets copied into nix store and the resulting path's name is based on the name of the directory. --Vladimir ___ nix-dev mailing list nix-dev@lists.science.uu.nl https://mailman.science.uu.nl/mailman/listinfo/nix-dev
Re: [Nix-dev] unequal build hash
On Thu, Jul 06, 2017 at 06:35:15PM +0200, Harmen via nix-dev wrote:
> Hello all,
> another day, another problem :/
>
> I'm trying to figure out why a build generates different build IDs in
> different
> contexts.
> I have a nix expression and some code. If I copy that from machine A
> to machine B they both give the same build hash. All's fine there.
> If on machine B I run nix-build in a docker container it won't give the same
> build hash.
> `nix-hash .` gives the same hash for B and B-docker. Same nix version, same
> nixpkgs version.
I'm getting a bit further, and it worked on different machines because I
happened to name the directory the same on both machines. Seems like the name
of the directory is used in the build process. As long as I checkout the repo
in a subdir with the same name everything is fine. If I rename the checkout dir
nix will rebuild. This my current default.nix:
with pkgs; buildGoPackage rec {
name = "mypackage";
src = builtins.filterSource
(name: type:
(lib.hasPrefix (toString ./vendor) name) ||
(lib.hasPrefix (toString ./rzutil) name) ||
(lib.hasPrefix (toString ./util) name) ||
(lib.hasPrefix (toString ./datatype) name) ||
(lib.hasPrefix (toString ./one) name)
) ./.;
goPackagePath = "example.com/mypackage";
meta = with stdenv.lib; {
description = "My First Package";
homepage = https://github.com/example-com/mypackage;
platforms = platforms.unix;
};
}
If I do the checkout in /tmp/fooo part of the .drv gives:
...
["/nix/store/9krlzvny65gdc8s7kpb6lkx8cd02c25b-default-builder.sh","/nix/store/zw7ax2gxc8qr5cx5a7byjpxdshx73297-fooo"]
...
Does that makes sense? Did I forget a 'name' somewhere?
Thanks!
>
> Any hints what to look for?
> Thanks!
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