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07644a1733
Co-authored-by: Ian Denhardt <ian@zenhack.net> Co-authored-by: Artturi <Artturin@artturin.com> Co-authored-by: Sandro <sandro.jaeckel@gmail.com>
68 lines
2.1 KiB
Nix
68 lines
2.1 KiB
Nix
{ lib, stdenv, fetchFromGitHub, capnproto }:
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stdenv.mkDerivation {
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pname = "ekam";
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version = "unstable-2021-09-18";
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src = fetchFromGitHub {
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owner = "capnproto";
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repo = "ekam";
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rev = "77c338f8bd8f4a2ce1e6199b2a52363f1fccf388";
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sha256 = "0q4bizlb1ykzdp4ca0kld6xm5ml9q866xrj3ijffcnyiyqr51qr8";
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};
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# The capnproto *source* is required to build ekam.
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# https://github.com/capnproto/ekam/issues/5
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#
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# Specifically, the git version of the source is required, as
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# capnproto release tarballs do not include ekam rule files.
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postUnpack = ''
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mkdir -p $sourceRoot/deps
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cp -r ${capnproto.src} $sourceRoot/deps/capnproto
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'';
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postPatch = ''
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# A single capnproto test file expects to be able to write to
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# /var/tmp. We change it to use /tmp because /var is not available
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# under nix-build.
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substituteInPlace deps/capnproto/c++/src/kj/filesystem-disk-test.c++ \
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--replace "/var/tmp" "/tmp"
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'';
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# NIX_ENFORCE_PURITY prevents ld from linking against anything outside
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# of the nix store -- but ekam builds capnp locally and links against it,
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# so that causes the build to fail. So, we turn this off.
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#
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# See: https://nixos.wiki/wiki/Development_environment_with_nix-shell#Troubleshooting
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preBuild = ''
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unset NIX_ENFORCE_PURITY
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'';
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makeFlags = [
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"PARALLEL=$(NIX_BUILD_CORES)"
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];
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installPhase = ''
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mkdir $out
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cp -r bin $out
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# Remove capnproto tools; there's a separate nix package for that.
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rm $out/bin/capnp*
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# Don't distribute ekam-bootstrap, which is not needed outside this build.
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rm $out/bin/ekam-bootstrap
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'';
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meta = with lib; {
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description = ''Build system ("make" in reverse)'';
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longDescription = ''
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Ekam ("make" spelled backwards) is a build system which automatically
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figures out what to build and how to build it purely based on the
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source code. No separate "makefile" is needed.
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'';
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homepage = "https://github.com/capnproto/ekam";
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license = licenses.asl20;
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platforms = platforms.linux;
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maintainers = [ maintainers.garrison ];
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};
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}
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