Add a matrix of stdenvs to the flake
For a (currently hardcoded and limited) list of stdenvs,
make `.#$nix-${stdenvName}` correspond to a Nix built with the
corresponding stdenv.
For example, `.#nix-${clang11Stdenv}` is Nix built with clang11.
Likewise, `devShells.x86_64-linux.clang11StdenvPackages` is a development
shell for Nix with clang11, that can be used with
```shell
nix develop .#clang11StdenvPackages
```
Fix #4129
/cc @pamplemousse
This commit is contained in:
regnat
parent
5fcf7f04a9
commit
e588f4c655
70
flake.nix
70
flake.nix
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@ -22,15 +22,36 @@
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crossSystems = [ "armv6l-linux" "armv7l-linux" ];
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stdenvs = [ "gccStdenv" "clangStdenv" "clang11Stdenv" "stdenv" ];
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forAllSystems = f: nixpkgs.lib.genAttrs systems (system: f system);
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forAllSystemsAndStdenvs = f: forAllSystems (system:
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nixpkgs.lib.listToAttrs
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(map
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(n:
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nixpkgs.lib.nameValuePair "${n}Packages" (
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f system n
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)) stdenvs
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)
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);
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forAllStdenvs = stdenvs: f: nixpkgs.lib.genAttrs stdenvs (stdenv: f stdenv);
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# Memoize nixpkgs for different platforms for efficiency.
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nixpkgsFor = forAllSystems (system:
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nixpkgsFor =
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let stdenvsPackages = forAllSystemsAndStdenvs
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(system: stdenv:
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import nixpkgs {
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inherit system;
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overlays = [ self.overlay ];
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overlays = [
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(overlayFor (p: p.${stdenv}))
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];
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}
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);
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in
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# Add the `stdenvPackages` at toplevel, both because these are the ones
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# we want most of the time and for backwards compatibility
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forAllSystems (system: stdenvsPackages.${system} // stdenvsPackages.${system}.stdenvPackages);
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commonDeps = pkgs: with pkgs; rec {
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# Use "busybox-sandbox-shell" if present,
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@ -255,18 +276,15 @@
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$(cat ${installerClosureInfo}/store-paths)
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'';
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in {
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# A Nixpkgs overlay that overrides the 'nix' and
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# 'nix.perl-bindings' packages.
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overlay = final: prev: {
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overlayFor = getStdenv: final: prev:
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let currentStdenv = getStdenv final; in
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{
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nixStable = prev.nix;
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# Forward from the previous stage as we don’t want it to pick the lowdown override
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nixUnstable = prev.nixUnstable;
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nix = with final; with commonDeps pkgs; stdenv.mkDerivation {
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nix = with final; with commonDeps pkgs; currentStdenv.mkDerivation {
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name = "nix-${version}";
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inherit version;
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@ -288,9 +306,9 @@
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mkdir -p $out/lib
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cp -pd ${boost}/lib/{libboost_context*,libboost_thread*,libboost_system*} $out/lib
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rm -f $out/lib/*.a
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${lib.optionalString stdenv.isLinux ''
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${lib.optionalString currentStdenv.isLinux ''
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chmod u+w $out/lib/*.so.*
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patchelf --set-rpath $out/lib:${stdenv.cc.cc.lib}/lib $out/lib/libboost_thread.so.*
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patchelf --set-rpath $out/lib:${currentStdenv.cc.cc.lib}/lib $out/lib/libboost_thread.so.*
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''}
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'';
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@ -317,7 +335,7 @@
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strictDeps = true;
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passthru.perl-bindings = with final; stdenv.mkDerivation {
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passthru.perl-bindings = with final; currentStdenv.mkDerivation {
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name = "nix-perl-${version}";
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src = self;
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@ -336,8 +354,8 @@
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pkgs.perl
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boost
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]
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++ lib.optional (stdenv.isLinux || stdenv.isDarwin) libsodium
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++ lib.optional stdenv.isDarwin darwin.apple_sdk.frameworks.Security;
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++ lib.optional (currentStdenv.isLinux || currentStdenv.isDarwin) libsodium
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++ lib.optional currentStdenv.isDarwin darwin.apple_sdk.frameworks.Security;
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configureFlags = ''
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--with-dbi=${perlPackages.DBI}/${pkgs.perl.libPrefix}
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@ -351,7 +369,7 @@
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};
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lowdown-nix = with final; stdenv.mkDerivation rec {
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lowdown-nix = with final; currentStdenv.mkDerivation rec {
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name = "lowdown-0.9.0";
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src = lowdown-src;
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@ -361,15 +379,20 @@
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nativeBuildInputs = [ buildPackages.which ];
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configurePhase = ''
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${if (stdenv.isDarwin && stdenv.isAarch64) then "echo \"HAVE_SANDBOX_INIT=false\" > configure.local" else ""}
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${if (currentStdenv.isDarwin && currentStdenv.isAarch64) then "echo \"HAVE_SANDBOX_INIT=false\" > configure.local" else ""}
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./configure \
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PREFIX=${placeholder "dev"} \
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BINDIR=${placeholder "bin"}/bin
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'';
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};
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};
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in {
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# A Nixpkgs overlay that overrides the 'nix' and
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# 'nix.perl-bindings' packages.
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overlay = overlayFor (p: p.stdenv);
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hydraJobs = {
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# Binary package for various platforms.
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@ -610,15 +633,22 @@
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doInstallCheck = true;
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installCheckFlags = "sysconfdir=$(out)/etc";
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};
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}) crossSystems)));
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}) crossSystems)) // (builtins.listToAttrs (map (stdenvName:
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nixpkgsFor.${system}.lib.nameValuePair
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"nix-${stdenvName}"
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nixpkgsFor.${system}."${stdenvName}Packages".nix
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) stdenvs))
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);
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defaultPackage = forAllSystems (system: self.packages.${system}.nix);
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devShell = forAllSystems (system:
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devShell = forAllSystems (system: self.devShells.${system}.stdenvPackages);
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devShells = forAllSystemsAndStdenvs (system: stdenv:
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with nixpkgsFor.${system};
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with commonDeps pkgs;
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stdenv.mkDerivation {
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nixpkgsFor.${system}.${stdenv}.mkDerivation {
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name = "nix";
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outputs = [ "out" "dev" "doc" ];
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