Set up flake using the old overlay.nix

This commit is contained in:
Wolfgang Thaller 2023-12-17 19:04:35 +01:00
parent c57f0d98db
commit 551c7588ca
5 changed files with 153 additions and 82 deletions

View File

@ -1,16 +1,16 @@
let sources = import ./nix/sources.nix;
in { system ? builtins.currentSystem, nixpkgs ? sources.nixpkgs, ... }:
in { system ? builtins.currentSystem, nixpkgs ? sources.nixpkgs,
multiversal_src ? if builtins.pathExists ./multiversal/make-multiverse.rb then
./multiversal
else
sources.multiversal,
... }:
let
retroPlatforms = import nix/platforms.nix;
lib = ((import nixpkgs) { inherit system; }).lib;
multiversal_src = if builtins.pathExists ./multiversal/make-multiverse.rb then
./multiversal
else
sources.multiversal;
# A Nixpkgs overlay.
overlay = lib.composeManyExtensions [
((import nix/overlay.nix) { inherit multiversal_src; })
@ -30,6 +30,8 @@ let
crossSystem = plat;
config = { allowUnsupportedSystem = true; };
}) retroPlatforms;
targetPkgs = lib.mapAttrs (name: cross:
cross.buildPackages) crossPkgs;
shell = lib.mapAttrs (name: cross:
cross.mkShell {
@ -45,4 +47,5 @@ let
in shell.m68k // shell // {
inherit overlay;
inherit (overlaidPkgs) retro68;
targetPkg = targetPkgs;
}

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@ -17,6 +17,22 @@
"type": "indirect"
}
},
"multiversal": {
"flake": false,
"locked": {
"lastModified": 1682955462,
"narHash": "sha256-fOLYuSJOWh/iE7JelpeuT4NgZ/5bZivqV+o9LtiJGxA=",
"owner": "autc04",
"repo": "multiversal",
"rev": "1170bce4c98f1956ad73ca335479d510cd6e8620",
"type": "github"
},
"original": {
"owner": "autc04",
"repo": "multiversal",
"type": "github"
}
},
"nixpkgs": {
"locked": {
"lastModified": 1702312524,
@ -54,6 +70,7 @@
"root": {
"inputs": {
"flake-parts": "flake-parts",
"multiversal": "multiversal",
"nixpkgs": "nixpkgs"
}
}

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@ -3,31 +3,58 @@
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
multiversal.url = "github:autc04/multiversal";
multiversal.flake = false;
};
outputs = inputs@{ flake-parts, ... }:
flake-parts.lib.mkFlake { inherit inputs; } {
imports = [
# To import a flake module
# 1. Add foo to inputs
# 2. Add foo as a parameter to the outputs function
# 3. Add here: foo.flakeModule
outputs = inputs@{ flake-parts, nixpkgs, multiversal, ... }:
flake-parts.lib.mkFlake { inherit inputs; } ({ self, lib, retroPlatforms, ... }: {
_module.args.lib = import (nixpkgs + "/lib");
_module.args.retroPlatforms = import ./nix/platforms.nix;
];
systems = [ "x86_64-linux" "aarch64-linux" "aarch64-darwin" "x86_64-darwin" ];
perSystem = { config, self', inputs', pkgs, system, ... }: {
# Per-system attributes can be defined here. The self' and inputs'
# module parameters provide easy access to attributes of the same
# system.
perSystem = { config, self', inputs', pkgs, system, ... }:
{
_module.args.pkgs = import nixpkgs { inherit system; overlays = [ self.overlays.default ]; };
# Equivalent to inputs'.nixpkgs.legacyPackages.hello;
packages.default = pkgs.hello;
};
legacyPackages.crossPkgs = lib.mapAttrs
(name: plat:
import nixpkgs {
inherit system;
overlays = [ self.overlays.default ];
crossSystem = plat;
config = { allowUnsupportedSystem = true; };
})
retroPlatforms;
devShells = {
default = pkgs.mkShell {
inputsFrom = [ pkgs.retro68.monolithic ];
nativeBuildInputs = [ pkgs.nixpkgs-fmt ];
};
} // lib.mapAttrs
(name: cross:
cross.mkShell
{
nativeBuildInputs = with pkgs; [
retro68.hfsutils
retro68.tools
cmake
gnumake
];
buildInputs = [ cross.retro68.console ];
} // cross)
self'.legacyPackages.crossPkgs;
};
flake = {
# The usual flake attributes can be defined here, including system-
# agnostic ones like nixosModule and system-enumerating ones, although
# those are more easily expressed in perSystem.
overlays.default =
lib.composeManyExtensions [
((import nix/overlay.nix) { multiversal_src = multiversal; })
(import nix/universal.nix)
(import nix/samples.nix)
];
};
};
});
}

View File

@ -5,10 +5,10 @@
"homepage": null,
"owner": "autc04",
"repo": "multiversal",
"rev": "ce33b1bada9b0acb14021c21ac916927c757d525",
"sha256": "1fsyjad4kwsqgr2mlx9dfl7z8z42cf2sgw1arqmci47zhaj8is1f",
"rev": "1170bce4c98f1956ad73ca335479d510cd6e8620",
"sha256": "040vi7c2wggaazm2nrjvzrkn10sgmsbrcpmj2gi1ynjf4awxiqkw",
"type": "tarball",
"url": "https://github.com/autc04/multiversal/archive/ce33b1bada9b0acb14021c21ac916927c757d525.tar.gz",
"url": "https://github.com/autc04/multiversal/archive/1170bce4c98f1956ad73ca335479d510cd6e8620.tar.gz",
"url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
},
"niv": {
@ -17,10 +17,10 @@
"homepage": "https://github.com/nmattia/niv",
"owner": "nmattia",
"repo": "niv",
"rev": "5830a4dd348d77e39a0f3c4c762ff2663b602d4c",
"sha256": "1d3lsrqvci4qz2hwjrcnd8h5vfkg8aypq3sjd4g3izbc8frwz5sm",
"rev": "6bd7cd686220bf3db0e212481faf9578e8c8ff0f",
"sha256": "15claxlj6y15db67qc7kb4vzyn6sv7r13z4q502vq7a4z2488z94",
"type": "tarball",
"url": "https://github.com/nmattia/niv/archive/5830a4dd348d77e39a0f3c4c762ff2663b602d4c.tar.gz",
"url": "https://github.com/nmattia/niv/archive/6bd7cd686220bf3db0e212481faf9578e8c8ff0f.tar.gz",
"url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
},
"nixpkgs": {
@ -29,10 +29,10 @@
"homepage": "",
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "d1e59cfc49961e121583abe32e2f3db1550fbcff",
"sha256": "03ldf1dlxqf3g8qh9x5vp6vd9zvvr481fyjds111imll69y60wpm",
"rev": "2766f77c32e171a04d59b636a91083bae862274e",
"sha256": "1xk1f62n00z7q5i3pf4c8c4rlv5k4jwpgh0pqgzw1l40vhdkixk9",
"type": "tarball",
"url": "https://github.com/NixOS/nixpkgs/archive/d1e59cfc49961e121583abe32e2f3db1550fbcff.tar.gz",
"url": "https://github.com/NixOS/nixpkgs/archive/2766f77c32e171a04d59b636a91083bae862274e.tar.gz",
"url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
}
}

View File

@ -10,29 +10,50 @@ let
let
name' = sanitizeName name + "-src";
in
if spec.builtin or true then
builtins_fetchurl { inherit (spec) url sha256; name = name'; }
else
pkgs.fetchurl { inherit (spec) url sha256; name = name'; };
if spec.builtin or true then
builtins_fetchurl { inherit (spec) url sha256; name = name'; }
else
pkgs.fetchurl { inherit (spec) url sha256; name = name'; };
fetch_tarball = pkgs: name: spec:
let
name' = sanitizeName name + "-src";
in
if spec.builtin or true then
builtins_fetchTarball { name = name'; inherit (spec) url sha256; }
else
pkgs.fetchzip { name = name'; inherit (spec) url sha256; };
if spec.builtin or true then
builtins_fetchTarball { name = name'; inherit (spec) url sha256; }
else
pkgs.fetchzip { name = name'; inherit (spec) url sha256; };
fetch_git = name: spec:
let
ref =
if spec ? ref then spec.ref else
spec.ref or (
if spec ? branch then "refs/heads/${spec.branch}" else
if spec ? tag then "refs/tags/${spec.tag}" else
abort "In git source '${name}': Please specify `ref`, `tag` or `branch`!";
if spec ? tag then "refs/tags/${spec.tag}" else
abort "In git source '${name}': Please specify `ref`, `tag` or `branch`!"
);
submodules = spec.submodules or false;
submoduleArg =
let
nixSupportsSubmodules = builtins.compareVersions builtins.nixVersion "2.4" >= 0;
emptyArgWithWarning =
if submodules
then
builtins.trace
(
"The niv input \"${name}\" uses submodules "
+ "but your nix's (${builtins.nixVersion}) builtins.fetchGit "
+ "does not support them"
)
{ }
else { };
in
if nixSupportsSubmodules
then { inherit submodules; }
else emptyArgWithWarning;
in
builtins.fetchGit { url = spec.repo; inherit (spec) rev; inherit ref; };
builtins.fetchGit
({ url = spec.repo; inherit (spec) rev; inherit ref; } // submoduleArg);
fetch_local = spec: spec.path;
@ -66,16 +87,16 @@ let
hasNixpkgsPath = builtins.any (x: x.prefix == "nixpkgs") builtins.nixPath;
hasThisAsNixpkgsPath = <nixpkgs> == ./.;
in
if builtins.hasAttr "nixpkgs" sources
then sourcesNixpkgs
else if hasNixpkgsPath && ! hasThisAsNixpkgsPath then
import <nixpkgs> {}
else
abort
''
Please specify either <nixpkgs> (through -I or NIX_PATH=nixpkgs=...) or
add a package called "nixpkgs" to your sources.json.
'';
if builtins.hasAttr "nixpkgs" sources
then sourcesNixpkgs
else if hasNixpkgsPath && ! hasThisAsNixpkgsPath then
import <nixpkgs> { }
else
abort
''
Please specify either <nixpkgs> (through -I or NIX_PATH=nixpkgs=...) or
add a package called "nixpkgs" to your sources.json.
'';
# The actual fetching function.
fetch = pkgs: name: spec:
@ -95,13 +116,13 @@ let
# the path directly as opposed to the fetched source.
replace = name: drv:
let
saneName = stringAsChars (c: if isNull (builtins.match "[a-zA-Z0-9]" c) then "_" else c) name;
saneName = stringAsChars (c: if (builtins.match "[a-zA-Z0-9]" c) == null then "_" else c) name;
ersatz = builtins.getEnv "NIV_OVERRIDE_${saneName}";
in
if ersatz == "" then drv else
# this turns the string into an actual Nix path (for both absolute and
# relative paths)
if builtins.substring 0 1 ersatz == "/" then /. + ersatz else /. + builtins.getEnv "PWD" + "/${ersatz}";
if ersatz == "" then drv else
# this turns the string into an actual Nix path (for both absolute and
# relative paths)
if builtins.substring 0 1 ersatz == "/" then /. + ersatz else /. + builtins.getEnv "PWD" + "/${ersatz}";
# Ports of functions for older nix versions
@ -112,7 +133,7 @@ let
);
# https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/lists.nix#L295
range = first: last: if first > last then [] else builtins.genList (n: first + n) (last - first + 1);
range = first: last: if first > last then [ ] else builtins.genList (n: first + n) (last - first + 1);
# https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/strings.nix#L257
stringToCharacters = s: map (p: builtins.substring p 1 s) (range 0 (builtins.stringLength s - 1));
@ -123,43 +144,46 @@ let
concatStrings = builtins.concatStringsSep "";
# https://github.com/NixOS/nixpkgs/blob/8a9f58a375c401b96da862d969f66429def1d118/lib/attrsets.nix#L331
optionalAttrs = cond: as: if cond then as else {};
optionalAttrs = cond: as: if cond then as else { };
# fetchTarball version that is compatible between all the versions of Nix
builtins_fetchTarball = { url, name ? null, sha256 }@attrs:
let
inherit (builtins) lessThan nixVersion fetchTarball;
in
if lessThan nixVersion "1.12" then
fetchTarball ({ inherit url; } // (optionalAttrs (!isNull name) { inherit name; }))
else
fetchTarball attrs;
if lessThan nixVersion "1.12" then
fetchTarball ({ inherit url; } // (optionalAttrs (name != null) { inherit name; }))
else
fetchTarball attrs;
# fetchurl version that is compatible between all the versions of Nix
builtins_fetchurl = { url, name ? null, sha256 }@attrs:
let
inherit (builtins) lessThan nixVersion fetchurl;
in
if lessThan nixVersion "1.12" then
fetchurl ({ inherit url; } // (optionalAttrs (!isNull name) { inherit name; }))
else
fetchurl attrs;
if lessThan nixVersion "1.12" then
fetchurl ({ inherit url; } // (optionalAttrs (name != null) { inherit name; }))
else
fetchurl attrs;
# Create the final "sources" from the config
mkSources = config:
mapAttrs (
name: spec:
if builtins.hasAttr "outPath" spec
then abort
"The values in sources.json should not have an 'outPath' attribute"
else
spec // { outPath = replace name (fetch config.pkgs name spec); }
) config.sources;
mapAttrs
(
name: spec:
if builtins.hasAttr "outPath" spec
then
abort
"The values in sources.json should not have an 'outPath' attribute"
else
spec // { outPath = replace name (fetch config.pkgs name spec); }
)
config.sources;
# The "config" used by the fetchers
mkConfig =
{ sourcesFile ? if builtins.pathExists ./sources.json then ./sources.json else null
, sources ? if isNull sourcesFile then {} else builtins.fromJSON (builtins.readFile sourcesFile)
, sources ? if sourcesFile == null then { } else builtins.fromJSON (builtins.readFile sourcesFile)
, system ? builtins.currentSystem
, pkgs ? mkPkgs sources system
}: rec {
@ -171,4 +195,4 @@ let
};
in
mkSources (mkConfig {}) // { __functor = _: settings: mkSources (mkConfig settings); }
mkSources (mkConfig { }) // { __functor = _: settings: mkSources (mkConfig settings); }