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Forgot nix directory :/

master
parent
commit
6ac441f96a
3 changed files with 141 additions and 0 deletions
  1. +10
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      nix/lib.nix
  2. +38
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      nix/sources.json
  3. +93
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      nix/sources.nix

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nix/lib.nix View File

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let
sources = import ./sources.nix;
haskell-nix = import sources."haskell.nix";
nixpkgs = import sources.nixpkgs;
pkgs = (nixpkgs haskell-nix).pkgs;
in {
inherit nixpkgs haskell-nix pkgs;
niv = (import sources.niv {}).niv;
nix-tools = pkgs.haskell-nix.nix-tools;
}

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nix/sources.json View File

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{
"haskell.nix": {
"branch": "master",
"description": "Alternative Haskell Infrastructure for Nixpkgs",
"homepage": "https://input-output-hk.github.io/haskell.nix",
"owner": "input-output-hk",
"repo": "haskell.nix",
"rev": "ebb62a66d53484d7dbcf63eeab1c1afa120cfd93",
"sha256": "1a8k6v5z5dcnql1wgai1ivv155za7nalqzbqkawjnqj7ygj4piqk",
"type": "tarball",
"url": "https://github.com/input-output-hk/haskell.nix/archive/ebb62a66d53484d7dbcf63eeab1c1afa120cfd93.tar.gz",
"url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
},
"niv": {
"branch": "master",
"description": "Easy dependency management for Nix projects",
"homepage": "https://github.com/nmattia/niv",
"owner": "nmattia",
"repo": "niv",
"rev": "6f03879b8a91fb0c33c7186da347b914deee3efc",
"sha256": "04pl8b4gnbfakapjskm4030qlklwzjk0x45jn9gcnjpdl7s8ri33",
"type": "tarball",
"url": "https://github.com/nmattia/niv/archive/6f03879b8a91fb0c33c7186da347b914deee3efc.tar.gz",
"url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
},
"nixpkgs": {
"branch": "nixos-19.03",
"description": "A read-only mirror of NixOS/nixpkgs tracking the released channels. Send issues and PRs to",
"homepage": "https://github.com/input-output-hk/nixpkgs",
"owner": "NixOS",
"repo": "nixpkgs-channels",
"rev": "31aa5316ca232a53667790a99e8b1e76252e065c",
"sha256": "0g0r473rdrh5vsdvr45nmfs6ibp0pqyzbw9f0iv6r0jkg6jjiykr",
"type": "tarball",
"url": "https://github.com/input-output-hk/nixpkgs/archive/31aa5316ca232a53667790a99e8b1e76252e065c.tar.gz",
"url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
}
}

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nix/sources.nix View File

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# This file has been generated by Niv.
# A record, from name to path, of the third-party packages
with rec
{
pkgs =
if hasNixpkgsPath
then
if hasThisAsNixpkgsPath
then import (builtins_fetchTarball { inherit (sources_nixpkgs) url sha256; }) {}
else import <nixpkgs> {}
else
import (builtins_fetchTarball { inherit (sources_nixpkgs) url sha256; }) {};
sources_nixpkgs =
if builtins.hasAttr "nixpkgs" sources
then sources.nixpkgs
else abort
''
Please specify either <nixpkgs> (through -I or NIX_PATH=nixpkgs=...) or
add a package called "nixpkgs" to your sources.json.
'';
# fetchTarball version that is compatible between all the versions of Nix
builtins_fetchTarball =
{ url, sha256 }@attrs:
let
inherit (builtins) lessThan nixVersion fetchTarball;
in
if lessThan nixVersion "1.12" then
fetchTarball { inherit url; }
else
fetchTarball attrs;
# fetchurl version that is compatible between all the versions of Nix
builtins_fetchurl =
{ url, sha256 }@attrs:
let
inherit (builtins) lessThan nixVersion fetchurl;
in
if lessThan nixVersion "1.12" then
fetchurl { inherit url; }
else
fetchurl attrs;
# A wrapper around pkgs.fetchzip that has inspectable arguments,
# annoyingly this means we have to specify them
fetchzip = { url, sha256 }@attrs: pkgs.fetchzip attrs;
# A wrapper around pkgs.fetchurl that has inspectable arguments,
# annoyingly this means we have to specify them
fetchurl = { url, sha256 }@attrs: pkgs.fetchurl attrs;
hasNixpkgsPath = (builtins.tryEval <nixpkgs>).success;
hasThisAsNixpkgsPath =
(builtins.tryEval <nixpkgs>).success && <nixpkgs> == ./.;
sources = builtins.fromJSON (builtins.readFile ./sources.json);
mapAttrs = builtins.mapAttrs or
(f: set: with builtins;
listToAttrs (map (attr: { name = attr; value = f attr set.${attr}; }) (attrNames set)));
# borrowed from nixpkgs
functionArgs = f: f.__functionArgs or (builtins.functionArgs f);
callFunctionWith = autoArgs: f: args:
let auto = builtins.intersectAttrs (functionArgs f) autoArgs;
in f (auto // args);
getFetcher = spec:
let fetcherName =
if builtins.hasAttr "type" spec
then builtins.getAttr "type" spec
else "builtin-tarball";
in builtins.getAttr fetcherName {
"tarball" = fetchzip;
"builtin-tarball" = builtins_fetchTarball;
"file" = fetchurl;
"builtin-url" = builtins_fetchurl;
};
};
# NOTE: spec must _not_ have an "outPath" attribute
mapAttrs (_: spec:
if builtins.hasAttr "outPath" spec
then abort
"The values in sources.json should not have an 'outPath' attribute"
else
if builtins.hasAttr "url" spec && builtins.hasAttr "sha256" spec
then
spec //
{ outPath = callFunctionWith spec (getFetcher spec) { }; }
else spec
) sources

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