mio-ops/nix/sources.nix

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# This file has been generated by Niv.
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let
#
# The fetchers. fetch_<type> fetches specs of type <type>.
#
fetch_file = pkgs: spec:
if spec.builtin or true then
builtins_fetchurl { inherit (spec) url sha256; }
else
pkgs.fetchurl { inherit (spec) url sha256; };
fetch_tarball = pkgs: spec:
if spec.builtin or true then
builtins_fetchTarball { inherit (spec) url sha256; }
else
pkgs.fetchzip { inherit (spec) url sha256; };
fetch_git = spec:
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builtins.fetchGit {
url = spec.repo;
inherit (spec) rev ref;
};
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fetch_builtin-tarball = spec:
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builtins.trace ''
WARNING:
The niv type "builtin-tarball" will soon be deprecated. You should
instead use `builtin = true`.
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$ niv modify <package> -a type=tarball -a builtin=true
'' builtins_fetchTarball { inherit (spec) url sha256; };
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fetch_builtin-url = spec:
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builtins.trace ''
WARNING:
The niv type "builtin-url" will soon be deprecated. You should
instead use `builtin = true`.
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$ niv modify <package> -a type=file -a builtin=true
'' (builtins_fetchurl { inherit (spec) url sha256; });
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#
# Various helpers
#
# The set of packages used when specs are fetched using non-builtins.
mkPkgs = sources:
let
sourcesNixpkgs =
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import (builtins_fetchTarball { inherit (sources.nixpkgs) url sha256; })
{ };
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hasNixpkgsPath = builtins.any (x: x.prefix == "nixpkgs") builtins.nixPath;
hasThisAsNixpkgsPath = <nixpkgs> == ./.;
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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.
'';
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# The actual fetching function.
fetch = pkgs: name: spec:
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if !builtins.hasAttr "type" spec then
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abort "ERROR: niv spec ${name} does not have a 'type' attribute"
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else if spec.type == "file" then
fetch_file pkgs spec
else if spec.type == "tarball" then
fetch_tarball pkgs spec
else if spec.type == "git" then
fetch_git spec
else if spec.type == "builtin-tarball" then
fetch_builtin-tarball spec
else if spec.type == "builtin-url" then
fetch_builtin-url spec
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else
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abort
"ERROR: niv spec ${name} has unknown type ${builtins.toJSON spec.type}";
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# Ports of functions for older nix versions
# a Nix version of mapAttrs if the built-in doesn't exist
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mapAttrs = builtins.mapAttrs or (f: set:
with builtins;
listToAttrs (map (attr: {
name = attr;
value = f attr set.${attr};
}) (attrNames set)));
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# fetchTarball version that is compatible between all the versions of Nix
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builtins_fetchTarball = { url, sha256 }@attrs:
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let inherit (builtins) lessThan nixVersion fetchTarball;
in if lessThan nixVersion "1.12" then
fetchTarball { inherit url; }
else
fetchTarball attrs;
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# fetchurl version that is compatible between all the versions of Nix
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builtins_fetchurl = { url, sha256 }@attrs:
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let inherit (builtins) lessThan nixVersion fetchurl;
in if lessThan nixVersion "1.12" then
fetchurl { inherit url; }
else
fetchurl attrs;
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# Create the final "sources" from the config
mkSources = config:
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mapAttrs (name: spec:
if builtins.hasAttr "outPath" spec then
abort
"The values in sources.json should not have an 'outPath' attribute"
else
spec // { outPath = fetch config.pkgs name spec; }) config.sources;
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# The "config" used by the fetchers
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mkConfig = { sourcesFile ? ./sources.json
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, sources ? builtins.fromJSON (builtins.readFile sourcesFile)
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, pkgs ? mkPkgs sources }: rec {
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# The sources, i.e. the attribute set of spec name to spec
inherit sources;
# The "pkgs" (evaluated nixpkgs) to use for e.g. non-builtin fetchers
inherit pkgs;
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};
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in mkSources (mkConfig { }) // {
__functor = _: settings: mkSources (mkConfig settings);
}