mio-ops/nix/sources.nix

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Nix
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2019-11-26 12:37:23 +00:00
# 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.
'';
sources_gitignore =
if builtins.hasAttr "gitignore" sources
then sources.gitignore
else abort
''
Please add "gitignore" to your sources.json:
niv add hercules-ci/gitignore
'';
inherit (import (builtins_fetchTarball { inherit (sources_gitignore) url sha256; }) {
inherit (pkgs) lib;
}) gitignoreSource;
# fetchTarball version that is compatible between all the versions of Nix
builtins_fetchTarball =
{ url, sha256 ? null }@attrs:
let
inherit (builtins) lessThan nixVersion fetchTarball;
in
if sha256 == null || 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 ? null }@attrs:
let
inherit (builtins) lessThan nixVersion fetchurl;
in
if sha256 == null || 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 ? null }@attrs: if sha256 == null
then builtins.fetchTarball { inherit url; }
else 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.${attr}; }) (attrNames set)));
# borrowed from nixpkgs
functionArgs = f: f.__functionArgs or (builtins.functionArgs f);
callFunctionWith = autoArgs: f: args:
let auto = builtins.intersectAttrs (functionArgs f) autoArgs;
in f (auto // args);
getFetcher = spec:
let fetcherName =
if builtins.hasAttr "type" spec
then builtins.getAttr "type" spec
else "builtin-tarball";
in builtins.getAttr fetcherName {
"tarball" = fetchzip;
"builtin-tarball" = builtins_fetchTarball;
"file" = fetchurl;
"builtin-url" = builtins_fetchurl;
};
};
# NOTE: spec must _not_ have an "outPath" attribute
mapAttrs (name: spec:
if builtins.hasAttr "outPath" spec
then abort
"The values in sources.json should not have an 'outPath' attribute"
else
let
host = if (name == "nixpkgs") then "custom_nixpkgs" else name;
tryFromPath = builtins.tryEval (builtins.findFile builtins.nixPath host);
defaultSpec = (if builtins.hasAttr "url" spec && builtins.hasAttr "sha256" spec
then spec //
{ outPath = callFunctionWith spec (getFetcher spec) { }; }
else spec) // (if tryFromPath.success
then let path = tryFromPath.value;
in {
outPath = builtins.trace "using search host <${host}>" (
if pkgs.lib.hasPrefix "/nix/store" (builtins.toString path)
then path else gitignoreSource path);
}
else {});
in if builtins.hasAttr "rev" spec && builtins.hasAttr "url" spec then
defaultSpec //
{ revOverride = rev: if (rev == null) then defaultSpec else
let
spec' = removeAttrs (spec // {
rev = rev;
url = builtins.replaceStrings [defaultSpec.rev] [rev] defaultSpec.url;
}) [ "sha256" ];
in
spec' //
{ outPath = callFunctionWith spec' (getFetcher spec') { }; };
}
else defaultSpec
) sources