grimm-nixos-laptop/nix/sources.nix

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# This file has been generated by Niv.
let
#
# The fetchers. fetch_<type> fetches specs of type <type>.
#
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fetch_file =
pkgs: name: spec:
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let
name' = sanitizeName name + "-src";
in
if spec.builtin or true then
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builtins_fetchurl {
inherit (spec) url sha256;
name = name';
}
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else
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pkgs.fetchurl {
inherit (spec) url sha256;
name = name';
};
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fetch_tarball =
pkgs: name: spec:
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let
name' = sanitizeName name + "-src";
in
if spec.builtin or true then
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builtins_fetchTarball {
name = name';
inherit (spec) url sha256;
}
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else
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pkgs.fetchzip {
name = name';
inherit (spec) url sha256;
};
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fetch_git =
name: spec:
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let
ref =
spec.ref or (
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if spec ? branch then
"refs/heads/${spec.branch}"
else if spec ? tag then
"refs/tags/${spec.tag}"
else
abort "In git source '${name}': Please specify `ref`, `tag` or `branch`!"
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);
submodules = spec.submodules or false;
submoduleArg =
let
nixSupportsSubmodules = builtins.compareVersions builtins.nixVersion "2.4" >= 0;
emptyArgWithWarning =
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if submodules then
builtins.trace (
"The niv input \"${name}\" uses submodules "
+ "but your nix's (${builtins.nixVersion}) builtins.fetchGit "
+ "does not support them"
) { }
else
{ };
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in
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if nixSupportsSubmodules then { inherit submodules; } else emptyArgWithWarning;
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in
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builtins.fetchGit (
{
url = spec.repo;
inherit (spec) rev;
inherit ref;
}
// submoduleArg
);
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fetch_local = spec: spec.path;
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fetch_builtin-tarball =
name:
throw ''
[${name}] The niv type "builtin-tarball" is deprecated. You should instead use `builtin = true`.
$ niv modify ${name} -a type=tarball -a builtin=true'';
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fetch_builtin-url =
name:
throw ''
[${name}] The niv type "builtin-url" will soon be deprecated. You should instead use `builtin = true`.
$ niv modify ${name} -a type=file -a builtin=true'';
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#
# Various helpers
#
# https://github.com/NixOS/nixpkgs/pull/83241/files#diff-c6f540a4f3bfa4b0e8b6bafd4cd54e8bR695
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sanitizeName =
name:
(concatMapStrings (s: if builtins.isList s then "-" else s) (
builtins.split "[^[:alnum:]+._?=-]+" ((x: builtins.elemAt (builtins.match "\\.*(.*)" x) 0) name)
));
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# The set of packages used when specs are fetched using non-builtins.
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mkPkgs =
sources: system:
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let
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sourcesNixpkgs = import (builtins_fetchTarball { inherit (sources.nixpkgs) url sha256; }) {
inherit system;
};
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hasNixpkgsPath = builtins.any (x: x.prefix == "nixpkgs") builtins.nixPath;
hasThisAsNixpkgsPath = <nixpkgs> == ./.;
in
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if builtins.hasAttr "nixpkgs" sources then
sourcesNixpkgs
else if hasNixpkgsPath && !hasThisAsNixpkgsPath then
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import <nixpkgs> { }
else
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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.
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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 name spec
else if spec.type == "tarball" then
fetch_tarball pkgs name spec
else if spec.type == "git" then
fetch_git name spec
else if spec.type == "local" then
fetch_local spec
else if spec.type == "builtin-tarball" then
fetch_builtin-tarball name
else if spec.type == "builtin-url" then
fetch_builtin-url name
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else
abort "ERROR: niv spec ${name} has unknown type ${builtins.toJSON spec.type}";
# If the environment variable NIV_OVERRIDE_${name} is set, then use
# the path directly as opposed to the fetched source.
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replace =
name: drv:
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let
saneName = stringAsChars (c: if (builtins.match "[a-zA-Z0-9]" c) == null then "_" else c) name;
ersatz = builtins.getEnv "NIV_OVERRIDE_${saneName}";
in
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if ersatz == "" then
drv
else
# this turns the string into an actual Nix path (for both absolute and
# relative paths)
if builtins.substring 0 1 ersatz == "/" then
/. + ersatz
else
/. + builtins.getEnv "PWD" + "/${ersatz}";
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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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# https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/lists.nix#L295
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range =
first: last: if first > last then [ ] else builtins.genList (n: first + n) (last - first + 1);
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# 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));
# https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/strings.nix#L269
stringAsChars = f: s: concatStrings (map f (stringToCharacters s));
concatMapStrings = f: list: concatStrings (map f list);
concatStrings = builtins.concatStringsSep "";
# https://github.com/NixOS/nixpkgs/blob/8a9f58a375c401b96da862d969f66429def1d118/lib/attrsets.nix#L331
optionalAttrs = cond: as: if cond then as else { };
# fetchTarball version that is compatible between all the versions of Nix
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builtins_fetchTarball =
{
url,
name ? null,
sha256,
}@attrs:
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let
inherit (builtins) lessThan nixVersion fetchTarball;
in
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
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builtins_fetchurl =
{
url,
name ? null,
sha256,
}@attrs:
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let
inherit (builtins) lessThan nixVersion fetchurl;
in
if lessThan nixVersion "1.12" then
fetchurl ({ inherit url; } // (optionalAttrs (name != null) { inherit name; }))
else
fetchurl attrs;
# Create the final "sources" from the config
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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;
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# The "config" used by the fetchers
mkConfig =
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{
sourcesFile ? if builtins.pathExists ./sources.json then ./sources.json else null,
sources ? if sourcesFile == null then { } else builtins.fromJSON (builtins.readFile sourcesFile),
system ? builtins.currentSystem,
pkgs ? mkPkgs sources system,
}:
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;
};
in
mkSources (mkConfig { }) // { __functor = _: settings: mkSources (mkConfig settings); }