mirror of
https://github.com/nmattia/niv.git
synced 2024-09-19 11:27:40 +03:00
Refactor fetchers
This commit is contained in:
parent
bd1aeb0a9c
commit
d9e35d67d8
123
nix/sources.nix
123
nix/sources.nix
@ -1,6 +1,57 @@
|
|||||||
# This file has been generated by Niv.
|
# This file has been generated by Niv.
|
||||||
|
|
||||||
let
|
let
|
||||||
|
|
||||||
|
#
|
||||||
|
# The fetchers. fetch_<type> fetches specs of type <type>.
|
||||||
|
#
|
||||||
|
|
||||||
|
fetch_file = spec:
|
||||||
|
if spec.builtin or true then
|
||||||
|
builtins_fetchurl { inherit (spec) url sha256; }
|
||||||
|
else
|
||||||
|
pkgs.fetchurl { inherit (spec) url sha256; };
|
||||||
|
|
||||||
|
fetch_tarball = spec:
|
||||||
|
if spec.builtin or true then
|
||||||
|
builtins_fetchTarball { inherit (spec) url sha256; }
|
||||||
|
else
|
||||||
|
pkgs.fetchzip { inherit (spec) url sha256; };
|
||||||
|
|
||||||
|
fetch_builtin-tarball = spec:
|
||||||
|
builtins.trace
|
||||||
|
''
|
||||||
|
WARNING:
|
||||||
|
The niv type "builtin-tarball" will soon be deprecated. You should
|
||||||
|
instead use `builtin = true`.
|
||||||
|
|
||||||
|
$ niv modify <package> -a type=tarball -a builtins=true
|
||||||
|
'' # TODO: attribute as JSON
|
||||||
|
builtins_fetchTarball { inherit (spec) url sha256; };
|
||||||
|
|
||||||
|
fetch_builtin-url = spec:
|
||||||
|
builtins.trace
|
||||||
|
''
|
||||||
|
WARNING:
|
||||||
|
The niv type "builtin-url" will soon be deprecated. You should
|
||||||
|
instead use `builtin = true`.
|
||||||
|
|
||||||
|
$ niv modify <package> -a type=file -a builtins=true
|
||||||
|
'' # TODO: attribute as JSON
|
||||||
|
|
||||||
|
(builtins_fetchurl { inherit (spec) url sha256; });
|
||||||
|
|
||||||
|
#
|
||||||
|
# The sources to fetch.
|
||||||
|
#
|
||||||
|
|
||||||
|
sources = builtins.fromJSON (builtins.readFile ./sources.json);
|
||||||
|
|
||||||
|
#
|
||||||
|
# Various helpers
|
||||||
|
#
|
||||||
|
|
||||||
|
# The set of packages used when specs are fetched using non-builtins.
|
||||||
pkgs =
|
pkgs =
|
||||||
if hasNixpkgsPath
|
if hasNixpkgsPath
|
||||||
then
|
then
|
||||||
@ -19,6 +70,30 @@ let
|
|||||||
add a package called "nixpkgs" to your sources.json.
|
add a package called "nixpkgs" to your sources.json.
|
||||||
'';
|
'';
|
||||||
|
|
||||||
|
hasNixpkgsPath = (builtins.tryEval <nixpkgs>).success;
|
||||||
|
hasThisAsNixpkgsPath =
|
||||||
|
(builtins.tryEval <nixpkgs>).success && <nixpkgs> == ./.;
|
||||||
|
|
||||||
|
# The actual fetching function.
|
||||||
|
fetch = name: spec:
|
||||||
|
|
||||||
|
if ! builtins.hasAttr "type" spec then
|
||||||
|
abort "ERROR: niv spec ${name} does not have a 'type' attribute"
|
||||||
|
else if spec.type == "file" then fetch_file spec
|
||||||
|
else if spec.type == "tarball" then fetch_tarball spec
|
||||||
|
else if spec.type == "builtin-tarball" then fetch_builtin-tarball spec
|
||||||
|
else if spec.type == "builtin-url" then fetch_builtin-url spec
|
||||||
|
else
|
||||||
|
abort "ERROR: niv spec ${name} has unknown type ${builtins.fromJSON spec.type}";
|
||||||
|
|
||||||
|
# Ports of functions for previous nix versions
|
||||||
|
|
||||||
|
# a Nix version of mapAttrs if the built-in doesn't exist
|
||||||
|
mapAttrs = builtins.mapAttrs or (
|
||||||
|
f: set: with builtins;
|
||||||
|
listToAttrs (map (attr: { name = attr; value = f attr set.${attr}; }) (attrNames set))
|
||||||
|
);
|
||||||
|
|
||||||
# fetchTarball version that is compatible between all the versions of Nix
|
# fetchTarball version that is compatible between all the versions of Nix
|
||||||
builtins_fetchTarball = { url, sha256 }@attrs:
|
builtins_fetchTarball = { url, sha256 }@attrs:
|
||||||
let
|
let
|
||||||
@ -39,56 +114,12 @@ let
|
|||||||
else
|
else
|
||||||
fetchurl attrs;
|
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;
|
|
||||||
};
|
|
||||||
in
|
in
|
||||||
# NOTE: spec must _not_ have an "outPath" attribute
|
|
||||||
mapAttrs (
|
mapAttrs (
|
||||||
_: spec:
|
name: spec:
|
||||||
if builtins.hasAttr "outPath" spec
|
if builtins.hasAttr "outPath" spec
|
||||||
then abort
|
then abort
|
||||||
"The values in sources.json should not have an 'outPath' attribute"
|
"The values in sources.json should not have an 'outPath' attribute"
|
||||||
else
|
else
|
||||||
if builtins.hasAttr "url" spec && builtins.hasAttr "sha256" spec
|
spec // { outPath = fetch name spec; }
|
||||||
then
|
|
||||||
spec // { outPath = callFunctionWith spec (getFetcher spec) {}; }
|
|
||||||
else spec
|
|
||||||
) sources
|
) sources
|
||||||
|
Loading…
Reference in New Issue
Block a user