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allow modpack to fetch dependencies from curseforge. #12

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allow modpack to fetch dependencies from curseforge. #12

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53 changes: 33 additions & 20 deletions src/ftb.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -13,37 +13,50 @@
# You should have received a copy of the GNU General Public License
# along with nix-minecraft. If not, see <https://www.gnu.org/licenses/>.

{ config, pkgs, lib, ... }:
{
config,
pkgs,
lib,
...
}:
let
inherit (lib) mkOption mkIf types;
cfg = config.modpack.ftb;

json = lib.importJSON (pkgs.fetchurl {
url = "https://api.modpacks.ch/public/modpack/${toString cfg.id}/${toString cfg.version}";
inherit (cfg) hash;
});
json = lib.importJSON (
pkgs.fetchurl {
url = "https://api.modpacks.ch/public/modpack/${toString cfg.id}/${toString cfg.version}";
inherit (cfg) hash;
}
);

files = map
(f: {
path = "${f.path}/${f.name}";
source = pkgs.fetchurl {
files = map (f: {
path = "${f.path}/${f.name}";
source =
pkgs.fetchurl {
inherit (f) sha1;
url = builtins.replaceStrings [ " " ] [ "%20" ] f.url;
url = builtins.replaceStrings [ " " ] [ "%20" ] (
if (builtins.hasAttr "curseforge" f) then
let
fileId = toString f.curseforge.file;
in
"https://mediafilez.forgecdn.net/files/${builtins.substring 0 4 fileId}/${builtins.substring 4 7 fileId}/${f.name}"
else
f.url
);
name = lib.strings.sanitizeDerivationName f.name;
curlOpts = "--globoff"; # do not misinterpret [] brackets
};
})
(builtins.filter (f: !f.serveronly) json.files);
}) (builtins.filter (f: !f.serveronly) json.files);

forgeVersion = (lib.findFirst
(t: t.name == "forge")
(throw "forge not found in modpack targets")
json.targets).version;
forgeVersion =
(lib.findFirst (t: t.name == "forge") (throw "forge not found in modpack targets") json.targets)
.version;

mcVersion = (lib.findFirst
(t: t.name == "minecraft")
(throw "minecraft not found in modpack targets")
json.targets).version;
mcVersion =
(lib.findFirst (
t: t.name == "minecraft"
) (throw "minecraft not found in modpack targets") json.targets).version;
in
{
options.modpack.ftb = {
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