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{ stdenv, curl, cacert, writeText, python3Packages
, apiKey
}:
{ name, gameId, uploadId, sha256, version ? null }:
let
cafile = "${cacert}/etc/ssl/certs/ca-bundle.crt";
getDownloadURL = writeText "getitch.py" ''
import os, sys, json
from urllib.parse import urljoin
from urllib.request import urlopen
API_KEY = os.getenv('apiKey')
API_URL = 'https://itch.io/api/1/'
API_BASE = urljoin(API_URL, API_KEY) + '/'
NAME = os.getenv('name')
GAME_ID = int(os.getenv('gameId'))
UPLOAD_ID = int(os.getenv('uploadId'))
VERSION = os.getenv('version', None)
def request(path):
with urlopen(urljoin(API_BASE, path)) as u:
return json.loads(u.read())
def get_versions(key):
url = 'upload/{}/builds'.format(UPLOAD_ID)
return request(url + '?download_key_id=' + str(key))['builds']
def print_download_url(key):
if VERSION is not None:
versions = get_versions(key)
wanted = [ver for ver in versions if ver['user_version'] == VERSION]
if len(wanted) == 1:
url = 'upload/{}/download/builds/{}?download_key_id={}'.format(
UPLOAD_ID, wanted[0]['id'], key
)
sys.stdout.write(request(url)['archive']['url'] + '\n')
return
else:
msg = 'Unknown version {}, recent versions are:\n'.format(VERSION)
sys.stderr.write(msg)
for ver in versions[:20]:
sys.stderr.write('Update date: {}, version: {}\n'.format(
ver['updated_at'], ver['user_version']
))
raise SystemExit(1)
url = 'download-key/{}/download/{}'.format(key, UPLOAD_ID)
sys.stdout.write(request(url)['url'] + '\n')
for key in request('my-owned-keys')['owned_keys']:
if key['game']['id'] == GAME_ID:
print_download_url(key['id'])
raise SystemExit(0)
sys.stderr.write('Unable to find download for game {}!'.format(NAME))
raise SystemExit(1)
'';
in stdenv.mkDerivation {
inherit name apiKey gameId uploadId version;
outputHashAlgo = "sha256";
outputHash = sha256;
SSL_CERT_FILE = "${cacert}/etc/ssl/certs/ca-bundle.crt";
nativeBuildInputs = [ python3Packages.python ];
buildCommand = ''
url="$(python "${getDownloadURL}")"
header "downloading $name from $url"
"${curl.bin or curl}/bin/curl" --fail --output "$out" "$url"
stopNest
'';
}
|
