3
0
Fork 0
forked from mirrors/nixpkgs
nixpkgs/pkgs/servers/mautrix-telegram/default.nix
Maximilian Bosch 0a94f89fca
mautrix-telegram: patch away alembic dependency
`alembic`[1] is a database migration tool which is invoked from the CLI
when installing the telegram bridge, but never needed during the
runtime.

The reason why `alembic` is required here is to ensure that it
exists in the Python environment when deploying the bridge. However
`alembic` requires `mautrix-telegram` in its environment to create a
database schema from the Python models.

Such a dependency relation may be possible with tools like virtualenv,
however it'll result in an infinite recursion at evaluation time in Nix.

With this patch, `mautrix-telegram` doesn't depend on `alembic` anymore
and provides a patched alembic (`pkgs.mautrix-telegram.alembic`) which
has `mautrix-telegram` in its path.

[1] https://alembic.sqlalchemy.org/en/latest/
2019-05-24 09:35:39 +02:00

59 lines
1.4 KiB
Nix

{ lib, python3, mautrix-telegram }:
with python3.pkgs;
buildPythonPackage rec {
pname = "mautrix-telegram";
version = "0.5.1";
src = fetchPypi {
inherit pname version;
sha256 = "51951845e52c4ca5410e0f4a51d99014dd6df2fcedfca8b7241e045359cbf112";
};
postPatch = ''
sed -i -e '/alembic>/d' setup.py
'';
propagatedBuildInputs = [
Mako
aiohttp
mautrix-appservice
sqlalchemy
CommonMark
ruamel_yaml
future-fstrings
python_magic
telethon
telethon-session-sqlalchemy
pillow
lxml
];
# `alembic` (a database migration tool) is only needed for the initial setup,
# and not needed during the actual runtime. However `alembic` requires `mautrix-telegram`
# in its environment to create a database schema from all models.
#
# Hence we need to patch away `alembic` from `mautrix-telegram` and create an `alembic`
# which has `mautrix-telegram` in its environment.
passthru.alembic = alembic.overrideAttrs (old: {
propagatedBuildInputs = old.propagatedBuildInputs ++ [
mautrix-telegram
];
});
checkInputs = [
pytest
pytestrunner
pytest-mock
pytest-asyncio
];
meta = with lib; {
homepage = https://github.com/tulir/mautrix-telegram;
description = "A Matrix-Telegram hybrid puppeting/relaybot bridge";
license = licenses.agpl3Plus;
maintainers = with maintainers; [ nyanloutre ma27 ];
};
}