feat: add (incomplete) nix flake

dave.py isn't packaged yet. Will try to do this myself but dealing with
vcpkg is a bit annoying.

Dockerfile

@@ -7,4 +7,4 @@ COPY . .
 
 RUN pip install -r requirements.txt
 
-CMD ["python", "main.py"]
+CMD ["python", "-m", "errornocord.main"]

README.md

@@ -1,3 +1,3 @@
 # ErrorNoCord
 
-Discord music bot for testing purposes, with live reloading support
+Hot-reloadable Discord music bot

default.nix

@@ -0,0 +1,59 @@
+{
+  lib,
+  python3Packages,
+  self,
+  ...
+}:
+let
+  disnake = python3Packages.disnake.overrideAttrs (old: {
+    src = self.pins.disnake;
+
+    propagatedBuildInputs =
+      with python3Packages;
+      old.propagatedBuildInputs
+      ++ [
+        typing-extensions
+        versioningit
+      ];
+
+    nativeBuildInputs = old.nativeBuildInputs ++ [ python3Packages.hatchling ];
+  });
+
+  disnake_paginator = python3Packages.buildPythonPackage {
+    pname = "disnake-paginator";
+    version = "1.0.8";
+
+    src = self.pins.disnake-paginator;
+
+    pyproject = true;
+    build-system = [ python3Packages.setuptools ];
+
+    propagatedBuildInputs = [
+      disnake
+    ];
+
+    doCheck = false;
+  };
+in
+python3Packages.buildPythonApplication {
+  pname = "errornocord";
+  version = "0.1.0";
+
+  src = lib.cleanSource ./.;
+
+  pyproject = true;
+  build-system = [ python3Packages.setuptools ];
+
+  propagatedBuildInputs = with python3Packages; [
+    aiohttp
+    audioop-lts
+    disnake
+    disnake_paginator
+    psutil
+    typing-extensions
+    youtube-transcript-api
+    yt-dlp
+  ];
+
+  doCheck = false;
+}

errornocord/arguments.py

@@ -2,7 +2,7 @@ import argparse
 import contextlib
 import io
 
-import utils
+from . import utils
 
 
 class ArgumentParser:

errornocord/audio/queue.py

@@ -4,8 +4,7 @@ from typing import ClassVar, Optional
 
 import disnake
 
-from constants import BAR_LENGTH, EMBED_COLOR
-
+from ..constants import BAR_LENGTH, EMBED_COLOR
 from .utils import format_duration
 from .youtubedl import YTDLSource
 

errornocord/audio/youtubedl.py

@@ -4,8 +4,7 @@ from typing import Any, Optional
 import disnake
 import yt_dlp
 
-from constants import YTDL_OPTIONS
-
+from ..constants import YTDL_OPTIONS
 from .discord import PCMVolumeTransformer, TrackedAudioSource
 
 ytdl = yt_dlp.YoutubeDL(YTDL_OPTIONS)

errornocord/commands/bot.py

@@ -6,11 +6,10 @@ import disnake
 import psutil
 from yt_dlp import version
 
-import arguments
-import commands
-from constants import EMBED_COLOR
-from state import client, start_time
-from utils import format_duration, reply, surround
+from .. import arguments, commands
+from ..constants import EMBED_COLOR
+from ..state import client, start_time
+from ..utils import format_duration, reply, surround
 
 
 async def status(message):

errornocord/commands/tools.py

@@ -3,11 +3,9 @@ import re
 import aiohttp
 import disnake
 
-import arguments
-import commands
-import utils
-from constants import APPLICATION_FLAGS, BADGE_EMOJIS, EMBED_COLOR, PUBLIC_FLAGS
-from state import client
+from .. import arguments, commands, utils
+from ..constants import APPLICATION_FLAGS, BADGE_EMOJIS, EMBED_COLOR, PUBLIC_FLAGS
+from ..state import client
 
 
 async def lookup(message):

errornocord/commands/utils.py

@@ -1,7 +1,7 @@
 from enum import Enum
 from functools import lru_cache
 
-import constants
+from .. import constants
 
 
 class Command(Enum):

errornocord/commands/voice/channel.py

@@ -1,5 +1,4 @@
-import utils
-
+from ... import utils
 from .utils import command_allowed
 
 

errornocord/commands/voice/playback.py

@@ -1,12 +1,8 @@
 import disnake_paginator
 
-import arguments
-import commands
-import sponsorblock
-import utils
-from constants import EMBED_COLOR
-from state import players
-
+from ... import arguments, commands, sponsorblock, utils
+from ...constants import EMBED_COLOR
+from ...state import players
 from .utils import command_allowed
 
 

errornocord/commands/voice/queue.py

@@ -3,13 +3,9 @@ import itertools
 import disnake
 import disnake_paginator
 
-import arguments
-import audio
-import commands
-import utils
-from constants import EMBED_COLOR
-from state import client, players, trusted_users
-
+from ... import arguments, audio, commands, utils
+from ...constants import EMBED_COLOR
+from ...state import client, players, trusted_users
 from .playback import resume
 from .utils import command_allowed, ensure_joined, play_next
 

errornocord/commands/voice/sponsorblock.py

@@ -1,11 +1,8 @@
 import disnake
 
-import audio
-import sponsorblock
-import utils
-from constants import EMBED_COLOR, SPONSORBLOCK_CATEGORY_NAMES
-from state import players
-
+from ... import audio, sponsorblock, utils
+from ...constants import EMBED_COLOR, SPONSORBLOCK_CATEGORY_NAMES
+from ...state import players
 from .utils import command_allowed
 
 

errornocord/commands/voice/utils.py

@@ -2,8 +2,8 @@ from logging import error
 
 import disnake
 
-import utils
-from state import client, players
+from ... import utils
+from ...state import client, players
 
 
 def play_after_callback(e, message, once):

errornocord/core.py

@@ -12,11 +12,10 @@ from logging import debug
 import disnake
 import disnake_paginator
 
-import commands
-import utils
-from commands import Command as C
-from constants import EMBED_COLOR, OWNERS, PREFIX, RELOADABLE_MODULES
-from state import client, command_cooldowns, command_locks, idle_tracker
+from . import commands, utils
+from .commands import Command as C
+from .constants import EMBED_COLOR, OWNERS, PREFIX, RELOADABLE_MODULES
+from .state import client, command_cooldowns, command_locks, idle_tracker
 
 
 async def on_message(message, edited=False):

errornocord/events.py

@@ -2,11 +2,8 @@ import asyncio
 import threading
 from logging import debug, info, warning
 
-import commands
-import core
-import fun
-import tasks
-from state import client
+from . import commands, core, fun, tasks
+from .state import client
 
 
 def prepare():

errornocord/fun.py

@@ -1,7 +1,7 @@
 import random
 
-import commands
-from constants import REACTIONS
+from . import commands
+from .constants import REACTIONS
 
 
 async def on_message(message):

errornocord/main.py

@@ -1,10 +1,10 @@
 import logging
 
-import constants
-import events
-from state import client
+from . import constants, events
+from .state import client
 
-if __name__ == "__main__":
+
+def main():
     logging.basicConfig(
         format=(
             "%(asctime)s %(levelname)s %(name)s:%(module)s %(message)s"
@@ -18,3 +18,7 @@ if __name__ == "__main__":
 
     events.prepare()
     client.run(constants.SECRETS["TOKEN"])
+
+
+if __name__ == "__main__":
+    main()

errornocord/sponsorblock.py

@@ -3,7 +3,7 @@ import json
 
 import aiohttp
 
-from state import sponsorblock_cache
+from .state import sponsorblock_cache
 
 categories = json.dumps(
     [

errornocord/state.py

@@ -2,7 +2,7 @@ import time
 
 import disnake
 
-from utils import LimitedSizeDict
+from .utils import LimitedSizeDict
 
 intents = disnake.Intents.default()
 intents.message_content = True

errornocord/tasks.py

@@ -4,7 +4,7 @@ from logging import debug, error
 
 import disnake
 
-from state import client, idle_tracker, players
+from .state import client, idle_tracker, players
 
 
 async def cleanup():

errornocord/utils/common.py

@@ -1,6 +1,6 @@
 from collections import OrderedDict
 
-from constants import SECRETS
+from ..constants import SECRETS
 
 
 def surround(inner: str, outer="```") -> str:

errornocord/utils/discord.py

@@ -1,13 +1,12 @@
 import ctypes
 import time
 from logging import debug, error
-from pathlib import Path
 
 import disnake
 
-import commands
-from constants import OWNERS
-from state import command_cooldowns, message_responses
+from .. import commands
+from ..constants import OWNERS
+from ..state import command_cooldowns, message_responses
 
 
 def cooldown(message, cooldown_time: int):

flake.lock

@@ -0,0 +1,61 @@
+{
+  "nodes": {
+    "flake-parts": {
+      "inputs": {
+        "nixpkgs-lib": "nixpkgs-lib"
+      },
+      "locked": {
+        "lastModified": 1772408722,
+        "narHash": "sha256-rHuJtdcOjK7rAHpHphUb1iCvgkU3GpfvicLMwwnfMT0=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "f20dc5d9b8027381c474144ecabc9034d6a839a3",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1773821835,
+        "narHash": "sha256-TJ3lSQtW0E2JrznGVm8hOQGVpXjJyXY2guAxku2O9A4=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "b40629efe5d6ec48dd1efba650c797ddbd39ace0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-lib": {
+      "locked": {
+        "lastModified": 1772328832,
+        "narHash": "sha256-e+/T/pmEkLP6BHhYjx6GmwP5ivonQQn0bJdH9YrRB+Q=",
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "rev": "c185c7a5e5dd8f9add5b2f8ebeff00888b070742",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-parts": "flake-parts",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,41 @@
+{
+  inputs = {
+    flake-parts.url = "github:hercules-ci/flake-parts";
+
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+  };
+
+  outputs =
+    {
+      flake-parts,
+      self,
+      ...
+    }@inputs:
+    flake-parts.lib.mkFlake { inherit inputs; } {
+      systems = [
+        "aarch64-linux"
+        "x86_64-linux"
+      ];
+
+      perSystem =
+        { pkgs, self', ... }:
+        {
+          devShells.default = pkgs.mkShell {
+            name = "errornocord";
+
+            buildInputs = [
+              self'.packages.default
+            ];
+          };
+
+          packages = rec {
+            errornocord = pkgs.callPackage ./. { inherit self; };
+            default = errornocord;
+          };
+        };
+
+      flake.pins = import ./npins;
+    };
+
+  description = "Hot-reloadable Discord music bot";
+}

npins/default.nix

@@ -0,0 +1,249 @@
+/*
+  This file is provided under the MIT licence:
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+# Generated by npins. Do not modify; will be overwritten regularly
+let
+  # Backwards-compatibly make something that previously didn't take any arguments take some
+  # The function must return an attrset, and will unfortunately be eagerly evaluated
+  # Same thing, but it catches eval errors on the default argument so that one may still call it with other arguments
+  mkFunctor =
+    fn:
+    let
+      e = builtins.tryEval (fn { });
+    in
+    (if e.success then e.value else { error = fn { }; }) // { __functor = _self: fn; };
+
+  # https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/lists.nix#L295
+  range =
+    first: last: if first > last then [ ] else builtins.genList (n: first + n) (last - first + 1);
+
+  # 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));
+  concatStrings = builtins.concatStringsSep "";
+
+  # If the environment variable NPINS_OVERRIDE_${name} is set, then use
+  # the path directly as opposed to the fetched source.
+  # (Taken from Niv for compatibility)
+  mayOverride =
+    name: path:
+    let
+      envVarName = "NPINS_OVERRIDE_${saneName}";
+      saneName = stringAsChars (c: if (builtins.match "[a-zA-Z0-9]" c) == null then "_" else c) name;
+      ersatz = builtins.getEnv envVarName;
+    in
+    if ersatz == "" then
+      path
+    else
+      # this turns the string into an actual Nix path (for both absolute and
+      # relative paths)
+      builtins.trace "Overriding path of \"${name}\" with \"${ersatz}\" due to set \"${envVarName}\"" (
+        if builtins.substring 0 1 ersatz == "/" then
+          /. + ersatz
+        else
+          /. + builtins.getEnv "PWD" + "/${ersatz}"
+      );
+
+  mkSource =
+    name: spec:
+    {
+      pkgs ? null,
+    }:
+    assert spec ? type;
+    let
+      # Unify across builtin and pkgs fetchers.
+      # `fetchGit` requires a wrapper because of slight API differences.
+      fetchers =
+        if pkgs == null then
+          {
+            inherit (builtins) fetchTarball fetchurl;
+            # For some fucking reason, fetchGit has a different signature than the other builtin fetchers …
+            fetchGit = args: (builtins.fetchGit args).outPath;
+          }
+        else
+          {
+            fetchTarball =
+              {
+                url,
+                sha256,
+              }:
+              pkgs.fetchzip {
+                inherit url sha256;
+                extension = "tar";
+              };
+            inherit (pkgs) fetchurl;
+            fetchGit =
+              {
+                url,
+                submodules,
+                rev,
+                name,
+                narHash,
+              }:
+              pkgs.fetchgit {
+                inherit url rev name;
+                fetchSubmodules = submodules;
+                hash = narHash;
+              };
+          };
+
+      # Dispatch to the correct code path based on the type
+      path =
+        if spec.type == "Git" then
+          mkGitSource fetchers spec
+        else if spec.type == "GitRelease" then
+          mkGitSource fetchers spec
+        else if spec.type == "PyPi" then
+          mkPyPiSource fetchers spec
+        else if spec.type == "Channel" then
+          mkChannelSource fetchers spec
+        else if spec.type == "Tarball" then
+          mkTarballSource fetchers spec
+        else if spec.type == "Container" then
+          mkContainerSource pkgs spec
+        else
+          builtins.throw "Unknown source type ${spec.type}";
+    in
+    spec // { outPath = mayOverride name path; };
+
+  mkGitSource =
+    {
+      fetchTarball,
+      fetchGit,
+      ...
+    }:
+    {
+      repository,
+      revision,
+      url ? null,
+      submodules,
+      hash,
+      ...
+    }:
+    assert repository ? type;
+    # At the moment, either it is a plain git repository (which has an url), or it is a GitHub/GitLab repository
+    # In the latter case, there we will always be an url to the tarball
+    if url != null && !submodules then
+      fetchTarball {
+        inherit url;
+        sha256 = hash;
+      }
+    else
+      let
+        url =
+          if repository.type == "Git" then
+            repository.url
+          else if repository.type == "GitHub" then
+            "https://github.com/${repository.owner}/${repository.repo}.git"
+          else if repository.type == "GitLab" then
+            "${repository.server}/${repository.repo_path}.git"
+          else if repository.type == "Forgejo" then
+            "${repository.server}/${repository.owner}/${repository.repo}.git"
+          else
+            throw "Unrecognized repository type ${repository.type}";
+        urlToName =
+          url: rev:
+          let
+            matched = builtins.match "^.*/([^/]*)(\\.git)?$" url;
+
+            short = builtins.substring 0 7 rev;
+
+            appendShort = if (builtins.match "[a-f0-9]*" rev) != null then "-${short}" else "";
+          in
+          "${if matched == null then "source" else builtins.head matched}${appendShort}";
+        name = urlToName url revision;
+      in
+      fetchGit {
+        rev = revision;
+        narHash = hash;
+
+        inherit name submodules url;
+      };
+
+  mkPyPiSource =
+    { fetchurl, ... }:
+    {
+      url,
+      hash,
+      ...
+    }:
+    fetchurl {
+      inherit url;
+      sha256 = hash;
+    };
+
+  mkChannelSource =
+    { fetchTarball, ... }:
+    {
+      url,
+      hash,
+      ...
+    }:
+    fetchTarball {
+      inherit url;
+      sha256 = hash;
+    };
+
+  mkTarballSource =
+    { fetchTarball, ... }:
+    {
+      url,
+      locked_url ? url,
+      hash,
+      ...
+    }:
+    fetchTarball {
+      url = locked_url;
+      sha256 = hash;
+    };
+
+  mkContainerSource =
+    pkgs:
+    {
+      image_name,
+      image_tag,
+      image_digest,
+      ...
+    }:
+    if pkgs == null then
+      builtins.throw "container sources require passing in a Nixpkgs value: https://github.com/andir/npins/blob/master/README.md#using-the-nixpkgs-fetchers"
+    else
+      pkgs.dockerTools.pullImage {
+        imageName = image_name;
+        imageDigest = image_digest;
+        finalImageTag = image_tag;
+      };
+in
+mkFunctor (
+  {
+    input ? ./sources.json,
+  }:
+  let
+    data =
+      if builtins.isPath input then
+        # while `readFile` will throw an error anyways if the path doesn't exist,
+        # we still need to check beforehand because *our* error can be caught but not the one from the builtin
+        # *piegames sighs*
+        if builtins.pathExists input then
+          builtins.fromJSON (builtins.readFile input)
+        else
+          throw "Input path ${toString input} does not exist"
+      else if builtins.isAttrs input then
+        input
+      else
+        throw "Unsupported input type ${builtins.typeOf input}, must be a path or an attrset";
+    version = data.version;
+  in
+  if version == 7 then
+    builtins.mapAttrs (name: spec: mkFunctor (mkSource name spec)) data.pins
+  else
+    throw "Unsupported format version ${toString version} in sources.json. Try running `npins upgrade`"
+)

npins/sources.json

@@ -0,0 +1,26 @@
+{
+  "pins": {
+    "disnake": {
+      "type": "Git",
+      "repository": {
+        "type": "GitHub",
+        "owner": "DisnakeDev",
+        "repo": "disnake"
+      },
+      "branch": "master",
+      "submodules": false,
+      "revision": "79afc2d8673299f43636730d4a1518e7901f95fa",
+      "url": "https://github.com/DisnakeDev/disnake/archive/79afc2d8673299f43636730d4a1518e7901f95fa.tar.gz",
+      "hash": "sha256-7gsHFnqTyANdV+eosLI4MlzsMyebLdYZShEVObJPhl8="
+    },
+    "disnake-paginator": {
+      "type": "PyPi",
+      "name": "disnake-paginator",
+      "version_upper_bound": null,
+      "version": "1.0.8",
+      "url": "https://files.pythonhosted.org/packages/8c/db/3a86b247c7653a3f1676d16a316daf400edcf76295098ab60544f2a8f8b7/disnake_paginator-1.0.8.tar.gz",
+      "hash": "sha256-Sn0qbKNkJIdX8GCRRRPxwWutBtG9c1Zt7JnQAsl5I4s="
+    }
+  },
+  "version": 7
+}

pyproject.toml

@@ -0,0 +1,10 @@
+[project]
+name = "errornocord"
+version = "0.1.0"
+
+[project.scripts]
+errornocord = "errornocord.main:main"
+
+[tool.setuptools.packages.find]
+where = ["."]
+include = ["errornocord*"]