luochen1990’s gists

luochen1990 / nixos-rebuild-trace.sh

Created November 7, 2025 06:57

简短打印 nixos-rebuild 报错栈。谢谢 dram 提供的思路

	#!/usr/bin/env bash
	# 针对 error: Package ‘xxx’ in /nix/store/xxx is marked as insecure, refusing to evaluate. 的报错，打印它的依赖栈
	# 由以下惯用命令得到启发: nixos-rebuild build --show-trace \| rg 'while evaluating derivation'

	set -euo pipefail

	if [[ $# -gt 1 ]]; then
	echo "Usage: $(basename "$0") [hostname]"
	exit 1
	fi

luochen1990 / journalctl.output

Created September 8, 2024 05:53

Open-WebUI bug report

	9月 08 13:50:02 home-router open-webui[140332]: INFO [open_webui.apps.openai.main] get_all_models()
	9月 08 13:50:08 home-router open-webui[140332]: ERROR [open_webui.apps.openai.main] Connection error:
	9月 08 13:50:08 home-router open-webui[140332]: ERROR [open_webui.apps.openai.main] Connection error:
	9月 08 13:50:08 home-router open-webui[140332]: ERROR [open_webui.apps.openai.main] Connection error:
	9月 08 13:50:08 home-router open-webui[140332]: DEBUG [open_webui.apps.openai.main] get_all_models:responses() [None, None, None]
	9月 08 13:50:08 home-router open-webui[140332]: DEBUG [open_webui.apps.openai.main] merge_models_lists <map object at 0x7f6cad8365c0>
	9月 08 13:50:08 home-router open-webui[140332]: DEBUG [open_webui.apps.openai.main] models: {'data': []}
	9月 08 13:50:08 home-router open-webui[140332]: INFO [open_webui.apps.openai.main] get_all_models()
	9月 08 13:50:10 home-router open-webui[140332]: DEBUG [open_webui.main] Commit session after request
	9月 08 13:50:10 home-router open-webui[140332]: INFO:

luochen1990 / journalctl.log

Created September 6, 2024 04:53

open-webui error report

	INFO: 10.40.10.1:0 - "POST /api/chat/completed HTTP/1.0" 500 Internal Server Error
	ERROR: Exception in ASGI application
	+ Exception Group Traceback (most recent call last):
	\| File "/nix/store/ivmgz1axqf7i0vr1pbm5r4i0hb01an0h-python3.12-starlette-0.37.2/lib/python3.12/site-packages/starlette/_utils.py", line 87, in collapse_excgroups
	\| yield
	\| File "/nix/store/ivmgz1axqf7i0vr1pbm5r4i0hb01an0h-python3.12-starlette-0.37.2/lib/python3.12/site-packages/starlette/middleware/base.py", line 190, in __call__
	\| async with anyio.create_task_group() as task_group:
	\| File "/nix/store/3vg8ys3dm90a5bi692x3f2hza11b670d-python3.12-anyio-4.3.0/lib/python3.12/site-packages/anyio/_backends/_asyncio.py", line 678, in __aexit__
	\| raise BaseExceptionGroup(
	\| ExceptionGroup: unhandled errors in a TaskGroup (1 sub-exception)

luochen1990 / Pylance_typing_issue_MRE.py

Created August 11, 2024 14:57

Pylance typing issue MRE

	def f(x: int):
	return x + 1


	a: int = "abc"
	f(a)


	def g():
	from collections import namedtuple

luochen1990 / hello.py

Last active July 11, 2024 07:53

Demo for Nix as Shebang

	#!/usr/bin/env nix-shell
	#! nix-shell -p 'python3.withPackages (ps: with ps; [ msgspec ])' -i python3

	import msgspec
	print('hello')

luochen1990 / merge_pdf.py

Created September 13, 2023 10:09

合并多个 pdf 文件

	#!/usr/bin/env nix-shell
	#!nix-shell -i python --packages python311 python311Packages.pypdf2

	import PyPDF2

	def merge_pdfs(input_path_list: list[str], output_path: str):
	pdfWriter = PyPDF2.PdfWriter()

	for input_path in input_path_list:
	pdf1 = PyPDF2.PdfReader(open(input_path, "rb"))

luochen1990 / settings.json

Created August 22, 2023 04:54

VSCode Python strict mode config

	{
	"files.trimTrailingWhitespace": true,
	"python.languageServer": "Pylance",
	"python.analysis.typeCheckingMode": "strict",
	"python.analysis.diagnosticSeverityOverrides": {
	"reportImportCycles": "warning",
	"reportUnnecessaryComparison": "information",
	"reportUnnecessaryIsInstance": "information",
	"reportUnnecessaryContains": "information",
	"reportUnusedImport": "information",

luochen1990 / popo.nix

Last active October 19, 2022 05:47

(wip) netease popo

	#NOTE: not working yet, need debuging

	{pkgs ? import <nixpkgs> {}, ...}:

	pkgs.stdenv.mkDerivation rec {
	pname = "popo";
	version = "3.56.1";

	src = pkgs.fetchurl {
	url = "https://popo.netease.com/file/popolinux/popo_${version}_amd64_ubuntu.deb";

luochen1990 / flake.nix

Created July 7, 2022 14:42

An easy Haskell develop environment (useage: nix develop)

	{
	inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
	inputs.flake-utils.url = "github:numtide/flake-utils";

	outputs = { self, nixpkgs, flake-utils }:
	flake-utils.lib.eachDefaultSystem (system:
	let
	pkgs = nixpkgs.legacyPackages.${system};
	hpkgs = pkgs.haskell.packages.ghc923;
	in rec {

luochen1990 / nix-repl.expect

Last active May 30, 2022 13:49

A convient nix-repl to debug your nix flakes

Luo Chen luochen1990