This commit is contained in:
JuLi0n21 2026-04-15 22:47:27 +02:00
commit 7697319a4d
11 changed files with 76 additions and 103 deletions

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# @ns/tui
Provides a terminal-based interface for viewing and analyzing Nix evaluator
statistics.

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{
"name": "@ns/tui",
"version": "1.0.0",
"type": "module",
"bin": {
"ns-tui": "./dist/cli.js"
},
"scripts": {
"build": "tsc",
"check": "tsc --noEmit",
"dev": "node --loader ts-node/esm src/cli.ts"
},
"dependencies": {
"@ns/core": "workspace:*"
},
"devDependencies": {
"@types/node": "^25.5.2",
"typescript": "^6.0.2"
}
}

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#!/usr/bin/env node
import { readFile } from 'fs/promises';
import { parseStats } from '@ns/core';
async function main() {
const args = process.argv.slice(2);
// FIXME: nuke all of this actually
if (args.length === 0) {
console.log('NS');
console.log('\nUsage: ns-tui <stats.json>');
process.exit(1);
}
const filePath = args[0];
try {
const content = await readFile(filePath, 'utf-8');
const raw = JSON.parse(content);
const stats = parseStats(raw);
console.log('\n=== Nix Evaluator Statistics ===\n');
console.log(`CPU Time: ${stats.cpuTime.toFixed(3)}s`);
console.log(`Expressions: ${stats.nrExprs.toLocaleString()}`);
console.log(`Thunks: ${stats.nrThunks.toLocaleString()}`);
console.log(` - Avoided: ${stats.nrAvoided.toLocaleString()}`);
console.log(` - Ratio: ${((stats.nrAvoided / stats.nrThunks) * 100).toFixed(2)}%`);
const totalMemory =
stats.envs.bytes +
stats.list.bytes +
stats.values.bytes +
stats.symbols.bytes +
stats.sets.bytes;
console.log(`Total Memory: ${(totalMemory / 1024 / 1024).toFixed(2)} MB`);
console.log('\n=== Memory Breakdown ===\n');
console.log(`Environments: ${(stats.envs.bytes / 1024 / 1024).toFixed(2)} MB`);
console.log(`Lists: ${(stats.list.bytes / 1024 / 1024).toFixed(2)} MB`);
console.log(`Values: ${(stats.values.bytes / 1024 / 1024).toFixed(2)} MB`);
console.log(`Symbols: ${(stats.symbols.bytes / 1024 / 1024).toFixed(2)} MB`);
console.log(`Sets: ${(stats.sets.bytes / 1024 / 1024).toFixed(2)} MB`);
if (stats.gc) {
console.log('\n=== Garbage Collection ===\n');
console.log(`Heap Size: ${(stats.gc.heapSize / 1024 / 1024).toFixed(2)} MB`);
console.log(`Total Alloc: ${(stats.gc.totalBytes / 1024 / 1024).toFixed(2)} MB`);
console.log(`GC Cycles: ${stats.gc.cycles.toLocaleString()}`);
}
console.log('\n' + '='.repeat(40));
console.log('='.repeat(40) + '\n');
} catch (error) {
console.error('Error:', error instanceof Error ? error.message : String(error));
process.exit(1);
}
}
main();

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{
"compilerOptions": {
"target": "ES2022",
"module": "ES2022",
"lib": ["ES2022"],
"types": ["node"],
"moduleResolution": "bundler",
"outDir": "./dist",
"rootDir": "./src",
"declaration": true,
"declarationMap": true,
"sourceMap": true,
"strict": true,
"esModuleInterop": true,
"skipLibCheck": true,
"forceConsistentCasingInFileNames": true
},
"include": ["src/**/*"]
}

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@ -38,6 +38,13 @@ function App() {
// Load from localStorage on mount
onMount(() => {
const query = window.location.search;
const urlParams = new URLSearchParams(query);
const file = urlParams.get('file');
if (file) {
loadFromText(atob(file));
}
try {
const saved = localStorage.getItem(STORAGE_KEY);
if (saved) {