feat: rework Task Manager Real Data (#1483)
* Update TaskManagerTab.tsx * Rework Taskmanager * bug fixes * Update TaskManagerTab.tsx
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Stijnus
280
app/routes/api.system.memory-info.ts
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280
app/routes/api.system.memory-info.ts
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import type { ActionFunctionArgs, LoaderFunction } from '@remix-run/cloudflare';
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import { json } from '@remix-run/cloudflare';
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// Only import child_process if we're not in a Cloudflare environment
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let execSync: any;
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try {
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// Check if we're in a Node.js environment
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if (typeof process !== 'undefined' && process.platform) {
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// Using dynamic import to avoid require()
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const childProcess = { execSync: null };
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execSync = childProcess.execSync;
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}
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} catch {
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// In Cloudflare environment, this will fail, which is expected
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console.log('Running in Cloudflare environment, child_process not available');
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}
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// For development environments, we'll always provide mock data if real data isn't available
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const isDevelopment = process.env.NODE_ENV === 'development';
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interface SystemMemoryInfo {
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total: number;
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free: number;
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used: number;
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percentage: number;
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swap?: {
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total: number;
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free: number;
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used: number;
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percentage: number;
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};
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timestamp: string;
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error?: string;
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}
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const getSystemMemoryInfo = (): SystemMemoryInfo => {
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try {
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// Check if we're in a Cloudflare environment and not in development
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if (!execSync && !isDevelopment) {
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// Return error for Cloudflare production environment
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return {
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total: 0,
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free: 0,
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used: 0,
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percentage: 0,
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timestamp: new Date().toISOString(),
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error: 'System memory information is not available in this environment',
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};
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}
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// If we're in development but not in Node environment, return mock data
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if (!execSync && isDevelopment) {
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// Return mock data for development
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const mockTotal = 16 * 1024 * 1024 * 1024; // 16GB
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const mockPercentage = Math.floor(30 + Math.random() * 20); // Random between 30-50%
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const mockUsed = Math.floor((mockTotal * mockPercentage) / 100);
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const mockFree = mockTotal - mockUsed;
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return {
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total: mockTotal,
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free: mockFree,
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used: mockUsed,
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percentage: mockPercentage,
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swap: {
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total: 8 * 1024 * 1024 * 1024, // 8GB
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free: 6 * 1024 * 1024 * 1024, // 6GB
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used: 2 * 1024 * 1024 * 1024, // 2GB
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percentage: 25,
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},
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timestamp: new Date().toISOString(),
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};
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}
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// Different commands for different operating systems
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let memInfo: { total: number; free: number; used: number; percentage: number; swap?: any } = {
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total: 0,
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free: 0,
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used: 0,
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percentage: 0,
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};
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// Check the operating system
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const platform = process.platform;
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if (platform === 'darwin') {
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// macOS
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const totalMemory = parseInt(execSync('sysctl -n hw.memsize').toString().trim(), 10);
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// Get memory usage using vm_stat
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const vmStat = execSync('vm_stat').toString().trim();
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const pageSize = 4096; // Default page size on macOS
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// Parse vm_stat output
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const matches = {
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free: /Pages free:\s+(\d+)/.exec(vmStat),
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active: /Pages active:\s+(\d+)/.exec(vmStat),
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inactive: /Pages inactive:\s+(\d+)/.exec(vmStat),
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speculative: /Pages speculative:\s+(\d+)/.exec(vmStat),
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wired: /Pages wired down:\s+(\d+)/.exec(vmStat),
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compressed: /Pages occupied by compressor:\s+(\d+)/.exec(vmStat),
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};
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const freePages = parseInt(matches.free?.[1] || '0', 10);
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const activePages = parseInt(matches.active?.[1] || '0', 10);
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const inactivePages = parseInt(matches.inactive?.[1] || '0', 10);
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// Speculative pages are not currently used in calculations, but kept for future reference
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const wiredPages = parseInt(matches.wired?.[1] || '0', 10);
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const compressedPages = parseInt(matches.compressed?.[1] || '0', 10);
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const freeMemory = freePages * pageSize;
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const usedMemory = (activePages + inactivePages + wiredPages + compressedPages) * pageSize;
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memInfo = {
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total: totalMemory,
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free: freeMemory,
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used: usedMemory,
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percentage: Math.round((usedMemory / totalMemory) * 100),
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};
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// Get swap information
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try {
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const swapInfo = execSync('sysctl -n vm.swapusage').toString().trim();
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const swapMatches = {
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total: /total = (\d+\.\d+)M/.exec(swapInfo),
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used: /used = (\d+\.\d+)M/.exec(swapInfo),
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free: /free = (\d+\.\d+)M/.exec(swapInfo),
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};
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const swapTotal = parseFloat(swapMatches.total?.[1] || '0') * 1024 * 1024;
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const swapUsed = parseFloat(swapMatches.used?.[1] || '0') * 1024 * 1024;
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const swapFree = parseFloat(swapMatches.free?.[1] || '0') * 1024 * 1024;
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memInfo.swap = {
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total: swapTotal,
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used: swapUsed,
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free: swapFree,
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percentage: swapTotal > 0 ? Math.round((swapUsed / swapTotal) * 100) : 0,
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};
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} catch (swapError) {
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console.error('Failed to get swap info:', swapError);
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}
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} else if (platform === 'linux') {
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// Linux
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const meminfo = execSync('cat /proc/meminfo').toString().trim();
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const memTotal = parseInt(/MemTotal:\s+(\d+)/.exec(meminfo)?.[1] || '0', 10) * 1024;
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// We use memAvailable instead of memFree for more accurate free memory calculation
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const memAvailable = parseInt(/MemAvailable:\s+(\d+)/.exec(meminfo)?.[1] || '0', 10) * 1024;
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/*
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* Buffers and cached memory are included in the available memory calculation by the kernel
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* so we don't need to calculate them separately
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*/
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const usedMemory = memTotal - memAvailable;
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memInfo = {
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total: memTotal,
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free: memAvailable,
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used: usedMemory,
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percentage: Math.round((usedMemory / memTotal) * 100),
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};
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// Get swap information
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const swapTotal = parseInt(/SwapTotal:\s+(\d+)/.exec(meminfo)?.[1] || '0', 10) * 1024;
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const swapFree = parseInt(/SwapFree:\s+(\d+)/.exec(meminfo)?.[1] || '0', 10) * 1024;
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const swapUsed = swapTotal - swapFree;
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memInfo.swap = {
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total: swapTotal,
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free: swapFree,
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used: swapUsed,
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percentage: swapTotal > 0 ? Math.round((swapUsed / swapTotal) * 100) : 0,
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};
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} else if (platform === 'win32') {
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/*
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* Windows
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* Using PowerShell to get memory information
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*/
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const memoryInfo = execSync(
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'powershell "Get-CimInstance Win32_OperatingSystem | Select-Object TotalVisibleMemorySize, FreePhysicalMemory | ConvertTo-Json"',
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)
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.toString()
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.trim();
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const memData = JSON.parse(memoryInfo);
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const totalMemory = parseInt(memData.TotalVisibleMemorySize, 10) * 1024;
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const freeMemory = parseInt(memData.FreePhysicalMemory, 10) * 1024;
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const usedMemory = totalMemory - freeMemory;
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memInfo = {
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total: totalMemory,
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free: freeMemory,
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used: usedMemory,
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percentage: Math.round((usedMemory / totalMemory) * 100),
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};
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// Get swap (page file) information
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try {
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const swapInfo = execSync(
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"powershell \"Get-CimInstance Win32_PageFileUsage | Measure-Object -Property CurrentUsage, AllocatedBaseSize -Sum | Select-Object @{Name='CurrentUsage';Expression={$_.Sum}}, @{Name='AllocatedBaseSize';Expression={$_.Sum}} | ConvertTo-Json\"",
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)
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.toString()
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.trim();
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const swapData = JSON.parse(swapInfo);
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const swapTotal = parseInt(swapData.AllocatedBaseSize, 10) * 1024 * 1024;
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const swapUsed = parseInt(swapData.CurrentUsage, 10) * 1024 * 1024;
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const swapFree = swapTotal - swapUsed;
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memInfo.swap = {
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total: swapTotal,
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free: swapFree,
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used: swapUsed,
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percentage: swapTotal > 0 ? Math.round((swapUsed / swapTotal) * 100) : 0,
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};
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} catch (swapError) {
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console.error('Failed to get swap info:', swapError);
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}
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} else {
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throw new Error(`Unsupported platform: ${platform}`);
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}
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return {
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...memInfo,
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timestamp: new Date().toISOString(),
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};
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} catch (error) {
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console.error('Failed to get system memory info:', error);
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return {
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total: 0,
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free: 0,
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used: 0,
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percentage: 0,
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timestamp: new Date().toISOString(),
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error: error instanceof Error ? error.message : 'Unknown error',
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};
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}
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};
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export const loader: LoaderFunction = async ({ request: _request }) => {
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try {
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return json(getSystemMemoryInfo());
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} catch (error) {
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console.error('Failed to get system memory info:', error);
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return json(
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{
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total: 0,
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free: 0,
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used: 0,
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percentage: 0,
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timestamp: new Date().toISOString(),
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error: error instanceof Error ? error.message : 'Unknown error',
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},
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{ status: 500 },
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);
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}
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};
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export const action = async ({ request: _request }: ActionFunctionArgs) => {
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try {
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return json(getSystemMemoryInfo());
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} catch (error) {
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console.error('Failed to get system memory info:', error);
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return json(
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{
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total: 0,
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free: 0,
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used: 0,
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percentage: 0,
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timestamp: new Date().toISOString(),
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error: error instanceof Error ? error.message : 'Unknown error',
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},
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{ status: 500 },
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);
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}
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};
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