Initial commit

verify-package-size.js

@@ -0,0 +1,135 @@
+#!/usr/bin/env node
+
+import fs from 'fs'
+import path from 'path'
+import { execSync } from 'child_process'
+import { fileURLToPath } from 'url'
+
+// Get the current directory
+const __filename = fileURLToPath(import.meta.url)
+const __dirname = path.dirname(__filename)
+
+// Function to get the size of a file in MB
+function getFileSizeInMB(filePath) {
+  const stats = fs.statSync(filePath)
+  return stats.size / (1024 * 1024)
+}
+
+// Function to check if a file should be included in the package
+function shouldIncludeFile(filePath, npmignorePatterns, includePatterns) {
+  const relativePath = path.relative('.', filePath)
+
+  // Check if the file matches any npmignore pattern
+  for (const pattern of npmignorePatterns) {
+    if (pattern.test(relativePath)) {
+      return false
+    }
+  }
+
+  // If we have explicit include patterns, check if the file matches any
+  if (includePatterns.length > 0) {
+    for (const pattern of includePatterns) {
+      if (pattern.test(relativePath)) {
+        return true
+      }
+    }
+    return false
+  }
+
+  return true
+}
+
+// Parse .npmignore file
+function parseNpmignore() {
+  const patterns = []
+  if (fs.existsSync('.npmignore')) {
+    const content = fs.readFileSync('.npmignore', 'utf8')
+    const lines = content.split('\n')
+
+    for (const line of lines) {
+      const trimmedLine = line.trim()
+      if (trimmedLine && !trimmedLine.startsWith('#')) {
+        // Convert glob pattern to regex
+        let pattern = trimmedLine
+          .replace(/\./g, '\\.')
+          .replace(/\*/g, '.*')
+          .replace(/\?/g, '.')
+
+        // Handle directory patterns
+        if (pattern.endsWith('/')) {
+          pattern = `${pattern}.*`
+        }
+
+        patterns.push(new RegExp(`^${pattern}$`))
+      }
+    }
+  }
+  return patterns
+}
+
+// Parse package.json files array
+function parsePackageFiles() {
+  const patterns = []
+  const packageJson = JSON.parse(fs.readFileSync('package.json', 'utf8'))
+
+  if (packageJson.files && Array.isArray(packageJson.files)) {
+    for (const pattern of packageJson.files) {
+      // Convert glob pattern to regex
+      let regexPattern = pattern
+        .replace(/\./g, '\\.')
+        .replace(/\*/g, '.*')
+        .replace(/\?/g, '.')
+
+      // Handle directory patterns
+      if (regexPattern.endsWith('/')) {
+        regexPattern = `${regexPattern}.*`
+      }
+
+      patterns.push(new RegExp(`^${regexPattern}$`))
+    }
+  }
+
+  return patterns
+}
+
+// Calculate the total size of files that would be included in the package
+function calculatePackageSize() {
+  const npmignorePatterns = parseNpmignore()
+  const includePatterns = parsePackageFiles()
+
+  let totalSize = 0
+  let includedFiles = []
+
+  function processDirectory(dirPath) {
+    const entries = fs.readdirSync(dirPath, { withFileTypes: true })
+
+    for (const entry of entries) {
+      const fullPath = path.join(dirPath, entry.name)
+
+      if (entry.isDirectory()) {
+        processDirectory(fullPath)
+      } else if (entry.isFile()) {
+        if (shouldIncludeFile(fullPath, npmignorePatterns, includePatterns)) {
+          const sizeInMB = getFileSizeInMB(fullPath)
+          totalSize += sizeInMB
+          includedFiles.push({ path: fullPath, size: sizeInMB })
+        }
+      }
+    }
+  }
+
+  processDirectory('.')
+
+  // Sort files by size (largest first)
+  includedFiles.sort((a, b) => b.size - a.size)
+
+  console.log('Estimated package size: ' + totalSize.toFixed(2) + ' MB')
+  console.log('\nLargest files:')
+  for (let i = 0; i < Math.min(10, includedFiles.length); i++) {
+    console.log(
+      `${includedFiles[i].path}: ${includedFiles[i].size.toFixed(2)} MB`
+    )
+  }
+}
+
+calculatePackageSize()