ng-upgrade-orchestrator
Version:
Enterprise-grade Angular Multi-Version Upgrade Orchestrator with automatic npm installation, comprehensive dependency management, and seamless integration of all 9 official Angular migrations. Safely migrate Angular applications across multiple major vers
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JavaScript
"use strict";
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})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.BaseVersionHandler = void 0;
const fs = __importStar(require("fs-extra"));
const path = __importStar(require("path"));
const child_process_1 = require("child_process");
const DependencyInstaller_1 = require("../utils/DependencyInstaller");
const FileContentPreserver_1 = require("../utils/FileContentPreserver");
const AdvancedContentPreserver_1 = require("../utils/AdvancedContentPreserver");
const ProgressReporter_1 = require("../utils/ProgressReporter");
const UpgradeReportGenerator_1 = require("../utils/UpgradeReportGenerator");
const DependencyCompatibilityMatrix_1 = require("../utils/DependencyCompatibilityMatrix");
const NgCompatibilityUpdater_1 = require("../utils/NgCompatibilityUpdater");
/**
* Base class for all Angular version handlers providing common upgrade functionality
*
* This abstract class serves as the foundation for all version-specific upgrade handlers,
* providing shared infrastructure for dependency management, configuration updates,
* migration execution, and progress reporting. Each concrete handler extends this class
* to implement version-specific transformations.
*
* @abstract
* @implements {VersionHandler}
*
* @example
* ```typescript
* export class Angular16Handler extends BaseVersionHandler {
* readonly version = '16';
*
* protected async applyVersionSpecificChanges(projectPath: string, options: UpgradeOptions): Promise<void> {
* // Implementation specific to Angular 16
* }
* }
* ```
*
* @since 1.0.0
* @author Angular Multi-Version Upgrade Orchestrator
*/
class BaseVersionHandler {
/** Utility for managing dependency installations and updates */
dependencyInstaller;
/** Advanced content preservation system for intelligent code merging */
contentPreserver;
/** Detailed upgrade report generator for tracking all changes */
reportGenerator;
/** Utility for reporting upgrade progress and status messages */
progressReporter;
/**
* Executes the complete version-specific upgrade process
*
* Orchestrates the entire upgrade workflow including dependency updates,
* configuration changes, code transformations, and validation. This is the
* main entry point for version upgrades.
*
* @param projectPath - The absolute path to the Angular project root
* @param step - The upgrade step configuration with source and target versions
* @param options - Comprehensive upgrade options including strategy and validation level
* @throws {Error} When critical upgrade operations fail
*
* @example
* ```typescript
* const handler = new Angular16Handler();
* await handler.execute('/path/to/project', {
* fromVersion: '15',
* toVersion: '16'
* }, {
* strategy: 'balanced',
* validationLevel: 'comprehensive'
* });
* ```
*/
async execute(projectPath, step, options) {
this.dependencyInstaller = new DependencyInstaller_1.DependencyInstaller(projectPath);
this.contentPreserver = new AdvancedContentPreserver_1.AdvancedContentPreserver(projectPath);
this.progressReporter = options.progressReporter || new ProgressReporter_1.ProgressReporter();
// Initialize report generator
const projectName = path.basename(projectPath);
this.reportGenerator = new UpgradeReportGenerator_1.UpgradeReportGenerator(projectPath, projectName, step.fromVersion, step.toVersion, options.strategy || 'balanced');
this.progressReporter.startStep(`Angular ${this.version} Upgrade`, `Starting Angular ${this.version} upgrade...`);
// Update Angular dependencies with automatic installation
this.progressReporter.updateMessage('Updating Angular dependencies...');
await this.updateAngularDependencies(projectPath);
// Update TypeScript if needed
await this.updateTypeScript(projectPath);
// Update Angular CLI
await this.updateAngularCli(projectPath);
// Ensure all dependencies are properly installed before proceeding
this.progressReporter.updateMessage('Verifying dependency installation...');
await this.ensureDependenciesInstalled(projectPath);
// Apply version-specific transformations
await this.applyVersionSpecificChanges(projectPath, options);
// Update configuration files
await this.updateConfigurationFiles(projectPath, options);
// Run Angular update schematics
await this.runAngularUpdateSchematics(projectPath);
// Generate detailed upgrade report
this.progressReporter.updateMessage('Generating upgrade report...');
try {
const reportPath = await this.reportGenerator.generateReport(true);
this.progressReporter.info(`Detailed upgrade report generated: ${reportPath}`);
}
catch (error) {
this.progressReporter.warn(`Failed to generate upgrade report: ${error instanceof Error ? error.message : String(error)}`);
}
this.progressReporter.completeStep(`Angular ${this.version} Upgrade`, `Angular ${this.version} upgrade completed successfully`);
}
/**
* Validates all prerequisites required for this Angular version upgrade
*
* Checks Node.js version, TypeScript compatibility, and project structure
* to ensure the upgrade can proceed safely. Each version handler can override
* this method to add version-specific validation requirements.
*
* @param projectPath - The absolute path to the Angular project root
* @returns Promise resolving to true if all prerequisites are met
*
* @example
* ```typescript
* const isReady = await handler.validatePrerequisites('/path/to/project');
* if (!isReady) {
* throw new Error('Prerequisites not met for Angular 16 upgrade');
* }
* ```
*/
async validatePrerequisites(projectPath) {
try {
// Check Node.js version
const nodeVersion = process.version;
const requiredNode = this.getRequiredNodeVersion();
if (!this.isVersionCompatible(nodeVersion, requiredNode)) {
this.progressReporter?.error(`Node.js ${requiredNode} required, found ${nodeVersion}`);
return false;
}
// Check if project is an Angular project
const packageJsonPath = path.join(projectPath, 'package.json');
if (!await fs.pathExists(packageJsonPath)) {
this.progressReporter?.error('package.json not found');
return false;
}
const packageJson = await fs.readJson(packageJsonPath);
if (!packageJson.dependencies?.['@angular/core']) {
this.progressReporter?.error('Not an Angular project');
return false;
}
return true;
}
catch (error) {
this.progressReporter?.error(`Prerequisite validation failed: ${error}`);
return false;
}
}
/**
* Update Angular dependencies to target version with automatic installation
*/
async updateAngularDependencies(projectPath) {
try {
// Track Angular package dependencies before update
const packageJsonPath = path.join(projectPath, 'package.json');
const packageJson = await fs.readJson(packageJsonPath);
// Use the DependencyInstaller for automatic installation
const success = await this.dependencyInstaller.updateAngularPackages(this.version);
// Track dependency changes
const updatedPackageJson = await fs.readJson(packageJsonPath);
this.trackDependencyUpdates(packageJson, updatedPackageJson, '@angular/');
if (!success) {
this.progressReporter.warn('Angular dependencies updated in package.json. Dependencies will be verified later.');
this.reportGenerator.addWarning('Angular dependency installation required manual verification');
}
else {
this.progressReporter.success('Angular dependencies installed successfully');
this.reportGenerator.addSuccessStory('Angular dependencies updated and installed automatically');
}
}
catch (error) {
const errorMsg = error instanceof Error ? error.message : String(error);
this.progressReporter.warn(`Angular dependency update failed: ${errorMsg}`);
this.reportGenerator.addError(`Angular dependency update failed: ${errorMsg}`);
// Don't fail the entire upgrade, dependencies will be verified later
}
}
/**
* Update third-party dependencies compatible with target Angular version
* Uses NgCompatibilityUpdater for comprehensive dependency checking
*/
async updateThirdPartyDependencies(projectPath) {
try {
this.progressReporter.updateMessage(`Checking Angular ${this.version} compatibility...`);
// Use NgCompatibilityUpdater for comprehensive checking
const updater = new NgCompatibilityUpdater_1.NgCompatibilityUpdater(this.version);
const result = await updater.checkAndUpdate(projectPath, {
dryRun: false, // Apply updates automatically during upgrade
includeDevDependencies: true,
onlyAngularEcosystem: false, // Check all dependencies
updateStrategy: 'conservative' // Conservative approach during automated upgrade
});
// Report results
if (result.totalUpdates > 0) {
this.progressReporter.success(`✓ Updated ${result.totalUpdates} dependencies for Angular ${this.version} compatibility`);
// Log individual updates
result.updates.forEach(update => {
if (update.updateType === 'deprecated') {
this.progressReporter.warn(`Removed deprecated package: ${update.name}`);
this.reportGenerator.addWarning(`Deprecated package removed: ${update.name} - ${update.notes || 'No longer maintained'}`);
}
else {
this.reportGenerator.addSuccessStory(`Updated ${update.name}: ${update.currentVersion} → ${update.compatibleVersion}`);
if (update.notes) {
this.progressReporter.info(`${update.name}: ${update.notes}`);
}
}
});
// Report critical updates
if (result.criticalUpdates > 0) {
this.progressReporter.warn(`⚠️ ${result.criticalUpdates} critical updates were applied`);
}
// Report deprecated packages
if (result.deprecated.length > 0) {
this.progressReporter.warn(`🗑️ Removed ${result.deprecated.length} deprecated packages: ${result.deprecated.join(', ')}`);
result.deprecated.forEach(pkg => {
this.reportGenerator.addWarning(`Deprecated package removed: ${pkg}`);
});
}
}
else {
this.progressReporter.info('✓ All dependencies already compatible with Angular ' + this.version);
}
// Report any warnings
if (result.warnings.length > 0) {
result.warnings.forEach(warning => {
this.progressReporter.warn(warning);
this.reportGenerator.addWarning(warning);
});
}
// Fallback to legacy method for packages not covered by NgCompatibilityUpdater
await this.updateRemainingDependencies(projectPath);
}
catch (error) {
const errorMsg = error instanceof Error ? error.message : String(error);
this.progressReporter.warn(`Advanced dependency update failed, falling back to basic update: ${errorMsg}`);
// Fallback to original method
await this.updateRemainingDependencies(projectPath);
}
}
/**
* Fallback method for packages not covered by NgCompatibilityUpdater
*/
async updateRemainingDependencies(projectPath) {
try {
const packageJsonPath = path.join(projectPath, 'package.json');
const packageJson = await fs.readJson(packageJsonPath);
// Get compatible versions for this Angular version
const compatibleDependencies = DependencyCompatibilityMatrix_1.DependencyCompatibilityMatrix.getCompatibleDependencies(this.version);
let updated = false;
const updates = [];
// Update existing third-party packages to compatible versions (legacy method)
for (const dep of compatibleDependencies) {
const existingVersion = packageJson.dependencies?.[dep.name] ||
packageJson.devDependencies?.[dep.name];
if (existingVersion && existingVersion !== dep.version) {
// Only update if NgCompatibilityUpdater didn't handle it
const currentInPackageJson = packageJson.dependencies?.[dep.name] || packageJson.devDependencies?.[dep.name];
if (currentInPackageJson === existingVersion) { // Still the old version, wasn't updated
if (dep.type === 'dependencies') {
packageJson.dependencies[dep.name] = dep.version;
}
else {
packageJson.devDependencies = packageJson.devDependencies || {};
packageJson.devDependencies[dep.name] = dep.version;
}
updates.push(`${dep.name}: ${existingVersion} → ${dep.version}`);
updated = true;
}
}
}
if (updated) {
await fs.writeJson(packageJsonPath, packageJson, { spaces: 2 });
this.progressReporter.info(`✓ Updated ${updates.length} additional dependencies`);
this.reportGenerator.addSuccessStory(`Additional dependencies updated: ${updates.join(', ')}`);
}
}
catch (error) {
const errorMsg = error instanceof Error ? error.message : String(error);
this.progressReporter.warn(`Fallback dependency update failed: ${errorMsg}`);
this.reportGenerator.addError(`Fallback dependency update failed: ${errorMsg}`);
}
}
/**
* Update TypeScript version with automatic installation
*/
async updateTypeScript(_projectPath) {
const requiredTsVersion = this.getRequiredTypeScriptVersion();
this.progressReporter.updateMessage(`Installing TypeScript ${requiredTsVersion}...`);
const success = await this.dependencyInstaller.updateTypeScript(requiredTsVersion);
if (!success) {
this.progressReporter.warn('TypeScript version updated in package.json. Manual npm install may be required.');
}
else {
this.progressReporter.success(`TypeScript ${requiredTsVersion} installed successfully`);
}
}
/**
* Update Angular CLI with automatic installation
*/
async updateAngularCli(_projectPath) {
// Angular CLI is already updated as part of updateAngularDependencies
// This method is kept for compatibility but the work is done above
this.progressReporter.info('Angular CLI updated with other Angular packages');
}
/**
* Update configuration files while preserving existing content
*/
async updateConfigurationFiles(projectPath, options) {
// Update main.ts using FileContentPreserver if needed for Angular 14+
const mainTsPath = path.join(projectPath, 'src', 'main.ts');
if (await fs.pathExists(mainTsPath)) {
const targetVersion = parseInt(this.version);
if (targetVersion >= 14 && options.strategy !== 'conservative') {
// Use FileContentPreserver to update main.ts while preserving custom code
await FileContentPreserver_1.FileContentPreserver.updateMainTsFile(mainTsPath, targetVersion);
this.progressReporter?.success('Updated main.ts while preserving custom code');
}
}
await this.updateAngularJson(projectPath);
await this.updateTsConfig(projectPath);
if (options.strategy !== 'conservative') {
await this.updateOptionalConfigs(projectPath);
// Update template files for Angular 17+ (optional)
if (parseInt(this.version) >= 17) {
await this.updateTemplateFiles(projectPath);
}
}
}
/**
* Update angular.json configuration
*/
async updateAngularJson(projectPath) {
const angularJsonPath = path.join(projectPath, 'angular.json');
if (await fs.pathExists(angularJsonPath)) {
const angularJson = await fs.readJson(angularJsonPath);
// Update builder versions and configurations
this.updateBuilderConfigurations(angularJson);
await fs.writeJson(angularJsonPath, angularJson, { spaces: 2 });
}
}
/**
* Update builder configurations in angular.json
*/
updateBuilderConfigurations(angularJson) {
// Update schema version based on Angular version
const schemaMap = {
'12': './node_modules/@angular/cli/lib/config/schema.json',
'13': './node_modules/@angular/cli/lib/config/schema.json',
'14': './node_modules/@angular/cli/lib/config/schema.json',
'15': './node_modules/@angular/cli/lib/config/schema.json',
'16': './node_modules/@angular/cli/lib/config/schema.json',
'17': './node_modules/@angular/cli/lib/config/schema.json',
'18': './node_modules/@angular/cli/lib/config/schema.json',
'19': './node_modules/@angular/cli/lib/config/schema.json',
'20': './node_modules/@angular/cli/lib/config/schema.json'
};
if (schemaMap[this.version]) {
angularJson.$schema = schemaMap[this.version];
}
// Update version field
angularJson.version = 1;
// Handle browserTarget to buildTarget migration (Angular 15+)
const versionNum = parseInt(this.version);
if (versionNum >= 15) {
this.migrateBrowserTargetToBuildTarget(angularJson);
}
}
/**
* Migrate browserTarget to buildTarget in angular.json (Angular 15+)
*/
migrateBrowserTargetToBuildTarget(angularJson) {
for (const projectName in angularJson.projects) {
const project = angularJson.projects[projectName];
// Update serve configuration
if (project.architect?.serve?.configurations) {
for (const config of Object.values(project.architect.serve.configurations)) {
const serveConfig = config;
if (serveConfig.browserTarget && !serveConfig.buildTarget) {
serveConfig.buildTarget = serveConfig.browserTarget;
delete serveConfig.browserTarget;
}
}
}
// Update serve options
if (project.architect?.serve?.options) {
if (project.architect.serve.options.browserTarget && !project.architect.serve.options.buildTarget) {
project.architect.serve.options.buildTarget = project.architect.serve.options.browserTarget;
delete project.architect.serve.options.browserTarget;
}
}
// Update extract-i18n configuration
if (project.architect?.['extract-i18n']?.options) {
const extractConfig = project.architect['extract-i18n'].options;
if (extractConfig.browserTarget && !extractConfig.buildTarget) {
extractConfig.buildTarget = extractConfig.browserTarget;
delete extractConfig.browserTarget;
}
}
// Update test configuration
if (project.architect?.test?.options) {
const testConfig = project.architect.test.options;
if (testConfig.browserTarget && !testConfig.buildTarget) {
testConfig.buildTarget = testConfig.browserTarget;
delete testConfig.browserTarget;
}
}
}
}
/**
* Update tsconfig.json
*/
async updateTsConfig(projectPath) {
const tsconfigPath = path.join(projectPath, 'tsconfig.json');
if (await fs.pathExists(tsconfigPath)) {
const tsconfig = await fs.readJson(tsconfigPath);
// Update TypeScript configuration for this Angular version
this.updateTypeScriptConfig(tsconfig);
await fs.writeJson(tsconfigPath, tsconfig, { spaces: 2 });
}
}
/**
* Update TypeScript configuration
*/
updateTypeScriptConfig(tsconfig) {
// Set proper compiler options based on Angular version
if (!tsconfig.compilerOptions) {
tsconfig.compilerOptions = {};
}
// Handle strict mode - set to false for safer migration
tsconfig.compilerOptions.strict = false;
// Set individual strict flags to false for migration
tsconfig.compilerOptions.strictNullChecks = false;
tsconfig.compilerOptions.strictPropertyInitialization = false;
tsconfig.compilerOptions.strictBindCallApply = false;
tsconfig.compilerOptions.strictFunctionTypes = false;
tsconfig.compilerOptions.noImplicitAny = false;
tsconfig.compilerOptions.noImplicitThis = false;
tsconfig.compilerOptions.alwaysStrict = false;
// Set target and module based on Angular version
const versionNum = parseInt(this.version);
if (versionNum >= 16) {
tsconfig.compilerOptions.target = 'ES2022';
tsconfig.compilerOptions.module = 'ES2022';
tsconfig.compilerOptions.lib = ['ES2022', 'dom'];
}
else if (versionNum >= 15) {
tsconfig.compilerOptions.target = 'ES2022';
tsconfig.compilerOptions.module = 'ES2022';
tsconfig.compilerOptions.lib = ['ES2022', 'dom'];
}
else if (versionNum >= 14) {
tsconfig.compilerOptions.target = 'ES2020';
tsconfig.compilerOptions.module = 'ES2020';
tsconfig.compilerOptions.lib = ['ES2020', 'dom'];
}
else {
tsconfig.compilerOptions.target = 'ES2017';
tsconfig.compilerOptions.module = 'ES2020';
tsconfig.compilerOptions.lib = ['ES2018', 'dom'];
}
// Enable experimental decorators for older versions
if (versionNum < 16) {
tsconfig.compilerOptions.experimentalDecorators = true;
}
// Set module resolution
tsconfig.compilerOptions.moduleResolution = 'node';
// Enable source maps for development
tsconfig.compilerOptions.sourceMap = true;
// Set output directory
tsconfig.compilerOptions.outDir = './dist/out-tsc';
// Enable declaration files
tsconfig.compilerOptions.declaration = false;
// Set base URL
tsconfig.compilerOptions.baseUrl = './';
// Enable incremental compilation
tsconfig.compilerOptions.incremental = true;
// Import helpers from tslib
tsconfig.compilerOptions.importHelpers = true;
// Skip lib check for faster builds
tsconfig.compilerOptions.skipLibCheck = true;
// Enable ES module interop
tsconfig.compilerOptions.esModuleInterop = true;
}
/**
* Get required TypeScript version for this Angular version
*/
getRequiredTypeScriptVersion() {
const tsVersionMap = {
'12': '~4.3.0',
'13': '~4.4.0',
'14': '~4.7.0',
'15': '~4.9.0',
'16': '~5.1.0',
'17': '~5.2.0',
'18': '~5.4.0',
'19': '~5.6.0',
'20': '>=5.8.0 <5.9.0'
};
return tsVersionMap[this.version] || '~5.8.0';
}
/**
* Update optional configuration files
*/
async updateOptionalConfigs(projectPath) {
// Update browserslist if it exists
await this.updateBrowsersList(projectPath);
// Update karma.conf.js if it exists
await this.updateKarmaConfig(projectPath);
}
/**
* Update browserslist configuration
*/
async updateBrowsersList(projectPath) {
const browserslistPath = path.join(projectPath, '.browserslistrc');
if (await fs.pathExists(browserslistPath)) {
// Update browser support configuration
// This would contain version-specific browser requirements
}
}
/**
* Update Karma configuration
*/
async updateKarmaConfig(projectPath) {
const karmaConfigPath = path.join(projectPath, 'karma.conf.js');
if (await fs.pathExists(karmaConfigPath)) {
// Update Karma configuration for new Angular version
// This would contain version-specific Karma updates
}
}
/**
* Run Angular update schematics and official migrations
*/
async runAngularUpdateSchematics(projectPath) {
try {
this.progressReporter?.updateMessage('Running Angular update schematics...');
// Run ng update for Angular core
(0, child_process_1.execSync)(`npx ng update @angular/core@${this.version} --migrate-only --allow-dirty`, {
cwd: projectPath,
stdio: 'inherit'
});
// Run ng update for Angular CLI
(0, child_process_1.execSync)(`npx ng update @angular/cli@${this.version} --migrate-only --allow-dirty`, {
cwd: projectPath,
stdio: 'inherit'
});
// Run version-specific official migrations
await this.runVersionSpecificMigrations(projectPath);
this.progressReporter?.success('✓ Angular update schematics completed');
}
catch (error) {
this.progressReporter?.warn('Angular schematics migration completed with warnings');
}
}
/**
* Ensure Angular project is ready for migrations
*/
async ensureAngularProjectReady(projectPath) {
// Check if angular.json exists
const angularJsonPath = path.join(projectPath, 'angular.json');
if (!await fs.pathExists(angularJsonPath)) {
throw new Error('angular.json not found. This does not appear to be an Angular project.');
}
// Check if package.json exists
const packageJsonPath = path.join(projectPath, 'package.json');
if (!await fs.pathExists(packageJsonPath)) {
throw new Error('package.json not found. Invalid Angular project structure.');
}
// Ensure node_modules exists
const nodeModulesPath = path.join(projectPath, 'node_modules');
if (!await fs.pathExists(nodeModulesPath)) {
this.progressReporter?.warn('node_modules not found. Running npm install...');
try {
await this.runCommand('npm install', projectPath);
this.progressReporter?.success('Dependencies installed successfully');
}
catch (error) {
throw new Error('Failed to install dependencies. Please run npm install manually.');
}
}
// Check if Angular CLI is available globally or locally
try {
await this.runCommand('npx ng version', projectPath);
}
catch (error) {
throw new Error('Angular CLI not available. Please install Angular CLI: npm install -g @angular/cli');
}
}
/**
* Run version-specific official Angular migrations
*/
async runVersionSpecificMigrations(projectPath) {
// Ensure the project is ready for migrations
await this.ensureAngularProjectReady(projectPath);
const migrations = this.getAvailableMigrations();
if (migrations.length === 0) {
this.progressReporter?.info('No version-specific migrations available for this Angular version');
return;
}
this.progressReporter?.info(`Running ${migrations.length} migration(s) for Angular ${this.version}...`);
for (const migration of migrations) {
try {
this.progressReporter?.updateMessage(`Running ${migration.name} migration...`);
this.progressReporter?.info(`Command: ${migration.command}`);
const output = await this.runCommand(migration.command, projectPath);
this.progressReporter?.success(`✓ ${migration.name} migration completed successfully`);
// Log migration output for debugging
if (output && output.trim()) {
this.progressReporter?.info(`Migration output: ${output.trim()}`);
}
}
catch (error) {
const errorMessage = error instanceof Error ? error.message : String(error);
if (migration.optional) {
this.progressReporter?.warn(`⚠ ${migration.name} migration skipped: ${errorMessage}`);
}
else {
this.progressReporter?.error(`✗ ${migration.name} migration failed: ${errorMessage}`);
// Don't throw for required migrations - continue with other migrations
}
}
}
this.progressReporter?.success(`Completed all migrations for Angular ${this.version}`);
}
/**
* Get available migrations for this Angular version
* Override in specific version handlers to provide version-specific migrations
*/
getAvailableMigrations() {
const version = parseInt(this.version);
const migrations = [];
// Core Angular Update (always run first)
if (version >= 12) {
migrations.push({
name: 'Angular Framework Update',
command: `npx ng update @angular/core@${version} @angular/cli@${version} --allow-dirty --force`,
description: 'Update Angular framework and apply automatic migrations',
optional: false
});
}
// Official Angular Migration Schematics - Integrated Seamlessly
// 1. Standalone Components Migration (Angular 14+)
if (version >= 14) {
migrations.push({
name: 'Standalone Components Migration',
command: 'npx ng generate @angular/core:standalone-migration --mode=convert-to-standalone --allow-dirty',
description: 'Convert components to standalone, removing NgModule dependencies',
optional: false // Make it automatic for better UX
});
}
// 2. inject() Function Migration (Angular 14+)
if (version >= 14) {
migrations.push({
name: 'inject() Function Migration',
command: 'npx ng generate @angular/core:inject-function --allow-dirty',
description: 'Convert constructor injection to inject() function',
optional: false
});
}
// 3. Control Flow Migration (Angular 17+)
if (version >= 17) {
migrations.push({
name: 'Control Flow Migration',
command: 'npx ng generate @angular/core:control-flow-migration --allow-dirty',
description: 'Convert *ngIf, *ngFor, *ngSwitch to @if, @for, @switch',
optional: false // Make it automatic for modern syntax
});
}
// 4. Signal Inputs Migration (Angular 17.1+)
if (version >= 17) {
migrations.push({
name: 'Signal Inputs Migration',
command: 'npx ng generate @angular/core:signal-inputs --allow-dirty',
description: 'Convert @Input fields to signal inputs',
optional: false
});
}
// 5. Signal Outputs Migration (Angular 17.3+)
if (version >= 17) {
migrations.push({
name: 'Signal Outputs Migration',
command: 'npx ng generate @angular/core:outputs --allow-dirty',
description: 'Convert @Output custom events to output function',
optional: false
});
}
// 6. Signal Queries Migration (Angular 17.3+)
if (version >= 17) {
migrations.push({
name: 'Signal Queries Migration',
command: 'npx ng generate @angular/core:signal-queries --allow-dirty',
description: 'Convert ViewChild/ContentChild to signal queries',
optional: false
});
}
// 7. Route Lazy Loading Migration (Angular 14+)
if (version >= 14) {
migrations.push({
name: 'Route Lazy Loading Migration',
command: 'npx ng generate @angular/core:route-lazy-loading --allow-dirty',
description: 'Convert eager routes to lazy-loaded routes for smaller bundles',
optional: true // Keep optional as it might affect routing structure
});
}
// 8. Self-closing Tags Migration (Angular 16+)
if (version >= 16) {
migrations.push({
name: 'Self-closing Tags Migration',
command: 'npx ng generate @angular/core:self-closing-tags --allow-dirty',
description: 'Convert templates to use self-closing tags',
optional: false
});
}
// 9. Cleanup Unused Imports (All versions)
migrations.push({
name: 'Cleanup Unused Imports',
command: 'npx ng generate @angular/core:cleanup-unused-imports --allow-dirty',
description: 'Remove unused imports for cleaner code',
optional: false
});
return migrations;
}
/**
* Run specific migration by name
*/
async runSpecificMigration(projectPath, migrationName, interactive = false) {
const migrations = this.getAvailableMigrations();
const migration = migrations.find(m => m.name === migrationName);
if (!migration) {
throw new Error(`Migration '${migrationName}' not found for Angular ${this.version}`);
}
try {
this.progressReporter?.updateMessage(`Running ${migration.name} migration...`);
let command = migration.command;
if (!interactive) {
command += ' --interactive=false --defaults';
}
await this.runCommand(command, projectPath);
this.progressReporter?.success(`✓ ${migration.name} migration completed`);
}
catch (error) {
this.progressReporter?.warn(`${migration.name} migration failed: ${error instanceof Error ? error.message : String(error)}`);
throw error;
}
}
/**
* Ensure all dependencies are properly installed
*/
async ensureDependenciesInstalled(projectPath) {
try {
// Check if node_modules exists and is not empty
const nodeModulesPath = path.join(projectPath, 'node_modules');
const nodeModulesExists = await fs.pathExists(nodeModulesPath);
if (!nodeModulesExists) {
this.progressReporter?.warn('node_modules not found. Running npm install...');
const success = await this.dependencyInstaller.runNpmInstall();
if (!success) {
throw new Error('Failed to install dependencies. Please run npm install manually.');
}
}
else {
// Verify key Angular packages are installed
const angularCore = path.join(nodeModulesPath, '@angular', 'core');
if (!await fs.pathExists(angularCore)) {
this.progressReporter?.warn('Angular core packages missing. Running npm install...');
const success = await this.dependencyInstaller.runNpmInstall();
if (!success) {
this.progressReporter?.warn('npm install failed, but continuing with upgrade...');
}
}
}
this.progressReporter?.success('✓ Dependencies verified');
}
catch (error) {
this.progressReporter?.warn(`Dependency verification failed: ${error instanceof Error ? error.message : String(error)}`);
// Don't fail the entire upgrade for dependency issues
}
}
/**
* Install dependencies (legacy method - kept for compatibility)
*/
async installDependencies(projectPath) {
try {
console.log('Installing dependencies...');
(0, child_process_1.execSync)('npm install', {
cwd: projectPath,
stdio: 'inherit'
});
}
catch (error) {
throw new Error('Failed to install dependencies');
}
}
/**
* Check version compatibility
*/
isVersionCompatible(currentVersion, requiredVersion) {
// Simple version comparison - in production this would use semver
const current = currentVersion.replace(/[^\d.]/g, '');
const required = requiredVersion.replace(/[^\d.]/g, '');
const currentParts = current.split('.').map(Number);
const requiredParts = required.split('.').map(Number);
for (let i = 0; i < Math.max(currentParts.length, requiredParts.length); i++) {
const currentPart = currentParts[i] || 0;
const requiredPart = requiredParts[i] || 0;
if (currentPart > requiredPart)
return true;
if (currentPart < requiredPart)
return false;
}
return true;
}
/**
* Run command safely
*/
async runCommand(command, projectPath) {
try {
return (0, child_process_1.execSync)(command, {
cwd: projectPath,
encoding: 'utf-8',
stdio: 'pipe'
});
}
catch (error) {
throw new Error(`Command failed: ${command}\n${error.stdout || error.stderr || error.message}`);
}
}
/**
* Backup file before modification
*/
async backupFile(filePath) {
if (await fs.pathExists(filePath)) {
await fs.copy(filePath, `${filePath}.backup`);
}
}
/**
* Update component files using Advanced Content Preserver for intelligent merging
*/
async updateComponentFiles(projectPath, transformations) {
const componentsPath = path.join(projectPath, 'src', 'app');
if (await fs.pathExists(componentsPath)) {
// Find all component files
const componentFiles = await this.findComponentFiles(componentsPath);
let totalConflicts = 0;
let filesWithConflicts = [];
for (const file of componentFiles) {
try {
// Use advanced content preserver for intelligent merging
const result = await this.contentPreserver.preserveComponentFile(file, transformations, {
preserveComments: true,
preserveCustomMethods: true,
preserveUserImports: true,
preserveCustomProperties: true,
preserveCustomLogic: true,
createDetailedBackup: true,
mergeConflictResolution: 'user' // Prioritize user code
});
if (result.conflicts.length > 0) {
totalConflicts += result.conflicts.length;
filesWithConflicts.push(path.basename(file));
this.progressReporter?.warn(`${result.conflicts.length} conflicts detected in ${path.basename(file)}`);
}
if (result.warnings.length > 0) {
result.warnings.forEach(warning => this.progressReporter?.warn(warning));
}
}
catch (error) {
// Fallback to legacy FileContentPreserver
this.progressReporter?.warn(`Advanced preservation failed for ${path.basename(file)}, using fallback method`);
await FileContentPreserver_1.FileContentPreserver.updateComponentFile(file, transformations);
}
}
if (componentFiles.length > 0) {
this.progressReporter?.success(`Intelligently preserved ${componentFiles.length} component files`);
if (totalConflicts > 0) {
this.progressReporter?.warn(`${totalConflicts} merge conflicts detected in: ${filesWithConflicts.join(', ')}`);
this.progressReporter?.info('User customizations have been preserved. Review .conflicts files for manual resolution if needed.');
}
else {
this.progressReporter?.success('✓ All user customizations preserved without conflicts');
}
}
}
}
/**
* Update template files using Advanced Content Preserver for intelligent merging
*/
async updateTemplateFiles(projectPath) {
const targetVersion = parseInt(this.version);
const templatesPath = path.join(projectPath, 'src', 'app');
if (await fs.pathExists(templatesPath)) {
// Find all template files
const templateFiles = await this.findTemplateFiles(templatesPath);
let totalConflicts = 0;
let filesWithConflicts = [];
// Define template transformations based on Angular version
const templateTransforms = this.getTemplateTransformsForVersion(targetVersion);
for (const file of templateFiles) {
try {
// Use advanced content preserver for intelligent template merging
const result = await this.contentPreserver.preserveTemplateFile(file, templateTransforms, {
preserveComments: true,
preserveCustomMethods: true,
preserveUserImports: true,
preserveCustomProperties: true,
preserveCustomLogic: true,
createDetailedBackup: true,
mergeConflictResolution: 'user' // Prioritize user template code
});
if (result.conflicts.length > 0) {
totalConflicts += result.conflicts.length;
filesWithConflicts.push(path.basename(file));
this.progressReporter?.warn(`${result.conflicts.length} template conflicts in ${path.basename(file)}`);
}
}
catch (error) {
// Fallback to legacy FileContentPreserver
this.progressReporter?.warn(`Advanced template preservation failed for ${path.basename(file)}, using fallback`);
await FileContentPreserver_1.FileContentPreserver.updateTemplateFile(file, targetVersion);
}
}
if (templateFiles.length > 0) {
this.progressReporter?.success(`Intelligently preserved ${templateFiles.length} template files`);
if (totalConflicts > 0) {
this.progressReporter?.warn(`${totalConflicts} template conflicts detected in: ${filesWithConflicts.join(', ')}`);
this.progressReporter?.info('User template customizations preserved. Complex logic maintained as-is.');
}
else {
this.progressReporter?.success('✓ All template customizations preserved without conflicts');
}
}
}
}
/**
* Get template transformations for specific Angular version
*/
getTemplateTransformsForVersion(targetVersion) {
const transforms = [];
// Angular 17+ control flow migration
if (targetVersion >= 17) {
transforms.push({
type: 'template',
templateType: 'control-flow',
description: 'Migrate *ngIf, *ngFor to @if, @for syntax',
preserveComplexLogic: true
});
}
// Angular 16+ self-closing tags
if (targetVersion >= 16) {
transforms.push({
type: 'template',
templateType: 'directive-update',
description: 'Update to self-closing tags',
preserveUserDirectives: true
});
}
return transforms;
}
/**
* Find all component files in a directory
*/
async findComponentFiles(dir) {
const files = [];
const entries = await fs.readdir(dir, { withFileTypes: true });
for (const entry of entries) {
const fullPath = path.join(dir, entry.name);
if (entry.isDirectory()) {
files.push(...await this.findComponentFiles(fullPath));
}
else if (entry.name.endsWith('.component.ts')) {
files.push(fullPath);
}
}
return files;
}
/**
* Find all template files in a directory
*/
async findTemplateFiles(dir) {
const files = [];
const entries = await fs.readdir(dir, { withFileTypes: true });
for (const entry of entries) {
const fullPath = path.join(dir, entry.name);
if (entry.isDirectory()) {
files.push(...await this.findTemplateFiles(fullPath));
}
else if (entry.name.endsWith('.component.html')) {
files.push(fullPath);
}
}
return files;
}
/**
* Create version-specific breaking change
*/
createBreakingChange(id, type, severity, description, impact, migrationInstructions) {
return {
id,
version: this.version,
type,
severity,
description,
impact,
migration: {
type: migrationInstructions ? 'manual' : 'automatic',
instructions: migrationInstructions
}
};
}
/**
* Track dependency updates by comparing package.json before and after
*/
trackDependencyUpdates(beforePackageJson, afterPackageJson, filterPrefix) {
const before = {
...beforePackageJson.dependencies,
...beforePackageJson.devDependencies
};
const after = {
...afterPackageJson.dependencies,
...afterPackageJson.devDependencies
};
for (const [name, newVersion] of Object.entries(after)) {
if (filterPrefix && !name.startsWith(filterPrefix))
continue;
const oldVersion = before[name];
if (oldVersion && oldVersion !== newVersion) {
const dependencyChange = {
name,
previousVersion: oldVersion,
newVersion: newVersion,
type: afterPackageJson.dependencies?.[name] ? 'production' : 'development',
breaking: this.isBreakingDependencyChange(name, oldVersion, newVersion)
};
this.reportGenerator.trackDependencyChange(dependencyChange);
}
}
}
/**
* Check if a dependency version change is potentially breaking
*/
isBreakingDependencyChange(name, oldVersion, newVersion) {
// Angular packages: major version changes are breaking
if (name.startsWith('@angular/')) {