63 lines
2.2 KiB
TypeScript
63 lines
2.2 KiB
TypeScript
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/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {Rule, SchematicsException, Tree} from '@angular-devkit/schematics';
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import {relative} from 'path';
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import * as ts from 'typescript';
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import {getProjectTsConfigPaths} from '../../utils/project_tsconfig_paths';
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import {canMigrateFile, createMigrationProgram} from '../../utils/typescript/compiler_host';
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import {findFragmentAccesses, migrateActivatedRouteSnapshotFragment} from './util';
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/**
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* Migration that marks accesses of `ActivatedRouteSnapshot.fragment` as non-null.
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*/
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export default function(): Rule {
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return (tree: Tree) => {
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const {buildPaths, testPaths} = getProjectTsConfigPaths(tree);
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const basePath = process.cwd();
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const allPaths = [...buildPaths, ...testPaths];
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if (!allPaths.length) {
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throw new SchematicsException(
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'Could not find any tsconfig file. Cannot migrate ' +
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'`ActivatedRouteSnapshot.fragment` accesses.');
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}
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for (const tsconfigPath of allPaths) {
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runActivatedRouteSnapshotFragmentMigration(tree, tsconfigPath, basePath);
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}
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};
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}
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function runActivatedRouteSnapshotFragmentMigration(
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tree: Tree, tsconfigPath: string, basePath: string) {
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const {program} = createMigrationProgram(tree, tsconfigPath, basePath);
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const typeChecker = program.getTypeChecker();
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const sourceFiles =
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program.getSourceFiles().filter(sourceFile => canMigrateFile(basePath, sourceFile, program));
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const printer = ts.createPrinter();
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sourceFiles.forEach(sourceFile => {
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const nodesToMigrate = findFragmentAccesses(typeChecker, sourceFile);
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if (nodesToMigrate.size > 0) {
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const update = tree.beginUpdate(relative(basePath, sourceFile.fileName));
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nodesToMigrate.forEach(node => {
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update.remove(node.getStart(), node.getWidth());
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update.insertRight(
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node.getStart(),
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printer.printNode(
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ts.EmitHint.Unspecified, migrateActivatedRouteSnapshotFragment(node), sourceFile));
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});
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tree.commitUpdate(update);
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}
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});
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}
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