angular-cn/packages/core/schematics/migrations/dynamic-queries/index.ts

76 lines
2.7 KiB
TypeScript

/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {Rule, SchematicContext, SchematicsException, Tree} from '@angular-devkit/schematics';
import {dirname, relative} from 'path';
import * as ts from 'typescript';
import {getProjectTsConfigPaths} from '../../utils/project_tsconfig_paths';
import {createMigrationCompilerHost} from '../../utils/typescript/compiler_host';
import {parseTsconfigFile} from '../../utils/typescript/parse_tsconfig';
import {identifyDynamicQueryNodes, removeOptionsParameter, removeStaticFlag} from './util';
/**
* Runs the dynamic queries migration for all TypeScript projects in the current CLI workspace.
*/
export default function(): Rule {
return (tree: Tree, ctx: SchematicContext) => {
const {buildPaths, testPaths} = getProjectTsConfigPaths(tree);
const basePath = process.cwd();
const allPaths = [...buildPaths, ...testPaths];
ctx.logger.info('------ Dynamic queries migration ------');
if (!allPaths.length) {
throw new SchematicsException(
'Could not find any tsconfig file. Cannot migrate dynamic queries.');
}
for (const tsconfigPath of allPaths) {
runDynamicQueryMigration(tree, tsconfigPath, basePath);
}
};
}
function runDynamicQueryMigration(tree: Tree, tsconfigPath: string, basePath: string) {
const parsed = parseTsconfigFile(tsconfigPath, dirname(tsconfigPath));
const host = createMigrationCompilerHost(tree, parsed.options, basePath);
const program = ts.createProgram(parsed.fileNames, parsed.options, host);
const typeChecker = program.getTypeChecker();
const sourceFiles = program.getSourceFiles().filter(
f => !f.isDeclarationFile && !program.isSourceFileFromExternalLibrary(f));
const printer = ts.createPrinter();
sourceFiles.forEach(sourceFile => {
const result = identifyDynamicQueryNodes(typeChecker, sourceFile);
if (result.removeProperty.length || result.removeParameter.length) {
const update = tree.beginUpdate(relative(basePath, sourceFile.fileName));
result.removeProperty.forEach(node => {
update.remove(node.getStart(), node.getWidth());
update.insertRight(
node.getStart(),
printer.printNode(ts.EmitHint.Unspecified, removeStaticFlag(node), sourceFile));
});
result.removeParameter.forEach(node => {
update.remove(node.getStart(), node.getWidth());
update.insertRight(
node.getStart(),
printer.printNode(ts.EmitHint.Unspecified, removeOptionsParameter(node), sourceFile));
});
tree.commitUpdate(update);
}
});
}