clydin 537bf5e2fa fix(@schematics/angular): reduce package installs for 8.0 migrations (#14324)
This provides a ~30% performance improvement for a hello world project.
2019-05-07 12:42:46 -06:00

90 lines
2.8 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 { JsonParseMode, parseJsonAst } from '@angular-devkit/core';
import {
Rule,
Tree,
} from '@angular-devkit/schematics';
import {
NodeDependency,
NodeDependencyType,
addPackageJsonDependency,
} from '../../utility/dependencies';
import { findPropertyInAstObject } from '../../utility/json-utils';
const ruleMapping: {[key: string]: string} = {
'contextual-life-cycle': 'contextual-lifecycle',
'no-conflicting-life-cycle-hooks': 'no-conflicting-lifecycle',
'no-life-cycle-call': 'no-lifecycle-call',
'use-life-cycle-interface': 'use-lifecycle-interface',
'decorator-not-allowed': 'contextual-decorator',
'enforce-component-selector': 'use-component-selector',
'no-output-named-after-standard-event': 'no-output-native',
'use-host-property-decorator': 'no-host-metadata-property',
'use-input-property-decorator': 'no-inputs-metadata-property',
'use-output-property-decorator': 'no-outputs-metadata-property',
'no-queries-parameter': 'no-queries-metadata-property',
'pipe-impure': 'no-pipe-impure',
'use-view-encapsulation': 'use-component-view-encapsulation',
i18n: 'template-i18n',
'banana-in-box': 'template-banana-in-box',
'no-template-call-expression': 'template-no-call-expression',
'templates-no-negated-async': 'template-no-negated-async',
'trackBy-function': 'template-use-track-by-function',
'no-attribute-parameter-decorator': 'no-attribute-decorator',
'max-inline-declarations': 'component-max-inline-declarations',
};
export const updateTsLintConfig = (): Rule => {
return (host: Tree) => {
const tsLintPath = '/tslint.json';
const buffer = host.read(tsLintPath);
if (!buffer) {
return host;
}
const tsCfgAst = parseJsonAst(buffer.toString(), JsonParseMode.Loose);
if (tsCfgAst.kind != 'object') {
return host;
}
const rulesNode = findPropertyInAstObject(tsCfgAst, 'rules');
if (!rulesNode || rulesNode.kind != 'object') {
return host;
}
const recorder = host.beginUpdate(tsLintPath);
rulesNode.properties.forEach(prop => {
const mapping = ruleMapping[prop.key.value];
if (mapping) {
recorder.remove(prop.key.start.offset + 1, prop.key.value.length);
recorder.insertLeft(prop.key.start.offset + 1, mapping);
}
});
host.commitUpdate(recorder);
return host;
};
};
export const updatePackageJson = () => {
return (host: Tree) => {
const dependency: NodeDependency = {
type: NodeDependencyType.Dev,
name: 'codelyzer',
version: '^5.0.1',
overwrite: true,
};
addPackageJsonDependency(host, dependency);
};
};