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remove-generator.ts
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remove-generator.ts
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import * as fs from "fs";
import * as path from "path";
import Generator = require("yeoman-generator");
import PROP_TYPES from "@webpack-cli/utils/prop-types";
import { List } from "@webpack-cli/webpack-scaffold";
import { IWebpackOptions } from "./types";
/**
*
* Generator for removing properties
* @class RemoveGenerator
* @extends Generator
* @returns {Void} After execution, transforms are triggered
*
*/
export default class RemoveGenerator extends Generator {
private configuration: {
config: {
configName?: string,
topScope?: string[],
webpackOptions?: IWebpackOptions,
},
};
private webpackOptions: IWebpackOptions | string;
constructor(args, opts) {
super(args, opts);
this.configuration = {
config: {
webpackOptions: {},
},
};
let configPath: string = path.resolve(process.cwd(), "webpack.config.js");
const webpackConfigExists: boolean = fs.existsSync(configPath);
if (!webpackConfigExists) {
configPath = null;
// end the generator stating webpack config not found or to specify the config
}
this.webpackOptions = require(configPath);
}
public getPropTypes(): string[] {
return Object.keys(this.webpackOptions);
}
public getModuleLoadersNames(): string[] {
if (typeof this.webpackOptions === "object") {
if (this.webpackOptions.module && this.webpackOptions.module.rules) {
return this.webpackOptions.module.rules.map((rule: {
loader: string;
}) => rule ? rule.loader : null);
}
}
}
public prompting() {
const done: (_?: void) => void | boolean = this.async();
let propValue: object | string | boolean;
return this.prompt([
List(
"propType",
"Which property do you want to remove?",
Array.from(this.getPropTypes()),
),
])
.then(({ propType }: { propType: string }): Promise<{}> => {
if (!PROP_TYPES.has(propType)) {
console.error("Invalid webpack config prop");
return;
}
propValue = this.webpackOptions[propType];
if (typeof propValue === "object") {
if (Array.isArray(propValue)) {
return this.prompt([
List(
"keyType",
`Which key do you want to remove from ${propType}?`,
Array.from(propValue),
),
]).then(({ keyType }: { keyType: string }): void => {
this.configuration.config.webpackOptions[propType] = [ keyType ];
});
} else {
return this.prompt([
List(
"keyType",
`Which key do you want to remove from ${propType}?`,
Array.from(Object.keys(propValue)),
),
])
.then(({ keyType }: { keyType: string }): Promise<{}> => {
if (propType === "module" && keyType === "rules") {
return this.prompt([
List(
"rule",
"Which loader do you want to remove?",
Array.from(this.getModuleLoadersNames()),
),
])
.then(({ rule }: { rule: string }): void => {
if (typeof this.webpackOptions === "object") {
const loaderIndex: number = this.getModuleLoadersNames().indexOf(rule);
const loader: object = this.webpackOptions.module.rules[loaderIndex];
this.configuration.config.webpackOptions.module = {
rules: [ loader ],
};
}
});
} else {
// remove the complete prop object if there is only one key
if (Object.keys(this.webpackOptions[propType]).length <= 1) {
this.configuration.config.webpackOptions[propType] = null;
} else {
this.configuration.config.webpackOptions[propType] = {
[keyType]: null,
};
}
}
});
}
} else {
this.configuration.config.webpackOptions[propType] = null;
}
})
.then((_: void): void => {
done();
});
}
public writing() {
this.config.set("configuration", this.configuration);
}
}