*/

import { strings } from '@angular-devkit/core';

import { Collection } from '@angular-devkit/schematics';

import {

FileSystemCollectionDescription,

FileSystemSchematicDescription,

} from '@angular-devkit/schematics/tools';

import { Argv } from 'yargs';

import {

CommandModuleError,

const {

'x-deprecated': xDeprecated,

description = schematicDescription,

aliases = schematicAliases,

hidden = schematicHidden,

} = schemaJson;

const options = await this.getSchematicOptions(collection, schematicName, workflow);

// When 'describe' is set to false, it results in a hidden command.

describe: hidden === true ? false : typeof description === 'string' ? description : '',

deprecated: xDeprecated === true || typeof xDeprecated === 'string' ? xDeprecated : false,

aliases: Array.isArray(aliases)

? await this.generateCommandAliasesStrings(collectionName, aliases as string[])

aliases: Array.isArray(schematicAliases)

? await this.generateCommandAliasesStrings(collectionName, schematicAliases)

: undefined,

builder: (localYargs) => this.addSchemaOptionsToCommand(localYargs, options).strict(),

handler: (options) =>

// If a schematic with this same name is already registered skip.

if (!seenNames.has(schematicName)) {

seenNames.add(schematicName);

const { aliases } = collection.description.schematics[schematicName];

const schematicAliases = aliases && new Set(aliases);

yield { schematicName, schematicAliases, collectionName };

yield {

schematicName,

collectionName,

schematicAliases: this.listSchematicAliases(collection, schematicName),

};

}

}

}

}

private listSchematicAliases(

collection: Collection<FileSystemCollectionDescription, FileSystemSchematicDescription>,

schematicName: string,

): Set<string> | undefined {

const description = collection.description.schematics[schematicName];

if (description) {

return description.aliases && new Set(description.aliases);

}

// Extended collections

if (collection.baseDescriptions) {

for (const base of collection.baseDescriptions) {

const description = base.schematics[schematicName];

if (description) {

return description.aliases && new Set(description.aliases);

}

}

}

return undefined;

}

/**