1 | /**
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2 | * @license
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3 | * Copyright (c) 2019 The Polymer Project Authors. All rights reserved.
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4 | * This code may only be used under the BSD style license found at
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5 | * http://polymer.github.io/LICENSE.txt The complete set of authors may be found
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6 | * at http://polymer.github.io/AUTHORS.txt The complete set of contributors may
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7 | * be found at http://polymer.github.io/CONTRIBUTORS.txt Code distributed by
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8 | * Google as part of the polymer project is also subject to an additional IP
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9 | * rights grant found at http://polymer.github.io/PATENTS.txt
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10 | */
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11 | /// <reference types="node" />
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12 | import { ExecFileOptions } from 'child_process';
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13 | /** Return whether the given string is a valid HTTP URL. */
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14 | export declare function isHttpUrl(str: string): boolean;
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15 | export declare function fileKind(path: string): Promise<'file' | 'dir' | undefined>;
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16 | export declare function runNpm(args: string[], options?: ExecFileOptions): Promise<string | Buffer>;
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17 | /**
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18 | * Promisified version of setTimeout.
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19 | */
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20 | export declare const wait: (ms: number) => Promise<unknown>;
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21 | /**
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22 | * A function that should never be called. But if it somehow is anyway, throw an
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23 | * exception with the given message.
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24 | */
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25 | export declare function throwUnreachable(_unreachable: never, message: string): void;
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