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util.ts
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69 lines (55 loc) · 2.07 KB
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/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
export interface IDisposable {
dispose(): void;
}
export function toDisposable(dispose: () => void): IDisposable {
return { dispose };
}
export function done<T>(promise: Promise<T>): Promise<void> {
return promise.then<void>(() => undefined);
}
export namespace Versions {
declare type VersionComparisonResult = -1 | 0 | 1;
export interface Version {
major: number;
minor: number;
patch: number;
pre?: string;
}
export function compare(v1: string | Version, v2: string | Version): VersionComparisonResult {
if (typeof v1 === 'string') {
v1 = fromString(v1);
}
if (typeof v2 === 'string') {
v2 = fromString(v2);
}
if (v1.major > v2.major) { return 1; }
if (v1.major < v2.major) { return -1; }
if (v1.minor > v2.minor) { return 1; }
if (v1.minor < v2.minor) { return -1; }
if (v1.patch > v2.patch) { return 1; }
if (v1.patch < v2.patch) { return -1; }
if (v1.pre === undefined && v2.pre !== undefined) { return 1; }
if (v1.pre !== undefined && v2.pre === undefined) { return -1; }
if (v1.pre !== undefined && v2.pre !== undefined) {
return v1.pre.localeCompare(v2.pre) as VersionComparisonResult;
}
return 0;
}
export function from(major: string | number, minor: string | number, patch?: string | number, pre?: string): Version {
return {
major: typeof major === 'string' ? parseInt(major, 10) : major,
minor: typeof minor === 'string' ? parseInt(minor, 10) : minor,
patch: patch === undefined || patch === null ? 0 : typeof patch === 'string' ? parseInt(patch, 10) : patch,
pre: pre,
};
}
export function fromString(version: string): Version {
const [ver, pre] = version.split('-');
const [major, minor, patch] = ver.split('.');
return from(major, minor, patch, pre);
}
}