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81 lines
2.6 KiB
TypeScript
81 lines
2.6 KiB
TypeScript
/**
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* Copyright 2017 Google Inc. All rights reserved.
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* Modifications copyright (c) Microsoft Corporation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import fs from 'fs';
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let didFailToReadOSRelease = false;
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let osRelease: {
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id: string,
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version: string,
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} | undefined;
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export async function getLinuxDistributionInfo(): Promise<{ id: string, version: string } | undefined> {
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if (process.platform !== 'linux')
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return undefined;
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if (!osRelease && !didFailToReadOSRelease) {
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try {
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// List of /etc/os-release values for different distributions could be
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// found here: https://gist.github.com/aslushnikov/8ceddb8288e4cf9db3039c02e0f4fb75
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const osReleaseText = await fs.promises.readFile('/etc/os-release', 'utf8');
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const fields = parseOSReleaseText(osReleaseText);
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osRelease = {
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id: fields.get('id') ?? '',
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version: fields.get('version_id') ?? '',
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};
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} catch (e) {
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didFailToReadOSRelease = true;
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}
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}
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return osRelease;
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}
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export function getLinuxDistributionInfoSync(): { id: string, version: string } | undefined {
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if (process.platform !== 'linux')
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return undefined;
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if (!osRelease && !didFailToReadOSRelease) {
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try {
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// List of /etc/os-release values for different distributions could be
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// found here: https://gist.github.com/aslushnikov/8ceddb8288e4cf9db3039c02e0f4fb75
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const osReleaseText = fs.readFileSync('/etc/os-release', 'utf8');
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const fields = parseOSReleaseText(osReleaseText);
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osRelease = {
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id: fields.get('id') ?? '',
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version: fields.get('version_id') ?? '',
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};
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} catch (e) {
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didFailToReadOSRelease = true;
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}
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}
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return osRelease;
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}
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function parseOSReleaseText(osReleaseText: string): Map<string, string> {
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const fields = new Map();
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for (const line of osReleaseText.split('\n')) {
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const tokens = line.split('=');
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const name = tokens.shift();
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let value = tokens.join('=').trim();
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if (value.startsWith('"') && value.endsWith('"'))
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value = value.substring(1, value.length - 1);
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if (!name)
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continue;
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fields.set(name.toLowerCase(), value);
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}
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return fields;
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}
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