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lens/src/main/utils/shell-env.ts
2021-11-12 08:50:57 -05:00

63 lines
2.6 KiB
TypeScript

/**
* Copyright (c) 2021 OpenLens Authors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
import shellEnvironment from "shell-env";
import logger from "../logger";
export type EnvironmentVariables = Record<string, string>;
let shellSyncFailed = false;
/**
* Attempts to get the shell environment per the user's existing startup scripts.
* If the environment can't be retrieved after 5 seconds an error message is logged.
* Subsequent calls after such a timeout simply log an error message without trying
* to get the environment, unless forceRetry is true.
* @param shell the shell to get the environment from
* @param forceRetry if true will always try to get the environment, otherwise if
* a previous call to this function failed then this call will fail too.
* @returns object containing the shell's environment variables. An empty object is
* returned if the call fails.
*/
export async function shellEnv(shell?: string, forceRetry = false) : Promise<EnvironmentVariables> {
if (forceRetry) {
shellSyncFailed = false;
}
if (!shellSyncFailed) {
try {
return await Promise.race([
shellEnvironment(shell),
new Promise<EnvironmentVariables>((_resolve, reject) => setTimeout(() => {
reject(new Error("Resolving shell environment is taking very long. Please review your shell configuration."));
}, 30_000)),
]);
} catch (error) {
logger.error(`shellEnv: ${error}`);
shellSyncFailed = true;
}
} else {
logger.error("shellSync(): Resolving shell environment took too long. Please review your shell configuration.");
}
return {};
}