73 lines
2.1 KiB
TypeScript
73 lines
2.1 KiB
TypeScript
// Copyright 2016-2017, Pulumi Corporation. All rights reserved.
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/**
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* configEnvKey is the environment variable key for configuration that we will check in the event that a
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* configuration variable is missing. Explicit overrides take precedence.
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*/
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export const configEnvKey = "PULUMI_CONFIG";
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const config: {[key: string]: string} = {};
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/**
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* setConfig sets a configuration variable.
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*/
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export function setConfig(k: string, v: string): void {
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config[k] = v;
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}
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/**
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* getConfig returns a configuration variable's value or undefined if it is unset.
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*/
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export function getConfig(k: string): string | undefined {
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// If the config has been set explicitly, use it.
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if (config.hasOwnProperty(k)) {
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return config[k];
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}
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// If there is a specific PULUMI_CONFIG_<k> variable, use it.
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const envKey: string = getConfigEnvKey(k);
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if (process.env.hasOwnProperty(envKey)) {
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return process.env[envKey];
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}
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// If the config hasn't been set, but there is a process-wide PULUMI_CONFIG envvar, use it.
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const envObject: {[key: string]: string} = getConfigEnv();
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if (envObject.hasOwnProperty(k)) {
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return envObject[k];
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}
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return undefined;
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}
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/**
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* getConfigEnvKey returns a scrubbed environment variable key, PULUMI_CONFIG_<k>, that can be used for
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* setting explicit varaibles. This is unlike PULUMI_CONFIG which is just a JSON-serialized bag.
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*/
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export function getConfigEnvKey(key: string): string {
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let envkey: string = "";
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for (const c of key) {
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if (c === "_" || (c >= "A" && c <= "Z") || (c >= "0" && c <= "9")) {
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envkey += c;
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}
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else if (c >= "a" && c <= "z") {
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envkey += c.toUpperCase();
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}
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else {
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envkey += "_";
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}
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}
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return `${configEnvKey}_${envkey}`;
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}
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/**
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* getConfigEnv returns the environment map that will be used for config checking when variables aren't set.
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*/
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export function getConfigEnv(): {[key: string]: string} {
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const envConfig = process.env.PULUMI_CONFIG;
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if (envConfig) {
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return JSON.parse(envConfig);
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}
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return {};
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}
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