83 lines
2.6 KiB
TypeScript
83 lines
2.6 KiB
TypeScript
// Copyright 2016-2018, Pulumi 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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* configEnvKey is the environment variable key that the language plugin uses to set configuration values.
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*/
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const configEnvKey = "PULUMI_CONFIG";
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const config: {[key: string]: string} = {};
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/**
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* allConfig returns a copy of the full config map.
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*/
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export function allConfig(): {[key: string]: string} {
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ensureConfig();
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return Object.assign({}, config);
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}
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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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ensureConfig();
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config[cleanKey(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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ensureConfig();
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return config[k];
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}
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/**
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* loaded is set to true if and when we've attempted to load config from the environment.
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*/
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let loaded: boolean = false;
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/**
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* ensureConfig populates the runtime.config object based on configuration set in the environment.
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*/
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export function ensureConfig() {
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if (!loaded) {
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const envConfig = process.env.PULUMI_CONFIG;
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if (envConfig) {
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const envObject: {[key: string]: string} = JSON.parse(envConfig);
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for (const k of Object.keys(envObject)) {
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config[cleanKey(k)] = envObject[k];
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}
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}
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loaded = true;
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}
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}
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/**
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* cleanKey takes a configuration key, and if it is of the form "<string>:config:<string>" removes the ":config:"
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* portion. Previously, our keys always had the string ":config:" in them, and we'd like to remove it. However, the
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* language host needs to continue to set it so we can be compatable with older versions of our packages. Once we
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* stop supporting older packages, we can change the language host to not add this :config: thing and remove this
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* function.
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*/
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function cleanKey(key: string): string {
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const idx = key.indexOf(":");
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if (idx > 0 && key.startsWith("config:", idx + 1)) {
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return key.substring(0, idx) + ":" + key.substring(idx + 1 + "config:".length);
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}
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return key;
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}
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