Also: - Cleaned up existing tags so they're consistently at the bottom of doc comments where they should be - Cleaned up some unused imports while I was taking a pass over the files - Marked one function `@deprecated` that should be deprecated
420 lines
15 KiB
TypeScript
420 lines
15 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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import { RunError } from "./errors";
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import { getProject } from "./metadata";
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import { Output } from "./output";
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import { getConfig } from "./runtime";
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function makeSecret<T>(value: T): Output<T> {
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return new Output(
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[], Promise.resolve(value),
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/*isKnown:*/ Promise.resolve(true), /*isSecret:*/ Promise.resolve(true),
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Promise.resolve([]));
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}
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/**
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* Config is a bag of related configuration state. Each bag contains any number of configuration variables, indexed by
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* simple keys, and each has a name that uniquely identifies it; two bags with different names do not share values for
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* variables that otherwise share the same key. For example, a bag whose name is `pulumi:foo`, with keys `a`, `b`,
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* and `c`, is entirely separate from a bag whose name is `pulumi:bar` with the same simple key names. Each key has a
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* fully qualified names, such as `pulumi:foo:a`, ..., and `pulumi:bar:a`, respectively.
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*/
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export class Config {
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/**
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* name is the configuration bag's logical name and uniquely identifies it. The default is the name of the current
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* project.
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*/
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public readonly name: string;
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constructor(name?: string) {
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if (name === undefined) {
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name = getProject();
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}
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if (name.endsWith(":config")) {
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name = name.replace(/:config$/, "");
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}
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this.name = name;
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}
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/**
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* get loads an optional configuration value by its key, or undefined if it doesn't exist.
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*
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* @param key The key to lookup.
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* @param opts An options bag to constrain legal values.
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*/
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public get<K extends string = string>(key: string, opts?: StringConfigOptions<K>): K | undefined {
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const v: string | undefined = getConfig(this.fullKey(key));
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if (v === undefined) {
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return undefined;
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}
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if (opts) {
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// SAFETY: if allowedValues != null, verifying v ∈ K[]
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if (opts.allowedValues !== undefined && opts.allowedValues.indexOf(v as any) === -1) {
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throw new ConfigEnumError(this.fullKey(key), v, opts.allowedValues);
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} else if (opts.minLength !== undefined && v.length < opts.minLength) {
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throw new ConfigRangeError(this.fullKey(key), v, opts.minLength, undefined);
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} else if (opts.maxLength !== undefined && v.length > opts.maxLength) {
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throw new ConfigRangeError(this.fullKey(key), v, undefined, opts.maxLength);
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} else if (opts.pattern !== undefined) {
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let pattern = opts.pattern;
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if (typeof pattern === "string") {
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pattern = new RegExp(pattern);
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}
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if (!pattern.test(v)) {
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throw new ConfigPatternError(this.fullKey(key), v, pattern);
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}
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}
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}
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// SAFETY:
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// allowedValues != null ⇒ v ∈ K[]
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// allowedValues == null ⇒ K = string & v : string
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return v as K;
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}
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/**
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* getSecret loads an optional configuration value by its key, marking it as a secret, or undefined if it
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* doesn't exist.
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*
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* @param key The key to lookup.
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* @param opts An options bag to constrain legal values.
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*/
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public getSecret<K extends string = string>(key: string, opts?: StringConfigOptions<K>): Output<K> | undefined {
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const v = this.get(key, opts);
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if (v === undefined) {
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return undefined;
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}
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return makeSecret(v);
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}
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/**
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* getBoolean loads an optional configuration value, as a boolean, by its key, or undefined if it doesn't exist.
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* If the configuration value isn't a legal boolean, this function will throw an error.
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*
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* @param key The key to lookup.
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*/
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public getBoolean(key: string): boolean | undefined {
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const v: string | undefined = this.get(key);
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if (v === undefined) {
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return undefined;
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} else if (v === "true") {
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return true;
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} else if (v === "false") {
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return false;
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}
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throw new ConfigTypeError(this.fullKey(key), v, "boolean");
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}
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/**
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* getSecretBoolean loads an optional configuration value, as a boolean, by its key, making it as a secret
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* or undefined if it doesn't exist. If the configuration value isn't a legal boolean, this function will
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* throw an error.
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*
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* @param key The key to lookup.
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*/
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public getSecretBoolean(key: string): Output<boolean> | undefined {
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const v = this.getBoolean(key);
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if (v === undefined) {
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return undefined;
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}
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return makeSecret(v);
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}
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/**
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* getNumber loads an optional configuration value, as a number, by its key, or undefined if it doesn't exist.
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* If the configuration value isn't a legal number, this function will throw an error.
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*
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* @param key The key to lookup.
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* @param opts An options bag to constrain legal values.
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*/
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public getNumber(key: string, opts?: NumberConfigOptions): number | undefined {
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const v: string | undefined = this.get(key);
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if (v === undefined) {
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return undefined;
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}
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const f: number = parseFloat(v);
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if (isNaN(f)) {
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throw new ConfigTypeError(this.fullKey(key), v, "number");
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}
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if (opts) {
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if (opts.min !== undefined && f < opts.min) {
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throw new ConfigRangeError(this.fullKey(key), f, opts.min, undefined);
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} else if (opts.max !== undefined && f > opts.max) {
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throw new ConfigRangeError(this.fullKey(key), f, undefined, opts.max);
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}
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}
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return f;
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}
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/**
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* getSecretNumber loads an optional configuration value, as a number, by its key, marking it as a secret
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* or undefined if it doesn't exist.
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* If the configuration value isn't a legal number, this function will throw an error.
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*
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* @param key The key to lookup.
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* @param opts An options bag to constrain legal values.
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*/
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public getSecretNumber(key: string, opts?: NumberConfigOptions): Output<number> | undefined {
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const v = this.getNumber(key, opts);
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if (v === undefined) {
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return undefined;
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}
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return makeSecret(v);
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}
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/**
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* getObject loads an optional configuration value, as an object, by its key, or undefined if it doesn't exist.
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* This routine simply JSON parses and doesn't validate the shape of the contents.
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*
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* @param key The key to lookup.
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*/
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public getObject<T>(key: string): T | undefined {
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const v: string | undefined = this.get(key);
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if (v === undefined) {
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return undefined;
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}
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try {
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return <T>JSON.parse(v);
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}
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catch (err) {
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throw new ConfigTypeError(this.fullKey(key), v, "JSON object");
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}
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}
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/**
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* getSecretObject loads an optional configuration value, as an object, by its key, marking it as a secret
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* or undefined if it doesn't exist.
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* This routine simply JSON parses and doesn't validate the shape of the contents.
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*
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* @param key The key to lookup.
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*/
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public getSecretObject<T>(key: string): Output<T> | undefined {
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const v = this.getObject<T>(key);
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if (v === undefined) {
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return undefined;
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}
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return makeSecret<T>(v);
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}
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/**
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* require loads a configuration value by its given key. If it doesn't exist, an error is thrown.
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*
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* @param key The key to lookup.
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* @param opts An options bag to constrain legal values.
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*/
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public require<K extends string = string>(key: string, opts?: StringConfigOptions<K>): K {
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const v: K | undefined = this.get(key, opts);
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if (v === undefined) {
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throw new ConfigMissingError(this.fullKey(key));
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}
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return v;
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}
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/**
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* require loads a configuration value by its given key, marking it as a secet. If it doesn't exist, an error
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* is thrown.
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*
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* @param key The key to lookup.
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* @param opts An options bag to constrain legal values.
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*/
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public requireSecret<K extends string = string>(key: string, opts?: StringConfigOptions<K>): Output<K> {
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return makeSecret(this.require(key, opts));
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}
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/**
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* requireBoolean loads a configuration value, as a boolean, by its given key. If it doesn't exist, or the
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* configuration value is not a legal boolean, an error is thrown.
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*
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* @param key The key to lookup.
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*/
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public requireBoolean(key: string): boolean {
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const v: boolean | undefined = this.getBoolean(key);
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if (v === undefined) {
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throw new ConfigMissingError(this.fullKey(key));
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}
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return v;
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}
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/**
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* requireSecretBoolean loads a configuration value, as a boolean, by its given key, marking it as a secret.
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* If it doesn't exist, or the configuration value is not a legal boolean, an error is thrown.
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*
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* @param key The key to lookup.
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*/
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public requireSecretBoolean(key: string): Output<boolean> {
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return makeSecret(this.requireBoolean(key));
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}
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/**
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* requireNumber loads a configuration value, as a number, by its given key. If it doesn't exist, or the
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* configuration value is not a legal number, an error is thrown.
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*
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* @param key The key to lookup.
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* @param opts An options bag to constrain legal values.
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*/
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public requireNumber(key: string, opts?: NumberConfigOptions): number {
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const v: number | undefined = this.getNumber(key, opts);
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if (v === undefined) {
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throw new ConfigMissingError(this.fullKey(key));
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}
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return v;
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}
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/**
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* requireSecretNumber loads a configuration value, as a number, by its given key, marking it as a secret.
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* If it doesn't exist, or the configuration value is not a legal number, an error is thrown.
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*
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* @param key The key to lookup.
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* @param opts An options bag to constrain legal values.
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*/
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public requireSecretNumber(key: string, opts?: NumberConfigOptions): Output<number> {
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return makeSecret(this.requireNumber(key, opts));
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}
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/**
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* requireObject loads a configuration value as a JSON string and deserializes the JSON into a JavaScript object. If
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* it doesn't exist, or the configuration value is not a legal JSON string, an error is thrown.
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*
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* @param key The key to lookup.
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*/
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public requireObject<T>(key: string): T {
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const v: T | undefined = this.getObject<T>(key);
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if (v === undefined) {
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throw new ConfigMissingError(this.fullKey(key));
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}
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return v;
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}
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/**
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* requireSecretObject loads a configuration value as a JSON string and deserializes the JSON into a JavaScript
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* object, marking it as a secret. If it doesn't exist, or the configuration value is not a legal JSON
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* string, an error is thrown.
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*
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* @param key The key to lookup.
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*/
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public requireSecretObject<T>(key: string): Output<T> {
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return makeSecret(this.requireObject<T>(key));
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}
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/**
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* fullKey turns a simple configuration key into a fully resolved one, by prepending the bag's name.
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*
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* @param key The key to lookup.
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*/
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private fullKey(key: string): string {
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return `${this.name}:${key}`;
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}
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}
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/**
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* StringConfigOptions may be used to constrain the set of legal values a string config value may contain.
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*/
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export interface StringConfigOptions<K extends string = string> {
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/**
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* The legal enum values. If it does not match, a ConfigEnumError is thrown.
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*/
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allowedValues?: K[];
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/**
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* The minimum string length. If the string is not this long, a ConfigRangeError is thrown.
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*/
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minLength?: number;
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/**
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* The maximum string length. If the string is longer than this, a ConfigRangeError is thrown.
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*/
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maxLength?: number;
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/**
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* A regular expression the string must match. If it does not match, a ConfigPatternError is thrown.
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*/
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pattern?: string | RegExp;
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}
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/**
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* NumberConfigOptions may be used to constrain the set of legal values a number config value may contain.
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*/
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export interface NumberConfigOptions {
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/**
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* The minimum number value, inclusive. If the number is less than this, a ConfigRangeError is thrown.
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*/
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min?: number;
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/**
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* The maximum number value, inclusive. If the number is greater than this, a ConfigRangeError is thrown.
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*/
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max?: number;
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}
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/**
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* ConfigTypeError is used when a configuration value is of the wrong type.
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*/
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class ConfigTypeError extends RunError {
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constructor(key: string, v: any, expectedType: string) {
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super(`Configuration '${key}' value '${v}' is not a valid ${expectedType}`);
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}
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}
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/**
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* ConfigEnumError is used when a configuration value isn't a correct enum value.
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*/
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class ConfigEnumError extends RunError {
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constructor(key: string, v: any, values: any[]) {
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super(`Configuration '${key}' value '${v}' is not a legal enum value (${JSON.stringify(values)})`);
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}
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}
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/**
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* ConfigRangeError is used when a configuration value is outside of the range of legal sizes.
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*/
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class ConfigRangeError extends RunError {
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constructor(key: string, v: any, min: number | undefined, max: number | undefined) {
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let range: string;
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if (max === undefined) {
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range = `min ${min}`;
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} else if (min === undefined) {
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range = `max ${max}`;
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} else {
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range = `${min}-${max}`;
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}
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if (typeof v === "string") {
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range += " chars";
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}
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super(`Configuration '${key}' value '${v}' is outside of the legal range (${range}, inclusive)`);
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}
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}
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/**
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* ConfigPatternError is used when a configuration value does not match the given regular expression.
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*/
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class ConfigPatternError extends RunError {
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constructor(key: string, v: string, regexp: RegExp) {
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super(`Configuration '${key}' value '${v}' does not match the regular expression ${regexp.toString()}`);
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}
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}
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/**
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* ConfigMissingError is used when a configuration value is completely missing.
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*/
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class ConfigMissingError extends RunError {
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constructor(public key: string) {
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super(
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`Missing required configuration variable '${key}'\n` +
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`\tplease set a value using the command \`pulumi config set ${key} <value>\``,
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);
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}
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}
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