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node_modules/@rushstack/ts-command-line/lib/parameters/CommandLineChoiceParameter.js

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+"use strict";
+// Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
+// See LICENSE in the project root for license information.
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.CommandLineChoiceParameter = void 0;
+const BaseClasses_1 = require("./BaseClasses");
+/**
+ * The data type returned by {@link CommandLineParameterProvider.(defineChoiceParameter:1)}.
+ * @public
+ */
+class CommandLineChoiceParameter extends BaseClasses_1.CommandLineParameterBase {
+    /** @internal */
+    constructor(definition) {
+        super(definition);
+        this._value = undefined;
+        /** {@inheritDoc CommandLineParameterBase.kind} */
+        this.kind = -BaseClasses_1.CommandLineParameterKind.Choice;
+        const { alternatives, defaultValue, completions } = definition;
+        const alternativesSet = alternatives instanceof Set ? alternatives : new Set(alternatives);
+        if (alternativesSet.size < 1) {
+            throw new Error(`When defining a choice parameter, the alternatives list must contain at least one value.`);
+        }
+        if (defaultValue && !alternativesSet.has(defaultValue)) {
+            throw new Error(`The specified default value "${defaultValue}"` +
+                ` is not one of the available options: ${alternatives.toString()}`);
+        }
+        this.alternatives = alternativesSet;
+        this.defaultValue = defaultValue;
+        this.validateDefaultValue(!!this.defaultValue);
+        this.completions = completions;
+    }
+    /**
+     * {@inheritDoc CommandLineParameterBase._setValue}
+     * @internal
+     */
+    _setValue(data) {
+        // abstract
+        if (data !== null && data !== undefined) {
+            if (typeof data !== 'string') {
+                this.reportInvalidData(data);
+            }
+            this._value = data;
+            return;
+        }
+        if (this.environmentVariable !== undefined) {
+            // Try reading the environment variable
+            const environmentValue = process.env[this.environmentVariable];
+            if (environmentValue !== undefined && environmentValue !== '') {
+                if (!this.alternatives.has(environmentValue)) {
+                    const choices = '"' + Array.from(this.alternatives).join('", "') + '"';
+                    throw new Error(`Invalid value "${environmentValue}" for the environment variable` +
+                        ` ${this.environmentVariable}.  Valid choices are: ${choices}`);
+                }
+                this._value = environmentValue;
+                return;
+            }
+        }
+        if (this.defaultValue !== undefined) {
+            this._value = this.defaultValue;
+            return;
+        }
+        this._value = undefined;
+    }
+    /**
+     * {@inheritDoc CommandLineParameterBase._getSupplementaryNotes}
+     * @internal
+     */
+    _getSupplementaryNotes(supplementaryNotes) {
+        // virtual
+        super._getSupplementaryNotes(supplementaryNotes);
+        if (this.defaultValue !== undefined) {
+            supplementaryNotes.push(`The default value is "${this.defaultValue}".`);
+        }
+    }
+    /**
+     * Returns the argument value for a choice parameter that was parsed from the command line.
+     *
+     * @remarks
+     * The return value will be `undefined` if the command-line has not been parsed yet,
+     * or if the parameter was omitted and has no default value.
+     */
+    get value() {
+        return this._value;
+    }
+    /** {@inheritDoc CommandLineParameterBase.appendToArgList} @override */
+    appendToArgList(argList) {
+        if (this.value !== undefined) {
+            argList.push(this.longName);
+            argList.push(this.value);
+        }
+    }
+}
+exports.CommandLineChoiceParameter = CommandLineChoiceParameter;
+//# sourceMappingURL=CommandLineChoiceParameter.js.map