32 lines
1.3 KiB
JavaScript
32 lines
1.3 KiB
JavaScript
import isPlainObject from 'is-plain-obj';
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import {safeNormalizeFileUrl} from '../arguments/file-url.js';
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// The command `arguments` and `options` are both optional.
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// This also does basic validation on them and on the command file.
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export const normalizeParameters = (rawFile, rawArguments = [], rawOptions = {}) => {
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const filePath = safeNormalizeFileUrl(rawFile, 'First argument');
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const [commandArguments, options] = isPlainObject(rawArguments)
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? [[], rawArguments]
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: [rawArguments, rawOptions];
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if (!Array.isArray(commandArguments)) {
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throw new TypeError(`Second argument must be either an array of arguments or an options object: ${commandArguments}`);
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}
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if (commandArguments.some(commandArgument => typeof commandArgument === 'object' && commandArgument !== null)) {
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throw new TypeError(`Second argument must be an array of strings: ${commandArguments}`);
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}
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const normalizedArguments = commandArguments.map(String);
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const nullByteArgument = normalizedArguments.find(normalizedArgument => normalizedArgument.includes('\0'));
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if (nullByteArgument !== undefined) {
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throw new TypeError(`Arguments cannot contain null bytes ("\\0"): ${nullByteArgument}`);
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}
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if (!isPlainObject(options)) {
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throw new TypeError(`Last argument must be an options object: ${options}`);
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}
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return [filePath, normalizedArguments, options];
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};
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