44 lines
1.5 KiB
JavaScript
44 lines
1.5 KiB
JavaScript
// Main logic for `execaCommand()`
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export const mapCommandAsync = ({file, commandArguments}) => parseCommand(file, commandArguments);
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// Main logic for `execaCommandSync()`
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export const mapCommandSync = ({file, commandArguments}) => ({...parseCommand(file, commandArguments), isSync: true});
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// Convert `execaCommand(command)` into `execa(file, ...commandArguments)`
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const parseCommand = (command, unusedArguments) => {
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if (unusedArguments.length > 0) {
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throw new TypeError(`The command and its arguments must be passed as a single string: ${command} ${unusedArguments}.`);
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}
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const [file, ...commandArguments] = parseCommandString(command);
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return {file, commandArguments};
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};
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// Convert `command` string into an array of file or arguments to pass to $`${...fileOrCommandArguments}`
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export const parseCommandString = command => {
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if (typeof command !== 'string') {
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throw new TypeError(`The command must be a string: ${String(command)}.`);
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}
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const trimmedCommand = command.trim();
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if (trimmedCommand === '') {
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return [];
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}
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const tokens = [];
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for (const token of trimmedCommand.split(SPACES_REGEXP)) {
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// Allow spaces to be escaped by a backslash if not meant as a delimiter
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const previousToken = tokens.at(-1);
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if (previousToken && previousToken.endsWith('\\')) {
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// Merge previous token with current one
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tokens[tokens.length - 1] = `${previousToken.slice(0, -1)} ${token}`;
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} else {
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tokens.push(token);
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}
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}
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return tokens;
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};
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const SPACES_REGEXP = / +/g;
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