How to use the _parse function from cross-spawn

Find comprehensive JavaScript cross-spawn._parse code examples handpicked from public code repositorys.

cross-spawn._parse is a function in the Cross-Spawn library that parses a command string into an array of arguments and an optional options object.

index.js

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	return env;
};


const handleArgs = (file, args, options = {}) => {
	const parsed = crossSpawn._parse(file, args, options);
	file = parsed.command;
	args = parsed.args;
	options = parsed.options;

+ 4 other calls in file

index.js

GitHub: leechipang/grpc007

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		options: opts,
		file: cmd,
		original: cmd
	};
} else {
	parsed = crossSpawn._parse(cmd, args, opts);
}

opts = Object.assign({
	maxBuffer: TEN_MEGABYTES,

+ 4 other calls in file

How does cross-spawn._parse work?

cross-spawn._parse works by taking a command string as input and parsing it into an array of arguments and an optional options object that can be passed to child processes created with Node.js' child_process module.

When called, cross-spawn._parse first splits the command string into an array of space-separated tokens, which represent the individual arguments for the command.

The function then checks if the last element of the argument array is an options object by looking for a double dash (--) delimiter. If found, the options object is extracted from the array and returned separately.

Finally, cross-spawn._parse returns an object containing the parsed argument array and the options object (if present).

By using this function, the Cross-Spawn library can take command strings as input and pass them to child processes created with Node.js' child_process module as an array of arguments and an optional options object, rather than as a single string. This can help avoid issues with shell injection or platform-specific command syntax.

Ai Example

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const crossSpawn = require("cross-spawn");

// define a command string
const commandStr = "npm install --save-dev jest";

// parse the command string using cross-spawn._parse
const { args, options } = crossSpawn._parse(commandStr);

console.log(args);
console.log(options);

In this example, we're using cross-spawn._parse to parse a command string that installs the Jest testing library as a development dependency using npm. We first define the command string as a string literal. We then pass this string to crossSpawn._parse, which parses the command string into an array of arguments and an options object. We log the resulting args and options objects to the console, which might output the following: javascript Copy code

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