feat: extractShebangCommand

[hugojosefson]

Add below function:

/**
 * Extracts the command to run a script, from its shebang line.
 * @param scriptContents the script source code
 * @returns array of command and parameters
 */
export function extractShebangCommand(scriptContents: string): string[] {
  return scriptContents.split("\n")[0].replace(/^#!/, "").split(" ");
}

...with the following edits:

TODO

• Use .split("\n", 1) to not read more than necessary.
• Use npm:[email protected] instead of .split(" ").
• Return some more "Command":y type from this repo?

[hugojosefson]

import argvSplit from "argv-split";

/**
 * Extracts the command to run a script, from its shebang line.
 * @param scriptContents the script source code
 * @returns array of command and parameters
 */
export function extractShebangCommand(scriptContents: string): string[] {
  return argvSplit(scriptContents.split("\n", 1)[0].replace(/^#!/, ""));
}