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module.exports = command;
/**
* command constructs the executable command to run in a shell including the
* user script, the command arguments.
*
* @param {Object} settings Object as:
* { execOptions: {
* exec: String,
* [script: String],
* [scriptPosition: Number],
* [execArgs: Array<string>]
* }
* }
* @return {Object} an object with the node executable and the
* arguments to the command
*/
function command(settings) {
var options = settings.execOptions;
var executable = options.exec;
var args = [];
// after "executable" go the exec args (like --debug, etc)
if (options.execArgs) {
[].push.apply(args, options.execArgs);
}
// then goes the user's script arguments
if (options.args) {
[].push.apply(args, options.args);
}
// after the "executable" goes the user's script
if (options.script) {
args.splice((options.scriptPosition || 0) +
options.execArgs.length, 0, options.script);
}
return {
executable: executable,
args: args,
};
}