GLib.spawn_sync

function spawn_sync(working_directory: String, argv: Array(String), envp: Array(String), flags: GLib.SpawnFlags, child_setup: GLib.SpawnChildSetupFunc): [ok: Boolean, standard_output: ByteArray, standard_error: ByteArray, exit_status: Number(gint)] {
    // Gjs wrapper for g_spawn_sync()
}

Executes a child synchronously (waits for the child to exit before returning). All output from the child is stored in standard_output and standard_error, if those parameters are non-null. Note that you must set the GLib.SpawnFlags.stdout_to_dev_null and GLib.SpawnFlags.stderr_to_dev_null flags when passing null for standard_output and standard_error.

If exit_status is non-null, the platform-specific exit status of the child is stored there; see the documentation of GLib.spawn_check_exit_status for how to use and interpret this. Note that it is invalid to pass GLib.SpawnFlags.do_not_reap_child in flags.

If an error occurs, no data is returned in standard_output, standard_error, or exit_status.

This function calls GLib.spawn_async_with_pipes internally; see that function for full details on the other parameters and details on how these functions work on Windows.

working_directory

child's current working directory, or null to inherit parent's

argv

child's argument vector

envp

child's environment, or null to inherit parent's

flags

flags from GLib.SpawnFlags

child_setup

function to run in the child just before exec()

ok

true on success, false if an error was set

standard_output

return location for child output, or null

standard_error

return location for child error messages, or null

exit_status

return location for child exit status, as returned by waitpid(), or null