Add check_free_disk_space misc function (#10536)

* Add check_free_disk_space misc function

* Remove require 'matrix' line in misc_functions.rb

lib/misc_functions.rb

@@ -1,5 +1,7 @@
 # lib/misc_functions.rb
 # Generic implementations of various functions/algorithms that are not crew-specific.
+require_relative 'color'
+
 def require_gem(gem_name_and_require = nil, require_override = nil)
   # Allow only loading gems when needed.
   return if gem_name_and_require.nil?
@@ -91,4 +93,10 @@ class MiscFunctions
     time_seconds_string = "#{time_seconds} second#{time_seconds == 1 ? '' : 's'}"
     return time_hour_string + time_minutes_string + time_seconds_string
   end
+
+  def self.check_free_disk_space(bytes = 0)
+    formatted_size = human_size(bytes)
+    free_space = `echo $(($(stat -f --format="%a*%S" #{CREW_PREFIX})))`.chomp.to_i
+    abort "\nNot enough free disk space.  You need at least #{formatted_size} to install.\n".lightred if free_space < bytes
+  end
 end