| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/bep/logg | package logg implements a simple structured logging API. |
| github.com/bep/logg/handlers/multi | Package multi implements a handler which invokes a number of handlers. |
| github.com/fatih/color | Package color is an ANSI color package to output colorized or SGR defined output to the standard output. |
| github.com/gohugoio/hugo/common/hashing | Package hashing provides common hashing utilities. |
| github.com/gohugoio/hugo/common/terminal | Package terminal contains helper for the terminal, such as coloring output. |
| io | Package io provides basic interfaces to I/O primitives. |
| os | Package os provides a platform-independent interface to operating system functionality. |
| regexp | Package regexp implements regular expression search. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |
| sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |
| time | Package time provides functionality for measuring and displaying time. |