GetWriterForLevel retrieves the appropriate Writer for the log level provided.

IsQuiet defines whether a pack logger is set to quiet mode.

NewLogWithWriters creates a logger to be used with pack CLI.

NewPrefixWriter writes by w will be prefixed.

NewSimpleLogger creates a simple logger for the pack library.

A customized implementation of bufio.ScanLines that preserves new line characters.

Tip logs a tip.

WithClock is an option used to initialize a LogWithWriters with a given clock function.

WithVerbose is an option used to initialize a LogWithWriters with Verbose turned on.

InvalidFileDescriptor based on https://golang.org/src/os/file_unix.go?s=2183:2210#L57.

LogWithWriters is a logger used with the pack CLI, allowing users to print logs for various levels, including Info, Debug and Error.

PrefixWriter is a buffering writer that prefixes each new line.

Logger defines behavior required by a logging package used by pack libraries.