Logger Proxy API

Consts (in decreasing order of severity):

• FATAL
• ERROR
• WARN
• INFO
• DEBUG
• TRACE

Functions:

• log.SetLogLevel(): Log messages below this level of severity will be ignored. Default Log Level is INFO.

• Each of the following also has a formatting string variety; i.e. Fatalf(), Errorf(), etc which behaves the same as fmt.Printf() but outputs to the log instead of stdout.

• log.Fatal(vals... interface{}): prevents the program from continuing i.e. can't allocate additional memory

• log.Error(vals... interface{}): non-fatal, but prevents valid execution i.e. can't connect to a database, complete a function call, open file, invalid format

• log.Warn(vals... interface{}): looks unusual, but does not clearly prevent execution

• log.Info(vals... interface{}): Least severe message that a sysadmin would be interested in i.e. server request logs

• log.Debug(vals... interface{}): high level info for a developer. more than what a sysadmin would typically want

• log.Trace(vals... interface{}): excruciating detail.

• log.SetOutput(io.Writer): Indicates the location for log messages to be written. Default is stdout.

Flags:

These package-level flags are provided to disable expensive code when the code is only needed at
a lower severity than the logger is set at:
    IsError
    IsWarn
    IsInfo
    IsDebug
    IsTrace

example usage:
     if log.IsDebug {
         ...
     }

Output will look like:

"timestamp•LOG_LEVEL•filename.go•linenumber•output"