default_notepad.go

Documentation: github.com/spf13/jwalterweatherman

     1  // Copyright © 2016 Steve Francia <spf@spf13.com>.
     2  //
     3  // Use of this source code is governed by an MIT-style
     4  // license that can be found in the LICENSE file.
     5  
     6  package jwalterweatherman
     7  
     8  import (
     9  	"io"
    10  	"io/ioutil"
    11  	"log"
    12  	"os"
    13  )
    14  
    15  var (
    16  	TRACE    *log.Logger
    17  	DEBUG    *log.Logger
    18  	INFO     *log.Logger
    19  	WARN     *log.Logger
    20  	ERROR    *log.Logger
    21  	CRITICAL *log.Logger
    22  	FATAL    *log.Logger
    23  
    24  	LOG      *log.Logger
    25  	FEEDBACK *Feedback
    26  
    27  	defaultNotepad *Notepad
    28  )
    29  
    30  func reloadDefaultNotepad() {
    31  	TRACE = defaultNotepad.TRACE
    32  	DEBUG = defaultNotepad.DEBUG
    33  	INFO = defaultNotepad.INFO
    34  	WARN = defaultNotepad.WARN
    35  	ERROR = defaultNotepad.ERROR
    36  	CRITICAL = defaultNotepad.CRITICAL
    37  	FATAL = defaultNotepad.FATAL
    38  
    39  	LOG = defaultNotepad.LOG
    40  	FEEDBACK = defaultNotepad.FEEDBACK
    41  }
    42  
    43  func init() {
    44  	defaultNotepad = NewNotepad(LevelError, LevelWarn, os.Stdout, ioutil.Discard, "", log.Ldate|log.Ltime)
    45  	reloadDefaultNotepad()
    46  }
    47  
    48  // SetLogThreshold set the log threshold for the default notepad. Trace by default.
    49  func SetLogThreshold(threshold Threshold) {
    50  	defaultNotepad.SetLogThreshold(threshold)
    51  	reloadDefaultNotepad()
    52  }
    53  
    54  // SetLogOutput set the log output for the default notepad. Discarded by default.
    55  func SetLogOutput(handle io.Writer) {
    56  	defaultNotepad.SetLogOutput(handle)
    57  	reloadDefaultNotepad()
    58  }
    59  
    60  // SetStdoutThreshold set the standard output threshold for the default notepad.
    61  // Info by default.
    62  func SetStdoutThreshold(threshold Threshold) {
    63  	defaultNotepad.SetStdoutThreshold(threshold)
    64  	reloadDefaultNotepad()
    65  }
    66  
    67  // SetStdoutOutput set the stdout output for the default notepad. Default is stdout.
    68  func SetStdoutOutput(handle io.Writer) {
    69  	defaultNotepad.outHandle = handle
    70  	defaultNotepad.init()
    71  	reloadDefaultNotepad()
    72  }
    73  
    74  // SetPrefix set the prefix for the default logger. Empty by default.
    75  func SetPrefix(prefix string) {
    76  	defaultNotepad.SetPrefix(prefix)
    77  	reloadDefaultNotepad()
    78  }
    79  
    80  // SetFlags set the flags for the default logger. "log.Ldate | log.Ltime" by default.
    81  func SetFlags(flags int) {
    82  	defaultNotepad.SetFlags(flags)
    83  	reloadDefaultNotepad()
    84  }
    85  
    86  // SetLogListeners configures the default logger with one or more log listeners.
    87  func SetLogListeners(l ...LogListener) {
    88  	defaultNotepad.logListeners = l
    89  	defaultNotepad.init()
    90  	reloadDefaultNotepad()
    91  }
    92  
    93  // Level returns the current global log threshold.
    94  func LogThreshold() Threshold {
    95  	return defaultNotepad.logThreshold
    96  }
    97  
    98  // Level returns the current global output threshold.
    99  func StdoutThreshold() Threshold {
   100  	return defaultNotepad.stdoutThreshold
   101  }
   102  
   103  // GetStdoutThreshold returns the defined Treshold for the log logger.
   104  func GetLogThreshold() Threshold {
   105  	return defaultNotepad.GetLogThreshold()
   106  }
   107  
   108  // GetStdoutThreshold returns the Treshold for the stdout logger.
   109  func GetStdoutThreshold() Threshold {
   110  	return defaultNotepad.GetStdoutThreshold()
   111  }
   112
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