diff options
Diffstat (limited to 'vendor/github.com/spf13/jwalterweatherman/thatswhyyoualwaysleaveanote.go')
| -rw-r--r-- | vendor/github.com/spf13/jwalterweatherman/thatswhyyoualwaysleaveanote.go | 256 |
1 files changed, 0 insertions, 256 deletions
diff --git a/vendor/github.com/spf13/jwalterweatherman/thatswhyyoualwaysleaveanote.go b/vendor/github.com/spf13/jwalterweatherman/thatswhyyoualwaysleaveanote.go deleted file mode 100644 index b64ed46..0000000 --- a/vendor/github.com/spf13/jwalterweatherman/thatswhyyoualwaysleaveanote.go +++ /dev/null @@ -1,256 +0,0 @@ -// Copyright © 2016 Steve Francia <spf@spf13.com>. -// -// Use of this source code is governed by an MIT-style -// license that can be found in the LICENSE file. - -package jwalterweatherman - -import ( - "fmt" - "io" - "io/ioutil" - "log" - "os" - "sync/atomic" -) - -// Level describes the chosen log level between -// debug and critical. -type Level int - -type NotePad struct { - Handle io.Writer - Level Level - Prefix string - Logger **log.Logger - counter uint64 -} - -func (n *NotePad) incr() { - atomic.AddUint64(&n.counter, 1) -} - -func (n *NotePad) resetCounter() { - atomic.StoreUint64(&n.counter, 0) -} - -func (n *NotePad) getCount() uint64 { - return atomic.LoadUint64(&n.counter) -} - -type countingWriter struct { - incrFunc func() -} - -func (cw *countingWriter) Write(p []byte) (n int, err error) { - cw.incrFunc() - - return 0, nil -} - -// Feedback is special. It writes plainly to the output while -// logging with the standard extra information (date, file, etc) -// Only Println and Printf are currently provided for this -type Feedback struct{} - -const ( - LevelTrace Level = iota - LevelDebug - LevelInfo - LevelWarn - LevelError - LevelCritical - LevelFatal - DefaultLogThreshold = LevelWarn - DefaultStdoutThreshold = LevelError -) - -var ( - TRACE *log.Logger - DEBUG *log.Logger - INFO *log.Logger - WARN *log.Logger - ERROR *log.Logger - CRITICAL *log.Logger - FATAL *log.Logger - LOG *log.Logger - FEEDBACK Feedback - LogHandle io.Writer = ioutil.Discard - OutHandle io.Writer = os.Stdout - BothHandle io.Writer = io.MultiWriter(LogHandle, OutHandle) - NotePads []*NotePad = []*NotePad{trace, debug, info, warn, err, critical, fatal} - - trace *NotePad = &NotePad{Level: LevelTrace, Handle: os.Stdout, Logger: &TRACE, Prefix: "TRACE: "} - debug *NotePad = &NotePad{Level: LevelDebug, Handle: os.Stdout, Logger: &DEBUG, Prefix: "DEBUG: "} - info *NotePad = &NotePad{Level: LevelInfo, Handle: os.Stdout, Logger: &INFO, Prefix: "INFO: "} - warn *NotePad = &NotePad{Level: LevelWarn, Handle: os.Stdout, Logger: &WARN, Prefix: "WARN: "} - err *NotePad = &NotePad{Level: LevelError, Handle: os.Stdout, Logger: &ERROR, Prefix: "ERROR: "} - critical *NotePad = &NotePad{Level: LevelCritical, Handle: os.Stdout, Logger: &CRITICAL, Prefix: "CRITICAL: "} - fatal *NotePad = &NotePad{Level: LevelFatal, Handle: os.Stdout, Logger: &FATAL, Prefix: "FATAL: "} - logThreshold Level = DefaultLogThreshold - outputThreshold Level = DefaultStdoutThreshold -) - -const ( - DATE = log.Ldate - TIME = log.Ltime - SFILE = log.Lshortfile - LFILE = log.Llongfile - MSEC = log.Lmicroseconds -) - -var logFlags = DATE | TIME | SFILE - -func init() { - SetStdoutThreshold(DefaultStdoutThreshold) -} - -// initialize will setup the jWalterWeatherman standard approach of providing the user -// some feedback and logging a potentially different amount based on independent log and output thresholds. -// By default the output has a lower threshold than logged -// Don't use if you have manually set the Handles of the different levels as it will overwrite them. -func initialize() { - BothHandle = io.MultiWriter(LogHandle, OutHandle) - - for _, n := range NotePads { - if n.Level < outputThreshold && n.Level < logThreshold { - n.Handle = ioutil.Discard - } else if n.Level >= outputThreshold && n.Level >= logThreshold { - n.Handle = BothHandle - } else if n.Level >= outputThreshold && n.Level < logThreshold { - n.Handle = OutHandle - } else { - n.Handle = LogHandle - } - } - - for _, n := range NotePads { - n.Handle = io.MultiWriter(n.Handle, &countingWriter{n.incr}) - *n.Logger = log.New(n.Handle, n.Prefix, logFlags) - } - - LOG = log.New(LogHandle, - "LOG: ", - logFlags) -} - -// Set the log Flags (Available flag: DATE, TIME, SFILE, LFILE and MSEC) -func SetLogFlag(flags int) { - logFlags = flags - initialize() -} - -// Level returns the current global log threshold. -func LogThreshold() Level { - return logThreshold -} - -// Level returns the current global output threshold. -func StdoutThreshold() Level { - return outputThreshold -} - -// Ensures that the level provided is within the bounds of available levels -func levelCheck(level Level) Level { - switch { - case level <= LevelTrace: - return LevelTrace - case level >= LevelFatal: - return LevelFatal - default: - return level - } -} - -// Establishes a threshold where anything matching or above will be logged -func SetLogThreshold(level Level) { - logThreshold = levelCheck(level) - initialize() -} - -// Establishes a threshold where anything matching or above will be output -func SetStdoutThreshold(level Level) { - outputThreshold = levelCheck(level) - initialize() -} - -// Conveniently Sets the Log Handle to a io.writer created for the file behind the given filepath -// Will only append to this file -func SetLogFile(path string) { - file, err := os.OpenFile(path, os.O_RDWR|os.O_APPEND|os.O_CREATE, 0666) - if err != nil { - CRITICAL.Println("Failed to open log file:", path, err) - os.Exit(-1) - } - - INFO.Println("Logging to", file.Name()) - - LogHandle = file - initialize() -} - -// Conveniently Creates a temporary file and sets the Log Handle to a io.writer created for it -func UseTempLogFile(prefix string) { - file, err := ioutil.TempFile(os.TempDir(), prefix) - if err != nil { - CRITICAL.Println(err) - } - - INFO.Println("Logging to", file.Name()) - - LogHandle = file - initialize() -} - -// LogCountForLevel returns the number of log invocations for a given level. -func LogCountForLevel(l Level) uint64 { - for _, np := range NotePads { - if np.Level == l { - return np.getCount() - } - } - return 0 -} - -// LogCountForLevelsGreaterThanorEqualTo returns the number of log invocations -// greater than or equal to a given level threshold. -func LogCountForLevelsGreaterThanorEqualTo(threshold Level) uint64 { - var cnt uint64 - for _, np := range NotePads { - if np.Level >= threshold { - cnt += np.getCount() - } - } - return cnt -} - -// ResetLogCounters resets the invocation counters for all levels. -func ResetLogCounters() { - for _, np := range NotePads { - np.resetCounter() - } -} - -// Disables logging for the entire JWW system -func DiscardLogging() { - LogHandle = ioutil.Discard - initialize() -} - -// Feedback is special. It writes plainly to the output while -// logging with the standard extra information (date, file, etc) -// Only Println and Printf are currently provided for this -func (fb *Feedback) Println(v ...interface{}) { - s := fmt.Sprintln(v...) - fmt.Print(s) - LOG.Output(2, s) -} - -// Feedback is special. It writes plainly to the output while -// logging with the standard extra information (date, file, etc) -// Only Println and Printf are currently provided for this -func (fb *Feedback) Printf(format string, v ...interface{}) { - s := fmt.Sprintf(format, v...) - fmt.Print(s) - LOG.Output(2, s) -} |