log

package

v0.0.9 Latest Latest Go to latest Published: Jun 21, 2022 License: BSD-2-Clause Imports: 4 Imported by: 6

Details

Valid go.mod file

The Go module system was introduced in Go 1.11 and is the official dependency management solution for Go.
Redistributable license

Redistributable licenses place minimal restrictions on how software can be used, modified, and redistributed.
Tagged version

Modules with tagged versions give importers more predictable builds.
Stable version

When a project reaches major version v1 it is considered stable.
Learn more about best practices

Repository

git.sigsum.org/sigsum-go

Links

Open Source Insights

Documentation ¶

Overview ¶

package log provides a simple logger with leveled log messages.

DebugLevel (highest verbosity)
InfoLevel
WarningLevel
ErrorLevel
FatalLevel (lowest verbosity)

Output is by default written to STDERR. A different output can be specified. Dates and terminal colors can be turned on.

Example ¶

SetOutput(os.Stdout)
SetLevel(WarningLevel)
SetDate(false)
SetColor(false)

Debug("some debug number: %d\n", 10)
Info("some info number: %d\n", 20)
Warning("some warning number: %d\n", 30)
Error("some error number: %d\n", 40)

Output:

[WARN] some warning number: 30
[ERRO] some error number: 40

Index ¶

Constants
func Debug(format string, v ...interface{})
func Error(format string, v ...interface{})
func Fatal(format string, v ...interface{})
func Info(format string, v ...interface{})
func SetColor(ok bool)
func SetDate(ok bool)
func SetLevel(lv level)
func SetOutput(writer io.Writer)
func Warning(format string, v ...interface{})

Examples ¶

Package

Constants ¶

View Source

const (
	DebugLevel   level = iota // DebugLevel logs all messages
	InfoLevel                 // InfoLevel logs info messages and and above
	WarningLevel              // WarningLevel logs warning messages and above
	ErrorLevel                // ErrorLevel logs error messages and above
	FatalLevel                // FatalLevel only logs fatal messages
)

Variables ¶

This section is empty.

Functions ¶

func Debug ¶

func Debug(format string, v ...interface{})

func Error ¶

func Error(format string, v ...interface{})

func Fatal ¶

func Fatal(format string, v ...interface{})

func Info ¶

func Info(format string, v ...interface{})

func SetColor ¶

func SetColor(ok bool)

SetColor (un)sets terminal colors.

func SetDate ¶

func SetDate(ok bool)

SetDate (un)sets date output.

func SetLevel ¶

func SetLevel(lv level)

SetLevel sets the logging level. Available options: DebugLevel, InfoLevel, WarningLevel, ErrorLevel, FatalLevel.

func SetOutput ¶

func SetOutput(writer io.Writer)

SetOutput sets the logging output to a particular writer.

func Warning ¶

func Warning(format string, v ...interface{})

Types ¶

This section is empty.

Source Files ¶

View all Source files

log.go

?	: This menu
/	: Search site
f or F	: Jump to
y or Y	: Canonical URL