Update to v3.0.0-beta.4 - Logger changes book, examples updated

config/logger.go

@@ -1,43 +1,85 @@
 package config
 
-import "github.com/imdario/mergo"
+import (
+	"github.com/fatih/color"
+	"github.com/imdario/mergo"
+)
 
 import (
-	"io"
 	"os"
 )
 
+const DefaultLoggerPrefix = "[IRIS] "
+
 var (
 	// TimeFormat default time format for any kind of datetime parsing
 	TimeFormat = "Mon, 02 Jan 2006 15:04:05 GMT"
 )
 
 type (
-	// Logger contains the configs for the Logger
+	// Logger contains the full configuration options fields for the Logger
 	Logger struct {
-		Out    io.Writer
+		// Out the (file) writer which the messages/logs will printed to
+		// Default is os.Stdout
+		Out *os.File
+		// Prefix the prefix for each message
 		Prefix string
-		Flag   int
+		// Disabled default is false
+		Disabled bool
+
+		// foreground colors single SGR Code
+
+		// ColorFgDefault the foreground color for the normal message bodies
+		ColorFgDefault int
+		// ColorFgInfo the foreground  color for info messages
+		ColorFgInfo int
+		// ColorFgSuccess the foreground color for success messages
+		ColorFgSuccess int
+		// ColorFgWarning the foreground color for warning messages
+		ColorFgWarning int
+		// ColorFgDanger the foreground color for error messages
+		ColorFgDanger int
+
+		// background colors single SGR Code
+
+		// ColorBgDefault the background color for the normal message bodies
+		ColorBgDefault int
+		// ColorBgInfo the background  color for info messages
+		ColorBgInfo int
+		// ColorBgSuccess the background color for success messages
+		ColorBgSuccess int
+		// ColorBgWarning the background color for warning messages
+		ColorBgWarning int
+		// ColorBgDanger the background color for error messages
+		ColorBgDanger int
+
+		// banners are the force printed/written messages, doesn't care about Disabled field
+		// ColorFgBanner the foreground color for the banner
+		ColorFgBanner int
 	}
 )
 
 // DefaultLogger returns the default configs for the Logger
 func DefaultLogger() Logger {
-	return Logger{Out: os.Stdout, Prefix: "", Flag: 0}
-}
-
-// Merge merges the default with the given config and returns the result
-func (c Logger) Merge(cfg []Logger) (config Logger) {
-
-	if len(cfg) > 0 {
-		config = cfg[0]
-		mergo.Merge(&config, c)
-	} else {
-		_default := c
-		config = _default
+	return Logger{
+		Out:      os.Stdout,
+		Prefix:   DefaultLoggerPrefix,
+		Disabled: false,
+		// foreground colors
+		ColorFgDefault: int(color.FgHiWhite),
+		ColorFgInfo:    int(color.FgCyan),
+		ColorFgSuccess: int(color.FgHiGreen),
+		ColorFgWarning: int(color.FgHiMagenta),
+		ColorFgDanger:  int(color.FgHiRed),
+		// background colors
+		ColorBgDefault: int(color.BgHiBlack),
+		ColorBgInfo:    int(color.BgHiBlack),
+		ColorBgSuccess: int(color.BgHiBlack),
+		ColorBgWarning: int(color.BgHiBlack),
+		ColorBgDanger:  int(color.BgHiWhite),
+		// banner colors
+		ColorFgBanner: int(color.FgHiBlue),
 	}
-
-	return
 }
 
 // MergeSingle merges the default with the given config and returns the result