Added godoc

pkg.go

@@ -1,3 +1,51 @@
+/*
+wrappederror provides traceable errors:
+
+	package main
+
+	import (
+		// External
+		werr "git.gibonuddevalla.se/go/wrappederror"
+
+		// Standard
+		"encoding/json"
+		"errors"
+		"fmt"
+		"os"
+	)
+
+	func errorHandler(err werr.Error) {
+		// For example print or log error to file
+		fmt.Printf("\x1b[31;1m%s\x1b[0m\n", err)
+		fmt.Printf("\x1b[33;1m%s\x1b[0m\n", err.NoTrace())
+
+		j, _ := json.MarshalIndent(err, "", "    ")
+		fmt.Printf("%s\n\n", j)
+	}
+
+	func main() {
+		// Make file paths relative to this file.
+		werr.Init()
+
+		// Handler to call when using Log().
+		werr.SetLogCallback(errorHandler)
+
+		// Wrap an existing error.
+		err := errors.New("foobar 1")
+		err1 := werr.Wrap(err)
+
+		// Create a new error with extra information.
+		err2 := werr.New("foobar 2").WithCode("FOO-100").WithData(137)
+
+		// The os error contains more information.
+		_, errOS := os.ReadFile("/tmp/does_not_exist")
+		werr.Wrap(errOS).Log()
+
+		// Log the previously wrapped errors.
+		werr.Wrap(err1).Log()
+		werr.Wrap(err2).Log()
+	}
+*/
 package WrappedError
 
 import (