add On() & Off() also Fprintln() & Fprintf()

Signed-off-by: Jeff Carr <jcarr@wit.com>

Makefile

@@ -1,8 +1,11 @@
 # git remote add github git@github.com:wit-go/log.git
 
-all:
-	#@GO111MODULE=off go vet -x
-	GO111MODULE=off go vet
+all: goimport vet
+	@#GO111MODULE=off go vet -x
+	@echo this go library builds ok
+
+vet:
+	@GO111MODULE=off go vet
 
 redomod:
 	rm -f go.*

bool.go

@@ -1,12 +0,0 @@
-// Copyright 2024 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package log
-
-func Bool(b bool, a ...any) {
-	if !b {
-		return
-	}
-	realPrintln(a...)
-}

error.go

@@ -4,10 +4,16 @@
 
 package log
 
+import "fmt"
+
 func Error(err error, a ...any) {
-	if !ERROR.Get() {
+	if ERROR.Disabled() {
 		return
 	}
 	realPrintln("Error:", err)
 	realPrintln(a...)
 }
+
+func Errorf(f string, a ...any) error {
+	return fmt.Errorf(f, a...)
+}

flags.go

@@ -30,6 +30,8 @@ import (
 	"sync"
 )
 
+var off bool // completely shut up until I tell you to talk again
+
 var INFO *LogFlag    // toggles log.Info()
 var VERBOSE *LogFlag // toggles log.Verbose()
 var SPEW *LogFlag    // toggles log.Spew()
@@ -56,6 +58,7 @@ type LogFlag struct {
 
 var flags []*LogFlag
 var daemonMode bool
+var timestamps bool = false
 var httpMode http.ResponseWriter
 
 func init() {
@@ -141,17 +144,18 @@ func ProcessFlags(callback func(*LogFlag)) {
 
 }
 
-// probably a better name than Get()
-// switch to this
-func (f *LogFlag) Bool() bool {
+// is the output flag disabled?
+// if so, don't print anything!
+func (f *LogFlag) Disabled() bool {
 	if !f.Ok() {
-		return false
+		return true
 	}
-	return f.b
+	return !f.b
 }
 
-// returns the value of the flag
-func (f *LogFlag) Get() bool {
+// just the opposite of Disabled()
+// both are here just for code readability
+func (f *LogFlag) Enabled() bool {
 	if !f.Ok() {
 		return false
 	}

info.go

@@ -5,20 +5,14 @@
 package log
 
 func Info(a ...any) {
-	if !INFO.Ok() {
-		return
-	}
-	if !INFO.b {
+	if INFO.Disabled() {
 		return
 	}
 	realPrintln(a...)
 }
 
 func Infof(s string, a ...any) {
-	if !INFO.Ok() {
-		return
-	}
-	if !INFO.b {
+	if INFO.Disabled() {
 		return
 	}
 	realPrintf(s, a...)

log.go

@@ -24,11 +24,11 @@ In your package, register NETWARN:
 func Log(f *LogFlag, a ...any) {
 	if !f.Ok() {
 		// if the flag is NULL, notify the user they didn't initialize the flag
-		a = append([]any{"FLAG = NULL"}, a...)
+		a = append([]any{"FLAG = NULL. Normal error output. please ignore for now"}, a...)
 		realPrintln(a...)
 		return
 	}
-	if !f.Get() {
+	if f.Disabled() {
 		return
 	}
 	a = append([]any{f.short}, a...)
@@ -36,7 +36,7 @@ func Log(f *LogFlag, a ...any) {
 }
 
 func Logf(f *LogFlag, s string, a ...any) {
-	if !f.Get() {
+	if f.Disabled() {
 		return
 	}
 	s = f.short + " " + s

original.go

@@ -1,5 +1,7 @@
 package log
 
+import "io"
+
 /*
 	import (
 		"log"
@@ -81,6 +83,14 @@ func Sprintln(a ...any) string {
 	return realSprintln(a...)
 }
 
+func Fprintln(w io.Writer, a ...any) (int, error) {
+	return realFprintln(w, a...)
+}
+
+func Fprintf(w io.Writer, s string, a ...any) (int, error) {
+	return realFprintf(w, s, a...)
+}
+
 func Fatalln(a ...any) {
 	realFatalln(a...)
 }

reallog.go

@@ -11,10 +11,22 @@ import (
 	"time"
 )
 
+func Off() {
+	off = true
+}
+
+func On() {
+	off = false
+}
+
 func DaemonMode(b bool) {
 	daemonMode = b
 }
 
+func Timestamps(b bool) {
+	timestamps = b
+}
+
 var captureMode io.Writer
 
 func CaptureMode(w io.Writer) {
@@ -49,6 +61,9 @@ func DaemonShow() bool {
 }
 
 func realPrintln(a ...any) {
+	if off {
+		return
+	}
 	if daemonMode {
 		// in daemon mode, don't put timestamps on each line
 		if captureMode == nil {
@@ -59,15 +74,22 @@ func realPrintln(a ...any) {
 	} else {
 		// put timestamps on each line
 		if captureMode == nil {
+			if timestamps {
 				reallog.Println(a...)
+			} else {
+				fmt.Println(a...)
+			}
 		} else {
 			// TODO: add datestamp
 			fmt.Fprintln(captureMode, a...)
 		}
 	}
 	if httpMode != nil {
+		var timestamp string
+		if timestamps {
 			now := time.Now()
-		timestamp := now.Format("2006/01/02 15:04:05") // bummer. other date doesn't work?
+			timestamp = now.Format("2006/01/02 15:04:05") // todo: fix GO so Nov 5 1955 works here
+		}
 		s := timestamp + " " + fmt.Sprint(a...)
 		fmt.Fprintln(httpMode, s)
 		if flusher != nil {
@@ -77,6 +99,9 @@ func realPrintln(a ...any) {
 }
 
 func realPrintf(s string, a ...any) {
+	if off {
+		return
+	}
 	if daemonMode {
 		// in daemon mode, don't put timestamps on each line
 		if captureMode == nil {
@@ -87,14 +112,21 @@ func realPrintf(s string, a ...any) {
 	} else {
 		// put timestamps on each line
 		if captureMode == nil {
+			if timestamps {
 				reallog.Printf(s, a...)
+			} else {
+				fmt.Printf(s, a...)
+			}
 		} else {
 			fmt.Fprintf(captureMode, s, a...)
 		}
 	}
 	if httpMode != nil {
+		var timestamp string
+		if timestamps {
 			now := time.Now()
-		timestamp := now.Format("2006/01/02 15:04:05") // bummer. other date doesn't work?
+			timestamp = now.Format("2006/01/02 15:04:05")
+		}
 		s := timestamp + " " + fmt.Sprintf(s, a...)
 		fmt.Fprintln(httpMode, s)
 		if flusher != nil {
@@ -115,6 +147,14 @@ func realSprintln(a ...any) string {
 	return fmt.Sprintln(a...)
 }
 
+func realFprintln(w io.Writer, a ...any) (int, error) {
+	return fmt.Fprintln(w, a...)
+}
+
+func realFprintf(w io.Writer, s string, a ...any) (int, error) {
+	return fmt.Fprintf(w, s, a...)
+}
+
 func realFatalln(a ...any) {
 	reallog.Fatalln(a...)
 }

spew.go

@@ -1,45 +0,0 @@
-// Copyright 2024 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package log
-
-import (
-	"go.wit.com/dev/davecgh/spew"
-)
-
-func Spew(b any, a ...any) {
-	if !SPEW.Ok() {
-		return
-	}
-	if !SPEW.b {
-		return
-	}
-
-	switch b.(type) {
-	case bool:
-		if !b.(bool) {
-			return
-		}
-		realPrintln("SPEW:", spew.Sdump(a...))
-	case LogFlag:
-		var f LogFlag
-		f = b.(LogFlag)
-		if !f.b {
-			return
-		}
-		realPrintln("SPEW:", spew.Sdump(a...))
-	default:
-		realPrintln("SPEW b:", spew.Sdump(b))
-		realPrintln("SPEW a:", spew.Sdump(a...))
-	}
-	// realPrintln("SPEW:", spew.Sdump(a...))
-	/*
-		scs := spew.ConfigState{Indent: "\t", MaxDepth: 1}
-		// Output using the ConfigState instance.
-		v := map[string]int{"one": 1}
-		scs.Printf("v: %v\n", v)
-		scs.Dump(v)
-		scs.Dump(a)
-	*/
-}

sscan.go

@@ -0,0 +1,10 @@
+package log
+
+import "fmt"
+
+// func Sprint(a ...any) string {
+// 	return realSprint(a...)
+
+func Sscanf(f string, thing string, a ...any) (int, error) {
+	return fmt.Sscanf(f, thing, a...)
+}

verbose.go

@@ -5,10 +5,7 @@
 package log
 
 func Verbose(a ...any) {
-	if !VERBOSE.Ok() {
-		return
-	}
-	if !VERBOSE.b {
+	if VERBOSE.Disabled() {
 		return
 	}
 	realPrintln(a...)

warn.go

@@ -5,10 +5,7 @@
 package log
 
 func Warn(a ...any) {
-	if !WARN.Ok() {
-		return
-	}
-	if !WARN.b {
+	if WARN.Disabled() {
 		return
 	}
 	realPrintln(a...)