first code version

go.mod

@@ -0,0 +1,3 @@
+module git.bjphoster.com/b.pedini/go-basic-logger
+
+go 1.17

logger.go

@@ -0,0 +1,82 @@
+// Copyright (c) 2022 Bryan Joshua Pedini
+// License: GPL-3 · See LICENSE for more details
+package gobasiclogger
+
+import (
+	"log"
+	"os"
+)
+
+type Logger struct {
+	logLevel int
+}
+
+func (l *Logger) Initialize(level *string) {
+	if level == nil {
+		*level = os.Getenv("LOGLEVEL")
+	}
+	if _stringInArray(*level, []string{"debug", "DEBUG", "dbg", "DBG"}) {
+		l.logLevel = 7
+	} else if _stringInArray(*level, []string{"notice", "NOTICE", "not", "NOT"}) {
+		l.logLevel = 6
+	} else if _stringInArray(*level, []string{"info", "INFO", "inf", "INF"}) {
+		l.logLevel = 5
+	} else if _stringInArray(*level, []string{"warning", "WARNING", "warn", "WARN", "wrn", "WRN"}) {
+		l.logLevel = 4
+	} else if _stringInArray(*level, []string{"error", "ERROR", "err", "ERR"}) {
+		l.logLevel = 3
+	} else if _stringInArray(*level, []string{"critical", "CRITICAL", "crt", "CRT"}) {
+		l.logLevel = 2
+	} else if _stringInArray(*level, []string{"fatal", "FATAL", "fat", "FAT"}) {
+		l.logLevel = 1
+	}
+}
+
+func (l *Logger) Debug(i ...interface{}) {
+	i = append([]interface{}{"[DBG]"}, i...)
+	if l.logLevel > 6 {
+		log.Println(i...)
+	}
+}
+
+func (l *Logger) Notice(i ...interface{}) {
+	i = append([]interface{}{"[NOT]"}, i...)
+	if l.logLevel > 5 {
+		log.Println(i...)
+	}
+}
+
+func (l *Logger) Info(i ...interface{}) {
+	i = append([]interface{}{"[INF]"}, i...)
+	if l.logLevel > 4 {
+		log.Println(i...)
+	}
+}
+
+func (l *Logger) Warning(i ...interface{}) {
+	i = append([]interface{}{"[WRN]"}, i...)
+	if l.logLevel > 3 {
+		log.Println(i...)
+	}
+}
+
+func (l *Logger) Error(i ...interface{}) {
+	i = append([]interface{}{"[ERR]"}, i...)
+	if l.logLevel > 2 {
+		log.Println(i...)
+	}
+}
+
+func (l *Logger) Fatal(i ...interface{}) {
+	i = append([]interface{}{"[FAT]"}, i...)
+	if l.logLevel > 1 {
+		log.Println(i...)
+	}
+}
+
+func (l *Logger) Critical(i ...interface{}) {
+	i = append([]interface{}{"[CRT]"}, i...)
+	if l.logLevel > 0 {
+		log.Println(i...)
+	}
+}

stringinarray.go

@@ -0,0 +1,14 @@
+// Copyright (c) 2022 Bryan Joshua Pedini
+// License: GPL-3 · See LICENSE for more details
+package gobasiclogger
+
+import "strings"
+
+func _stringInArray(s string, l []string) bool {
+	for _, e := range l {
+		if strings.Compare(s, e) == 0 {
+			return true
+		}
+	}
+	return false
+}