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|
package log
import (
"errors"
)
var INFO bool = true
var WARN bool = true
var ERROR bool = true
var VERBOSE bool = false
// var SPEW bool = false
var SPEW LogFlag
type LogFlag struct {
B bool
Name string
Subsystem string
Desc string
}
var registered map[string][]string
var flags []*LogFlag
func init() {
registered = make(map[string][]string)
SPEW.B = false
SPEW.Name = "SPEW"
SPEW.Subsystem = "log"
SPEW.Desc = "Enable log.Spew()"
// register the default flags used by this log package
registered["log"] = []string{"SPEW","INFO", "WARN", "ERROR", "VERBOSE"}
}
func All(b bool) {
Set("SPEW", b)
Set("INFO", b)
Set("WARN", b)
Set("ERROR", b)
Set("VERBOSE", b)
for _, f := range flags {
Warn("All() ", "(" + f.Subsystem + ")", f.Name, "=", f.B, ":", f.Desc)
f.B = b
Warn("All() f.B is now", f.B)
}
}
// this bypasses all checks and _always_ logs the info to STDOUT
// is this a bad idea? Probably not....
func ListFlags() map[string][]string {
Log(true, "ListFlags() registered =", registered)
for _, f := range flags {
Log(true, "ListFlags() ", "(" + f.Subsystem + ")", f.Name, "=", f.B, ":", f.Desc)
}
return registered
}
func Set(flag string, b bool) {
switch flag {
case "INFO":
INFO = b
case "WARN":
WARN = b
case "SPEW":
SPEW.B = b
case "ERROR":
ERROR = b
case "VERBOSE":
VERBOSE = b
default:
Error(errors.New("unknown flag"), "Flag name sent:", flag)
}
}
func Get(flag string) bool {
switch flag {
case "INFO":
return INFO
case "WARN":
return WARN
case "SPEW":
return SPEW.B
case "ERROR":
return ERROR
case "VERBOSE":
return VERBOSE
default:
Error(errors.New("unknown flag"), "Flag name sent:", flag)
}
return false
}
// register a variable name from a subsystem
// inspired by Alex Flint
func (f *LogFlag) Register() {
Info("log.Register() ", f)
flags = append(flags,f)
}
// register a variable name from a subsystem
// this is used for custom log flags
func Register(subsystem string, name string, b *bool) {
Info("log.Register() got subsystem", subsystem, "with name =", name, "bool value =", b)
registered[subsystem] = append(registered[subsystem], name)
}
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