pages-server/debug-stepper/stepper.go
2021-07-13 10:28:06 +02:00

68 lines
1.4 KiB
Go

package debug_stepper
import (
"fmt"
"os"
"strings"
"time"
)
var Enabled = strings.HasSuffix(os.Args[0], ".test") || os.Getenv("DEBUG") == "1"
var Logger = func(s string, i ...interface{}) {
fmt.Printf(s, i...)
}
type Stepper struct {
Name string
Start time.Time
LastStep time.Time
Completion time.Time
}
func Start(name string) *Stepper {
if !Enabled {
return nil
}
t := time.Now()
Logger("%s: started at %s\n", name, t.Format(time.RFC3339))
return &Stepper{
Name: name,
Start: t,
LastStep: t,
}
}
func (s *Stepper) Debug(text string) {
if !Enabled {
return
}
t := time.Now()
Logger("%s: %s (at %s, %s since last step, %s since start)\n", s.Name, text, t.Format(time.RFC3339), t.Sub(s.LastStep).String(), t.Sub(s.Start).String())
}
func (s *Stepper) Step(description string) {
if !Enabled {
return
}
if s.Completion != (time.Time{}) {
Logger("%s: already completed all tasks.\n")
return
}
t := time.Now()
Logger("%s: completed %s at %s (%s)\n", s.Name, description, t.Format(time.RFC3339), t.Sub(s.LastStep).String())
s.LastStep = t
}
func (s *Stepper) Complete() {
if !Enabled {
return
}
if s.Completion != (time.Time{}) {
Logger("%s: already completed all tasks.\n")
return
}
t := time.Now()
Logger("%s: completed all tasks at %s (%s since last step; total time: %s)\n", s.Name, t.Format(time.RFC3339), t.Sub(s.LastStep).String(), t.Sub(s.Start).String())
s.Completion = t
}