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main.go
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package main
import (
"log"
"log/syslog"
"time"
"flag"
"fmt"
"github.com/jroimartin/gocui"
"github.com/kr/beanstalk"
)
var (
conn *beanstalk.Conn
cTubes Tubes
watch = false
stop = make(chan bool)
host = flag.String("host", "127.0.0.1:11300", "Beanstalk host address")
refreshRate = flag.Int("refresh", 1, "Refresh rate of the tube list (seconds)")
debug = flag.Bool("debug", false, "Enable debug logging")
logWriter *syslog.Writer
cmdMode = false
)
const (
cmdPrefix = "(%s) : "
)
func init() {
//Set the inital page to 1
cTubes.Page = 1
}
func main() {
var err error
logWriter, err = syslog.New(syslog.LOG_INFO, "bsw")
if err != nil {
log.Fatal(err)
}
log.SetOutput(logWriter)
flag.Parse()
if conn, err = beanstalk.Dial("tcp", *host); err != nil {
log.Fatal(err)
}
debugLog("Connected to beanstalk")
//Use all tubes by default
cTubes.UseAll()
g := gocui.NewGui()
if err := g.Init(); err != nil {
log.Fatal(err)
}
defer g.Close()
if err := setKeyBindings(g); err != nil {
log.Fatal(err)
}
debugLog("Set keybindings")
g.SetLayout(setLayout)
debugLog("Set layout")
g.Editor = gocui.EditorFunc(cmdEditor)
debugLog("Set editor")
g.Cursor = true
go watchTubes(g)
debugLog("Starting main loop")
if err := g.MainLoop(); err != nil && err != gocui.ErrQuit {
log.Fatal(err)
}
}
func cmdEditor(v *gocui.View, key gocui.Key, ch rune, mod gocui.Modifier) {
switch {
case ch != 0 && mod == 0:
v.EditWrite(ch)
case key == gocui.KeySpace:
v.EditWrite(' ')
case key == gocui.KeyBackspace || key == gocui.KeyBackspace2:
cx, _ := v.Cursor()
if cx > len(fmt.Sprintf(cmdPrefix, cTubes.Selected)) {
v.EditDelete(true)
}
case key == gocui.KeyDelete:
v.EditDelete(false)
}
}
func setLayout(g *gocui.Gui) error {
maxX, maxY := g.Size()
if v, err := g.SetView("tubes", 0, 0, maxX-1, maxY-3); err != nil {
if err != gocui.ErrUnknownView {
return err
}
//Initialise the view settings
v.Highlight = true
v.Wrap = true
v.Editable = false
v.Autoscroll = false
PrintTubeList(v)
//Move the cursor to the first tube
if err = MoveTubeCursor(g, 0, 1); err != nil {
return err
}
}
if v, err := g.SetView("menu", 0, maxY-3, maxX-1, maxY-1); err != nil {
if err != gocui.ErrUnknownView {
return err
}
PrintMenu(v)
}
return nil
}
func reloadMenu(g *gocui.Gui) error {
v, err := g.View("menu")
if err != nil {
return err
}
v.Clear()
PrintMenu(v)
if cmdMode {
prefix := fmt.Sprintf(cmdPrefix, cTubes.Selected)
if err = v.SetCursor(len(prefix), 0); err != nil {
return err
}
}
_, err = g.SetViewOnTop("menu")
return err
}
func reloadTubes(g *gocui.Gui) error {
v, err := g.View("tubes")
if err != nil {
return err
}
//Clear the current tube list
v.Clear()
//Print the new tube list
PrintTubeList(v)
//Refresh the cursor
return RefreshCursor(g)
}
func watchTubes(g *gocui.Gui) {
for {
select {
case <-stop:
watch = false
return
case <-time.After(time.Duration(*refreshRate) * time.Second):
//Pause reloads while we're in cmd mode, this could cause weird issues
//with tubes disappearing when a command is run
if !cmdMode {
watch = true
//Refresh tube list
g.Execute(func(g *gocui.Gui) error {
return reloadTubes(g)
})
_ = reloadMenu(g)
}
}
}
}
func debugLog(s ...interface{}) {
if *debug {
log.Print(s...)
}
}