zenity/internal/zenutil/osascripts/progress.gojs

var app = Application.currentApplication()
app.includeStandardAdditions = true
app.activate()

ObjC.import('stdlib')
ObjC.import('readline')

{{- if .Total}}
  Progress.totalUnitCount = {{.Total}}
{{- end}}
{{- if .Description}}
  Progress.description = {{json .Description}}
{{- end}}

while (true) {
  var s
  try {
    s = $.readline('')
  } catch (e) {
    if (e.errorNumber === -128) $.exit(1)
    break
  }

  if (s.indexOf('#') === 0) {
    Progress.additionalDescription = s.slice(1)
    continue
  }

  var i = parseInt(s)
  if (i >= 0 && Progress.totalUnitCount > 0) {
    Progress.completedUnitCount = i
    continue
  }
}