// updateFooter updates the footer contents based on any encountered errors.
func updateFooter(ctx *cli.Context, err error, footer *termui.Par) {
// Generate the basic footer
refresh := time.Duration(ctx.Int(monitorCommandRefreshFlag.Name)) * time.Second
footer.Text = fmt.Sprintf("Press Ctrl+C to quit. Refresh interval: %v.", refresh)
footer.TextFgColor = termui.Theme().ParTextFg | termui.AttrBold
// Append any encountered errors
if err != nil {
footer.Text = fmt.Sprintf("Error: %v.", err)
footer.TextFgColor = termui.ColorRed | termui.AttrBold
}
}
// Init creates widgets, sets sizes and labels.
func (t *TermUI) Init(data UIData) error {
err := termui.Init()
if err != nil {
return err
}
termui.UseTheme("helloworld")
theme := termui.Theme()
theme.BodyBg = termui.ColorDefault
theme.BlockBg = termui.ColorDefault
theme.BorderBg = termui.ColorDefault
theme.BorderFg = termui.ColorBlack
theme.BorderLabelTextBg = termui.ColorDefault
theme.BorderLabelTextFg = termui.ColorCyan
theme.ListItemBg = termui.ColorDefault
theme.ParTextBg = termui.ColorDefault
termui.SetTheme(theme)
t.Title = func() *termui.Par {
p := termui.NewPar("")
p.Height = 3
p.TextFgColor = termui.ColorWhite
p.Border.Label = "Services Monitor"
p.Border.FgColor = termui.ColorBlack
return p
}()
t.Status = func() *termui.Par {
p := termui.NewPar("")
p.Height = 3
p.TextFgColor = termui.ColorWhite
p.Border.Label = "Status"
p.Border.LabelFgColor = termui.ColorCyan
p.Border.FgColor = termui.ColorBlack
return p
}()
t.Services = func() *termui.List {
list := termui.NewList()
list.ItemFgColor = termui.ColorYellow
list.Border.LabelFgColor = termui.ColorCyan | termui.AttrBold
list.Border.Label = "Services"
list.Height = len(data.Services) + 2
return list
}()
t.Lists = make([]*termui.List, len(data.Vars))
for i, name := range data.Vars {
list := termui.NewList()
list.ItemFgColor = colorByKind(name.Kind())
list.Border.Label = name.Short()
list.Border.LabelFgColor = termui.ColorCyan
list.Height = len(data.Services) + 2
t.Lists[i] = list
}
makeSparkline := func(name VarName) *termui.Sparklines {
var sparklines []termui.Sparkline
for _, service := range data.Services {
spl := termui.NewSparkline()
spl.Height = 1
spl.TitleColor = termui.ColorGreen
spl.LineColor = termui.ColorGreen
spl.Title = service.Name
sparklines = append(sparklines, spl)
}
s := termui.NewSparklines(sparklines...)
s.Height = 2*len(data.Services) + 2
s.HasBorder = true
s.Border.Label = fmt.Sprintf("Monitoring %s", name.Long())
return s
}
t.Sparkline1 = makeSparkline(data.Vars[0])
if len(data.Vars) > 1 {
t.Sparkline2 = makeSparkline(data.Vars[1])
}
t.Relayout()
return nil
}
// Metrics prints out metrics for a given service or if the service is not
// specified, metrics for the entire environment are printed.
func Metrics(serviceLabel string, jsonFlag bool, csvFlag bool, sparkFlag bool, streamFlag bool, mins int, settings *models.Settings) {
if streamFlag && (jsonFlag || csvFlag || mins != 1) {
fmt.Println("--stream cannot be used with a custom format and multiple records")
os.Exit(1)
}
var singleRetriever func(mins int, settings *models.Settings) *models.Metrics
if serviceLabel != "" {
service := helpers.RetrieveServiceByLabel(serviceLabel, settings)
if service == nil {
fmt.Printf("Could not find a service with the label \"%s\"\n", serviceLabel)
os.Exit(1)
}
settings.ServiceID = service.ID
singleRetriever = helpers.RetrieveServiceMetrics
}
var transformer Transformer
redraw := make(chan bool)
if jsonFlag {
transformer = Transformer{
SingleRetriever: singleRetriever,
DataTransformer: &JSONTransformer{},
}
} else if csvFlag {
buffer := &bytes.Buffer{}
transformer = Transformer{
SingleRetriever: singleRetriever,
DataTransformer: &CSVTransformer{
HeadersWritten: false,
GroupMode: serviceLabel == "",
Buffer: buffer,
Writer: csv.NewWriter(buffer),
},
}
} else if sparkFlag {
// the spark lines interface stays up until closed by the user, so
// we might as well keep updating it as long as it is there
streamFlag = true
mins = 60
err := ui.Init()
if err != nil {
fmt.Println(err.Error())
os.Exit(1)
}
defer ui.Close()
ui.UseTheme("helloworld")
p := ui.NewPar("PRESS q TO QUIT")
p.HasBorder = false
p.TextFgColor = ui.Theme().SparklineTitle
ui.Body.AddRows(
ui.NewRow(ui.NewCol(12, 0, p)),
)
transformer = Transformer{
SingleRetriever: singleRetriever,
DataTransformer: &SparkTransformer{
Redraw: redraw,
SparkLines: make(map[string]*ui.Sparklines),
},
}
} else {
transformer = Transformer{
SingleRetriever: singleRetriever,
DataTransformer: &TextTransformer{},
}
}
transformer.GroupRetriever = helpers.RetrieveEnvironmentMetrics
transformer.Stream = streamFlag
transformer.GroupMode = serviceLabel == ""
transformer.Mins = mins
transformer.settings = settings
helpers.SignIn(settings)
if sparkFlag {
go transformer.process()
ui.Body.Align()
ui.Render(ui.Body)
quit := make(chan bool)
go maintainSparkLines(redraw, quit)
<-quit
} else {
transformer.process()
}
}
// Init creates widgets, sets sizes and labels.
func (t *TermUISingle) Init(data UIData) error {
err := termui.Init()
if err != nil {
return err
}
t.Sparklines = make(map[VarName]*termui.Sparkline)
termui.UseTheme("helloworld")
theme := termui.Theme()
theme.BodyBg = termui.ColorDefault
theme.BlockBg = termui.ColorDefault
theme.BorderBg = termui.ColorDefault
theme.BorderFg = termui.ColorBlack
theme.BorderLabelTextBg = termui.ColorDefault
theme.BorderLabelTextFg = termui.ColorCyan
theme.ListItemBg = termui.ColorDefault
theme.ParTextBg = termui.ColorDefault
termui.SetTheme(theme)
t.Title = func() *termui.Par {
p := termui.NewPar("")
p.Height = 3
p.BgColor = termui.ColorDefault
p.TextBgColor = termui.ColorDefault
p.TextFgColor = termui.ColorWhite
p.Border.Label = "Services Monitor"
p.Border.LabelBgColor = termui.ColorDefault
p.Border.LabelFgColor = termui.ColorCyan
p.Border.FgColor = termui.ColorBlack
p.Border.BgColor = termui.ColorDefault
return p
}()
t.Status = func() *termui.Par {
p := termui.NewPar("")
p.Height = 3
p.BgColor = termui.ColorDefault
p.TextBgColor = termui.ColorDefault
p.TextFgColor = termui.ColorWhite
p.Border.Label = "Status"
p.Border.LabelBgColor = termui.ColorDefault
p.Border.LabelFgColor = termui.ColorCyan
p.Border.FgColor = termui.ColorBlack
p.Border.BgColor = termui.ColorDefault
return p
}()
t.Pars = make([]*termui.Par, len(data.Vars))
for i, name := range data.Vars {
par := termui.NewPar("")
par.BgColor = termui.ColorDefault
par.TextFgColor = colorByKind(name.Kind())
par.TextBgColor = termui.ColorDefault
par.Border.FgColor = termui.ColorBlack
par.Border.BgColor = termui.ColorDefault
par.Border.Label = name.Short()
par.Border.LabelFgColor = termui.ColorCyan
par.Border.LabelBgColor = termui.ColorDefault
par.Height = 3
t.Pars[i] = par
}
var sparklines []termui.Sparkline
for _, name := range data.Vars {
spl := termui.NewSparkline()
spl.Height = 1
spl.TitleColor = colorByKind(name.Kind())
spl.LineColor = colorByKind(name.Kind())
spl.Title = name.Long()
sparklines = append(sparklines, spl)
}
t.Sparkline = func() *termui.Sparklines {
s := termui.NewSparklines(sparklines...)
s.Height = 2*len(sparklines) + 2
s.HasBorder = true
s.BgColor = termui.ColorDefault
s.Border.FgColor = termui.ColorBlack
s.Border.BgColor = termui.ColorDefault
s.Border.Label = fmt.Sprintf("Monitoring")
s.Border.LabelFgColor = termui.ColorCyan
s.Border.LabelBgColor = termui.ColorDefault
return s
}()
t.Relayout()
return nil
}