Added color theme support

service-monitor/logscmd.go

@@ -40,6 +40,8 @@ func logsForm() (tview.Primitive, error) {
 	errLogView := tview.NewTextView()
 	errLogView.ScrollToEnd()
 
+	list.SetMainTextColor(tcell.GetColor(theme.Colors["Service"]))
+	list.SetSecondaryTextColor(tcell.GetColor(theme.Colors["Description"]))
 	list.
 		SetDoneFunc(func() {
 			app.SetFocus(logView)

service-monitor/main.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"os"
+	"strings"
 
 	"github.com/rivo/tview"
 	"github.com/spf13/cobra"
@@ -22,10 +23,26 @@ var (
 	apperr error
 	app    = tview.NewApplication()
 	menu   = NewMenu(app)
+
 	search   string
+	themeArg string
 )
 
+func parseTheme() {
+	switch strings.ToLower(themeArg) {
+	case "ice":
+		theme = IceTheme
+	case "terminal":
+		theme = TerminalTheme
+	default:
+		panic("no such theme: " + themeArg)
+	}
+}
+
 func main() {
+	RootCmd.PersistentFlags().StringVar(&themeArg, "theme", "terminal", "color scheme (ice, terminal)")
+	cobra.OnInitialize(parseTheme)
+
 	if err := RootCmd.Execute(); err != nil {
 		os.Exit(-1)
 	}

service-monitor/menu.go

@@ -44,10 +44,10 @@ func (m *Menu) Draw(screen tcell.Screen) {
 	x++
 
 	for _, i := range m.Items {
-		tview.Print(screen, tcell.KeyNames[i.Shortcut], x, y, width-2, tview.AlignLeft, tcell.ColorYellow)
+		tview.Print(screen, tcell.KeyNames[i.Shortcut], x, y, width-2, tview.AlignLeft, tcell.GetColor(theme.Colors["Shortcut"]))
 		x += 3
 
-		tview.Print(screen, i.Text, x, y, width, tview.AlignLeft, tcell.ColorTeal)
+		tview.Print(screen, i.Text, x, y, width, tview.AlignLeft, tcell.GetColor(theme.Colors["Menu"]))
 		x += runewidth.StringWidth(i.Text) + 2
 	}
 }

service-monitor/pipe.go

@@ -98,7 +98,7 @@ func pipeReader(r *LogPipe, w io.Writer) {
 }
 
 func logFormatter(entry *sdjournal.JournalEntry) (string, error) {
-	color := "gray"
+	color := theme.Colors["Message"]
 	switch entry.Fields["PRIORITY"] {
 	case "0":
 		fallthrough
@@ -107,14 +107,17 @@ func logFormatter(entry *sdjournal.JournalEntry) (string, error) {
 	case "2":
 		fallthrough
 	case "3":
-		color = "red"
+		color = theme.Colors["Error"]
 	case "4":
-		color = "darkred"
+		color = theme.Colors["Warning"]
 	case "5":
-		color = "silver"
+		color = theme.Colors["Notice"]
 	}
-	return fmt.Sprintf("[green]%s [blue]%s [%s]%s\n",
+
+	return fmt.Sprintf("[%s]%s [%s]%s [%s]%s\n",
+		theme.Colors["Timestamp"],
 		time.Unix(0, int64(entry.RealtimeTimestamp)*int64(time.Microsecond)).Format("Jan 02 15:04:05"),
+		theme.Colors["Service"],
 		entry.Fields["SYSLOG_IDENTIFIER"],
 		color,
 		entry.Fields["MESSAGE"]), nil

service-monitor/servicescmd.go

@@ -37,6 +37,9 @@ func servicesForm() (tview.Primitive, error) {
 	pages := tview.NewPages()
 	confirmDialog := tview.NewModal()
 	list := NewServicesView()
+	list.SetMainTextColor(tcell.GetColor(theme.Colors["Service"]))
+	list.SetSecondaryTextColor(tcell.GetColor(theme.Colors["Description"]))
+
 	err := list.loadModel(false, activeOnly)
 	if err != nil {
 		return nil, err

service-monitor/theme.go

@@ -0,0 +1,40 @@
+package main
+
+type Theme struct {
+	Name   string
+	Colors map[string]string
+}
+
+var (
+	IceTheme = Theme{
+		Name: "Ice",
+		Colors: map[string]string{
+			"Error":       "#aacdee",
+			"Warning":     "#7997d6",
+			"Notice":      "#5b73b4",
+			"Message":     "gray",
+			"Timestamp":   "#003d6b",
+			"Service":     "#d5d8f0",
+			"Shortcut":    "#00ffdf",
+			"Menu":        "#85e7d2",
+			"Description": "#003d6b",
+		},
+	}
+
+	TerminalTheme = Theme{
+		Name: "Terminal",
+		Colors: map[string]string{
+			"Error":       "red",
+			"Warning":     "darkred",
+			"Notice":      "silver",
+			"Message":     "gray",
+			"Timestamp":   "green",
+			"Service":     "blue",
+			"Shortcut":    "yellow",
+			"Menu":        "teal",
+			"Description": "green",
+		},
+	}
+
+	theme = TerminalTheme
+)