Print status without formatting if not to terminal

ui/terminal/status.go

@@ -30,7 +30,6 @@ func (p *Provider) Status(statuses []ui.ServiceStatus) {
 		configSet[configPath] = struct{}{}
 	}
 
-	table := tablewriter.NewWriter(os.Stdout)
 	headings := []string{
 		"PID",
 		"Name",
@@ -47,17 +46,17 @@ func (p *Provider) Status(statuses []ui.ServiceStatus) {
 		headings = append(headings, "Config File")
 	}
 
-	table.SetHeader(headings)
-	table.SetAlignment(tablewriter.ALIGN_LEFT)
-
 	outputInfo, _ := os.Stdout.Stat()
-	if (outputInfo.Mode() & os.ModeCharDevice) != os.ModeCharDevice {
-		table.SetBorder(false)
-		table.SetRowLine(false)
-		table.SetHeaderLine(false)
-		table.SetColumnSeparator("\t")
+	var table tablePrinter
+	if (outputInfo.Mode() & os.ModeCharDevice) == os.ModeCharDevice {
+		tableWriter := tablewriter.NewWriter(os.Stdout)
+		tableWriter.SetAlignment(tablewriter.ALIGN_LEFT)
+		table = tableWriter
+	} else {
+		table = NewPlainPrinter(os.Stdout)
 	}
 
+	table.SetHeader(headings)
 	for index, serviceStatus := range statuses {
 		service := serviceStatus.Service()
 		status := serviceStatus.Status()

ui/terminal/table.go

@@ -0,0 +1,47 @@
+package terminal
+
+import (
+	"os"
+	"strings"
+)
+
+type tablePrinter interface {
+	SetHeader(header []string)
+	Append(columns []string)
+	Render()
+}
+
+type plainPrinter struct {
+	out     *os.File
+	headers []string
+	rows    [][]string
+}
+
+func NewPlainPrinter(out *os.File) *plainPrinter {
+	p := new(plainPrinter)
+	p.out = out
+	return p
+}
+
+func (p *plainPrinter) SetHeader(header []string) {
+	p.headers = header
+}
+
+func (p *plainPrinter) Append(columns []string) {
+	p.rows = append(p.rows, columns)
+}
+
+func (p *plainPrinter) Render() {
+	for _, col := range p.headers {
+		p.out.WriteString(strings.ToUpper(col))
+		p.out.WriteString("\t")
+	}
+	p.out.WriteString("\n")
+	for _, row := range p.rows {
+		for _, col := range row {
+			p.out.WriteString(col)
+			p.out.WriteString("\t")
+		}
+		p.out.WriteString("\n")
+	}
+}