1 files changed, 61 insertions, 0 deletions
diff --git a/tools/worker_table.go b/tools/worker_table.go
new file mode 100644
index 00000000..4aeb6ae7
--- /dev/null
+++ b/tools/worker_table.go
@@ -0,0 +1,61 @@
+package tools
+
+import (
+	"io"
+	"strconv"
+	"time"
+
+	"github.com/dustin/go-humanize"
+	"github.com/fatih/color"
+	"github.com/olekukonko/tablewriter"
+)
+
+// WorkerTable renders table with information about rr server workers.
+func WorkerTable(writer io.Writer, workers []ProcessState) *tablewriter.Table {
+	tw := tablewriter.NewWriter(writer)
+	tw.SetHeader([]string{"PID", "Status", "Execs", "Memory", "Created"})
+	tw.SetColMinWidth(0, 7)
+	tw.SetColMinWidth(1, 9)
+	tw.SetColMinWidth(2, 7)
+	tw.SetColMinWidth(3, 7)
+	tw.SetColMinWidth(4, 18)
+
+	for key := range workers {
+		tw.Append([]string{
+			strconv.Itoa(workers[key].Pid),
+			renderStatus(workers[key].Status),
+			renderJobs(workers[key].NumJobs),
+			humanize.Bytes(workers[key].MemoryUsage),
+			renderAlive(time.Unix(0, workers[key].Created)),
+		})
+	}
+
+	return tw
+}
+
+func renderStatus(status string) string {
+	switch status {
+	case "inactive":
+		return color.YellowString("inactive")
+	case "ready":
+		return color.CyanString("ready")
+	case "working":
+		return color.GreenString("working")
+	case "invalid":
+		return color.YellowString("invalid")
+	case "stopped":
+		return color.RedString("stopped")
+	case "errored":
+		return color.RedString("errored")
+	}
+
+	return status
+}
+
+func renderJobs(number int64) string {
+	return humanize.Comma(number)
+}
+
+func renderAlive(t time.Time) string {
+	return humanize.RelTime(t, time.Now(), "ago", "")
+}