feat: add a text output encoding for the stats provide command

core/commands/stat_provide.go

@@ -2,7 +2,11 @@ package commands
 
 import (
 	"fmt"
+	"io"
+	"text/tabwriter"
+	"time"
 
+	humanize "github.com/dustin/go-humanize"
 	cmds "github.com/ipfs/go-ipfs-cmds"
 	"github.com/ipfs/go-ipfs/core/commands/cmdenv"
 
@@ -46,6 +50,40 @@ This interface is not stable and may change from release to release.
 
 		return nil
 	},
-	Encoders: cmds.EncoderMap{},
-	Type:     batched.BatchedProviderStats{},
+	Encoders: cmds.EncoderMap{
+		cmds.Text: cmds.MakeTypedEncoder(func(req *cmds.Request, w io.Writer, s *batched.BatchedProviderStats) error {
+			wtr := tabwriter.NewWriter(w, 1, 2, 1, ' ', 0)
+			defer wtr.Flush()
+
+			fmt.Fprintf(wtr, "TotalProvides:\t%s\n", humanNumber(s.TotalProvides))
+			fmt.Fprintf(wtr, "AvgProvideDuration:\t%s\n", humanDuration(s.AvgProvideDuration))
+			fmt.Fprintf(wtr, "LastReprovideDuration:\t%s\n", humanDuration(s.LastReprovideDuration))
+			fmt.Fprintf(wtr, "LastReprovideBatchSize:\t%s\n", humanNumber(s.LastReprovideBatchSize))
+			return nil
+		}),
+	},
+	Type: batched.BatchedProviderStats{},
+}
+
+func humanDuration(val time.Duration) string {
+	return val.Truncate(time.Microsecond).String()
+}
+
+func humanNumber(n int) string {
+	nf := float64(n)
+	str := humanSI(nf, 0)
+	fullStr := humanFull(nf, 0)
+	if str != fullStr {
+		return fmt.Sprintf("%s\t(%s)", str, fullStr)
+	}
+	return str
+}
+
+func humanSI(val float64, decimals int) string {
+	v, unit := humanize.ComputeSI(val)
+	return fmt.Sprintf("%s%s", humanFull(v, decimals), unit)
+}
+
+func humanFull(val float64, decimals int) string {
+	return humanize.CommafWithDigits(val, decimals)
 }