Windows: Fix stats CLI

Signed-off-by: John Howard <jhoward@microsoft.com>

cli/command/container/stats.go

@@ -80,6 +80,16 @@ func runStats(dockerCli *command.DockerCli, opts *statsOptions) error {
 		}
 	}
 
+	// Get the daemonOSType if not set already
+	if daemonOSType == "" {
+		svctx := context.Background()
+		sv, err := dockerCli.Client().ServerVersion(svctx)
+		if err != nil {
+			return err
+		}
+		daemonOSType = sv.Os
+	}
+
 	// waitFirst is a WaitGroup to wait first stat data's reach for each container
 	waitFirst := &sync.WaitGroup{}
 
@@ -184,7 +194,6 @@ func runStats(dockerCli *command.DockerCli, opts *statsOptions) error {
 		Output: dockerCli.Out(),
 		Format: formatter.NewStatsFormat(f, daemonOSType),
 	}
-
 	cleanScreen := func() {
 		if !opts.noStream {
 			fmt.Fprint(dockerCli.Out(), "\033[2J")

cli/command/formatter/stats.go

@@ -10,17 +10,16 @@ import (
 const (
 	winOSType                  = "windows"
 	defaultStatsTableFormat    = "table {{.Container}}\t{{.CPUPerc}}\t{{.MemUsage}}\t{{.MemPerc}}\t{{.NetIO}}\t{{.BlockIO}}\t{{.PIDs}}"
-	winDefaultStatsTableFormat = "table {{.Container}}\t{{.CPUPerc}}\t{{{.MemUsage}}\t{.NetIO}}\t{{.BlockIO}}"
-	emptyStatsTableFormat      = "Waiting for statistics..."
-
-	containerHeader  = "CONTAINER"
-	cpuPercHeader    = "CPU %"
-	netIOHeader      = "NET I/O"
-	blockIOHeader    = "BLOCK I/O"
-	winMemPercHeader = "PRIV WORKING SET"  // Used only on Window
-	memPercHeader    = "MEM %"             // Used only on Linux
-	memUseHeader     = "MEM USAGE / LIMIT" // Used only on Linux
-	pidsHeader       = "PIDS"              // Used only on Linux
+	winDefaultStatsTableFormat = "table {{.Container}}\t{{.CPUPerc}}\t{{.MemUsage}}\t{{.NetIO}}\t{{.BlockIO}}"
+
+	containerHeader = "CONTAINER"
+	cpuPercHeader   = "CPU %"
+	netIOHeader     = "NET I/O"
+	blockIOHeader   = "BLOCK I/O"
+	memPercHeader   = "MEM %"             // Used only on Linux
+	winMemUseHeader = "PRIV WORKING SET"  // Used only on Windows
+	memUseHeader    = "MEM USAGE / LIMIT" // Used only on Linux
+	pidsHeader      = "PIDS"              // Used only on Linux
 )
 
 // StatsEntry represents represents the statistics data collected from a container
@@ -151,18 +150,22 @@ func (c *containerStatsContext) CPUPerc() string {
 }
 
 func (c *containerStatsContext) MemUsage() string {
-	c.AddHeader(memUseHeader)
-	if c.s.IsInvalid || c.s.OSType == winOSType {
+	header := memUseHeader
+	if c.s.OSType == winOSType {
+		header = winMemUseHeader
+	}
+	c.AddHeader(header)
+	if c.s.IsInvalid {
 		return fmt.Sprintf("-- / --")
 	}
+	if c.s.OSType == winOSType {
+		return fmt.Sprintf("%s", units.BytesSize(c.s.Memory))
+	}
 	return fmt.Sprintf("%s / %s", units.BytesSize(c.s.Memory), units.BytesSize(c.s.MemoryLimit))
 }
 
 func (c *containerStatsContext) MemPerc() string {
 	header := memPercHeader
-	if c.s.OSType == winOSType {
-		header = winMemPercHeader
-	}
 	c.AddHeader(header)
 	if c.s.IsInvalid {
 		return fmt.Sprintf("--")