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stats.go
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/
stats.go
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package commands // import "github.com/SUSE/groot-btrfs/store/filesystems/btrfs/drax/commands"
import (
"os"
"code.cloudfoundry.org/commandrunner/linux_command_runner"
"code.cloudfoundry.org/lager"
"github.com/SUSE/groot-btrfs/store/filesystems/btrfs/drax/metrix"
"github.com/urfave/cli"
)
var StatsCommand = cli.Command{
Name: "stats",
Usage: "stats --volume-path <path> [--force-sync]",
Description: "Get stats for a volume",
Flags: []cli.Flag{
cli.StringFlag{
Name: "volume-path",
Usage: "Path to the volume",
},
cli.BoolFlag{
Name: "force-sync",
Usage: "Force BTRFS to update stats immediately",
},
},
Action: func(ctx *cli.Context) error {
logger := lager.NewLogger("drax")
logger.RegisterSink(lager.NewWriterSink(os.Stderr, lager.DEBUG))
commandRunner := linux_command_runner.New()
metrix := metrix.NewBtrfsStats(ctx.GlobalString("btrfs-bin"), commandRunner)
stats, err := metrix.VolumeStats(
logger,
ctx.String("volume-path"),
ctx.Bool("force-sync"),
)
if err != nil {
logger.Error("fetching-volume-stats", err)
return cli.NewExitError(err.Error(), 1)
}
if _, err := os.Stdout.Write(stats); err != nil {
logger.Error("encoding-stats", err)
return cli.NewExitError(err.Error(), 1)
}
return nil
},
}