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package shell
import (
"fmt"
"io"
"github.com/seaweedfs/seaweedfs/weed/filer"
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
"github.com/seaweedfs/seaweedfs/weed/util"
)
func init() {
Commands = append(Commands, &commandFsDu{})
}
type commandFsDu struct {
}
func (c *commandFsDu) Name() string {
return "fs.du"
}
func (c *commandFsDu) Help() string {
return `show disk usage
fs.du /dir
fs.du /dir/file_name
fs.du /dir/file_prefix
`
}
func (c *commandFsDu) IsResourceHeavy() bool {
return false
}
func (c *commandFsDu) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
path, err := commandEnv.parseUrl(findInputDirectory(args))
if err != nil {
return err
}
if commandEnv.isDirectory(path) {
path = path + "/"
}
var blockCount, byteCount uint64
dir, name := util.FullPath(path).DirAndName()
blockCount, byteCount, err = duTraverseDirectory(writer, commandEnv, dir, name)
if name == "" && err == nil {
fmt.Fprintf(writer, "block:%4d\tlogical size:%10d\t%s\n", blockCount, byteCount, dir)
}
return
}
func duTraverseDirectory(writer io.Writer, filerClient filer_pb.FilerClient, dir, name string) (blockCount, byteCount uint64, err error) {
err = filer_pb.ReadDirAllEntries(filerClient, util.FullPath(dir), name, func(entry *filer_pb.Entry, isLast bool) error {
var fileBlockCount, fileByteCount uint64
if entry.IsDirectory {
subDir := fmt.Sprintf("%s/%s", dir, entry.Name)
if dir == "/" {
subDir = "/" + entry.Name
}
numBlock, numByte, err := duTraverseDirectory(writer, filerClient, subDir, "")
if err == nil {
blockCount += numBlock
byteCount += numByte
}
} else {
fileBlockCount = uint64(len(entry.GetChunks()))
fileByteCount = filer.FileSize(entry)
blockCount += fileBlockCount
byteCount += fileByteCount
}
if name != "" && !entry.IsDirectory {
fmt.Fprintf(writer, "block:%4d\tlogical size:%10d\t%s/%s\n", fileBlockCount, fileByteCount, dir, entry.Name)
}
return nil
})
return
}