seaweedfs/weed/shell/command_bucket_list.go

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package shell
import (
"context"
"flag"
"fmt"
"io"
"math"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
)
func init() {
Commands = append(Commands, &commandBucketList{})
}
type commandBucketList struct {
}
func (c *commandBucketList) Name() string {
return "bucket.list"
}
func (c *commandBucketList) Help() string {
return `list all buckets
`
}
func (c *commandBucketList) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
bucketCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
if err = bucketCommand.Parse(args); err != nil {
return nil
}
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_, parseErr := commandEnv.parseUrl(findInputDirectory(bucketCommand.Args()))
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if parseErr != nil {
return parseErr
}
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var filerBucketsPath string
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filerBucketsPath, err = readFilerBucketsPath(commandEnv)
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if err != nil {
return fmt.Errorf("read buckets: %v", err)
}
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err = filer_pb.List(commandEnv, filerBucketsPath, "", func(entry *filer_pb.Entry, isLast bool) error {
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if entry.Attributes.Replication == "" || entry.Attributes.Replication == "000" {
fmt.Fprintf(writer, " %s\n", entry.Name)
} else {
fmt.Fprintf(writer, " %s\t\t\treplication: %s\n", entry.Name, entry.Attributes.Replication)
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}
return nil
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}, "", false, math.MaxUint32)
if err != nil {
return fmt.Errorf("list buckets under %v: %v", filerBucketsPath, err)
}
return err
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}
func readFilerBucketsPath(filerClient filer_pb.FilerClient) (filerBucketsPath string, err error) {
err = filerClient.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{})
if err != nil {
return fmt.Errorf("get filer configuration: %v", err)
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}
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filerBucketsPath = resp.DirBuckets
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return nil
})
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return filerBucketsPath, err
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}