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|
package shell
import (
"context"
"fmt"
"github.com/chrislusf/seaweedfs/weed/filer2"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"io"
"os"
"os/user"
"strconv"
"strings"
)
func init() {
commands = append(commands, &commandFsLs{})
}
type commandFsLs struct {
}
func (c *commandFsLs) Name() string {
return "fs.ls"
}
func (c *commandFsLs) Help() string {
return `list all files under a directory
fs.ls [-l] [-a] http://<filer_server>:<port>/dir/
fs.ls [-l] [-a] http://<filer_server>:<port>/dir/file_name
fs.ls [-l] [-a] http://<filer_server>:<port>/dir/file_prefix
`
}
func (c *commandFsLs) Do(args []string, commandEnv *commandEnv, writer io.Writer) (err error) {
var isLongFormat, showHidden bool
for _, arg := range args {
switch arg {
case "-a":
showHidden = true
case "-l":
isLongFormat = true
}
}
input := ""
if len(args) > 0 {
input = args[len(args)-1]
if strings.HasPrefix(input, "-") {
input = ""
}
}
filerServer, filerPort, path, err := commandEnv.parseUrl(input)
if err != nil {
return err
}
if input == "" && !strings.HasSuffix(path, "/") {
path = path + "/"
}
dir, name := filer2.FullPath(path).DirAndName()
// println("path", path, "dir", dir, "name", name)
if strings.HasSuffix(path, "/") {
if path == "/" {
dir, name = "/", ""
} else {
dir, name = path[0 : len(path)-1], ""
}
}
ctx := context.Background()
return commandEnv.withFilerClient(ctx, filerServer, filerPort, func(client filer_pb.SeaweedFilerClient) error {
return paginateOneDirectory(ctx, writer, client, dir, name, 1000, isLongFormat, showHidden)
})
}
func paginateOneDirectory(ctx context.Context, writer io.Writer, client filer_pb.SeaweedFilerClient, dir, name string, paginateSize int, isLongFormat, showHidden bool) (err error) {
entryCount := 0
paginatedCount := -1
startFromFileName := ""
for paginatedCount == -1 || paginatedCount == paginateSize {
resp, listErr := client.ListEntries(ctx, &filer_pb.ListEntriesRequest{
Directory: dir,
Prefix: name,
StartFromFileName: startFromFileName,
InclusiveStartFrom: false,
Limit: uint32(paginateSize),
})
if listErr != nil {
err = listErr
return
}
paginatedCount = len(resp.Entries)
for _, entry := range resp.Entries {
if !showHidden && strings.HasPrefix(entry.Name, ".") {
continue
}
entryCount++
if isLongFormat {
fileMode := os.FileMode(entry.Attributes.FileMode)
userName, groupNames := entry.Attributes.UserName, entry.Attributes.GroupName
if userName == "" {
if user, userErr := user.LookupId(strconv.Itoa(int(entry.Attributes.Uid))); userErr == nil {
userName = user.Username
}
}
groupName := ""
if len(groupNames) > 0 {
groupName = groupNames[0]
}
if groupName == "" {
if group, groupErr := user.LookupGroupId(strconv.Itoa(int(entry.Attributes.Gid))); groupErr == nil {
groupName = group.Name
}
}
if dir == "/" {
// just for printing
dir = ""
}
fmt.Fprintf(writer, "%s %3d %s %s %6d %s/%s\n",
fileMode, len(entry.Chunks),
userName, groupName,
filer2.TotalSize(entry.Chunks), dir, entry.Name)
} else {
fmt.Fprintf(writer, "%s\n", entry.Name)
}
startFromFileName = entry.Name
}
}
if isLongFormat {
fmt.Fprintf(writer, "total %d\n", entryCount)
}
return
}
|
