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package shell
import ( "context" "fmt" "io" "math"
"github.com/chrislusf/seaweedfs/weed/filer2" "github.com/chrislusf/seaweedfs/weed/pb/filer_pb" )
func init() { Commands = append(Commands, &commandFsCat{}) }
type commandFsCat struct { }
func (c *commandFsCat) Name() string { return "fs.cat" }
func (c *commandFsCat) Help() string { return `stream the file content on to the screen
fs.cat /dir/file_name fs.cat http://<filer_server>:<port>/dir/file_name
` }
func (c *commandFsCat) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
input := findInputDirectory(args)
filerServer, filerPort, path, err := commandEnv.parseUrl(input) if err != nil { return err }
ctx := context.Background()
if commandEnv.isDirectory(ctx, filerServer, filerPort, path) { return fmt.Errorf("%s is a directory", path) }
dir, name := filer2.FullPath(path).DirAndName()
return commandEnv.withFilerClient(ctx, filerServer, filerPort, func(client filer_pb.SeaweedFilerClient) error {
request := &filer_pb.LookupDirectoryEntryRequest{ Name: name, Directory: dir, } respLookupEntry, err := client.LookupDirectoryEntry(ctx, request) if err != nil { return err }
return filer2.StreamContent(commandEnv.MasterClient, writer, respLookupEntry.Entry.Chunks, 0, math.MaxInt32)
})
}
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