mirror of
https://github.com/chrislusf/seaweedfs
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9f9ef1340c
streaming mode would create separate grpc connections for each call. this is to ensure the long poll connections are properly closed.
65 lines
1.3 KiB
Go
65 lines
1.3 KiB
Go
package shell
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import (
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"fmt"
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"io"
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"math"
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"github.com/chrislusf/seaweedfs/weed/filer"
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"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
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"github.com/chrislusf/seaweedfs/weed/util"
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)
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func init() {
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Commands = append(Commands, &commandFsCat{})
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}
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type commandFsCat struct {
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}
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func (c *commandFsCat) Name() string {
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return "fs.cat"
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}
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func (c *commandFsCat) Help() string {
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return `stream the file content on to the screen
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fs.cat /dir/file_name
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`
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}
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func (c *commandFsCat) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
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path, err := commandEnv.parseUrl(findInputDirectory(args))
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if err != nil {
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return err
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}
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if commandEnv.isDirectory(path) {
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return fmt.Errorf("%s is a directory", path)
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}
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dir, name := util.FullPath(path).DirAndName()
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return commandEnv.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {
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request := &filer_pb.LookupDirectoryEntryRequest{
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Name: name,
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Directory: dir,
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}
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respLookupEntry, err := filer_pb.LookupEntry(client, request)
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if err != nil {
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return err
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}
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if len(respLookupEntry.Entry.Content) > 0 {
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_, err = writer.Write(respLookupEntry.Entry.Content)
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return err
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}
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return filer.StreamContent(commandEnv.MasterClient, writer, respLookupEntry.Entry.Chunks, 0, math.MaxInt64)
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})
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}
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