mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-01-19 02:48:24 +00:00
69 lines
1.4 KiB
Go
69 lines
1.4 KiB
Go
package shell
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import (
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"context"
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"fmt"
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"io"
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"math"
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"github.com/joeslay/seaweedfs/weed/filer2"
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"github.com/joeslay/seaweedfs/weed/pb/filer_pb"
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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/
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fs.cat /dir/file_name
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fs.cat /dir/file_prefix
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fs.cat http://<filer_server>:<port>/dir/
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fs.cat http://<filer_server>:<port>/dir/file_name
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fs.cat http://<filer_server>:<port>/dir/file_prefix
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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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input := findInputDirectory(args)
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filerServer, filerPort, path, err := commandEnv.parseUrl(input)
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if err != nil {
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return err
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}
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ctx := context.Background()
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if commandEnv.isDirectory(ctx, filerServer, filerPort, path) {
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return fmt.Errorf("%s is a directory", path)
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}
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dir, name := filer2.FullPath(path).DirAndName()
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return commandEnv.withFilerClient(ctx, filerServer, filerPort, 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 := client.LookupDirectoryEntry(ctx, request)
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if err != nil {
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return err
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}
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return filer2.StreamContent(commandEnv.MasterClient, writer, respLookupEntry.Entry.Chunks, 0, math.MaxInt32)
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})
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}
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