diff options
Diffstat (limited to 'weed/shell/command_fs_cat.go')
| -rw-r--r-- | weed/shell/command_fs_cat.go | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/weed/shell/command_fs_cat.go b/weed/shell/command_fs_cat.go new file mode 100644 index 000000000..09e86d657 --- /dev/null +++ b/weed/shell/command_fs_cat.go @@ -0,0 +1,69 @@ +package shell + +import ( + "context" + "fmt" + "io" + "math" + + "github.com/chrislusf/seaweedfs/weed/filer2" + "github.com/chrislusf/seaweedfs/weed/pb/filer_pb" + "github.com/chrislusf/seaweedfs/weed/server" +) + +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/ + fs.cat /dir/file_name + fs.cat /dir/file_prefix + fs.cat http://<filer_server>:<port>/dir/ + fs.cat http://<filer_server>:<port>/dir/file_name + fs.cat http://<filer_server>:<port>/dir/file_prefix +` +} + +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 weed_server.StreamContent(commandEnv.masterClient, writer, respLookupEntry.Entry.Chunks, 0, math.MaxInt32) + + }) + +} |
