databricks-cli/cmd/fs/helpers.go

106 lines
2.7 KiB
Go

package fs
import (
"context"
"fmt"
"runtime"
"strings"
"github.com/databricks/cli/cmd/root"
"github.com/databricks/cli/libs/filer"
"github.com/databricks/cli/libs/filer/completer"
"github.com/spf13/cobra"
)
func filerForPath(ctx context.Context, fullPath string) (filer.Filer, string, error) {
// Split path at : to detect any file schemes
parts := strings.SplitN(fullPath, ":", 2)
// If no scheme is specified, then local path
if len(parts) < 2 {
f, err := filer.NewLocalClient("")
return f, fullPath, err
}
// On windows systems, paths start with a drive letter. If the scheme
// is a single letter and the OS is windows, then we conclude the path
// is meant to be a local path.
if runtime.GOOS == "windows" && len(parts[0]) == 1 {
f, err := filer.NewLocalClient("")
return f, fullPath, err
}
if parts[0] != "dbfs" {
return nil, "", fmt.Errorf("invalid scheme: %s", parts[0])
}
path := parts[1]
w := root.WorkspaceClient(ctx)
// If the specified path has the "Volumes" prefix, use the Files API.
if strings.HasPrefix(path, "/Volumes/") {
f, err := filer.NewFilesClient(w, "/")
return f, path, err
}
// The file is a dbfs file, and uses the DBFS APIs
f, err := filer.NewDbfsClient(w, "/")
return f, path, err
}
const dbfsPrefix string = "dbfs:"
func isDbfsPath(path string) bool {
return strings.HasPrefix(path, dbfsPrefix)
}
type validArgs struct {
mustWorkspaceClientFunc func(cmd *cobra.Command, args []string) error
filerForPathFunc func(ctx context.Context, fullPath string) (filer.Filer, string, error)
pathArgCount int
onlyDirs bool
}
func newValidArgs() *validArgs {
return &validArgs{
mustWorkspaceClientFunc: root.MustWorkspaceClient,
filerForPathFunc: filerForPath,
pathArgCount: 1,
onlyDirs: false,
}
}
func (v *validArgs) Validate(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
cmd.SetContext(root.SkipPrompt(cmd.Context()))
if len(args) >= v.pathArgCount {
return nil, cobra.ShellCompDirectiveNoFileComp
}
err := v.mustWorkspaceClientFunc(cmd, args)
if err != nil {
return nil, cobra.ShellCompDirectiveError
}
filer, toCompletePath, err := v.filerForPathFunc(cmd.Context(), toComplete)
if err != nil {
return nil, cobra.ShellCompDirectiveError
}
completer := completer.New(cmd.Context(), filer, v.onlyDirs)
// Dbfs should have a prefix and always use the "/" separator
isDbfsPath := isDbfsPath(toComplete)
if isDbfsPath {
completer.SetPrefix(dbfsPrefix)
completer.SetIsLocalPath(false)
}
completions, directive, err := completer.CompletePath(toCompletePath)
if err != nil {
return nil, cobra.ShellCompDirectiveError
}
return completions, directive
}