databricks-cli/libs/filer/completer/completer.go

96 lines
2.3 KiB
Go

package completer
import (
"context"
"path"
"path/filepath"
"strings"
"github.com/databricks/cli/libs/filer"
"github.com/spf13/cobra"
)
type completer struct {
ctx context.Context
// The filer to use for completing remote or local paths.
filer filer.Filer
// CompletePath will only return directories when onlyDirs is true.
onlyDirs bool
// Prefix to prepend to completions.
prefix string
// Whether the path is local or remote. If the path is local we use the `filepath`
// package for path manipulation. Otherwise we use the `path` package.
isLocalPath bool
}
// General completer that takes a filer to complete remote paths when TAB-ing through a path.
func New(ctx context.Context, filer filer.Filer, onlyDirs bool) *completer {
return &completer{ctx: ctx, filer: filer, onlyDirs: onlyDirs, prefix: "", isLocalPath: true}
}
func (c *completer) SetPrefix(p string) {
c.prefix = p
}
func (c *completer) SetIsLocalPath(i bool) {
c.isLocalPath = i
}
func (c *completer) CompletePath(p string) ([]string, cobra.ShellCompDirective, error) {
trailingSeparator := "/"
joinFunc := path.Join
// Use filepath functions if we are in a local path.
if c.isLocalPath {
joinFunc = filepath.Join
trailingSeparator = string(filepath.Separator)
}
// If the user is TAB-ing their way through a path and the
// path ends in a trailing slash, we should list nested directories.
// If the path is incomplete, however, then we should list adjacent
// directories.
dirPath := p
if !strings.HasSuffix(p, trailingSeparator) {
dirPath = path.Dir(p)
}
entries, err := c.filer.ReadDir(c.ctx, dirPath)
if err != nil {
return nil, cobra.ShellCompDirectiveError, err
}
completions := []string{}
for _, entry := range entries {
if c.onlyDirs && !entry.IsDir() {
continue
}
// Join directory path and entry name
completion := joinFunc(dirPath, entry.Name())
// Prepend prefix if it has been set
if c.prefix != "" {
completion = joinFunc(c.prefix, completion)
}
// Add trailing separator for directories.
if entry.IsDir() {
completion += trailingSeparator
}
completions = append(completions, completion)
}
// If the path is local, we add the dbfs:/ prefix suggestion as an option
if c.isLocalPath {
completions = append(completions, "dbfs:/")
}
return completions, cobra.ShellCompDirectiveNoSpace, err
}