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pkg/directory: remove unused MoveToSubdir() utility

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This utility was added in 442b45628e as part of
user-namespaces, and first used in 44e1023a93 to
set up the daemon root, and move the existing content;
44e1023a93/daemon/daemon_experimental.go (L68-L71)

A later iteration no longer _moved_ the existing root directory, and removed the
use of `directory.MoveToSubdir()` e8532023f2

It looks like there's no external consumers of this utility, so we should be
save to remove it.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2022-10-05 11:11:26 +02:00
parent bd6217bb74
commit 26659d5eb8
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GPG key ID: 76698F39D527CE8C
2 changed files with 1 additions and 71 deletions
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24
pkg/directory/directory.go
View file

@ -1,28 +1,6 @@
package directory // import "github.com/docker/docker/pkg/directory"
import (
"context"
"os"
"path/filepath"
)
// MoveToSubdir moves all contents of a directory to a subdirectory underneath the original path
func MoveToSubdir(oldpath, subdir string) error {
infos, err := os.ReadDir(oldpath)
if err != nil {
return err
}
for _, info := range infos {
if info.Name() != subdir {
oldName := filepath.Join(oldpath, info.Name())
newName := filepath.Join(oldpath, subdir, info.Name())
if err := os.Rename(oldName, newName); err != nil {
return err
}
}
}
return nil
}
import "context"
// Size walks a directory tree and returns its total size in bytes.
func Size(ctx context.Context, dir string) (int64, error) {

48
pkg/directory/directory_test.go
View file

@ -3,9 +3,6 @@ package directory // import "github.com/docker/docker/pkg/directory"
import (
"context"
"os"
"path/filepath"
"reflect"
"sort"
"testing"
)
@ -144,51 +141,6 @@ func TestSizeFileAndNestedDirectoryNonempty(t *testing.T) {
}
}
// Test migration of directory to a subdir underneath itself
func TestMoveToSubdir(t *testing.T) {
var outerDir, subDir string
var err error
if outerDir, err = os.MkdirTemp(os.TempDir(), "TestMoveToSubdir"); err != nil {
t.Fatalf("failed to create directory: %v", err)
}
if subDir, err = os.MkdirTemp(outerDir, "testSub"); err != nil {
t.Fatalf("failed to create subdirectory: %v", err)
}
// write 4 temp files in the outer dir to get moved
filesList := []string{"a", "b", "c", "d"}
for _, fName := range filesList {
if file, err := os.Create(filepath.Join(outerDir, fName)); err != nil {
t.Fatalf("couldn't create temp file %q: %v", fName, err)
} else {
file.WriteString(fName)
file.Close()
}
}
if err = MoveToSubdir(outerDir, filepath.Base(subDir)); err != nil {
t.Fatalf("Error during migration of content to subdirectory: %v", err)
}
// validate that the files were moved to the subdirectory
infos, err := os.ReadDir(subDir)
if err != nil {
t.Fatal(err)
}
if len(infos) != 4 {
t.Fatalf("Should be four files in the subdir after the migration: actual length: %d", len(infos))
}
var results []string
for _, info := range infos {
results = append(results, info.Name())
}
sort.Strings(results)
if !reflect.DeepEqual(filesList, results) {
t.Fatalf("Results after migration do not equal list of files: expected: %v, got: %v", filesList, results)
}
}
// Test a non-existing directory
func TestSizeNonExistingDirectory(t *testing.T) {
if _, err := Size(context.Background(), "/thisdirectoryshouldnotexist/TestSizeNonExistingDirectory"); err == nil {