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add path prefix to ObjectStorage.Iterator (#23332)

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Support to iterator subdirectory in ObjectStorage for
ObjectStorage.Iterator method.

It's required for https://github.com/go-gitea/gitea/pull/22738 to make
artifact files cleanable.

---------

Co-authored-by: Jason Song <i@wolfogre.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
This commit is contained in:
FuXiaoHei 2023-03-13 18:23:51 +08:00 committed by GitHub
parent 757b4c17e9
commit cdc9e91750
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
9 changed files with 67 additions and 15 deletions
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6
cmd/dump.go
View file

@ -250,7 +250,7 @@ func runDump(ctx *cli.Context) error {
if ctx.IsSet("skip-lfs-data") && ctx.Bool("skip-lfs-data") {
log.Info("Skip dumping LFS data")
} else if err := storage.LFS.IterateObjects(func(objPath string, object storage.Object) error {
} else if err := storage.LFS.IterateObjects("", func(objPath string, object storage.Object) error {
info, err := object.Stat()
if err != nil {
return err
@ -351,7 +351,7 @@ func runDump(ctx *cli.Context) error {
if ctx.IsSet("skip-attachment-data") && ctx.Bool("skip-attachment-data") {
log.Info("Skip dumping attachment data")
} else if err := storage.Attachments.IterateObjects(func(objPath string, object storage.Object) error {
} else if err := storage.Attachments.IterateObjects("", func(objPath string, object storage.Object) error {
info, err := object.Stat()
if err != nil {
return err
@ -364,7 +364,7 @@ func runDump(ctx *cli.Context) error {
if ctx.IsSet("skip-package-data") && ctx.Bool("skip-package-data") {
log.Info("Skip dumping package data")
} else if err := storage.Packages.IterateObjects(func(objPath string, object storage.Object) error {
} else if err := storage.Packages.IterateObjects("", func(objPath string, object storage.Object) error {
info, err := object.Stat()
if err != nil {
return err

2
modules/doctor/storage.go
View file

@ -31,7 +31,7 @@ func commonCheckStorage(ctx context.Context, logger log.Logger, autofix bool, op
totalSize, orphanedSize := int64(0), int64(0)
var pathsToDelete []string
if err := opts.storer.IterateObjects(func(p string, obj storage.Object) error {
if err := opts.storer.IterateObjects("", func(p string, obj storage.Object) error {
defer obj.Close()
totalCount++

2
modules/storage/helper.go
View file

@ -90,6 +90,6 @@ func (s discardStorage) URL(_, _ string) (*url.URL, error) {
return nil, fmt.Errorf("%s", s)
}
func (s discardStorage) IterateObjects(_ func(string, Object) error) error {
func (s discardStorage) IterateObjects(_ string, _ func(string, Object) error) error {
return fmt.Errorf("%s", s)
}

2
modules/storage/helper_test.go
View file

@ -42,7 +42,7 @@ func Test_discardStorage(t *testing.T) {
assert.Errorf(t, err, string(tt))
}
{
err := tt.IterateObjects(func(_ string, _ Object) error { return nil })
err := tt.IterateObjects("", func(_ string, _ Object) error { return nil })
assert.Error(t, err, string(tt))
}
})

8
modules/storage/local.go
View file

@ -127,8 +127,12 @@ func (l *LocalStorage) URL(path, name string) (*url.URL, error) {
}
// IterateObjects iterates across the objects in the local storage
func (l *LocalStorage) IterateObjects(fn func(path string, obj Object) error) error {
return filepath.WalkDir(l.dir, func(path string, d os.DirEntry, err error) error {
func (l *LocalStorage) IterateObjects(prefix string, fn func(path string, obj Object) error) error {
dir := l.dir
if prefix != "" {
dir = filepath.Join(l.dir, util.CleanPath(prefix))
}
return filepath.WalkDir(dir, func(path string, d os.DirEntry, err error) error {
if err != nil {
return err
}

42
modules/storage/local_test.go
View file

@ -4,6 +4,10 @@
package storage
import (
"bytes"
"context"
"os"
"path/filepath"
"testing"
"github.com/stretchr/testify/assert"
@ -50,3 +54,41 @@ func TestBuildLocalPath(t *testing.T) {
})
}
}
func TestLocalStorageIterator(t *testing.T) {
dir := filepath.Join(os.TempDir(), "TestLocalStorageIteratorTestDir")
l, err := NewLocalStorage(context.Background(), LocalStorageConfig{Path: dir})
assert.NoError(t, err)
testFiles := [][]string{
{"a/1.txt", "a1"},
{"/a/1.txt", "aa1"}, // same as above, but with leading slash that will be trim
{"b/1.txt", "b1"},
{"b/2.txt", "b2"},
{"b/3.txt", "b3"},
{"b/x 4.txt", "bx4"},
}
for _, f := range testFiles {
_, err = l.Save(f[0], bytes.NewBufferString(f[1]), -1)
assert.NoError(t, err)
}
expectedList := map[string][]string{
"a": {"a/1.txt"},
"b": {"b/1.txt", "b/2.txt", "b/3.txt", "b/x 4.txt"},
"": {"a/1.txt", "b/1.txt", "b/2.txt", "b/3.txt", "b/x 4.txt"},
"/": {"a/1.txt", "b/1.txt", "b/2.txt", "b/3.txt", "b/x 4.txt"},
"a/b/../../a": {"a/1.txt"},
}
for dir, expected := range expectedList {
count := 0
err = l.IterateObjects(dir, func(path string, f Object) error {
defer f.Close()
assert.Contains(t, expected, path)
count++
return nil
})
assert.NoError(t, err)
assert.Equal(t, count, len(expected))
}
}

12
modules/storage/minio.go
View file

@ -209,12 +209,18 @@ func (m *MinioStorage) URL(path, name string) (*url.URL, error) {
}
// IterateObjects iterates across the objects in the miniostorage
func (m *MinioStorage) IterateObjects(fn func(path string, obj Object) error) error {
func (m *MinioStorage) IterateObjects(prefix string, fn func(path string, obj Object) error) error {
opts := minio.GetObjectOptions{}
lobjectCtx, cancel := context.WithCancel(m.ctx)
defer cancel()
basePath := m.basePath
if prefix != "" {
basePath = m.buildMinioPath(prefix)
}
for mObjInfo := range m.client.ListObjects(lobjectCtx, m.bucket, minio.ListObjectsOptions{
Prefix: m.basePath,
Prefix: basePath,
Recursive: true,
}) {
object, err := m.client.GetObject(lobjectCtx, m.bucket, mObjInfo.Key, opts)
@ -223,7 +229,7 @@ func (m *MinioStorage) IterateObjects(fn func(path string, obj Object) error) er
}
if err := func(object *minio.Object, fn func(path string, obj Object) error) error {
defer object.Close()
return fn(strings.TrimPrefix(mObjInfo.Key, m.basePath), &minioObject{object})
return fn(strings.TrimPrefix(mObjInfo.Key, basePath), &minioObject{object})
}(object, fn); err != nil {
return convertMinioErr(err)
}

4
modules/storage/storage.go
View file

@ -65,7 +65,7 @@ type ObjectStorage interface {
Stat(path string) (os.FileInfo, error)
Delete(path string) error
URL(path, name string) (*url.URL, error)
IterateObjects(func(path string, obj Object) error) error
IterateObjects(path string, iterator func(path string, obj Object) error) error
}
// Copy copies a file from source ObjectStorage to dest ObjectStorage
@ -87,7 +87,7 @@ func Copy(dstStorage ObjectStorage, dstPath string, srcStorage ObjectStorage, sr
// Clean delete all the objects in this storage
func Clean(storage ObjectStorage) error {
return storage.IterateObjects(func(path string, obj Object) error {
return storage.IterateObjects("", func(path string, obj Object) error {
_ = obj.Close()
return storage.Delete(path)
})

4
tests/test_utils.go
View file

@ -201,7 +201,7 @@ func PrepareTestEnv(t testing.TB, skip ...int) func() {
lfsFixtures, err := storage.NewStorage("", storage.LocalStorageConfig{Path: path.Join(filepath.Dir(setting.AppPath), "tests/gitea-lfs-meta")})
assert.NoError(t, err)
assert.NoError(t, storage.Clean(storage.LFS))
assert.NoError(t, lfsFixtures.IterateObjects(func(path string, _ storage.Object) error {
assert.NoError(t, lfsFixtures.IterateObjects("", func(path string, _ storage.Object) error {
_, err := storage.Copy(storage.LFS, path, lfsFixtures, path)
return err
}))
@ -258,7 +258,7 @@ func ResetFixtures(t *testing.T) {
lfsFixtures, err := storage.NewStorage("", storage.LocalStorageConfig{Path: path.Join(filepath.Dir(setting.AppPath), "tests/gitea-lfs-meta")})
assert.NoError(t, err)
assert.NoError(t, storage.Clean(storage.LFS))
assert.NoError(t, lfsFixtures.IterateObjects(func(path string, _ storage.Object) error {
assert.NoError(t, lfsFixtures.IterateObjects("", func(path string, _ storage.Object) error {
_, err := storage.Copy(storage.LFS, path, lfsFixtures, path)
return err
}))