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package hotline
import (
"io"
"io/fs"
"os"
"path/filepath"
"time"
"github.com/stretchr/testify/mock"
)
// FileStore is the storage backend for the file library (the FileRoot that clients browse,
// upload, and download). It is deliberately expressed in terms of io/fs interface types rather
// than *os.File so that non-filesystem backends (e.g. an object store such as S3/R2) can
// implement it. OSFileStore is the default, filesystem-backed implementation.
//
// Symlink/ReadLink exist only to support Hotline aliases and have no analog on object stores;
// such backends may return errors.ErrUnsupported, and callers degrade gracefully.
type FileStore interface {
// Reads
Open(name string) (io.ReadCloser, error)
Stat(name string) (fs.FileInfo, error)
ReadFile(name string) ([]byte, error)
ReadDir(name string) ([]fs.DirEntry, error)
ReadLink(name string) (string, error)
Walk(root string, fn filepath.WalkFunc) error
// Writes
Create(name string) (io.WriteCloser, error)
OpenFile(name string, flag int, perm fs.FileMode) (io.WriteCloser, error)
WriteFile(name string, data []byte, perm fs.FileMode) error
Mkdir(name string, perm fs.FileMode) error
// Mutations
Rename(oldpath string, newpath string) error
Remove(name string) error
RemoveAll(path string) error
Symlink(oldname, newname string) error
}
// OSFileStore is a FileStore backed by the local filesystem via the os and filepath packages.
type OSFileStore struct{}
var _ FileStore = (*OSFileStore)(nil)
func (*OSFileStore) Mkdir(name string, perm fs.FileMode) error {
return os.Mkdir(name, perm)
}
func (*OSFileStore) Stat(name string) (fs.FileInfo, error) {
return os.Stat(name)
}
func (*OSFileStore) Open(name string) (io.ReadCloser, error) {
f, err := os.Open(name)
if err != nil {
return nil, err
}
return f, nil
}
func (*OSFileStore) ReadDir(name string) ([]fs.DirEntry, error) {
return os.ReadDir(name)
}
func (*OSFileStore) ReadLink(name string) (string, error) {
return os.Readlink(name)
}
func (*OSFileStore) Walk(root string, fn filepath.WalkFunc) error {
return filepath.Walk(root, fn)
}
func (*OSFileStore) Symlink(oldname, newname string) error {
return os.Symlink(oldname, newname)
}
func (*OSFileStore) RemoveAll(name string) error {
return os.RemoveAll(name)
}
func (*OSFileStore) Remove(name string) error {
return os.Remove(name)
}
func (*OSFileStore) Create(name string) (io.WriteCloser, error) {
f, err := os.Create(name)
if err != nil {
return nil, err
}
return f, nil
}
func (*OSFileStore) WriteFile(name string, data []byte, perm fs.FileMode) error {
return os.WriteFile(name, data, perm)
}
func (*OSFileStore) Rename(oldpath string, newpath string) error {
return os.Rename(oldpath, newpath)
}
func (*OSFileStore) ReadFile(name string) ([]byte, error) {
return os.ReadFile(name)
}
func (*OSFileStore) OpenFile(name string, flag int, perm fs.FileMode) (io.WriteCloser, error) {
f, err := os.OpenFile(name, flag, perm)
if err != nil {
return nil, err
}
return f, nil
}
type MockFileStore struct {
mock.Mock
}
var _ FileStore = (*MockFileStore)(nil)
func (mfs *MockFileStore) Mkdir(name string, perm fs.FileMode) error {
args := mfs.Called(name, perm)
return args.Error(0)
}
func (mfs *MockFileStore) Stat(name string) (fs.FileInfo, error) {
args := mfs.Called(name)
if args.Get(0) == nil {
return nil, args.Error(1)
}
return args.Get(0).(fs.FileInfo), args.Error(1)
}
func (mfs *MockFileStore) Open(name string) (io.ReadCloser, error) {
args := mfs.Called(name)
f, _ := args.Get(0).(io.ReadCloser)
return f, args.Error(1)
}
func (mfs *MockFileStore) ReadDir(name string) ([]fs.DirEntry, error) {
args := mfs.Called(name)
entries, _ := args.Get(0).([]fs.DirEntry)
return entries, args.Error(1)
}
func (mfs *MockFileStore) ReadLink(name string) (string, error) {
args := mfs.Called(name)
return args.String(0), args.Error(1)
}
func (mfs *MockFileStore) Walk(root string, fn filepath.WalkFunc) error {
args := mfs.Called(root, fn)
return args.Error(0)
}
func (mfs *MockFileStore) OpenFile(name string, flag int, perm fs.FileMode) (io.WriteCloser, error) {
args := mfs.Called(name, flag, perm)
f, _ := args.Get(0).(io.WriteCloser)
return f, args.Error(1)
}
func (mfs *MockFileStore) Symlink(oldname, newname string) error {
args := mfs.Called(oldname, newname)
return args.Error(0)
}
func (mfs *MockFileStore) RemoveAll(name string) error {
args := mfs.Called(name)
return args.Error(0)
}
func (mfs *MockFileStore) Remove(name string) error {
args := mfs.Called(name)
return args.Error(0)
}
func (mfs *MockFileStore) Create(name string) (io.WriteCloser, error) {
args := mfs.Called(name)
f, _ := args.Get(0).(io.WriteCloser)
return f, args.Error(1)
}
func (mfs *MockFileStore) WriteFile(name string, data []byte, perm fs.FileMode) error {
args := mfs.Called(name, data, perm)
return args.Error(0)
}
func (mfs *MockFileStore) Rename(oldpath, newpath string) error {
args := mfs.Called(oldpath, newpath)
return args.Error(0)
}
func (mfs *MockFileStore) ReadFile(name string) ([]byte, error) {
args := mfs.Called(name)
return args.Get(0).([]byte), args.Error(1)
}
type MockFileInfo struct {
mock.Mock
}
func (mfi *MockFileInfo) Name() string {
args := mfi.Called()
return args.String(0)
}
func (mfi *MockFileInfo) Size() int64 {
args := mfi.Called()
return args.Get(0).(int64)
}
func (mfi *MockFileInfo) Mode() fs.FileMode {
args := mfi.Called()
return args.Get(0).(fs.FileMode)
}
func (mfi *MockFileInfo) ModTime() time.Time {
_ = mfi.Called()
return time.Now()
}
func (mfi *MockFileInfo) IsDir() bool {
args := mfi.Called()
return args.Bool(0)
}
func (mfi *MockFileInfo) Sys() interface{} {
_ = mfi.Called()
return nil
}
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