diff options
Diffstat (limited to 'vendor/github.com/spf13/afero/iofs.go')
-rw-r--r-- | vendor/github.com/spf13/afero/iofs.go | 288 |
1 files changed, 0 insertions, 288 deletions
diff --git a/vendor/github.com/spf13/afero/iofs.go b/vendor/github.com/spf13/afero/iofs.go deleted file mode 100644 index c80345536d..0000000000 --- a/vendor/github.com/spf13/afero/iofs.go +++ /dev/null @@ -1,288 +0,0 @@ -// +build go1.16 - -package afero - -import ( - "io" - "io/fs" - "os" - "path" - "time" -) - -// IOFS adopts afero.Fs to stdlib io/fs.FS -type IOFS struct { - Fs -} - -func NewIOFS(fs Fs) IOFS { - return IOFS{Fs: fs} -} - -var ( - _ fs.FS = IOFS{} - _ fs.GlobFS = IOFS{} - _ fs.ReadDirFS = IOFS{} - _ fs.ReadFileFS = IOFS{} - _ fs.StatFS = IOFS{} - _ fs.SubFS = IOFS{} -) - -func (iofs IOFS) Open(name string) (fs.File, error) { - const op = "open" - - // by convention for fs.FS implementations we should perform this check - if !fs.ValidPath(name) { - return nil, iofs.wrapError(op, name, fs.ErrInvalid) - } - - file, err := iofs.Fs.Open(name) - if err != nil { - return nil, iofs.wrapError(op, name, err) - } - - // file should implement fs.ReadDirFile - if _, ok := file.(fs.ReadDirFile); !ok { - file = readDirFile{file} - } - - return file, nil -} - -func (iofs IOFS) Glob(pattern string) ([]string, error) { - const op = "glob" - - // afero.Glob does not perform this check but it's required for implementations - if _, err := path.Match(pattern, ""); err != nil { - return nil, iofs.wrapError(op, pattern, err) - } - - items, err := Glob(iofs.Fs, pattern) - if err != nil { - return nil, iofs.wrapError(op, pattern, err) - } - - return items, nil -} - -func (iofs IOFS) ReadDir(name string) ([]fs.DirEntry, error) { - items, err := ReadDir(iofs.Fs, name) - if err != nil { - return nil, iofs.wrapError("readdir", name, err) - } - - ret := make([]fs.DirEntry, len(items)) - for i := range items { - ret[i] = dirEntry{items[i]} - } - - return ret, nil -} - -func (iofs IOFS) ReadFile(name string) ([]byte, error) { - const op = "readfile" - - if !fs.ValidPath(name) { - return nil, iofs.wrapError(op, name, fs.ErrInvalid) - } - - bytes, err := ReadFile(iofs.Fs, name) - if err != nil { - return nil, iofs.wrapError(op, name, err) - } - - return bytes, nil -} - -func (iofs IOFS) Sub(dir string) (fs.FS, error) { return IOFS{NewBasePathFs(iofs.Fs, dir)}, nil } - -func (IOFS) wrapError(op, path string, err error) error { - if _, ok := err.(*fs.PathError); ok { - return err // don't need to wrap again - } - - return &fs.PathError{ - Op: op, - Path: path, - Err: err, - } -} - -// dirEntry provides adapter from os.FileInfo to fs.DirEntry -type dirEntry struct { - fs.FileInfo -} - -var _ fs.DirEntry = dirEntry{} - -func (d dirEntry) Type() fs.FileMode { return d.FileInfo.Mode().Type() } - -func (d dirEntry) Info() (fs.FileInfo, error) { return d.FileInfo, nil } - -// readDirFile provides adapter from afero.File to fs.ReadDirFile needed for correct Open -type readDirFile struct { - File -} - -var _ fs.ReadDirFile = readDirFile{} - -func (r readDirFile) ReadDir(n int) ([]fs.DirEntry, error) { - items, err := r.File.Readdir(n) - if err != nil { - return nil, err - } - - ret := make([]fs.DirEntry, len(items)) - for i := range items { - ret[i] = dirEntry{items[i]} - } - - return ret, nil -} - -// FromIOFS adopts io/fs.FS to use it as afero.Fs -// Note that io/fs.FS is read-only so all mutating methods will return fs.PathError with fs.ErrPermission -// To store modifications you may use afero.CopyOnWriteFs -type FromIOFS struct { - fs.FS -} - -var _ Fs = FromIOFS{} - -func (f FromIOFS) Create(name string) (File, error) { return nil, notImplemented("create", name) } - -func (f FromIOFS) Mkdir(name string, perm os.FileMode) error { return notImplemented("mkdir", name) } - -func (f FromIOFS) MkdirAll(path string, perm os.FileMode) error { - return notImplemented("mkdirall", path) -} - -func (f FromIOFS) Open(name string) (File, error) { - file, err := f.FS.Open(name) - if err != nil { - return nil, err - } - - return fromIOFSFile{File: file, name: name}, nil -} - -func (f FromIOFS) OpenFile(name string, flag int, perm os.FileMode) (File, error) { - return f.Open(name) -} - -func (f FromIOFS) Remove(name string) error { - return notImplemented("remove", name) -} - -func (f FromIOFS) RemoveAll(path string) error { - return notImplemented("removeall", path) -} - -func (f FromIOFS) Rename(oldname, newname string) error { - return notImplemented("rename", oldname) -} - -func (f FromIOFS) Stat(name string) (os.FileInfo, error) { return fs.Stat(f.FS, name) } - -func (f FromIOFS) Name() string { return "fromiofs" } - -func (f FromIOFS) Chmod(name string, mode os.FileMode) error { - return notImplemented("chmod", name) -} - -func (f FromIOFS) Chown(name string, uid, gid int) error { - return notImplemented("chown", name) -} - -func (f FromIOFS) Chtimes(name string, atime time.Time, mtime time.Time) error { - return notImplemented("chtimes", name) -} - -type fromIOFSFile struct { - fs.File - name string -} - -func (f fromIOFSFile) ReadAt(p []byte, off int64) (n int, err error) { - readerAt, ok := f.File.(io.ReaderAt) - if !ok { - return -1, notImplemented("readat", f.name) - } - - return readerAt.ReadAt(p, off) -} - -func (f fromIOFSFile) Seek(offset int64, whence int) (int64, error) { - seeker, ok := f.File.(io.Seeker) - if !ok { - return -1, notImplemented("seek", f.name) - } - - return seeker.Seek(offset, whence) -} - -func (f fromIOFSFile) Write(p []byte) (n int, err error) { - return -1, notImplemented("write", f.name) -} - -func (f fromIOFSFile) WriteAt(p []byte, off int64) (n int, err error) { - return -1, notImplemented("writeat", f.name) -} - -func (f fromIOFSFile) Name() string { return f.name } - -func (f fromIOFSFile) Readdir(count int) ([]os.FileInfo, error) { - rdfile, ok := f.File.(fs.ReadDirFile) - if !ok { - return nil, notImplemented("readdir", f.name) - } - - entries, err := rdfile.ReadDir(count) - if err != nil { - return nil, err - } - - ret := make([]os.FileInfo, len(entries)) - for i := range entries { - ret[i], err = entries[i].Info() - - if err != nil { - return nil, err - } - } - - return ret, nil -} - -func (f fromIOFSFile) Readdirnames(n int) ([]string, error) { - rdfile, ok := f.File.(fs.ReadDirFile) - if !ok { - return nil, notImplemented("readdir", f.name) - } - - entries, err := rdfile.ReadDir(n) - if err != nil { - return nil, err - } - - ret := make([]string, len(entries)) - for i := range entries { - ret[i] = entries[i].Name() - } - - return ret, nil -} - -func (f fromIOFSFile) Sync() error { return nil } - -func (f fromIOFSFile) Truncate(size int64) error { - return notImplemented("truncate", f.name) -} - -func (f fromIOFSFile) WriteString(s string) (ret int, err error) { - return -1, notImplemented("writestring", f.name) -} - -func notImplemented(op, path string) error { - return &fs.PathError{Op: op, Path: path, Err: fs.ErrPermission} -} |