first working version

pkg/fs/file.go

@@ -0,0 +1,72 @@
+package fs
+
+import (
+	"errors"
+	"git.giftfish.de/ston1th/docstore/pkg/core"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+func (fs *Filesystem) GetFile(path string) (f *os.File, fi os.FileInfo, err error) {
+	path = strings.TrimPrefix(filepath.Clean(path), core.RawPrefix)
+	p := filepath.Join(fs.Base, path)
+	f, err = os.Open(p)
+	if err != nil {
+		return
+	}
+	fi, err = f.Stat()
+	if err != nil {
+		return
+	}
+	if !fi.Mode().IsRegular() {
+		err = os.ErrNotExist
+	}
+	return
+}
+
+func (fs *Filesystem) Mode(path string) (mode FileMode, err error) {
+	path = filepath.Clean(path)
+	p := filepath.Join(fs.Base, path)
+	fi, err := os.Stat(p)
+	if err != nil {
+		return
+	}
+	m := fi.Mode()
+	if m.IsDir() {
+		mode = IsDir
+	} else if m.IsRegular() {
+		mode = IsFile
+	}
+	return
+}
+
+func (fs *Filesystem) Move(path, dest, name string) (string, error) {
+	path = filepath.Clean(path)
+	if name == "" {
+		_, name = filepath.Split(path)
+	}
+	newfile := filepath.Clean(filepath.Join(dest, name))
+	return newfile, os.Rename(filepath.Join(fs.Base, path), filepath.Join(fs.Base, newfile))
+}
+
+func (fs *Filesystem) Delete(path string) (removed []string, err error) {
+	path = filepath.Clean(path)
+	fullpath := filepath.Join(fs.Base, path)
+	if fullpath == fs.Base {
+		return nil, errors.New("the root path can not be deleted")
+	}
+	fi, err := os.Stat(path)
+	if err != nil {
+		return
+	}
+	m := fi.Mode()
+	if m.IsDir() {
+		err = os.RemoveAll(fullpath)
+		removed = fs.RecursiveFiles(path)
+	} else if m.IsRegular() {
+		err = os.Remove(fullpath)
+		removed = []string{path}
+	}
+	return
+}