86 lines
1.8 KiB
Go
86 lines
1.8 KiB
Go
package drivers
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import (
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"io"
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"io/ioutil"
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"os"
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"path"
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)
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type FSDriver struct {
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Path string // Where the objects are stored
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}
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// Create creates a new object in the storage with given body.
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// This just copying the given file into the right location.
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func (f FSDriver) Create(key string, filePath string) error {
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err := os.MkdirAll(path.Dir(path.Join(f.Path, key)), 0755)
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if err != nil {
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return err
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}
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source, err := os.Open(filePath)
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if err != nil {
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return err
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}
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defer source.Close()
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destination, err := os.Create(path.Join(f.Path, key))
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if err != nil {
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return err
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}
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defer destination.Close()
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_, err = io.Copy(destination, source)
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return err
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}
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// Get copies file from the storage into a local file
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func (f FSDriver) Get(key string, filePath string) error {
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source, err := os.Open(path.Join(f.Path, key))
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if err != nil {
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return err
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}
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defer source.Close()
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destination, err := os.Create(filePath)
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if err != nil {
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return err
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}
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defer destination.Close()
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_, err = io.Copy(destination, source)
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return err
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}
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// Read returns content of given key
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func (f *FSDriver) Read(key string) ([]byte, error) {
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body, err := ioutil.ReadFile(path.Join(f.Path, key))
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return body, err
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}
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// Write writes content of body into key
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func (f FSDriver) Write(key string, body []byte) error {
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return ioutil.WriteFile(path.Join(f.Path, key), body, 0644)
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}
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// List returns list of objects in fiven prefix
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func (f FSDriver) List(prefix string) ([]string, error) {
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keys := []string{}
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files, err := ioutil.ReadDir(path.Join(f.Path, prefix))
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if err != nil {
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return keys, err
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}
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for _, file := range files {
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keys = append(keys, file.Name())
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}
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return keys, nil
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}
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// Delete deletes one object
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func (f FSDriver) Delete(key string) error {
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return os.Remove(path.Join(f.Path, key))
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}
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