65 lines
1.0 KiB
Go
65 lines
1.0 KiB
Go
package remote
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import (
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"bytes"
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"crypto/md5"
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"fmt"
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"io"
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"os"
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)
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func fileFactory(conf map[string]string) (Client, error) {
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path, ok := conf["path"]
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if !ok {
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return nil, fmt.Errorf("missing 'path' configuration")
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}
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return &FileClient{
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Path: path,
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}, nil
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}
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// FileClient is a remote client that stores data locally on disk.
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// This is only used for development reasons to test remote state... locally.
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type FileClient struct {
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Path string
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}
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func (c *FileClient) Get() (*Payload, error) {
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var buf bytes.Buffer
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f, err := os.Open(c.Path)
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if err != nil {
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if os.IsNotExist(err) {
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return nil, nil
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}
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return nil, err
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}
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defer f.Close()
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if _, err := io.Copy(&buf, f); err != nil {
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return nil, err
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}
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md5 := md5.Sum(buf.Bytes())
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return &Payload{
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Data: buf.Bytes(),
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MD5: md5[:],
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}, nil
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}
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func (c *FileClient) Put(data []byte) error {
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f, err := os.Create(c.Path)
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if err != nil {
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return err
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}
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defer f.Close()
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_, err = f.Write(data)
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return err
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}
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func (c *FileClient) Delete() error {
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return os.Remove(c.Path)
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}
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