add cache to yaml

README.md

@@ -15,6 +15,6 @@ Drone documentation is organized into several categories:
 * [Plugin Guide](http://readme.drone.io/docs/plugin/)
 * [API Reference](http://readme.drone.io/docs/api/)
 
-### Community
+### Community, Help
 
-Contributions, questions, and comments are welcomed and encouraged. Drone developers hang out in the [drone/drone](https://gitter.im/drone/drone) room on [gitter](https://gitter.im/drone/drone).
+Contributions, questions, and comments are welcomed and encouraged. Drone developers hang out in the [drone/drone](https://gitter.im/drone/drone) room on gitter. We ask that you please post your questions to [gitter](https://gitter.im/drone/drone) before creating an issue.

pkg/types/config.go

@@ -47,6 +47,7 @@ type Step struct {
 	Entrypoint  []string
 	Command     []string
 	Volumes     []string
+	Cache       []string
 	WorkingDir  string `yaml:"working_dir"`
 	NetworkMode string `yaml:"net"`
 

pkg/utils/sshutil/sshutil.go

@@ -37,3 +37,16 @@ func MarshalPrivateKey(privkey *rsa.PrivateKey) []byte {
 	privateKeyPEM := pem.EncodeToMemory(&pem.Block{Type: "RSA PRIVATE KEY", Headers: nil, Bytes: privateKeyMarshaled})
 	return privateKeyPEM
 }
+
+// helper function to encrypt a plain-text string using
+// an RSA public key.
+func Encrypt(pubkey *rsa.PublicKey, msg string) ([]byte, error) {
+	return rsa.EncryptPKCS1v15(rand.Reader, pubkey, []byte(msg))
+}
+
+// helper function to encrypt a plain-text string using
+// an RSA public key.
+func Decrypt(privkey *rsa.PrivateKey, secret string) (string, error) {
+	msg, err := rsa.DecryptPKCS1v15(rand.Reader, privkey, []byte(secret))
+	return string(msg), err
+}