diff --git a/.drone.yml b/.drone.yml
new file mode 100644
index 0000000..324d666
--- /dev/null
+++ b/.drone.yml
@@ -0,0 +1,24 @@
+kind: pipeline
+name: default
+
+steps:
+ - name: fmt
+   image: rust:1.43.0
+   commands:
+     -  rustup component add rustfmt
+     -  cargo fmt --all -- --check
+ - name: test
+   image: rust:1.43.0
+   commands:
+    - cargo test
+ - name: publish
+   image: rust:1.43.0
+   environment:
+    CARGO_REGISTRY_TOKEN:
+     from_secret: cargo_tkn
+   commands:
+    - grep -E 'version ?= ?"${DRONE_TAG}"' -i Cargo.toml || (printf "incorrect crate/tag version" && exit 1)
+    - cargo package
+    - cargo publish
+   when:
+    event: tag
diff --git a/src/protocol/error.rs b/src/protocol/error.rs
new file mode 100644
index 0000000..e69de29