Include CI upstream

The current build is limited to the debian branch (so it’s a no-op),
but CI should be extended to more than building packages. Furthermore,
providing files outside debian/ on a debian branch is going to confuse
gbp otherwise.

.drone.yml

@@ -0,0 +1,41 @@
+kind: pipeline
+name: default
+
+steps:
+- name: build debian package
+  image: evolix/gbp:latest
+  branches:
+  - debian
+  commands:
+  - mk-build-deps --install --remove debian/control
+  - git clean --force
+  - gbp buildpackage
+  volumes:
+  - name: tmp
+    path: /tmp
+  when:
+    branch:
+    - debian
+
+- name: upload debian package
+  image: drillster/drone-rsync
+  settings:
+    hosts: ["pub.evolix.net"]
+    port: 22
+    user: droneci
+    key:
+      from_secret: drone_private_key
+    target: /home/droneci/bkctld/
+    source: /tmp/bkctld/
+    delete: true
+  volumes:
+  - name: tmp
+    path: /tmp
+  when:
+    branch:
+    - debian
+
+volumes:
+- name: tmp
+  host:
+    path: /tmp