Add exec_pre option

README.md

@@ -19,6 +19,7 @@
 - **port** (default: `222`): SSH port to connect to
 - **user** (default: `drone`): System user to connect via SSH with
 - **exec** (default: none): Run a command in the container after copying
+- **exec_pre** (default: none): Run a command in the container before copying
 
 ### Makes me sad they exist
 

plugin.sh

@@ -51,6 +51,12 @@ run_docker_cp() {
     CD="-C $PLUGIN_CHDIR"
   fi
 
+  echo "--- start exec_pre ---"
+  if [ -n "$PLUGIN_EXEC_PRE" ]; then
+	docker -H "$REMOTE_DOCKER_HOST" exec "$CONTAINER" sh -c "mkdir -p /root/.ssh && echo \"$PLUGIN_DEPLOY_KEY\" > /root/.ssh/id_rsa && chmod -R 600 /root/.ssh && $PLUGIN_EXEC_PRE"
+  fi
+  echo "--- end exec ---"
+
   echo "Copying $PLUGIN_SOURCE"
   # shellcheck disable=SC2086
   tar cf - $CD $PLUGIN_SOURCE | docker -H "$REMOTE_DOCKER_HOST" cp - $CONTAINER:$PLUGIN_DEST