Set up Travis CI automatic build uploads to SFTP server.

.travis.yml

@@ -3,3 +3,10 @@ jdk:
   - oraclejdk8
 notifications:
   email: false
+addons:
+  apt:
+    packages:
+      - sshpass
+script: mvn clean install
+after_success:
+  - ./travis-upload.sh

travis-upload.sh

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+if [ "${TRAVIS_PULL_REQUEST}" = "false" ]; then
+  mv target/TotalFreedomMod.jar target/TotalFreedomMod-${TRAVIS_COMMIT}.jar
+  export SSHPASS=${SFTP_PASSWORD}
+  sshpass -e sftp -oStrictHostKeyChecking=no -oUserKnownHostsFile=/dev/null -oLogLevel=ERROR -oBatchMode=no -b - ${SFTP_USER}@${SFTP_HOST}:${SFTP_PATH} << !
+    put target/TotalFreedomMod-${TRAVIS_COMMIT}.jar
+    bye
+!
+  echo "Artifact upload status: "$?
+else
+  echo "Skipping artifact upload for pull request build."
+fi