Enable coverity scan for Travis CI

.travis.yml

@@ -6,6 +6,22 @@ branches:
   only:
     - master
     - /openmw-.*$/
+env:
+  global:
+   # The next declaration is the encrypted COVERITY_SCAN_TOKEN, created
+   #   via the "travis encrypt" command using the project repo's public key
+   - secure: "CcQGmzgaBRTPWqPZLoLX4Zkt5pOQb5c6Pr5OFt15C8xQRhWOLrWcdsQEO1UuEJ70/YJgbvN+wQk8B5COBDLxM1roBNBu7zMpK//393Qx3rL2f9PdaZGLaCEtS5DyuXimyUXWzjMt8gsnsBxtomTgHBY4E7F5ag0Ub2z6ZsIQE1A="
+
+addons:
+  coverity_scan:
+    project:
+      name: "scrawl/openmw"
+      description: "<Your project description here>"
+    notification_email: scrawl@baseoftrash.de
+    build_command_prepend: "cmake ."
+    build_command:   "make -j4"
+    branch_pattern: coverity_scan
+
 before_install:
  - if [ "${TRAVIS_OS_NAME}" = "linux" ]; then ./CI/before_install.linux.sh; fi
  - if [ "${TRAVIS_OS_NAME}" = "osx" ]; then ./CI/before_install.osx.sh; fi
@@ -14,7 +30,7 @@ before_script:
  - if [ "${TRAVIS_OS_NAME}" = "osx" ]; then ./CI/before_script.osx.sh; fi
 script:
  - cd ./build
- - make -j4
+ - if [ "$COVERITY_SCAN_BRANCH" != 1 ]; then make -j4; fi
 after_script:
  - if [ "${TRAVIS_OS_NAME}" = "linux" ]; then ./openmw_test_suite; fi
 notifications: