re-add travis, remove drone configs

.drone.yml

@@ -1,8 +0,0 @@
-image: encfs_worker
-script:
-  - sh devmode -DCMAKE_INSTALL_PREFIX:PATH=/tmp/encfs
-  - cd build
-  - make
-  - make test
-  - make install
-  - /tmp/encfs/bin/encfsctl --version

.travis.yml

@@ -0,0 +1,32 @@
+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: "KuAAwjiIqkk4vqSX/M3ZZIvQs6edm+tV8IADiklTUYZIFyxu8FgZ6RbDdMD2sef5bNZA1OZhlcbeRtiKff5CfMtvzc607Lg3NUkpi+ShMynWgqS/e0uCMf9ogEJlUiZMxf4juBi7v6DyMl/WV6pAdJmdfHtzcj8GF2mgTfQjkO8="
+
+language: cpp
+
+compiler:
+ - gcc
+ - clang
+
+-before_install:
+ - sudo apt-get install -qq cmake libfuse-dev libgettextpo-dev
+ - echo -n | openssl s_client -connect scan.coverity.com:443 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' | sudo tee -a /etc/ssl/certs/ca-
+
+-script:
+ - sh devmode
+ - cd build
+ - make
+ - ./checkops
+
+addons:
+  coverity_scan:
+    project:
+      name: "vgough/encfs"
+      description: "Build submitted via Travis CI"
+    notification_email: vgough@pobox.com
+    build_command_prepend: "cd build && make clean"
+    build_command:   "make -j 4"
+    branch_pattern: coverity_scan
+

ci/config.sh

@@ -1,5 +0,0 @@
-set -x
-set -e
-mkdir build
-cd build
-cmake -DCMAKE_INSTALL_PREFIX:PATH=/tmp/encfs -DCMAKE_BUILD_TYPE=Debug -DMINIGLOG=ON ..

ci/install-cmake.sh

@@ -1,7 +0,0 @@
-set -x
-set -e
-if [ ! -e ci/cmake/bin/cmake ]; then
-  wget http://www.cmake.org/files/v3.1/cmake-3.1.3-Linux-x86_64.tar.gz
-  tar -xzf cmake-3.1.3-Linux-x86_64.tar.gz
-  mv cmake-3.1.3-Linux-x86_64 ci/cmake
-fi

ci/install-gcc.sh

@@ -1,5 +0,0 @@
-set -x
-set -e
-sudo apt-get install -y gcc-4.8 g++-4.8
-sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.8 100
-sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.8 100