Merge pull request #98 from dawagner/travis-docker

travis: Use the docker infrastructure

As advertised by travis news:

    http://blog.travis-ci.com/2014-12-17-faster-builds-with-container-based-infrastructure/

using the new docker infra is faster and more reliable. This comes with the
cost of not being able to use "sudo", though. Installing packages is still
possible by specifying them in an "addons.apt" section in .travis.yml. We have
to remove "sudo make install" but we aren't using the installed libs and
binaries anyway.

I had some syntax issues with the "addons" and "env" sections and had to remove
the coverity subsection which wasn't configure for the 01org repository anyway.
I'm also removing the email notification since I never received any email and
actually don't want to.

Author: dawagner

.travis.yml

@@ -1,41 +1,52 @@
+# Use travis docker infrastructure
+sudo: false
 language: cpp
+
+env:
+    global:
+        - PREFIX=$HOME/prefix
+
 compiler:
-  - gcc
-#  - clang # not supported yet
+    - gcc
+    # clang not supported yet
+    # - clang
 
-# Install a recent gcc, gcov and cmake,
+# Install a recent gcc and gcov,
 # it will not be necessary once travis worker is based on ubuntu > 12.04.
 # Install SWIG for bindings generation
-before_install:
-  - sudo add-apt-repository --yes ppa:ubuntu-toolchain-r/test
-  - sudo add-apt-repository --yes ppa:kalakris/cmake # Non official cmake backport
-  - sudo apt-get update -qq
-  - sudo pip install cpp-coveralls
+# Install valgrind for memcheck tests
+addons:
+    apt:
+        sources:
+            - ubuntu-toolchain-r-test
+        packages:
+            - swig
+            - valgrind
+            - g++-4.8
 
 install:
-  - sudo apt-get install --yes swig cmake valgrind g++-4.8
-  - sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.8 100
-  - sudo update-alternatives --install /usr/bin/gcov gcov /usr/bin/gcov-4.8 100
-  - sudo wget --directory-prefix /usr/include/
+    - pip install --user cpp-coveralls; export PATH=$HOME/.local/bin:$PATH
+    - wget --directory-prefix $PREFIX/include
               https://raw.github.com/philsquared/Catch/master/single_include/catch.hpp
 
+before_script:
+    - if [ "$CC" = "gcc" ]; then export CC=gcc-4.8 CXX=g++-4.8; fi
+
 # how to build
 script:
   - ( mkdir build_debug && cd build_debug &&
-        cmake -DCMAKE_BUILD_TYPE=Debug -DCOVERAGE=ON .. &&
+        cmake -DCMAKE_PREFIX_PATH=$PREFIX -DCMAKE_BUILD_TYPE=Debug -DCOVERAGE=ON .. &&
         make -j &&
         CTEST_OUTPUT_ON_FAILURE=1 make ExperimentalTest ExperimentalMemCheck )
   - ( mkdir build && cd build &&
-        cmake .. &&
+        cmake -DCMAKE_PREFIX_PATH=$PREFIX -DCMAKE_INSTALL_PREFIX=../install .. &&
         make -j &&
-        sudo make install &&
-        sudo ldconfig &&
-        CTEST_OUTPUT_ON_FAILURE=1 make test )
+        CTEST_OUTPUT_ON_FAILURE=1 make test &&
+        make install)
   - ( cd skeleton-subsystem &&
-        cmake . &&
+        cmake -DCMAKE_INSTALL_PREFIX=../install . &&
         make &&
-        sudo make install &&
-        sudo ldconfig )
+        make install )
 
 after_success:
     # Push coverage info on coveralls.io.
@@ -48,26 +59,9 @@ after_success:
           --exclude "test/test-subsystem"
           --exclude "bindings/c/Test.cpp"
           --exclude "test/tokenizer"
+          --gcov /usr/bin/gcov-4.8
           --gcov-options '\--long-file-names --preserve-paths'
 
 notifications:
-  email:
-    - [email protected]
   irc:
     - "chat.freenode.net#parameter-framework"
-
-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: "Y+iKBg65e4dleuMwxAo1XSl/QkF4AtCe35ltu2DhPbeMJCywBmu0aeDb04oEaZJL+BxP+KMoRqRjeoGI3W/sh0gAq03iQ+P4C8KwRb9fdYPPVwH3NP3fyN27gFBH9GS8uMth68o2KP/oO/aqNwii/KbMZtubp7MhY/wnvz4DLCQ="
-
-addons:
-  coverity_scan:
-    project:
-      name: "dawagner/parameter-framework"
-      description: "Plugin-based and rule-based framework for managing parameters"
-    notification_email: [email protected]
-    build_command_prepend: "cmake ."
-    build_command: "make -j 12"
-    branch_pattern: coverity_scan