travis: initial import of simple build job

Author: miri64

.travis.yml

@@ -0,0 +1,39 @@
+sudo: required
+
+language: minimal
+
+services:
+  - docker
+
+before_install:
+  - docker pull riot/riotbuild
+
+env:
+  global:
+  - BUILD_IN_DOCKER=1
+  - WERROR=0
+
+matrix:
+  include:
+  - name: "Build tutorials for native"
+    env: BOARD=native
+  - name: "Build tutorials for samr21-xpro"
+    env: BOARD=samr21-xpro
+  - name: "Build tutorials for phyWAVE-KW22"
+    env: BOARD=pba-d-01-kw2x
+
+before_script:
+  - export J="$(( $(grep -c ^processor /proc/cpuinfo) * 2 ))"
+
+script:
+  - make -C task-01 -j${J} all
+  - make -C task-02 -j${J} all
+  - make -C task-03 -j${J} all
+  - make -C task-04 -j${J} all
+  - make -C task-05 -j${J} all
+  # task-07
+  - make -C RIOT/examples/gnrc_minimal -j${J} all
+  - make -C RIOT/examples/gnrc_networking -j${J} all
+  - make -C task-06 -j${J} all
+  - make -C task-08 -j${J} all
+  - make -C task-09 -j${J} all