[ci] Add framework for Travis integration

.travis.mk

@@ -0,0 +1,45 @@
+## Makefile.CI
+#
+# This is for use on [Travis CI](http://travis-ci.org), which is
+# a free distributed continuous integration service with unique
+# set of features:
+# * uses clean ephemeral virtual machines for every build
+# * integrates with GitHub - triggers builds on push and pull-request 
+# * it is open source and free for public repositories
+# * features great web UI and bunch of other stuff
+
+JOBS ?= 2
+TAIL ?= tail -n 15
+
+
+EXAMPLES_ALL = hello-world
+
+EXAMPLES_native = ipv6/native-border-router
+
+CT := \033[0;0m
+
+ifdef BOXED_SIGNS
+  SKIP_SIGN := ☐
+  FAIL_SIGN := ☒
+  PASS_SIGN := ☑
+else
+  SKIP_SIGN := ✈
+  FAIL_SIGN := ✘
+  PASS_SIGN := ✔
+endif
+
+
+SKIP  = (echo "\033[1;36m  $(SKIP_SIGN) ➝ ❨ $$e ⊈ $@ ❩$(CT)"; echo skip >> results)
+FAIL  = (echo "\033[1;35m  $(FAIL_SIGN) ➝ ❨ $$e ∉ $@ ❩$(CT)"; $(TAIL) $(LOG); echo fail >> results)
+PASS  = (echo "\033[1;32m  $(PASS_SIGN) ➝ ❨ $$e ∈ $@ ❩$(CT)"; echo pass >> results)
+
+ifeq ($(BUILD_TYPE),multi)
+THIS = $(MAKE) -C examples/$$e TARGET=$@ > $(LOG) 2>&1
+MINE = $(EXAMPLES_ALL) $(EXAMPLES_$(subst -,_,$@))
+endif
+
+LOG  = /tmp/$@_`echo $$e | sed 's:/:_:g'`.log
+
+%:
+	@echo "\033[1;37m ➠ ❨$@❩ $(CT)"
+	@for e in $(MINE); do $(THIS) && $(PASS) || $(FAIL); done;

.travis.yml

@@ -0,0 +1,20 @@
+language: c #NOTE: this will set CC=gcc which might cause trouble
+before_script:
+  ## Install mainline msp430 toolchain for all build types
+  - "sudo apt-get -qq update && sudo apt-get -qq install gcc-msp430 || true"
+
+script:
+  ## The makefile called `.travis.mk` handles most of generic logic
+  - "make -f .travis.mk $MAKE_TARGETS"
+
+after_script:
+  ## Print a basic summary in unix style
+  - "echo 'Summary:'; cat results | sort | uniq -c"
+  ## This will detect whether the build should pass or fail
+  - "grep -v -q 'fail' results"
+
+
+env:
+  ## This magically kick-off parallel jobs for each of the for the sets
+  ## of environment variable defined below
+  - BUILD_TYPE='multi' MAKE_TARGETS='native minimal-net'