Makefile: Add "smokecheck" target and incremental check in travis

This target checks very basic function of avocado and is used
incrementally in travis to verify this functionality for each
commit up to the origin/master.
Signed-off-by: NLukáš Doktor <ldoktor@redhat.com>

.travis.yml

@@ -27,3 +27,20 @@ script:
     - python setup.py develop
     - ./selftests/run
     - ./selftests/check_tmp_dirs
+    - |
+        ERR=""
+        MASTER=$(git rev-parse origin/master)
+        echo Master is $MASTER
+        for COMMIT in $(git rev-list origin..HEAD); do
+            echo
+            echo "--------------------< $(git log -1 --oneline $COMMIT) >--------------------"
+            echo
+            echo
+            git checkout $COMMIT || ERR=$(echo -e "$ERR\nUnable to checkout $(git log -1 --oneline $COMMIT)")
+            python setup.py develop && make smokecheck || ERR=$(echo -e "$ERR\n$(git log -1 --oneline)")
+        done
+        if [ "$ERR" ]; then
+            echo
+            echo "Incremental smokecheck failed: $ERR"
+            exit -1
+        fi

Makefile

@@ -123,6 +123,9 @@ requirements:
 requirements-selftests: requirements
 	- grep -v '^#' requirements-selftests.txt | xargs -n 1 pip install --upgrade
 
+smokecheck:
+	./scripts/avocado run passtest
+
 check: clean check_cyclical modules_boundaries
 	selftests/checkall
 	selftests/check_tmp_dirs