travis: Make coveralls work again under docker

.travis.yml

@@ -4,6 +4,7 @@ language: c
 
 env:
   - BUILD_OPTS="--prefix=/usr --libdir=/usr/lib64"
+  - BUILD_OPTS="--prefix=/usr --libdir=/usr/lib64 --enable-code-coverage" COVERAGE=yes
   - BUILD_OPTS="--prefix=/usr --libdir=/usr/lib64 CFLAGS='-fsanitize=address -g -fno-common -U_FORTIFY_SOURCE' CXXFLAGS='-fsanitize=address -g -fno-common -U_FORTIFY_SOURCE' LDFLAGS='-fsanitize=address -g -fno-common -U_FORTIFY_SOURCE' LIBS='-ldl -lpthread'"
   - BUILD_OPTS="--prefix=/usr --libdir=/usr/lib64 CFLAGS='-fsanitize=undefined -g -fno-common -U_FORTIFY_SOURCE' CXXFLAGS='-fsanitize=undefined -g -fno-common -U_FORTIFY_SOURCE' LDFLAGS='-fsanitize=undefined -g -fno-common -U_FORTIFY_SOURCE' LIBS='-ldl -lpthread'"
 
@@ -25,6 +26,7 @@ before_install:
   - docker exec $CONTAINER dnf -y install vala vala-devel
   - docker exec $CONTAINER dnf -y install gnome-common
   - docker exec $CONTAINER dnf -y install python-pip
+  - docker exec $CONTAINER dnf -y install git
   - docker exec $CONTAINER useradd user
 
 install:
@@ -36,6 +38,8 @@ script:
   - docker exec $CONTAINER su - user sh -c "cd /srcdir && ./configure --enable-code-coverage $BUILD_OPTS"
   - docker exec $CONTAINER su - user sh -c "cd /srcdir && make V=1 && touch po/libkkc.pot && make check V=1"
 
+after_failure:
+  - docker exec $CONTAINER su - user sh -c "cd /srcdir && cat tests/test-suite.log"
+
 after_success:
-  - docker exec $CONTAINER pip install cpp-coveralls
-  - docker exec $CONTAINER coveralls --exclude lib --exclude tests --gcov-options '\-lp'
+  - if test x"$COVERAGE" = xyes; then docker exec $CONTAINER pip install cpp-coveralls; docker exec -e TRAVIS_JOB_ID="$TRAVIS_JOB_ID" -e TRAVIS_BRANCH="$TRAVIS_BRANCH" $CONTAINER sh -c "cd /srcdir && coveralls --exclude tools --exclude tests --gcov-options '\-lp'"; fi