Try to sort out what happened after failure on Travis CI

Author: sergeyklay

.travis.yml

@@ -60,6 +60,8 @@ install:
 script:
     - bash ${TRAVIS_BUILD_DIR}/tests/ci/run-tests.sh
 
+after_failure:
+    - bash ${TRAVIS_BUILD_DIR}/tests/ci/after-failure.sh
 addons:
     apt:
         packages:

tests/.gitignore

@@ -1,5 +1,6 @@
 *.sh
 !ci/run-tests.sh
+!ci/after-failure.sh
 *.out
 *.exp
 *.diff

tests/ci/after-failure.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+#
+# Zephir Parser
+#
+# Copyright (c) 2013-present Zephir Team and contributors
+#
+# This source file is subject the MIT license, that is bundled with
+# this package in the file LICENSE, and is available through the
+# world-wide-web at the following url:
+# http://zephir-lang.com/license.html
+#
+# If you did not receive a copy of the MIT license and are unable
+# to obtain it through the world-wide-web, please send a note to
+# license@zephir-lang.com so we can mail you a copy immediately.
+
+# The -e flag causes the script to exit as soon as one command returns a non-zero exit code.
+# This can be handy if you want whatever script you have to exit early.
+# It also helps in complex installation scripts where one failed command wouldn’t otherwise cause the installation to fail.
+set -ev
+
+if [ -f "${TRAVIS_BUILD_DIR}/configure.log" ]; then
+	cat "${TRAVIS_BUILD_DIR}/configure.log"
+fi
+
+ls -al ${TRAVIS_BUILD_DIR}