ci: verify on different tarantool versions

Now, Travis CI will run tests for memcached module
using Tarantool versions 1.10, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7

Added few jobs to .travis.yml for this feature.

Updated way to enable tarantool repo to
`curl -L https://tarantool.io/installer.sh | sudo VER=2.5 bash`
in test.sh and made TARANTOOL_VERSION variable in test.sh

Fixes #58

Co-authored-by: Alexander Turenko <[email protected]>

Author: 2 people

.travis.yml

@@ -17,7 +17,14 @@ env:
     global:
       - PRODUCT=tarantool-memcached
     matrix:
-      - TARGET=test
+      - TARGET=test TARANTOOL_VERSION=1.10
+      - TARGET=test TARANTOOL_VERSION=2.1
+      - TARGET=test TARANTOOL_VERSION=2.2
+      - TARGET=test TARANTOOL_VERSION=2.3
+      - TARGET=test TARANTOOL_VERSION=2.4
+      - TARGET=test TARANTOOL_VERSION=2.5
+      - TARGET=test TARANTOOL_VERSION=2.6
+      - TARGET=test TARANTOOL_VERSION=2.7
       - OS=el DIST=6
       - OS=el DIST=7
       - OS=el DIST=8

test.sh

@@ -2,9 +2,26 @@
 
 set -eu  # Strict shell, w/o print commands (set -x), w/o -o pipefail
 
-curl -s https://packagecloud.io/install/repositories/tarantool/1_10/script.deb.sh | sudo bash
+TARANTOOL_VERSION="${TARANTOOL_VERSION:-1.10}"
+
+# Setup tarantool repository.
+#
+# --repo-only: Setup the repository, but don't install tarantool.
+#              The tarantool executable is installed later,
+#              together with the development package.
+#
+# --type live: Setup so called 'live' repository with the latest
+#              tarantool versions of given ${TARANTOOL_VERSION}
+#              branch. We want to verify the module against the
+#              latest versions to spot problems earlier.
+curl -fsSL https://tarantool.io/installer.sh | \
+    sudo "VER=${TARANTOOL_VERSION}" bash -s - --repo-only --type live
+
+# Install tarantool executable, headers and other build/test
+# dependencies of the module.
 sudo apt-get install -y tarantool tarantool-dev libevent-dev libsasl2-dev --force-yes
 pip install --user python-daemon PyYAML six==1.9.0 msgpack-python gevent==1.1.2
+
 TARANTOOL_DIR=/usr/include cmake . -DCMAKE_BUILD_TYPE=Release
 
 # third_party/libmemcached/bootstrap.sh runs /usr/local/bin/shellcheck on