update travis

Author: Aldemuro

.travis.yml

@@ -4,7 +4,5 @@ install: skip
 jobs:
   include:
     - stage: check_release_steps
-      scripts: echo "Checking release version $(python setup.py --version)"
-      script: if git tag | grep -qE "^v$(python setup.py --version)$"; then echo "Release already exists"; exit 1; fi
-      scripts : if ! grep -q "v$(python setup.py --version)" CHANGELOG.md; then echo "Version missing in CHANGELOG.md"; exit 1; fi
+      scripts: "./check_release_step.sh"
 

check_release_step.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+echo "Checking release version $(python setup.py --version)"
+
+if git tag | grep -qE "^v$(python setup.py --version)$"; then echo "Release already exists"; exit 1; fi
+
+if ! grep -q "v$(python setup.py --version)" CHANGELOG.md; then echo "Version missing in CHANGELOG.md"; exit 1; fi