Add check-if-release script

Author: ehrenfeu

scripts/check-if-release.sh

@@ -0,0 +1,33 @@
+#!/bin/bash
+
+# Very basic script checking for the existence of a file 'release.properties' in
+# the root of the repository. If this is present, the state of the checkout
+# indicates this is a proper release made through the 'release-version.sh'
+# script from the 'scijava-scripts' repo. Will return false if the file is not
+# present, can be overridden with an environment variable.
+
+# The idea is to include this in automated builds to prevent accidential
+# attempts of publishing non-releases to PyPI.
+
+set -o errexit  # exit on any error
+
+PROPERTIES="release.properties"
+
+test -n "$IGNORE_NO_RELEASE" &&
+    echo "⚠ 🔀 NOT checking for file '$PROPERTIES'... ⚠" &&
+    exit 0
+
+cd "$(dirname "$0")/.."
+
+echo "Checking if '$PROPERTIES' exists..."
+test -f "$PROPERTIES" && echo "All good ✅" && exit 0
+
+echo 🛑🛑🛑
+echo '/-----------------------------------------------------\'
+echo "| Couldn't find 'release.properties', STOPPING build! |"
+echo "| To ignore this, add this to the environment:        |"
+echo "|  > export IGNORE_NO_RELEASE=true                    |"
+echo '\-----------------------------------------------------/'
+echo 🛑🛑🛑
+
+exit 1