Export VERSION information

scripts/release

@@ -1,4 +1,6 @@
 #!/usr/bin/env bash
+./scripts/version || exit $?
+
 npm run build
 npm run docs
 npm run site

scripts/tag

@@ -1,10 +1,7 @@
 #!/usr/bin/env bash
+./scripts/version || exit $?
 
 PACKAGE_VERSION=$(node -p "require('./package.json').version")
 
-if [ $(git tag -l "$PACKAGE_VERSION") ]; then
-  echo "tag already exists"
-else
-  git tag $PACKAGE_VERSION
-  git push origin master $PACKAGE_VERSION 
-fi
+git tag $PACKAGE_VERSION
+git push origin master $PACKAGE_VERSION

scripts/version

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+abort() {
+  echo "ERROR: $1"
+  exit 1
+}
+
+PACKAGE_VERSION=$(node -p "require('./package.json').version")
+PACKAGE_LOCK_VERSION=$(node -p "require('./package-lock.json').version")
+EXPORTED_VERSION=$(grep -oP "(?<=const VERSION = \").*(?=\";)" ./src/luxon.js)
+
+if [ $PACKAGE_VERSION != $PACKAGE_LOCK_VERSION ]; then
+  abort "package-lock.json's version differs from package.json's"
+elif [ $PACKAGE_VERSION != $EXPORTED_VERSION ]; then
+  abort "exported version differs from package.json's"
+elif [ $(git tag -l "$PACKAGE_VERSION") ]; then
+  abort "tag already exists"
+fi

src/luxon.js

@@ -9,7 +9,10 @@ import InvalidZone from "./zones/invalidZone.js";
 import LocalZone from "./zones/localZone.js";
 import Settings from "./settings.js";
 
+const VERSION = "1.25.0";
+
 export {
+  VERSION,
   DateTime,
   Duration,
   Interval,