Implement the "publish-action" action

src/version-utils.ts

@@ -0,0 +1,25 @@
+import semverParse from 'semver/functions/parse';
+import SemVer from 'semver/classes/semver';
+
+export function isStableSemverVersion(version: SemVer): boolean {
+    return version.prerelease.length === 0
+}
+
+export function getMajorTagFromFullTag(fullTag: string): string {
+    return fullTag.split('.')[0];
+}
+
+export function validateSemverVersionFromTag(tag: string): void {
+    const semverVersion = semverParse(tag);
+    if (!semverVersion) {
+        throw new Error(
+            `The '${tag}' doesn't satisfy semantic versioning specification`
+        );
+    }
+
+    if (!isStableSemverVersion(semverVersion)) {
+        throw new Error(
+            'It is not allowed to specify pre-release version to update the major tag'
+        );
+    }
+}