fix: coerce node version so pre, nightly, alpha, and beta versions of…

… node can be used with profiler. (#223)

* fix: make version restrictions a warning instead of an error

* coerce version

ts/src/index.ts

@@ -127,7 +127,10 @@ async function initConfigMetadata(config: ProfilerConfig):
  * rejected promise.
  */
 export async function createProfiler(config: Config): Promise<Profiler> {
-  if (!semver.satisfies(process.version, pjson.engines.node)) {
+  // Coerce version if possible, to remove any pre-release, alpha, beta, etc
+  // tags.
+  const version = semver.coerce(process.version) || process.version;
+  if (!semver.satisfies(version, pjson.engines.node)) {
     throw new Error(
         `Could not start profiler: node version ${process.version}` +
         ` does not satisfies "${pjson.engines.node}"`);
@@ -177,7 +180,6 @@ function logError(msg: string, config: Config) {
   logger.error(msg);
 }
 
-
 /**
  * For debugging purposes. Collects profiles and discards the collected
  * profiles.