Add import.meta.main guard and export core functions in resolve-previous-release-tag.ts

Author: cursoragent

scripts/resolve-previous-release-tag.ts

@@ -24,10 +24,10 @@ interface NightlyVersion {
   readonly runNumber: number;
 }
 
-const parseNumericIdentifier = (identifier: string): number | undefined =>
+export const parseNumericIdentifier = (identifier: string): number | undefined =>
   /^\d+$/.test(identifier) ? Number(identifier) : undefined;
 
-const comparePrereleaseIdentifiers = (left: string, right: string): number => {
+export const comparePrereleaseIdentifiers = (left: string, right: string): number => {
   const leftNumeric = parseNumericIdentifier(left);
   const rightNumeric = parseNumericIdentifier(right);
 
@@ -43,7 +43,7 @@ const comparePrereleaseIdentifiers = (left: string, right: string): number => {
   return left.localeCompare(right);
 };
 
-const compareStableVersions = (left: StableVersion, right: StableVersion): number => {
+export const compareStableVersions = (left: StableVersion, right: StableVersion): number => {
   if (left.major !== right.major) return left.major - right.major;
   if (left.minor !== right.minor) return left.minor - right.minor;
   if (left.patch !== right.patch) return left.patch - right.patch;
@@ -68,7 +68,7 @@ const compareStableVersions = (left: StableVersion, right: StableVersion): numbe
   return 0;
 };
 
-const parseStableTag = (tag: string): StableVersion | undefined => {
+export const parseStableTag = (tag: string): StableVersion | undefined => {
   const match = /^v(\d+)\.(\d+)\.(\d+)(?:-([0-9A-Za-z.-]+))?(?:\+[0-9A-Za-z.-]+)?$/.exec(tag);
   if (!match) return undefined;
 
@@ -83,15 +83,15 @@ const parseStableTag = (tag: string): StableVersion | undefined => {
   };
 };
 
-const compareNightlyVersions = (left: NightlyVersion, right: NightlyVersion): number => {
+export const compareNightlyVersions = (left: NightlyVersion, right: NightlyVersion): number => {
   if (left.major !== right.major) return left.major - right.major;
   if (left.minor !== right.minor) return left.minor - right.minor;
   if (left.patch !== right.patch) return left.patch - right.patch;
   if (left.date !== right.date) return left.date - right.date;
   return left.runNumber - right.runNumber;
 };
 
-const parseNightlyTag = (tag: string): NightlyVersion | undefined => {
+export const parseNightlyTag = (tag: string): NightlyVersion | undefined => {
   const match = /^nightly-v(\d+)\.(\d+)\.(\d+)-nightly\.(\d{8})\.(\d+)$/.exec(tag);
   if (!match) return undefined;
 
@@ -107,7 +107,7 @@ const parseNightlyTag = (tag: string): NightlyVersion | undefined => {
   };
 };
 
-const resolvePreviousReleaseTag = (
+export const resolvePreviousReleaseTag = (
   channel: ReleaseChannel,
   currentTag: string,
   tags: ReadonlyArray<string>,
@@ -196,8 +196,10 @@ const command = Command.make(
     ),
 ).pipe(Command.withDescription("Resolve the previous release tag for a stable or nightly series."));
 
-Command.run(command, { version: "0.0.0" }).pipe(
-  Effect.scoped,
-  Effect.provide(NodeServices.layer),
-  NodeRuntime.runMain,
-);
+if (import.meta.main) {
+  Command.run(command, { version: "0.0.0" }).pipe(
+    Effect.scoped,
+    Effect.provide(NodeServices.layer),
+    NodeRuntime.runMain,
+  );
+}