polish code

dist/setup/index.js

@@ -63236,17 +63236,7 @@ function getGo(versionSpec, checkLatest, auth, arch = os_1.default.arch()) {
             manifest = yield getManifest(auth);
             let stableVersion = yield resolveStableVersionInput(versionSpec, arch, osPlat, manifest);
             if (!stableVersion) {
-                let archFilter = sys.getArch(arch);
+                stableVersion = yield resolveStableVersionDist(versionSpec, arch);
-                let platFilter = sys.getPlatform();
-                const dlUrl = 'https://golang.org/dl/?mode=json&include=all';
-                let candidates = yield module.exports.getVersionsDist(dlUrl);
-                if (!candidates) {
-                    throw new Error(`golang download url did not return results`);
-                }
-                const fixedCandidates = candidates.map(item => {
-                    return Object.assign(Object.assign({}, item), { version: makeSemver(item.version) });
-                });
-                stableVersion = yield resolveStableVersionInput(versionSpec, archFilter, platFilter, fixedCandidates);
                 if (!stableVersion) {
                     throw new Error(`Unable to find Go version '${versionSpec}' for platform ${osPlat} and architecture ${arch}.`);
                 }
@@ -63489,6 +63479,22 @@ function parseGoVersionFile(versionFilePath) {
     return contents.trim();
 }
 exports.parseGoVersionFile = parseGoVersionFile;
+function resolveStableVersionDist(versionSpec, arch) {
+    return __awaiter(this, void 0, void 0, function* () {
+        let archFilter = sys.getArch(arch);
+        let platFilter = sys.getPlatform();
+        const dlUrl = 'https://golang.org/dl/?mode=json&include=all';
+        let candidates = yield module.exports.getVersionsDist(dlUrl);
+        if (!candidates) {
+            throw new Error(`golang download url did not return results`);
+        }
+        const fixedCandidates = candidates.map(item => {
+            return Object.assign(Object.assign({}, item), { version: makeSemver(item.version) });
+        });
+        const stableVersion = yield resolveStableVersionInput(versionSpec, archFilter, platFilter, fixedCandidates);
+        return stableVersion;
+    });
+}
 function resolveStableVersionInput(versionSpec, arch, platform, manifest) {
     return __awaiter(this, void 0, void 0, function* () {
         const releases = manifest

src/installer.ts

@@ -52,30 +52,7 @@ export async function getGo(
     );
 
     if (!stableVersion) {
-      let archFilter = sys.getArch(arch);
+      stableVersion = await resolveStableVersionDist(versionSpec, arch);
-      let platFilter = sys.getPlatform();
-      const dlUrl: string = 'https://golang.org/dl/?mode=json&include=all';
-      let candidates:
-        | IGoVersion[]
-        | null = await module.exports.getVersionsDist(dlUrl);
-      if (!candidates) {
-        throw new Error(`golang download url did not return results`);
-      }
-
-      const fixedCandidates = candidates.map(item => {
-        return {
-          ...item,
-          version: makeSemver(item.version)
-        };
-      });
-
-      stableVersion = await resolveStableVersionInput(
-        versionSpec,
-        archFilter,
-        platFilter,
-        fixedCandidates
-      );
-
       if (!stableVersion) {
         throw new Error(
           `Unable to find Go version '${versionSpec}' for platform ${osPlat} and architecture ${arch}.`
@@ -389,6 +366,34 @@ export function parseGoVersionFile(versionFilePath: string): string {
   return contents.trim();
 }
 
+async function resolveStableVersionDist(versionSpec: string, arch: string) {
+  let archFilter = sys.getArch(arch);
+  let platFilter = sys.getPlatform();
+  const dlUrl: string = 'https://golang.org/dl/?mode=json&include=all';
+  let candidates: IGoVersion[] | null = await module.exports.getVersionsDist(
+    dlUrl
+  );
+  if (!candidates) {
+    throw new Error(`golang download url did not return results`);
+  }
+
+  const fixedCandidates = candidates.map(item => {
+    return {
+      ...item,
+      version: makeSemver(item.version)
+    };
+  });
+
+  const stableVersion = await resolveStableVersionInput(
+    versionSpec,
+    archFilter,
+    platFilter,
+    fixedCandidates
+  );
+
+  return stableVersion;
+}
+
 export async function resolveStableVersionInput(
   versionSpec: string,
   arch: string,