docs: allow alpha version to be considered latest on main branch

Author: mlaursen

apps/docs/scripts/createEnv.ts

@@ -30,6 +30,7 @@ const env = {
   NEXT_PUBLIC_BASE_URL: baseUrl,
   NEXT_PUBLIC_GITHUB_URL: githubUrl,
   NEXT_PUBLIC_GITHUB_FILE_LINK: `${githubUrl}/blob/${commit}`,
+  NEXT_PUBLIC_BRANCH_NAME: branchName,
   NEXT_PUBLIC_RMD_VERSION: packageJson.version,
   NEXT_PUBLIC_ALGOLIA_APP_ID: "D8A7D4VBAW",
   NEXT_PUBLIC_ALGOLIA_API_KEY: "9a93702ac5feb1874e6ecc334127c069",

apps/docs/src/components/MainLayout/VersionDropdown.tsx

@@ -6,7 +6,7 @@ import { cnb } from "cnbuilder";
 import { type ReactElement } from "react";
 
 import { DISPLAY_NONE_PHONE } from "@/constants/classnames.js";
-import { RMD_VERSION } from "@/constants/env.js";
+import { BRANCH_NAME, RMD_VERSION } from "@/constants/env.js";
 import { semver } from "@/utils/semver.js";
 
 import { VersionMenuItem } from "./VersionMenuItem.jsx";
@@ -19,7 +19,7 @@ export function VersionDropdown(props: VersionDropdownProps): ReactElement {
   const { isHiddenOnPhone } = props;
 
   const { major, minor, patch, alpha } = semver(RMD_VERSION);
-  const isAlphaPreview = alpha !== null;
+  const isAlphaPreview = alpha !== null && BRANCH_NAME !== "main";
   const isMajorPreview = minor === 0 && patch === 0 && isAlphaPreview;
   const previousCount = major - 1;
 

apps/docs/src/constants/env.ts

@@ -7,6 +7,7 @@ declare global {
       NEXT_PUBLIC_GITHUB_URL: string;
       NEXT_PUBLIC_GITHUB_FILE_LINK: string;
       NEXT_PUBLIC_RMD_VERSION: string;
+      NEXT_PUBLIC_BRANCH_NAME: string;
       NEXT_PUBLIC_GTAG_ID?: string;
 
       NEXT_PUBLIC_ALGOLIA_APP_ID: string;
@@ -34,6 +35,7 @@ export const GTAG_ID = process.env.NEXT_PUBLIC_GTAG_ID;
 export const BASE_URL = process.env.NEXT_PUBLIC_BASE_URL;
 export const GITHUB_URL = process.env.NEXT_PUBLIC_GITHUB_URL;
 export const GITHUB_LINK_URL = process.env.NEXT_PUBLIC_GITHUB_FILE_LINK;
+export const BRANCH_NAME = process.env.NEXT_PUBLIC_BRANCH_NAME;
 export const RMD_VERSION = process.env.NEXT_PUBLIC_RMD_VERSION;
 
 export const ALGOLIA_APP_ID = process.env.NEXT_PUBLIC_ALGOLIA_APP_ID;