diff semver if package dependency is in directory, show tip

API.md

@@ -202,7 +202,8 @@ Return aggregated statistics about the library dataset, such as total counts of
 
 ## GET /api/library
 
-Lookup one or more libraries by npm package name. Endpoint can optionally perform a quick `check` to return existence flag only.
+Lookup one or more libraries by npm package name.
+Endpoint can optionally perform a quick `check` to return existence flag only, or when `version` is used as `check` value to return the latest version string when package is present in the directory.
 
 - Method: GET
 - Path: `/api/library`
@@ -213,6 +214,7 @@ Lookup one or more libraries by npm package name. Endpoint can optionally perfor
 ### Notes
 
 - If `check` is `true`, the response includes only information about existence for the specified package(s).
+- If `check` is `version`, the response includes only information about existence for the specified package(s), returning the latest version if package exists.
 - If `check` is `false` or not provided, the response includes full library data.
 
 ### Example
@@ -311,6 +313,16 @@ Lookup one or more libraries by npm package name. Endpoint can optionally perfor
   }
   ```
 
+- GET `/api/library?name=react&check=version`
+
+  Response:
+
+  ```json
+  {
+    "uniwind": "1.5.0"
+  }
+  ```
+
 ---
 
 ## GET /api/proxy/npm-stat

components/Package/DependenciesSection.tsx

@@ -10,14 +10,15 @@ type Props = {
   title: string;
   data?: Record<string, string | PeerDependencyData> | null;
   checkExistence?: boolean;
+  checkVersion?: boolean;
 };
 
-export default function DependenciesSection({ title, data, checkExistence }: Props) {
+export default function DependenciesSection({ title, data, checkExistence, checkVersion }: Props) {
   const noData = !data || Object.keys(data).length === 0;
 
   const { data: checkData } = useSWR(
     checkExistence && !noData
-      ? `/api/library?name=${Object.keys(data).join(',')}&check=true`
+      ? `/api/library?name=${Object.keys(data).join(',')}&check=${checkVersion ? 'version' : 'true'}`
       : null,
     (url: string) => fetch(url).then(res => res.json()),
     {
@@ -39,7 +40,7 @@ export default function DependenciesSection({ title, data, checkExistence }: Pro
             key={`${title.toLocaleLowerCase()}-${name}`}
             name={name}
             data={depData}
-            packageExists={checkData?.[name]}
+            packageVersion={checkData?.[name]}
           />
         ))}
     </CollapsibleSection>

components/Package/DependencyRow.tsx

@@ -1,5 +1,8 @@
 import { type ReactNode } from 'react';
 import { View } from 'react-native';
+import semverClean from 'semver/functions/clean';
+import semverDiff from 'semver/functions/diff';
+import semverGt from 'semver/functions/gt';
 
 import { A, HoverEffect, Label, P, useLayout } from '~/common/styleguide';
 import { Info, Logo } from '~/components/Icons';
@@ -10,13 +13,16 @@ import tw from '~/util/tailwind';
 type Props = {
   name: string;
   data: string | PeerDependencyData;
-  packageExists?: boolean;
+  packageVersion?: string | boolean;
 };
 
-export default function DependencyRow({ name, data, packageExists }: Props) {
+export default function DependencyRow({ name, data, packageVersion }: Props) {
   const { isSmallScreen } = useLayout();
   const isDataString = typeof data === 'string';
-  const versionLabel = getVersionLabel(isDataString ? data : data.version);
+  const versionLabel = getVersionLabel(
+    isDataString ? data : data.version,
+    typeof packageVersion === 'string' ? packageVersion : undefined
+  );
   const hasLongVersion = typeof versionLabel === 'string' && versionLabel.length > 18;
 
   return (
@@ -27,7 +33,7 @@ export default function DependencyRow({ name, data, packageExists }: Props) {
         isSmallScreen && tw`my-px`,
       ]}>
       <span style={tw`flex flex-shrink flex-row items-center gap-x-1.5 overflow-hidden pl-0.5`}>
-        {packageExists ? (
+        {packageVersion ? (
           <Tooltip
             side="left"
             trigger={
@@ -81,7 +87,7 @@ export default function DependencyRow({ name, data, packageExists }: Props) {
   );
 }
 
-function getVersionLabel(version: string): ReactNode {
+function getVersionLabel(version: string, latestVersion?: string): ReactNode {
   if (version.startsWith('http')) {
     return (
       <A href={version} style={tw`leading-tight`}>
@@ -95,7 +101,56 @@ function getVersionLabel(version: string): ReactNode {
     }
     return 'patched';
   }
-  return version;
+
+  if (latestVersion) {
+    const cleanVersion = semverClean(version.replace(/^[~^]/, ''));
+
+    if (!cleanVersion || semverGt(cleanVersion, latestVersion)) {
+      return version;
+    }
+
+    const diff = semverDiff(cleanVersion, latestVersion);
+    switch (diff) {
+      case 'patch':
+        return (
+          <Tooltip
+            sideOffset={-3}
+            trigger={
+              <span style={tw`cursor-pointer text-[#c99319] dark:text-[#dc9a00]`}>{version}</span>
+            }>
+            <Label style={tw`font-light text-white`}>
+              Patch update available: <span style={tw`font-medium`}>{latestVersion}</span>
+            </Label>
+          </Tooltip>
+        );
+      case 'minor':
+        return (
+          <Tooltip
+            sideOffset={-3}
+            trigger={<span style={tw`cursor-pointer text-[#ff5900]`}>{version}</span>}>
+            <Label style={tw`font-light text-white`}>
+              Minor update available: <span style={tw`font-medium`}>{latestVersion}</span>
+            </Label>
+          </Tooltip>
+        );
+      case 'major':
+        return (
+          <Tooltip
+            sideOffset={-3}
+            trigger={
+              <span style={tw`cursor-pointer text-[#e70a2f] dark:text-[#eb2d39]`}>{version}</span>
+            }>
+            <Label style={tw`font-light text-white`}>
+              Major update available: <span style={tw`font-medium`}>{latestVersion}</span>
+            </Label>
+          </Tooltip>
+        );
+      default:
+        return version;
+    }
+  } else {
+    return version;
+  }
 }
 
 function extractPatchedVersion(entry: string): string | null {

next.config.ts

@@ -16,6 +16,7 @@ const PACKAGES_TO_OPTIMIZE = [
   'react-native-svg',
   'react-native-web',
   'react-shiki',
+  'semver',
   'shiki/*',
   'twrnc',
 ];

package.json

@@ -27,15 +27,15 @@
     "@radix-ui/react-hover-card": "^1.1.15",
     "@radix-ui/react-tooltip": "^1.2.8",
     "@react-native-picker/picker": "^2.11.4",
-    "@sentry/react": "^10.43.0",
+    "@sentry/react": "^10.44.0",
     "@visx/gradient": "^3.12.0",
     "@visx/responsive": "^3.12.0",
     "@visx/xychart": "^3.12.0",
     "crypto-js": "^4.2.0",
     "es-toolkit": "^1.45.1",
-    "expo": "55.0.6",
+    "expo": "55.0.7",
     "expo-font": "^55.0.4",
-    "next": "^16.1.6",
+    "next": "^16.1.7",
     "node-emoji": "^2.2.0",
     "postcss": "^8.5.8",
     "react": "19.2.4",
@@ -51,18 +51,20 @@
     "rehype-sanitize": "^6.0.0",
     "remark-emoji": "^5.0.2",
     "remark-gfm": "^4.0.1",
+    "semver": "^7.7.4",
     "swr": "^2.4.1",
     "tailwindcss": "^3.4.19",
     "twrnc": "^4.16.0",
     "use-debounce": "^10.1.0"
   },
   "devDependencies": {
     "@expo/next-adapter": "^6.0.0",
-    "@next/bundle-analyzer": "^16.1.6",
+    "@next/bundle-analyzer": "^16.1.7",
     "@prettier/plugin-oxc": "^0.1.3",
     "@types/bun": "^1.3.10",
     "@types/crypto-js": "^4.2.2",
     "@types/react": "^19.2.14",
+    "@types/semver": "^7.7.1",
     "@vercel/blob": "^0.27.3",
     "ajv-cli": "^5.0.0",
     "browserslist": "^4.28.1",

pages/api/library/index.ts

@@ -1,7 +1,7 @@
 import { type NextApiRequest, type NextApiResponse } from 'next';
 
 import data from '~/assets/data.json';
-import { type DataAssetType } from '~/types';
+import { type DataAssetType, type LibraryType } from '~/types';
 import { parseQueryParams } from '~/util/queryParams';
 
 const DATASET = data as DataAssetType;
@@ -10,8 +10,6 @@ export default function handler(req: NextApiRequest, res: NextApiResponse) {
   const { name, check } = parseQueryParams(req.query);
 
   const packageNames = name ? name.toString().toLowerCase().trim().split(',') : undefined;
-  const checkOnly = Boolean(check);
-
   const libraries = DATASET.libraries.filter(library =>
     packageNames?.includes(library.npmPkg.toLowerCase())
   );
@@ -29,13 +27,18 @@ export default function handler(req: NextApiRequest, res: NextApiResponse) {
 
   res.statusCode = 200;
   res.json(
-    Object.fromEntries(
-      packageNames.map(name => [
-        name,
-        checkOnly
-          ? libraries.filter(library => name === library.npmPkg).length >= 1
-          : libraries.find(library => (name === library.npmPkg ? library : undefined)),
-      ])
-    )
+    Object.fromEntries(packageNames.map(name => [name, handleCheck(libraries, name, check)]))
   );
 }
+
+function handleCheck(libraries: LibraryType[], name: string, check?: string) {
+  switch (check) {
+    case 'version':
+      const lib = libraries.find(library => (name === library.npmPkg ? library : undefined));
+      return lib ? (lib.npm?.latestRelease ?? 'unknown') : undefined;
+    case 'true':
+      return libraries.some(library => name === library.npmPkg);
+    default:
+      return libraries.find(library => (name === library.npmPkg ? library : undefined));
+  }
+}

scenes/PackageOverviewScene.tsx

@@ -167,7 +167,12 @@ export default function PackageOverviewScene({
                 </ul>
               </CollapsibleSection>
             )}
-            <DependenciesSection title="Dependencies" data={dependencies} checkExistence />
+            <DependenciesSection
+              title="Dependencies"
+              data={dependencies}
+              checkExistence
+              checkVersion
+            />
             <DependenciesSection
               title="Peer dependencies"
               data={mergePeerDependenciesData(registryData)}