perf: use osv batch api for dep analysis

app/composables/useNpmRegistry.ts

@@ -9,6 +9,7 @@ import type {
   PackageVersionInfo,
 } from '#shared/types'
 import type { ReleaseType } from 'semver'
+import { mapWithConcurrency } from '#shared/utils/async'
 import { maxSatisfying, prerelease, major, minor, diff, gt, compare } from 'semver'
 import { isExactVersion } from '~/utils/versions'
 import { extractInstallScriptsInfo } from '~/utils/install-scripts'
@@ -546,34 +547,28 @@ export function useOrgPackages(orgName: MaybeRefOrGetter<string>) {
 
       // Fetch packuments and downloads in parallel
       const [packuments, downloads] = await Promise.all([
-        // Fetch packuments in parallel (with concurrency limit)
+        // Fetch packuments with concurrency limit
         (async () => {
-          const concurrency = 10
-          const results: MinimalPackument[] = []
-          for (let i = 0; i < packageNames.length; i += concurrency) {
-            const batch = packageNames.slice(i, i + concurrency)
-            const batchResults = await Promise.all(
-              batch.map(async name => {
-                try {
-                  const encoded = encodePackageName(name)
-                  const { data: pkg } = await cachedFetch<MinimalPackument>(
-                    `${NPM_REGISTRY}/${encoded}`,
-                    { signal },
-                  )
-                  return pkg
-                } catch {
-                  return null
-                }
-              }),
-            )
-            for (const pkg of batchResults) {
-              // Filter out any unpublished packages (missing dist-tags)
-              if (pkg && pkg['dist-tags']) {
-                results.push(pkg)
+          const results = await mapWithConcurrency(
+            packageNames,
+            async name => {
+              try {
+                const encoded = encodePackageName(name)
+                const { data: pkg } = await cachedFetch<MinimalPackument>(
+                  `${NPM_REGISTRY}/${encoded}`,
+                  { signal },
+                )
+                return pkg
+              } catch {
+                return null
               }
-            }
-          }
-          return results
+            },
+            10,
+          )
+          // Filter out any unpublished packages (missing dist-tags)
+          return results.filter(
+            (pkg): pkg is MinimalPackument => pkg !== null && !!pkg['dist-tags'],
+          )
         })(),
         // Fetch downloads in bulk
         fetchBulkDownloads(packageNames, { signal }),
@@ -772,23 +767,20 @@ export function useOutdatedDependencies(
       return
     }
 
-    const results: Record<string, OutdatedDependencyInfo> = {}
     const entries = Object.entries(deps)
-    const batchSize = 5
-
-    for (let i = 0; i < entries.length; i += batchSize) {
-      const batch = entries.slice(i, i + batchSize)
-      const batchResults = await Promise.all(
-        batch.map(async ([name, constraint]) => {
-          const info = await checkDependencyOutdated(cachedFetch, name, constraint)
-          return [name, info] as const
-        }),
-      )
+    const batchResults = await mapWithConcurrency(
+      entries,
+      async ([name, constraint]) => {
+        const info = await checkDependencyOutdated(cachedFetch, name, constraint)
+        return [name, info] as const
+      },
+      5,
+    )
 
-      for (const [name, info] of batchResults) {
-        if (info) {
-          results[name] = info
-        }
+    const results: Record<string, OutdatedDependencyInfo> = {}
+    for (const [name, info] of batchResults) {
+      if (info) {
+        results[name] = info
       }
     }
 

server/utils/dependency-analysis.ts

@@ -1,5 +1,6 @@
 import type {
   OsvQueryResponse,
+  OsvBatchResponse,
   OsvVulnerability,
   OsvSeverityLevel,
   VulnerabilitySummary,
@@ -8,31 +9,83 @@ import type {
   VulnerabilityTreeResult,
   DeprecatedPackageInfo,
 } from '#shared/types/dependency-analysis'
+import { mapWithConcurrency } from '#shared/utils/async'
 import { resolveDependencyTree } from './dependency-resolver'
 
-/** Result of a single OSV query */
-type OsvQueryResult = { status: 'ok'; data: PackageVulnerabilityInfo | null } | { status: 'error' }
+/** Maximum concurrent requests for fetching vulnerability details */
+const OSV_DETAIL_CONCURRENCY = 25
+
+/** Package info needed for OSV queries */
+interface PackageQueryInfo {
+  name: string
+  version: string
+  depth: DependencyDepth
+  path: string[]
+}
+
+/**
+ * Query OSV batch API to find which packages have vulnerabilities.
+ * Returns indices of packages that have vulnerabilities (for follow-up detailed queries).
+ * @see https://google.github.io/osv.dev/post-v1-querybatch/
+ */
+async function queryOsvBatch(
+  packages: PackageQueryInfo[],
+): Promise<{ vulnerableIndices: number[]; failed: boolean }> {
+  if (packages.length === 0) return { vulnerableIndices: [], failed: false }
+
+  try {
+    const response = await $fetch<OsvBatchResponse>('https://api.osv.dev/v1/querybatch', {
+      method: 'POST',
+      body: {
+        queries: packages.map(pkg => ({
+          package: { name: pkg.name, ecosystem: 'npm' },
+          version: pkg.version,
+        })),
+      },
+    })
+
+    // Find indices of packages that have vulnerabilities
+    const vulnerableIndices: number[] = []
+    for (let i = 0; i < response.results.length; i++) {
+      const result = response.results[i]
+      if (result?.vulns && result.vulns.length > 0) {
+        vulnerableIndices.push(i)
+      }
+      // Warn if pagination token present (>1000 vulns for single query or >3000 total)
+      // This is extremely unlikely for npm packages but log for visibility
+      if (result?.next_page_token) {
+        // oxlint-disable-next-line no-console -- warn about paginated results
+        console.warn(
+          `[dep-analysis] OSV batch result has pagination token for package index ${i} ` +
+            `(${packages[i]?.name}@${packages[i]?.version}) - some vulnerabilities may be missing`,
+        )
+      }
+    }
+
+    return { vulnerableIndices, failed: false }
+  } catch (error) {
+    // oxlint-disable-next-line no-console -- log OSV API failures for debugging
+    console.warn(`[dep-analysis] OSV batch query failed:`, error)
+    return { vulnerableIndices: [], failed: true }
+  }
+}
 
 /**
- * Query OSV for vulnerabilities in a package
+ * Query OSV for full vulnerability details for a single package.
+ * Only called for packages known to have vulnerabilities.
  */
-async function queryOsv(
-  name: string,
-  version: string,
-  depth: DependencyDepth,
-  path: string[],
-): Promise<OsvQueryResult> {
+async function queryOsvDetails(pkg: PackageQueryInfo): Promise<PackageVulnerabilityInfo | null> {
   try {
     const response = await $fetch<OsvQueryResponse>('https://api.osv.dev/v1/query', {
       method: 'POST',
       body: {
-        package: { name, ecosystem: 'npm' },
-        version,
+        package: { name: pkg.name, ecosystem: 'npm' },
+        version: pkg.version,
       },
     })
 
     const vulns = response.vulns || []
-    if (vulns.length === 0) return { status: 'ok', data: null }
+    if (vulns.length === 0) return null
 
     const counts = { total: vulns.length, critical: 0, high: 0, moderate: 0, low: 0 }
     const vulnerabilities: VulnerabilitySummary[] = []
@@ -65,11 +118,18 @@ async function queryOsv(
       })
     }
 
-    return { status: 'ok', data: { name, version, depth, path, vulnerabilities, counts } }
+    return {
+      name: pkg.name,
+      version: pkg.version,
+      depth: pkg.depth,
+      path: pkg.path,
+      vulnerabilities,
+      counts,
+    }
   } catch (error) {
     // oxlint-disable-next-line no-console -- log OSV API failures for debugging
-    console.warn(`[dep-analysis] OSV query failed for ${name}@${version}:`, error)
-    return { status: 'error' }
+    console.warn(`[dep-analysis] OSV detail query failed for ${pkg.name}@${pkg.version}:`, error)
+    return null
   }
 }
 
@@ -110,17 +170,24 @@ function getSeverityLevel(vuln: OsvVulnerability): OsvSeverityLevel {
 
 /**
  * Analyze entire dependency tree for vulnerabilities and deprecated packages.
+ * Uses OSV batch API for efficient vulnerability discovery, then fetches
+ * full details only for packages with known vulnerabilities.
  */
 export const analyzeDependencyTree = defineCachedFunction(
   async (name: string, version: string): Promise<VulnerabilityTreeResult> => {
     // Resolve all packages in the tree with depth tracking
     const resolved = await resolveDependencyTree(name, version, { trackDepth: true })
 
-    // Convert to array for OSV querying
-    const packages = [...resolved.values()]
+    // Convert to array with query info
+    const packages: PackageQueryInfo[] = [...resolved.values()].map(pkg => ({
+      name: pkg.name,
+      version: pkg.version,
+      depth: pkg.depth!,
+      path: pkg.path || [],
+    }))
 
     // Collect deprecated packages (no API call needed - already in packument data)
-    const deprecatedPackages: DeprecatedPackageInfo[] = packages
+    const deprecatedPackages: DeprecatedPackageInfo[] = [...resolved.values()]
       .filter(pkg => pkg.deprecated)
       .map(pkg => ({
         name: pkg.name,
@@ -135,22 +202,27 @@ export const analyzeDependencyTree = defineCachedFunction(
         return depthOrder[a.depth] - depthOrder[b.depth]
       })
 
-    // Query OSV for all packages in parallel batches
-    const vulnerablePackages: PackageVulnerabilityInfo[] = []
-    let failedQueries = 0
-    const batchSize = 10
+    // Step 1: Use batch API to find which packages have vulnerabilities
+    // This is much faster than individual queries - one request for all packages
+    const { vulnerableIndices, failed: batchFailed } = await queryOsvBatch(packages)
+
+    let vulnerablePackages: PackageVulnerabilityInfo[] = []
+    let failedQueries = batchFailed ? packages.length : 0
 
-    for (let i = 0; i < packages.length; i += batchSize) {
-      const batch = packages.slice(i, i + batchSize)
-      const results = await Promise.all(
-        batch.map(pkg => queryOsv(pkg.name, pkg.version, pkg.depth!, pkg.path || [])),
+    if (!batchFailed && vulnerableIndices.length > 0) {
+      // Step 2: Fetch full vulnerability details only for packages with vulns
+      // This is typically a small fraction of total packages
+      const detailResults = await mapWithConcurrency(
+        vulnerableIndices,
+        i => queryOsvDetails(packages[i]!),
+        OSV_DETAIL_CONCURRENCY,
       )
 
-      for (const result of results) {
-        if (result.status === 'error') {
+      for (const result of detailResults) {
+        if (result) {
+          vulnerablePackages.push(result)
+        } else {
           failedQueries++
-        } else if (result.data) {
-          vulnerablePackages.push(result.data)
         }
       }
     }
@@ -175,11 +247,11 @@ export const analyzeDependencyTree = defineCachedFunction(
       totalCounts.low += pkg.counts.low
     }
 
-    // Log critical failures (>50% of queries failed)
-    if (failedQueries > 0 && failedQueries > packages.length / 2) {
+    // Log if batch query failed entirely
+    if (batchFailed) {
       // oxlint-disable-next-line no-console -- critical error logging
       console.error(
-        `[dep-analysis] Critical: ${failedQueries}/${packages.length} OSV queries failed for ${name}@${version}`,
+        `[dep-analysis] Critical: OSV batch query failed for ${name}@${version} (${packages.length} packages)`,
       )
     }
 
@@ -197,6 +269,6 @@ export const analyzeDependencyTree = defineCachedFunction(
     maxAge: 60 * 60,
     swr: true,
     name: 'dependency-analysis',
-    getKey: (name: string, version: string) => `v1:${name}@${version}`,
+    getKey: (name: string, version: string) => `v2:${name}@${version}`,
   },
 )