fix: exclude musl binaries from function bundle when building on Netlify with pnpm

src/build/content/server.ts

@@ -299,7 +299,13 @@ export const copyNextDependencies = async (ctx: PluginContext): Promise<void> =>
       }
       const src = join(ctx.standaloneDir, entry)
       const dest = join(ctx.serverHandlerDir, entry)
-      await cp(src, dest, { recursive: true, verbatimSymlinks: true, force: true })
+      const filter = ctx.constants.IS_LOCAL ? undefined : nodeModulesFilter
+      await cp(src, dest, {
+        recursive: true,
+        verbatimSymlinks: true,
+        force: true,
+        filter,
+      })
 
       if (entry === 'node_modules') {
         await recreateNodeModuleSymlinks(ctx.resolveFromSiteDir('node_modules'), dest)
@@ -438,3 +444,24 @@ export const verifyHandlerDirStructure = async (ctx: PluginContext) => {
     )
   }
 }
+
+// This is a workaround for Next.js installations in a pnpm+glibc context
+// Patch required due to an intermittent upstream issue in the npm/pnpm ecosystem
+// https://github.com/pnpm/pnpm/issues/9654
+// https://github.com/pnpm/pnpm/issues/5928
+// https://github.com/pnpm/pnpm/issues/7362 (persisting even though ticket is closed)
+const nodeModulesFilter = async (sourcePath: string) => {
+  // Filtering rule for the following packages:
+  // - @rspack+binding-linux-x64-musl
+  // - @swc+core-linux-x64-musl
+  // - @img+sharp-linuxmusl-x64
+  // - @img+sharp-libvips-linuxmusl-x64
+  if (
+    sourcePath.includes('.pnpm') &&
+    (sourcePath.includes('linuxmusl-x64') || sourcePath.includes('linux-x64-musl'))
+  ) {
+    return false
+  }
+
+  return true
+}

src/build/functions/edge.ts

@@ -313,17 +313,11 @@ const buildHandlerDefinition = (
   ctx: PluginContext,
   def: EdgeOrNodeMiddlewareDefinition,
 ): Array<ManifestFunction> => {
-  const functionHandlerName = getHandlerName({ name: def.name })
-  const functionName = 'Next.js Middleware Handler'
-  const cache = def.name.endsWith('middleware') ? undefined : ('manual' as const)
-  const generator = `${ctx.pluginName}@${ctx.pluginVersion}`
-
   return augmentMatchers(def.matchers, ctx).map((matcher) => ({
-    function: functionHandlerName,
-    name: functionName,
+    function: getHandlerName({ name: def.name }),
+    name: 'Next.js Middleware Handler',
     pattern: matcher.regexp,
-    cache,
-    generator,
+    generator: `${ctx.pluginName}@${ctx.pluginVersion}`,
   }))
 }
 

src/build/plugin-context.ts

@@ -44,13 +44,13 @@ export interface ExportDetail {
 }
 
 export class PluginContext {
+  constants: NetlifyPluginConstants
   featureFlags: NetlifyPluginOptions['featureFlags']
   netlifyConfig: NetlifyPluginOptions['netlifyConfig']
   pluginName: string
   pluginVersion: string
   utils: NetlifyPluginUtils
 
-  private constants: NetlifyPluginConstants
   private packageJSON: { name: string; version: string } & Record<string, unknown>
 
   /** Absolute path of the next runtime plugin directory */