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node_modules/next/dist/esm/build/webpack/cache-invalidation.js

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+import fs from 'node:fs/promises';
+import path from 'node:path';
+const INVALIDATION_MARKER = '__nextjs_invalidated_cache';
+/**
+ * Atomically write an invalidation marker.
+ *
+ * Because attempting to delete currently open cache files could cause issues,
+ * actual deletion of files is deferred until the next start-up (in
+ * `checkFileSystemCacheInvalidationAndCleanup`).
+ *
+ * In the case that no database is currently open (e.g. via a separate CLI
+ * subcommand), you should call `cleanupFileSystemCache` *after* this to eagerly
+ * remove the cache files.
+ */ export async function invalidateFileSystemCache(cacheDirectory) {
+    let file;
+    try {
+        // We're just opening it so that `open()` creates the file.
+        file = await fs.open(path.join(cacheDirectory, INVALIDATION_MARKER), 'w');
+    // We don't currently write anything to the file, but we could choose to
+    // later, e.g. a reason for the invalidation.
+    } catch (err) {
+        // it's valid for the cache to not exist at all
+        if (err.code !== 'ENOENT') {
+            throw err;
+        }
+    } finally{
+        file == null ? void 0 : file.close();
+    }
+}
+/**
+ * Called during startup. See if the cache is in a partially-completed
+ * invalidation state. Finds and delete any invalidated cache files.
+ */ export async function checkFileSystemCacheInvalidationAndCleanup(cacheDirectory) {
+    const invalidated = await fs.access(path.join(cacheDirectory, INVALIDATION_MARKER)).then(()=>true, ()=>false);
+    if (invalidated) {
+        await cleanupFileSystemCache(cacheDirectory);
+    }
+}
+/**
+ * Helper for `checkFileSystemCacheInvalidationAndCleanup`. You can call this to
+ * explicitly clean up a database after running `invalidateFileSystemCache` when
+ * webpack is not running.
+ *
+ * You should not run this if the cache has not yet been invalidated, as this
+ * operation is not atomic and could result in a partially-deleted and corrupted
+ * database.
+ */ async function cleanupFileSystemCache(cacheDirectory) {
+    try {
+        await cleanupFileSystemCacheInner(cacheDirectory);
+    } catch (e) {
+        // generate a user-friendly error message
+        throw Object.defineProperty(new Error(`Unable to remove an invalidated webpack cache. If this issue persists ` + `you can work around it by deleting ${cacheDirectory}`, {
+            cause: e
+        }), "__NEXT_ERROR_CODE", {
+            value: "E710",
+            enumerable: false,
+            configurable: true
+        });
+    }
+}
+async function cleanupFileSystemCacheInner(cacheDirectory) {
+    const files = await fs.readdir(cacheDirectory);
+    // delete everything except the invalidation marker
+    await Promise.all(files.map((name)=>name !== INVALIDATION_MARKER ? fs.rm(path.join(cacheDirectory, name), {
+            force: true,
+            recursive: true,
+            maxRetries: 2
+        }) : null));
+    // delete the invalidation marker last, once we're sure everything is cleaned
+    // up
+    await fs.rm(path.join(cacheDirectory, INVALIDATION_MARKER), {
+        force: true,
+        maxRetries: 2
+    });
+}
+
+//# sourceMappingURL=cache-invalidation.js.map