refactor(bazel 8): point out ignore_directories function

docs/pnpm.md

@@ -72,7 +72,10 @@ npm_translate_lock(
     # Creates a new repository named "@npm" - you could choose any name you like
     name = "npm",
     pnpm_lock = "//:pnpm-lock.yaml",
-    # Recommended attribute that also checks the .bazelignore file
+    # Bazel 7.x and earlier: this attribute checks the .bazelignore file covers all node_modules folders.
+    # Bazel 8.0 can use https://bazel.build/rules/lib/globals/repo#ignore_directories:
+    #   ignore_directories(["**/node_modules"])
+    # in REPO.bazel
     verify_node_modules_ignored = "//:.bazelignore",
 )
 ```

npm/private/npm_translate_lock_helpers.bzl

@@ -529,11 +529,12 @@ pnpm install will create nested node_modules, but not all of them are ignored by
 We recommend that all node_modules folders in the source tree be ignored,
 to avoid Bazel printing confusing error messages.
 
-Either add line(s) to {bazelignore}:
+Possible fixes:
+  - Upgrade to Bazel 8.0 and use ignore_directories(["**/node_modules"]) in REPO.bazel
+  - Disable this check by removing `verify_node_modules_ignored` in `npm_translate_lock(name = "{repo}")`
+  - Add line(s) to {bazelignore}:
 
 {fixes}
-
-or disable this check by setting `verify_node_modules_ignored = None` in `npm_translate_lock(name = "{repo}")`
                 """.format(
                 fixes = "\n".join(missing_ignores),
                 bazelignore = rctx.attr.verify_node_modules_ignored,