Add include()

src/config/normalize/lib/wild_wild_path_utils/main.js

@@ -1,3 +1,3 @@
 export { exclude } from './exclude.js'
 export { map } from './map.js'
-export { pick } from './pick.js'
+export { pick, include } from './pick.js'

src/config/normalize/lib/wild_wild_path_utils/pick.js

@@ -11,3 +11,19 @@ export const pick = function (target, queryOrPath) {
 const pickEntry = function (target, { path, value }) {
   return set(target, path, value)
 }
+
+// Remove values matching a query
+export const include = function (target, queryOrPath, condition) {
+  const entries = listExisting(target, queryOrPath)
+  return entries.reduce(includeEntry.bind(undefined, condition), {})
+}
+
+const includeEntry = function (
+  condition,
+  target,
+  { path, query, value, missing },
+) {
+  return condition({ path, query, value, missing })
+    ? set(target, path, value)
+    : target
+}