Add exclude()

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

@@ -1,2 +1,2 @@
-export { map } from './map.js'
+export { map, exclude } from './map.js'
 export { pick } from './pick.js'

src/config/normalize/lib/star_dot_path_utils/map.js

@@ -1,6 +1,6 @@
 // We split the core methods of `star_dot_path` to keep it small, and provide
 // additional utilities built on top of it.
-import { list, get, set } from '../star_dot_path/main.js'
+import { list, get, set, remove } from '../star_dot_path/main.js'
 
 // Map values matching a query
 export const map = function (target, queryOrPath, mapFunc) {
@@ -13,3 +13,14 @@ const mapEntry = function (mapFunc, target, { path, query }) {
   const mappedValue = mapFunc({ path, query, value })
   return set(target, path, mappedValue)
 }
+
+// Remove values matching a query
+export const exclude = function (target, queryOrPath, condition) {
+  const entries = list(target, queryOrPath)
+  return entries.reduceRight(excludeEntry.bind(undefined, condition), target)
+}
+
+const excludeEntry = function (condition, target, { path, query }) {
+  const value = get(target, path)
+  return condition({ path, query, value }) ? remove(target, path) : target
+}