2 files changed, 57 insertions, 0 deletions
diff --git a/packages/util/src/binary.ts b/packages/util/src/binary.ts
new file mode 100644
index 000000000..3d8f61851
--- /dev/null
+++ b/packages/util/src/binary.ts
@@ -0,0 +1,41 @@
+export namespace Binary {
+  export function search<T>(array: T[], id: string, compare: (item: T) => string): { found: boolean; index: number } {
+    let left = 0
+    let right = array.length - 1
+
+    while (left <= right) {
+      const mid = Math.floor((left + right) / 2)
+      const midId = compare(array[mid])
+
+      if (midId === id) {
+        return { found: true, index: mid }
+      } else if (midId < id) {
+        left = mid + 1
+      } else {
+        right = mid - 1
+      }
+    }
+
+    return { found: false, index: left }
+  }
+
+  export function insert<T>(array: T[], item: T, compare: (item: T) => string): T[] {
+    const id = compare(item)
+    let left = 0
+    let right = array.length
+
+    while (left < right) {
+      const mid = Math.floor((left + right) / 2)
+      const midId = compare(array[mid])
+
+      if (midId < id) {
+        left = mid + 1
+      } else {
+        right = mid
+      }
+    }
+
+    array.splice(left, 0, item)
+    return array
+  }
+}
diff --git a/packages/util/src/path.ts b/packages/util/src/path.ts
new file mode 100644
index 000000000..fbb84878d
--- /dev/null
+++ b/packages/util/src/path.ts
@@ -0,0 +1,16 @@
+export function getFilename(path: string) {
+  if (!path) return ""
+  const trimmed = path.replace(/[\/]+$/, "")
+  const parts = trimmed.split("/")
+  return parts[parts.length - 1] ?? ""
+}
+
+export function getDirectory(path: string) {
+  const parts = path.split("/")
+  return parts.slice(0, parts.length - 1).join("/") + "/"
+}
+
+export function getFileExtension(path: string) {
+  const parts = path.split(".")
+  return parts[parts.length - 1]
+}