commands: create a dedicated commands directory

2024-06-17 15:22:36 +08:00
parent fb6a75cb27
commit ca6dafa5f9
6 changed files with 248 additions and 151 deletions
--- a/commands/common.ts
+++ b/commands/common.ts
@@ -0,0 +1,10 @@
+export function undefList<T, U>(opt: T | undefined, fn: (opt: T) => U) {
+    return opt === undefined ? [] : fn(opt)
+}
+
+export const optFlag = (flag: string, opt: string | undefined) => undefList(opt, opt => [flag, opt])
+
+/**
+ * Generate a switch flag, like "--rebuild", "--nobuild"
+ */
+export const optSwitch = (flag: string, opt: boolean | undefined) => undefList(opt, opt => opt ? [flag] : [])