add CLI

.changeset/great-toes-remain.md

@@ -0,0 +1,5 @@
+---
+"@beequeue/gmd": minor
+---
+
+Added a CLI

README.md

@@ -8,6 +8,24 @@ A library for parsing and serializing GMD files for the MT Framework engine, mor
 
 Largely based on the work in [onepiecefreak3/GMDConverter](https://github.com/onepiecefreak3/GMDConverter).
 
+## Usage (CLI)
+
+```sh
+pnpm install -g @beequeue/gmd
+gmd --help
+```
+
+The input can be a file, directory, or glob pattern.
+
+By default the output will be written to the same directory as the input file.
+
+`--option` can be used to change this to a specific directory.
+
+```sh
+gmd decode --output ./output path/to/files/**/*.gmd
+gmd encode ./output/**/*
+```
+
 ## Usage
 
 ```typescript

src/cli/index.ts

@@ -75,7 +75,9 @@ if (isGlob(input) || checkIfDir(input)) {
 
   let finish: APIBuilder<PathsOutput>
   if (checkIfDir(input)) {
-    finish = builder.filter((file) => file.endsWith(".gmd")).crawl(input)
+    finish = builder
+      .filter((file) => file.endsWith(command === "decode" ? ".gmd" : ".gmd.json"))
+      .crawl(input)
   } else {
     const { base, glob } = pico.scan(input)
     finish = builder.glob(glob).crawl(base)