scripts: add count-source-lines

package.json

@@ -8,7 +8,8 @@
   "scripts": {
     "dev": "vite --host 0.0.0.0",
     "preview": "vite preview",
-    "dist": "vite build"
+    "dist": "vite build",
+    "count-source-lines": "exec scripts/src-lc.sh"
   },
   "keywords": [],
   "author": "Rubicon",

scripts/src-lc.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+# Count the source lines.
+
+find . '(' ! -path "./node_modules/**" ')' \
+  -and '(' ! -path "./.git/**" ')' \
+  -and '(' ! -path "./*dist/**" ')' \
+  -and '(' ! -path "./bun.lockb" ')' \
+  -and '(' ! -path "./docs/**" ')' \
+  -type f -print0 \
+  | wc -l --files0-from=-