1 files changed, 35 insertions, 0 deletions
diff --git a/scripts/trim-deps.mjs b/scripts/trim-deps.mjs
new file mode 100644
index 0000000000..2983f28cb4
--- /dev/null
+++ b/scripts/trim-deps.mjs
@@ -0,0 +1,35 @@
+// trims dependencies for production
+// only run after a full build
+
+import fs from 'node:fs'
+
+const checks = ['dependencies', 'optionalDependencies', 'devDependencies']
+
+function removeDeps(path, patterns) {
+	let pkg = JSON.parse(fs.readFileSync(path));
+	for (const pattern of patterns) {
+		if (typeof pattern === 'string') {
+			for (const check of checks) {
+				if (pkg[check] !== undefined && pkg[check][pattern] !== undefined) {
+					delete pkg[check][pattern];
+				}
+			}
+		} else if (pattern instanceof RegExp) {
+			for (const check of checks) {
+				if (pkg[check] !== undefined) {
+					for (const dep of Object.keys(pkg[check])) {
+						if (pattern.exec(dep) !== null) {
+							delete pkg[check][dep];
+						}
+					}
+				}
+			}
+		}
+	}
+	fs.writeFileSync(path, JSON.stringify(pkg, undefined, 2));
+}
+
+removeDeps('package.json', ['execa', 'cssnano', 'postcss', 'terser', 'typescript'])
+removeDeps('packages/backend/package.json', ['bufferutil', 'utf-8-validate', /^@swc\//, 'typescript'])
+removeDeps('packages/megalodon/package.json', [/^@types\//, 'typescript'])
+removeDeps('packages/misskey-js/package.json', [/^@swc\//, 'typescript'])