refactor: Migrate nodes build system to tsup (no-changelog) (#14192)

packages/nodes-base/tsup.config.ts

@@ -0,0 +1,53 @@
+// eslint-disable-next-line import/no-extraneous-dependencies
+import { defineConfig } from 'tsup';
+import glob from 'fast-glob';
+import { resolve } from 'path';
+import { readFile } from 'fs/promises';
+
+const packagesDir = resolve(__dirname, '..');
+const aiNodesDir = resolve(packagesDir, '@n8n', 'nodes-langchain');
+
+const aiNodesFiles = await glob('nodes/**/*.ts', { cwd: aiNodesDir });
+const aiNodesFilesContents = aiNodesFiles.map((filePath) =>
+	readFile(resolve(aiNodesDir, filePath), 'utf-8'),
+);
+
+// Files used in @n8n/nodes-langchain package
+const aiNodesPackageImports = (await Promise.all(aiNodesFilesContents)).reduce(
+	(acc, fileContents) => {
+		const regex = /from\s+['"](n8n-nodes-base[^'"]+)['"]/g;
+		let match;
+		while ((match = regex.exec(fileContents)) !== null) {
+			acc.add(match[1]);
+		}
+
+		return acc;
+	},
+	new Set<string>(),
+);
+
+const aiNodesPackageDependencies = Array.from(aiNodesPackageImports).map(
+	(i) => i.replace('n8n-nodes-base/dist/', '') + '.ts',
+);
+
+const commonIgnoredFiles = ['!**/*.d.ts', '!**/*.test.ts'];
+
+// eslint-disable-next-line import/no-default-export
+export default defineConfig([
+	{
+		entry: [
+			'{credentials,nodes,test,types,utils}/**/*.ts',
+			...commonIgnoredFiles,
+			...aiNodesPackageDependencies.map((path) => `!${path}`),
+		],
+		format: ['cjs'],
+		dts: false,
+		bundle: false,
+	},
+	{
+		entry: [...aiNodesPackageDependencies, ...commonIgnoredFiles],
+		format: ['cjs'],
+		dts: true,
+		bundle: false,
+	},
+]);