bunext/dist/functions/bundler/strip-server-side-logic.js

63 lines
3.3 KiB
JavaScript

import path from "path";
import ts from "typescript";
export default function stripServerSideLogic({ txt_code, file_path }) {
const sourceFile = ts.createSourceFile("file.tsx", txt_code, ts.ScriptTarget.Latest, true, ts.ScriptKind.TSX);
const printer = ts.createPrinter();
const file_fir_name = path.dirname(file_path);
const transformer = (context) => (rootNode) => {
const visitor = (node) => {
// 1. Strip the 'server' export
if (ts.isVariableStatement(node) &&
node.modifiers?.some((m) => m.kind === ts.SyntaxKind.ExportKeyword)) {
const isServer = node.declarationList.declarations.some((d) => ts.isIdentifier(d.name) && d.name.text === "server");
if (isServer)
return undefined;
}
// 2. Convert relative imports to absolute imports
if (ts.isImportDeclaration(node)) {
const moduleSpecifier = node.moduleSpecifier;
if (ts.isStringLiteral(moduleSpecifier) &&
moduleSpecifier.text.startsWith(".")) {
// Resolve the relative path to an absolute filesystem path
const absolutePath = path.resolve(file_fir_name, moduleSpecifier.text);
return ts.factory.updateImportDeclaration(node, node.modifiers, node.importClause, ts.factory.createStringLiteral(absolutePath), node.attributes);
}
}
return ts.visitEachChild(node, visitor, context);
};
return ts.visitNode(rootNode, visitor);
};
const result = ts.transform(sourceFile, [transformer]);
const intermediate = printer.printFile(result.transformed[0]);
// Pass 2: Cleanup unused imports (Same logic as before)
const cleanSource = ts.createSourceFile("clean.tsx", intermediate, ts.ScriptTarget.Latest, true, ts.ScriptKind.TSX);
const cleanup = (context) => (rootNode) => {
const visitor = (node) => {
if (ts.isImportDeclaration(node)) {
const clause = node.importClause;
if (!clause)
return node;
if (clause.namedBindings &&
ts.isNamedImports(clause.namedBindings)) {
const used = clause.namedBindings.elements.filter((el) => {
const regex = new RegExp(`\\b${el.name.text}\\b`, "g");
return ((intermediate.match(regex) || []).length > 1);
});
if (used.length === 0)
return undefined;
return ts.factory.updateImportDeclaration(node, node.modifiers, ts.factory.updateImportClause(clause, clause.isTypeOnly, clause.name, ts.factory.createNamedImports(used)), node.moduleSpecifier, node.attributes);
}
if (clause.name) {
const regex = new RegExp(`\\b${clause.name.text}\\b`, "g");
if ((intermediate.match(regex) || []).length <= 1)
return undefined;
}
}
return ts.visitEachChild(node, visitor, context);
};
return ts.visitNode(rootNode, visitor);
};
const final = ts.transform(cleanSource, [cleanup]);
return printer.printFile(final.transformed[0]);
}