feat: Development server for core + plugins (#2448)

integration-tests/development/dev-require.js

@@ -0,0 +1,55 @@
+if (process.env.NODE_ENV !== "development") {
+  return
+}
+
+const path = require("path")
+
+const Module = require("module")
+const originalRequire = Module.prototype.require
+const medusaCore = path.resolve(path.join(__dirname, "../../packages"))
+
+function replacePath(requirePath, package, concatPackage = true) {
+  const idx = requirePath.indexOf(package)
+  const packPath = requirePath.substring(idx + package.length)
+
+  let newPath = path.resolve(
+    medusaCore +
+      "/" +
+      (concatPackage ? package + "/" : "") +
+      packPath.replace("/dist", "/src").replace(".js", "")
+  )
+
+  if (!newPath.includes("/src")) {
+    newPath += "/src"
+  }
+  return newPath
+}
+
+Module.prototype.require = function (...args) {
+  const interfaces = "medusa-interfaces"
+  const utils = "medusa-core-utils"
+  const base = "@medusajs"
+
+  if (args[0].includes(base)) {
+    args[0] = replacePath(args[0], base, false)
+  } else if (args[0].includes(interfaces)) {
+    args[0] = replacePath(args[0], interfaces)
+  } else if (args[0].includes(utils)) {
+    args[0] = replacePath(args[0], utils)
+  }
+
+  if (args[0] === "glob") {
+    const glob = originalRequire.apply(this, args)
+    const originalGlobSync = glob.sync
+    glob.GlobSync = glob.sync = (pattern, options) => {
+      if (pattern.endsWith(".js") || pattern.endsWith(".ts")) {
+        pattern = pattern.replace(".js", ".{j,t}s").replace("/dist/", "/src/")
+      }
+
+      return originalGlobSync.apply(this, [pattern, options])
+    }
+    return glob
+  }
+
+  return originalRequire.apply(this, args)
+}