chore(): start moving some packages to the core directory (#7215)

packages/cli/create-medusa-app/src/utils/process-manager.ts

@@ -0,0 +1,60 @@
+type ProcessOptions = {
+  process: Function
+  ignoreERESOLVE?: boolean
+}
+
+export default class ProcessManager {
+  intervals: NodeJS.Timeout[] = []
+  static MAX_RETRIES = 3
+
+  constructor() {
+    this.onTerminated(() => {
+      this.intervals.forEach((interval) => {
+        clearInterval(interval)
+      })
+    })
+  }
+
+  onTerminated(fn: () => Promise<void> | void) {
+    process.on("SIGTERM", () => fn())
+    process.on("SIGINT", () => fn())
+  }
+
+  addInterval(interval: NodeJS.Timeout) {
+    this.intervals.push(interval)
+  }
+
+  // when running commands with npx or npm sometimes they
+  // terminate with EAGAIN error unexpectedly
+  // this utility function allows retrying the process if
+  // EAGAIN occurs, or otherwise throw the error that occurs
+  async runProcess({ process, ignoreERESOLVE }: ProcessOptions) {
+    let processError = false
+    let retries = 0
+    do {
+      ++retries
+      try {
+        await process()
+      } catch (error) {
+        if (
+          typeof error === "object" &&
+          error !== null &&
+          "code" in error &&
+          error?.code === "EAGAIN"
+        ) {
+          processError = true
+        } else if (
+          ignoreERESOLVE &&
+          typeof error === "object" &&
+          error !== null &&
+          "code" in error &&
+          error?.code === "ERESOLVE"
+        ) {
+          // ignore error
+        } else {
+          throw error
+        }
+      }
+    } while (processError && retries <= ProcessManager.MAX_RETRIES)
+  }
+}