From 4b3c089630aa0ad495e3177df824f0bb0c7d60fa Mon Sep 17 00:00:00 2001
From: Anmol Sethi <hi@nhooyr.io>
Date: Wed, 7 Oct 2020 02:03:27 -0400
Subject: [PATCH] Remove dead code

---
 package.json            |  3 +-
 src/node/coder-cloud.ts | 85 -----------------------------------------
 src/node/entry.ts       |  4 +-
 3 files changed, 3 insertions(+), 89 deletions(-)

diff --git a/package.json b/package.json
index 878eebf1..cc3edd30 100644
--- a/package.json
+++ b/package.json
@@ -82,8 +82,7 @@
     "tar-fs": "^2.0.0",
     "ws": "^7.2.0",
     "xdg-basedir": "^4.0.0",
-    "yarn": "^1.22.4",
-    "delay": "^4.4.0"
+    "yarn": "^1.22.4"
   },
   "bin": {
     "code-server": "out/node/entry.js"
diff --git a/src/node/coder-cloud.ts b/src/node/coder-cloud.ts
index 5f7b7c0a..a3c3c590 100644
--- a/src/node/coder-cloud.ts
+++ b/src/node/coder-cloud.ts
@@ -1,11 +1,7 @@
 import { logger } from "@coder/logger"
 import { spawn } from "child_process"
-import delay from "delay"
-import fs from "fs"
 import path from "path"
 import split2 from "split2"
-import { promisify } from "util"
-import xdgBasedir from "xdg-basedir"
 
 const coderCloudAgent = path.resolve(__dirname, "../../lib/coder-cloud-agent")
 
@@ -39,17 +35,7 @@ export function coderCloudProxy(addr: string) {
   // So we trim the protocol.
   addr = addr.replace(/^https?:\/\//, "")
 
-  if (!xdgBasedir.config) {
-    return
-  }
-
-  const sessionTokenPath = path.join(xdgBasedir.config, "coder-cloud", "session")
-
   const _proxy = async () => {
-    await waitForPath(sessionTokenPath)
-
-    logger.info("exposing coder-server with coder-cloud")
-
     const agent = spawn(coderCloudAgent, ["proxy", "--code-server-addr", addr], {
       stdio: ["inherit", "inherit", "pipe"],
     })
@@ -84,74 +70,3 @@ export function coderCloudProxy(addr: string) {
   }
   proxy()
 }
-
-/**
- * waitForPath efficiently implements waiting for the existence of a path.
- *
- * We intentionally do not use fs.watchFile as it is very slow from testing.
- * I believe it polls instead of watching.
- *
- * The way this works is for each level of the path it will check if it exists
- * and if not, it will wait for it. e.g. if the path is /home/nhooyr/.config/coder-cloud/session
- * then first it will check if /home exists, then /home/nhooyr and so on.
- *
- * The wait works by first creating a watch promise for the p segment.
- * We call fs.watch on the dirname of the p segment. When the dirname has a change,
- * we check if the p segment exists and if it does, we resolve the watch promise.
- * On any error or the watcher being closed, we reject the watch promise.
- *
- * Once that promise is setup, we check if the p segment exists with fs.exists
- * and if it does, we close the watcher and return.
- *
- * Now we race the watch promise and a 2000ms delay promise. Once the race
- * is complete, we close the watcher.
- *
- * If the watch promise was the one to resolve, we return.
- * Otherwise we setup the watch promise again and retry.
- *
- * This combination of polling and watching is very reliable and efficient.
- */
-async function waitForPath(p: string): Promise<void> {
-  const segs = p.split(path.sep)
-  for (let i = 0; i < segs.length; i++) {
-    const s = path.join("/", ...segs.slice(0, i + 1))
-    // We need to wait for each segment to exist.
-    await _waitForPath(s)
-  }
-}
-
-async function _waitForPath(p: string): Promise<void> {
-  const watchDir = path.dirname(p)
-
-  logger.debug(`waiting for ${p}`)
-
-  for (;;) {
-    const w = fs.watch(watchDir)
-    const watchPromise = new Promise<void>((res, rej) => {
-      w.on("change", async () => {
-        if (await promisify(fs.exists)(p)) {
-          res()
-        }
-      })
-      w.on("close", () => rej(new Error("watcher closed")))
-      w.on("error", rej)
-    })
-
-    // We want to ignore any errors from this promise being rejected if the file
-    // already exists below.
-    watchPromise.catch(() => {})
-
-    if (await promisify(fs.exists)(p)) {
-      // The path exists!
-      w.close()
-      return
-    }
-
-    // Now we wait for either the watch promise to resolve/reject or 2000ms.
-    const s = await Promise.race([watchPromise.then(() => "exists"), delay(2000)])
-    w.close()
-    if (s === "exists") {
-      return
-    }
-  }
-}
diff --git a/src/node/entry.ts b/src/node/entry.ts
index 1be886e0..901c732f 100644
--- a/src/node/entry.ts
+++ b/src/node/entry.ts
@@ -142,14 +142,14 @@ const main = async (args: Args, cliArgs: Args, configArgs: Args): Promise<void>
   }
 
   if (args["coder-bind"]) {
-    logger.info(`linking code-server to the cloud with name ${args["coder-bind"]}`)
 
     try {
+      logger.info(`binding code-server to the cloud with name ${args["coder-bind"]}`)
       await coderCloudBind(args["coder-bind"])
       coderCloudProxy(serverAddress!)
     } catch (err) {
       logger.error(err.message)
-      process.exit(1)
+      ipcMain().exit(1)
     }
   }
 }