refactor: remove dead code (#5188)

* refactor: delete unused code

* refactor: move onLine to test helpers

* Revert "refactor: move onLine to test helpers"

This reverts commit 32cc27b213.

* fixup! refactor: delete unused code

src/common/util.ts

@@ -1,12 +1,3 @@
-/**
- * Split a string up to the delimiter. If the delimiter doesn't exist the first
- * item will have all the text and the second item will be an empty string.
- */
-export const split = (str: string, delimiter: string): [string, string] => {
-  const index = str.indexOf(delimiter)
-  return index !== -1 ? [str.substring(0, index).trim(), str.substring(index + 1)] : [str, ""]
-}
-
 /**
  * Appends an 's' to the provided string if count is greater than one;
  * otherwise the string is returned
@@ -34,27 +25,6 @@ export const normalize = (url: string, keepTrailing = false): string => {
   return url.replace(/\/\/+/g, "/").replace(/\/+$/, keepTrailing ? "/" : "")
 }
 
-/**
- * Remove leading and trailing slashes.
- */
-export const trimSlashes = (url: string): string => {
-  return url.replace(/^\/+|\/+$/g, "")
-}
-
-/**
- * Wrap the value in an array if it's not already an array. If the value is
- * undefined return an empty array.
- */
-export const arrayify = <T>(value?: T | T[]): T[] => {
-  if (Array.isArray(value)) {
-    return value
-  }
-  if (typeof value === "undefined") {
-    return []
-  }
-  return [value]
-}
-
 // TODO: Might make sense to add Error handling to the logger itself.
 export function logError(logger: { error: (msg: string) => void }, prefix: string, err: unknown): void {
   if (err instanceof Error) {

src/node/app.ts

@@ -102,29 +102,6 @@ export const ensureAddress = (server: http.Server, protocol: string): URL | stri
   return addr
 }
 
-/**
- * Handles error events from the server.
- *
- * If the outlying Promise didn't resolve
- * then we reject with the error.
- *
- * Otherwise, we log the error.
- *
- * We extracted into a function so that we could
- * test this logic more easily.
- */
-export const handleServerError = (resolved: boolean, err: Error, reject: (err: Error) => void) => {
-  // Promise didn't resolve earlier so this means it's an error
-  // that occurs before the server can successfully listen.
-  // Possibly triggered by listening on an invalid port or socket.
-  if (!resolved) {
-    reject(err)
-  } else {
-    // Promise resolved earlier so this is an unrelated error.
-    util.logError(logger, "http server error", err)
-  }
-}
-
 /**
  * Handles the error that occurs in the catch block
  * after we try fs.unlink(args.socket).

src/node/constants.ts

@@ -3,8 +3,6 @@ import type { JSONSchemaForNPMPackageJsonFiles } from "@schemastore/package"
 import * as os from "os"
 import * as path from "path"
 
-export const WORKBENCH_WEB_CONFIG_ID = "vscode-workbench-web-configuration"
-
 export function getPackageJson(relativePath: string): JSONSchemaForNPMPackageJsonFiles {
   let pkg = {}
   try {
@@ -21,7 +19,6 @@ export const vsRootPath = path.join(rootPath, "lib/vscode")
 const PACKAGE_JSON = "package.json"
 const pkg = getPackageJson(`${rootPath}/${PACKAGE_JSON}`)
 const codePkg = getPackageJson(`${vsRootPath}/${PACKAGE_JSON}`) || { version: "0.0.0" }
-export const pkgName = pkg.name || "code-server"
 export const version = pkg.version || "development"
 export const commit = pkg.commit || "development"
 export const codeVersion = codePkg.version || "development"

src/node/util.ts

@@ -426,15 +426,6 @@ export const enumToArray = (t: any): string[] => {
   return values
 }
 
-/**
- * For displaying all allowed options in an enum.
- */
-// eslint-disable-next-line @typescript-eslint/no-explicit-any
-export const buildAllowedMessage = (t: any): string => {
-  const values = enumToArray(t)
-  return `Allowed value${values.length === 1 ? " is" : "s are"} ${values.map((t) => `'${t}'`).join(", ")}`
-}
-
 /**
  * Return a promise that resolves with whether the socket path is active.
  */

test/unit/common/util.test.ts

@@ -24,16 +24,6 @@ describe("util", () => {
     })
   })
 
-  describe("split", () => {
-    it("should split at a comma", () => {
-      expect(util.split("Hello,world", ",")).toStrictEqual(["Hello", "world"])
-    })
-
-    it("shouldn't split if the delimiter doesn't exist", () => {
-      expect(util.split("Hello world", ",")).toStrictEqual(["Hello world", ""])
-    })
-  })
-
   describe("plural", () => {
     it("should add an s if count is greater than 1", () => {
       expect(util.plural(2, "dog")).toBe("dogs")
@@ -57,43 +47,6 @@ describe("util", () => {
     })
   })
 
-  describe("trimSlashes", () => {
-    it("should remove leading slashes", () => {
-      expect(util.trimSlashes("/hello-world")).toBe("hello-world")
-    })
-
-    it("should remove trailing slashes", () => {
-      expect(util.trimSlashes("hello-world/")).toBe("hello-world")
-    })
-
-    it("should remove both leading and trailing slashes", () => {
-      expect(util.trimSlashes("/hello-world/")).toBe("hello-world")
-    })
-
-    it("should remove multiple leading and trailing slashes", () => {
-      expect(util.trimSlashes("///hello-world////")).toBe("hello-world")
-    })
-  })
-
-  describe("arrayify", () => {
-    it("should return value it's already an array", () => {
-      expect(util.arrayify(["hello", "world"])).toStrictEqual(["hello", "world"])
-    })
-
-    it("should wrap the value in an array if not an array", () => {
-      expect(
-        util.arrayify({
-          name: "Coder",
-          version: "3.8",
-        }),
-      ).toStrictEqual([{ name: "Coder", version: "3.8" }])
-    })
-
-    it("should return an empty array if the value is undefined", () => {
-      expect(util.arrayify(undefined)).toStrictEqual([])
-    })
-  })
-
   describe("logError", () => {
     beforeAll(() => {
       mockLogger()

test/unit/node/app.test.ts

@@ -3,7 +3,7 @@ import { promises } from "fs"
 import * as http from "http"
 import * as https from "https"
 import * as path from "path"
-import { createApp, ensureAddress, handleArgsSocketCatchError, handleServerError, listen } from "../../../src/node/app"
+import { createApp, ensureAddress, handleArgsSocketCatchError, listen } from "../../../src/node/app"
 import { OptionalString, setDefaults } from "../../../src/node/cli"
 import { generateCertificate } from "../../../src/node/util"
 import { clean, mockLogger, getAvailablePort, tmpdir } from "../../utils/helpers"
@@ -169,38 +169,6 @@ describe("ensureAddress", () => {
   })
 })
 
-describe("handleServerError", () => {
-  beforeAll(() => {
-    mockLogger()
-  })
-
-  afterEach(() => {
-    jest.clearAllMocks()
-  })
-
-  it("should call reject if resolved is false", async () => {
-    const resolved = false
-    const reject = jest.fn((err: Error) => undefined)
-    const error = new Error("handleServerError Error")
-
-    handleServerError(resolved, error, reject)
-
-    expect(reject).toHaveBeenCalledTimes(1)
-    expect(reject).toHaveBeenCalledWith(error)
-  })
-
-  it("should log an error if resolved is true", async () => {
-    const resolved = true
-    const reject = jest.fn((err: Error) => undefined)
-    const error = new Error("handleServerError Error")
-
-    handleServerError(resolved, error, reject)
-
-    expect(logger.error).toHaveBeenCalledTimes(1)
-    expect(logger.error).toHaveBeenCalledWith(`http server error: ${error.message} ${error.stack}`)
-  })
-})
-
 describe("handleArgsSocketCatchError", () => {
   beforeAll(() => {
     mockLogger()

test/unit/node/constants.test.ts

@@ -34,10 +34,6 @@ describe("constants", () => {
       jest.resetModules()
     })
 
-    it("should provide the package name", () => {
-      expect(constants.pkgName).toBe(mockPackageJson.name)
-    })
-
     it("should provide the commit", () => {
       expect(constants.commit).toBe(mockPackageJson.commit)
     })