From 43f1a1dd1b44065663a797603012394c52a9baea Mon Sep 17 00:00:00 2001
From: "(quasar) nebula" <qznebula@protonmail.com>
Date: Sat, 13 May 2023 13:31:58 -0300
Subject: use ESM module syntax & update tui-lib

Exciting update! This doesn't make any substantial changes
exactly but does update the most quickly-archaic parts of
older Node code.
---
 general-util.js | 48 ++++++++++++++++++++++--------------------------
 1 file changed, 22 insertions(+), 26 deletions(-)

(limited to 'general-util.js')

diff --git a/general-util.js b/general-util.js
index aba1541..bb0574a 100644
--- a/general-util.js
+++ b/general-util.js
@@ -1,13 +1,11 @@
-const { spawn } = require('child_process')
-const { promisify } = require('util')
-const fetch = require('node-fetch')
-const fs = require('fs')
-const npmCommandExists = require('command-exists')
-const url = require('url')
+import {spawn} from 'node:child_process'
+import {readFile} from 'node:fs/promises'
+import {fileURLToPath, URL} from 'node:url'
 
-const readFile = promisify(fs.readFile)
+import npmCommandExists from 'command-exists'
+import fetch from 'node-fetch'
 
-module.exports.promisifyProcess = function(proc, showLogging = true) {
+export function promisifyProcess(proc, showLogging = true) {
   // Takes a process (from the child_process module) and returns a promise
   // that resolves when the process exits (or rejects, if the exit code is
   // non-zero).
@@ -28,7 +26,7 @@ module.exports.promisifyProcess = function(proc, showLogging = true) {
   })
 }
 
-module.exports.commandExists = async function(command) {
+export async function commandExists(command) {
   // When the command-exists module sees that a given command doesn't exist, it
   // throws an error instead of returning false, which is not what we want.
 
@@ -39,12 +37,12 @@ module.exports.commandExists = async function(command) {
   }
 }
 
-module.exports.killProcess = async function(proc) {
+export async function killProcess(proc) {
   // Windows is stupid and doesn't like it when we try to kill processes.
   // So instead we use taskkill! https://stackoverflow.com/a/28163919/4633828
 
-  if (await module.exports.commandExists('taskkill')) {
-    await module.exports.promisifyProcess(
+  if (await commandExists('taskkill')) {
+    await promisifyProcess(
       spawn('taskkill', ['/pid', proc.pid, '/f', '/t']),
       false
     )
@@ -53,18 +51,18 @@ module.exports.killProcess = async function(proc) {
   }
 }
 
-function downloadPlaylistFromURL(url) {
+export function downloadPlaylistFromURL(url) {
   return fetch(url).then(res => res.text())
 }
 
-function downloadPlaylistFromLocalPath(path) {
+export function downloadPlaylistFromLocalPath(path) {
   return readFile(path).then(buf => buf.toString())
 }
 
-module.exports.downloadPlaylistFromOptionValue = function(arg) {
+export function downloadPlaylistFromOptionValue(arg) {
   let argURL
   try {
-    argURL = new url.URL(arg)
+    argURL = new URL(arg)
   } catch (err) {
     // Definitely not a URL.
   }
@@ -73,14 +71,14 @@ module.exports.downloadPlaylistFromOptionValue = function(arg) {
     if (argURL.protocol === 'http:' || argURL.protocol === 'https:') {
       return downloadPlaylistFromURL(arg)
     } else if (argURL.protocol === 'file:') {
-      return downloadPlaylistFromLocalPath(url.fileURLToPath(argURL))
+      return downloadPlaylistFromLocalPath(fileURLToPath(argURL))
     }
   } else {
     return downloadPlaylistFromLocalPath(arg)
   }
 }
 
-module.exports.shuffleArray = function(array) {
+export function shuffleArray(array) {
   // Shuffles the items in an array. Returns a new array (does not modify the
   // passed array). Super-interesting post on how this algorithm works:
   // https://bost.ocks.org/mike/shuffle/
@@ -103,7 +101,7 @@ module.exports.shuffleArray = function(array) {
   return workingArray
 }
 
-module.exports.throttlePromise = function(maximumAtOneTime = 10) {
+export function throttlePromise(maximumAtOneTime = 10) {
   // Returns a function that takes a callback to create a promise and either
   // runs it now, if there is an available slot, or enqueues it to be run
   // later, if there is not.
@@ -139,7 +137,7 @@ module.exports.throttlePromise = function(maximumAtOneTime = 10) {
   return enqueue
 }
 
-module.exports.getSecFromTimestamp = function(timestamp) {
+export function getSecFromTimestamp(timestamp) {
   const parts = timestamp.split(':').map(n => parseInt(n))
   switch (parts.length) {
     case 3: return parts[0] * 3600 + parts[1] * 60 + parts[2]
@@ -149,7 +147,7 @@ module.exports.getSecFromTimestamp = function(timestamp) {
   }
 }
 
-module.exports.getTimeStringsFromSec = function(curSecTotal, lenSecTotal, fraction = false) {
+export function getTimeStringsFromSec(curSecTotal, lenSecTotal, fraction = false) {
   const percentVal = (100 / lenSecTotal) * curSecTotal
   const percentDone = (
     (Math.trunc(percentVal * 100) / 100).toFixed(2) + '%'
@@ -207,16 +205,16 @@ module.exports.getTimeStringsFromSec = function(curSecTotal, lenSecTotal, fracti
   return {percentDone, timeDone, timeLeft, duration, curSecTotal, lenSecTotal}
 }
 
-module.exports.getTimeStrings = function({curHour, curMin, curSec, lenHour, lenMin, lenSec}) {
+export function getTimeStrings({curHour, curMin, curSec, lenHour, lenMin, lenSec}) {
   // Multiplication casts to numbers; addition prioritizes strings.
   // Thanks, JavaScript!
   const curSecTotal = (3600 * curHour) + (60 * curMin) + (1 * curSec)
   const lenSecTotal = (3600 * lenHour) + (60 * lenMin) + (1 * lenSec)
 
-  return module.exports.getTimeStringsFromSec(curSecTotal, lenSecTotal)
+  return getTimeStringsFromSec(curSecTotal, lenSecTotal)
 }
 
-const parseOptions = async function(options, optionDescriptorMap) {
+export async function parseOptions(options, optionDescriptorMap) {
   // This function is sorely lacking in comments, but the basic usage is
   // as such:
   //
@@ -331,5 +329,3 @@ const parseOptions = async function(options, optionDescriptorMap) {
 }
 
 parseOptions.handleDashless = Symbol()
-
-module.exports.parseOptions = parseOptions
-- 
cgit 1.3.0-6-gf8a5