feat: change/simplify hasColors implementation

It is now a constant, not a function. Dependency-free detection.

Credit to sindresorhus/yoctocolors#5

package.json

@@ -37,7 +37,6 @@
     "move-file": "^2.0.0",
     "nanoid": "^3.0.0",
     "sanitize-html": "^2.5.2",
-    "supports-color": "^8.0.0",
     "through2-concurrent": "^2.0.0",
     "yargs": "^17.0.0"
   },

src/colors/colors.test.ts

@@ -8,5 +8,5 @@ test('colors', () => {
 })
 
 test('hasColors', () => {
-  console.log(hasColors())
+  console.log(hasColors)
 })

src/colors/colors.ts

@@ -1,6 +1,8 @@
-const supporsColorLib = require('supports-color')
+import * as tty from 'tty'
 
-export function hasColors(): boolean {
-  if (process.env['NO_COLOR']) return false // https://no-color.org/
-  return !!supporsColorLib.stdout
-}
+/**
+ * Based on: https://github.com/sindresorhus/yoctocolors/pull/5
+ *
+ * @experimental
+ */
+export const hasColors = !process.env['NO_COLOR'] && tty.WriteStream.prototype.hasColors()

src/stream/transform/transformLogProgress.ts

@@ -104,7 +104,7 @@ export interface TransformLogProgressOptions<IN = any> extends TransformOptions
 }
 
 const inspectOpt: InspectOptions = {
-  colors: hasColors(),
+  colors: hasColors,
   breakLength: 300,
 }
 
@@ -163,16 +163,16 @@ export function transformLogProgress<IN = any>(
     const mem = process.memoryUsage()
 
     const now = Date.now()
-    const lastRPS = (processedLastSecond * batchSize) / ((now - lastSecondStarted) / 1000) || 0
-    const rpsTotal = Math.round((progress * batchSize) / ((now - started) / 1000)) || 0
+    const batchedProgress = progress * batchSize
+    const lastRPS =
+      (processedLastSecond * batchedProgress) / ((now - lastSecondStarted) / 1000) || 0
+    const rpsTotal = Math.round(batchedProgress / ((now - started) / 1000)) || 0
     lastSecondStarted = now
     processedLastSecond = 0
 
     const rps10 = Math.round(sma.push(lastRPS))
     if (mem.rss > peakRSS) peakRSS = mem.rss
 
-    const batchedProgress = progress * batchSize
-
     console.log(
       inspect(
         {