Remove colors dependency

package.json

@@ -35,7 +35,6 @@
     "cli"
   ],
   "dependencies": {
-    "colors": "^1.4.0",
     "glob": "^7.2.0",
     "jpeg-js": "^0.4.3",
     "piexifjs": "^1.0.6",

readme.md

@@ -228,7 +228,6 @@ Bug reports and feature requests are welcome! More details in the [contribution
 * [piexifjs](https://github.com/hMatoba/piexifjs)
 * [jpeg-js](https://github.com/eugeneware/jpeg-js)
 * [exif-orientation-examples](https://github.com/recurser/exif-orientation-examples)
-* [colors](https://github.com/Marak/colors.js)
 * [yargs](https://github.com/bcoe/yargs)
 * [FontAwesome](http://fontawesome.io/)
 * [Chai](http://chaijs.com/)

src/cli.js

@@ -1,10 +1,10 @@
 #!/usr/bin/env node
 
 const yargsParser = require('yargs-parser')
-const colors = require('colors')
 const fsp = require('fs').promises
 const glob = require('glob')
 const jo = require('./main.js')
+const cliStyle = require('./clistyle.js')
 const manifest = require('../package.json')
 const promisify = require('util').promisify
 
@@ -23,10 +23,10 @@ if (argv.help || argv._.length === 0) {
     '',
     'Rotate JPEG images based on EXIF orientation',
     '',
-    colors.underline('Usage'),
+    cliStyle.underline('Usage'),
     'jpeg-autorotate <path>',
     '',
-    colors.underline('Options'),
+    cliStyle.underline('Options'),
     '--quality=<1-100>                  JPEG output quality',
     '--jpegjsMaxResolutionInMP=<num>    jpeg-js maxResolutionInMP option',
     '--jpegjsMaxMemoryUsageInMB=<num>   jpeg-js maxMemoryUsageInMB option',
@@ -52,10 +52,10 @@ if (argv.help || argv._.length === 0) {
       await fsp.writeFile(filePath, buffer)
       const readableDimensions = `${dimensions.width}x${dimensions.height}`
       const message = `Processed (Orientation: ${orientation}) (Quality: ${quality}%) (Dimensions: ${readableDimensions})`
-      console.log(`${filePath}: ${colors.green(message)}`)
+      console.log(`${filePath}: ${cliStyle.green(message)}`)
     } catch (error) {
       const isFatal = error.code !== jo.errors.correct_orientation
-      console.log(`${filePath}: ${isFatal ? colors.red(error.message) : colors.yellow(error.message)}`)
+      console.log(`${filePath}: ${isFatal ? cliStyle.red(error.message) : cliStyle.yellow(error.message)}`)
     }
   }
 })()

src/clistyle.js

@@ -0,0 +1,29 @@
+module.exports = {
+  // Styles
+  // bold: (string) => applyCliStyle(string, '\x1b[1m'),
+  underline: (string) => applyCliStyle(string, '\x1b[4m'),
+  // inverse: (string) => applyCliStyle(string, '\x1b[7m'),
+  // Colors (text)
+  // black: (string) => applyCliStyle(string, '\x1b[30m'),
+  red: (string) => applyCliStyle(string, '\x1b[31m'),
+  green: (string) => applyCliStyle(string, '\x1b[32m'),
+  yellow: (string) => applyCliStyle(string, '\x1b[33m'),
+  // blue: (string) => applyCliStyle(string, '\x1b[34m'),
+  // magenta: (string) => applyCliStyle(string, '\x1b[35m'),
+  // cyan: (string) => applyCliStyle(string, '\x1b[36m'),
+  // white: (string) => applyCliStyle(string, '\x1b[37m'),
+  // Colors (background)
+  // blackBg: (string) => applyCliStyle(string, '\x1b[40m'),
+  // redBg: (string) => applyCliStyle(string, '\x1b[41m'),
+  // greenBg: (string) => applyCliStyle(string, '\x1b[42m'),
+  // yellowBg: (string) => applyCliStyle(string, '\x1b[43m'),
+  // blueBg: (string) => applyCliStyle(string, '\x1b[44m'),
+  // magentaBg: (string) => applyCliStyle(string, '\x1b[45m'),
+  // cyanBg: (string) => applyCliStyle(string, '\x1b[46m'),
+  // whiteBg: (string) => applyCliStyle(string, '\x1b[47m'),
+}
+
+function applyCliStyle(string, styleTag) {
+  const resetTag = '\x1b[0m'
+  return `${styleTag}${string}${resetTag}`
+}