feat: optim error

Author: CatchZeng

package.json

@@ -1,6 +1,6 @@
 {
   "name": "appthinning",
-  "version": "0.2.2",
+  "version": "0.2.3",
   "description": "Make app thinner. Help you find large files and compress png, gif, jpg, jpeg, svg files.",
   "main": "index.js",
   "bin": {

src/error/index.js

@@ -7,7 +7,7 @@ class AppthinningError extends Error {
 
 class ProjectParamError extends AppthinningError {
   constructor() {
-    super(1, "Project directory parameter not specified.") 
+    super(1, "Project directory does not specified.") 
   }
 }
 
@@ -47,6 +47,12 @@ class ImageOptimError extends AppthinningError {
   }
 }
 
+class ImageOptimNotInstalledError extends AppthinningError {
+  constructor() {
+    super(8, "ImageOptim.app is not installed, you can get it from https://imageoptim.com/mac") 
+  }
+}
+
 module.exports = {
   AppthinningError,
   ProjectParamError,
@@ -55,5 +61,6 @@ module.exports = {
   SvgoError,
   TinyPngError,
   TinyPngValidateError,
-  ImageOptimError
+  ImageOptimError,
+  ImageOptimNotInstalledError
 }

src/index.js

@@ -27,7 +27,7 @@ middlewareCenter.handleRequest(ctx).then(function(data){
 
 function commander() {
   program
-    .version("0.2.2")
+    .version("0.2.3")
     .option("-d, --dir <String>", "project directory.")
     .option(
       "-t, --types <String>",

src/util/imageOptim/index.js

@@ -4,7 +4,7 @@ const colors = require("colors")
 const nodeCmd = require("node-cmd")
 const path = require("path")
 const fs = require("fs-extra");
-const {ImageOptimError} = require("../../error")
+const {ImageOptimError, ImageOptimNotInstalledError} = require("../../error")
 
 const IMAGEOPTIM_BIN_PATH = '/Applications/ImageOptim.app/Contents/MacOS/ImageOptim';
 
@@ -31,7 +31,7 @@ function imageOptim(images) {
           }
         })
       } else {
-        reject(new ImageOptimError(new Error(`ImageOptim.app is not installed (https://imageoptim.com/mac)`)))
+        reject(new ImageOptimNotInstalledError())
       }
     })
   })

src/util/tinyPng/index.js

@@ -53,7 +53,7 @@ function validate(images) {
   return new Promise((resolve, reject) => {
     tinify.validate(function(err) {
       if (err) {
-        reject(new TinyPngError())
+        reject(new TinyPngValidateError())
       }
 
       const compressionsThisMonth = tinify.compressionCount