feat: add no files error

Author: CatchZeng

package.json

@@ -1,6 +1,6 @@
 {
   "name": "appthinning",
-  "version": "0.2.3",
+  "version": "0.2.4",
   "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

@@ -53,6 +53,12 @@ class ImageOptimNotInstalledError extends AppthinningError {
   }
 }
 
+class NoFilesNeedError extends AppthinningError {
+  constructor() {
+    super(9, "No files need to be processed.") 
+  }
+}
+
 module.exports = {
   AppthinningError,
   ProjectParamError,
@@ -62,5 +68,6 @@ module.exports = {
   TinyPngError,
   TinyPngValidateError,
   ImageOptimError,
-  ImageOptimNotInstalledError
+  ImageOptimNotInstalledError,
+  NoFilesNeedError
 }

src/index.js

@@ -27,7 +27,7 @@ middlewareCenter.handleRequest(ctx).then(function(data){
 
 function commander() {
   program
-    .version("0.2.3")
+    .version("0.2.4")
     .option("-d, --dir <String>", "project directory.")
     .option(
       "-t, --types <String>",

src/middlewares/largeFile/index.js

@@ -1,7 +1,7 @@
 const Config = require("../../config/index")
 const colors = require("colors")
 const LargeFileFinder = require("./largeFileFinder")
-const {ProjectParamError} = require("../../error")
+const {ProjectParamError, NoFilesNeedError} = require("../../error")
 
 async function largeFile(ctx, next) {
   const program = ctx.program
@@ -19,8 +19,8 @@ async function largeFile(ctx, next) {
   }
 
   let type = Config.defaultType
-  if (program.type) {
-    type = program.type.toString()
+  if (program.types) {
+    type = program.types.toString()
   }
 
   console.log(colors.yellow("finding large files..."))
@@ -32,6 +32,10 @@ async function largeFile(ctx, next) {
   )
   ctx.files = result
 
+  if (ctx.files.length < 1) {
+    return Promise.reject(new NoFilesNeedError())
+  }
+
   await next()
 }