chore: Migrate to async/await

.circleci/config.yml

@@ -17,10 +17,6 @@ jobs:
           path: "src/label/test-images"
       - store_artifacts:
           path: "src/resize/test-images"
-  test-node6:
-    <<: *test-common
-    docker:
-      - image: dwmkerr/node:6-imagemagick
   test-node8:
     <<: *test-common
     docker:
@@ -38,11 +34,6 @@ workflows:
   version: 2
   build:
     jobs:
-      - test-node6:
-          # All branches, all tags.
-          filters:
-            tags:
-              only: /.*/
       - test-node8:
           # All branches, all tags.
           filters:

.eslintrc.yml

@@ -1,4 +1,6 @@
-extends: airbnb-base
+extends: 
+  - airbnb-base
+  - plugin:node/recommended
 env:
   node: true
   mocha: true
@@ -10,3 +12,4 @@ rules:
   # tests, so relax the requirement to have single return statements
   arrow-body-style: 0
   import/no-extraneous-dependencies: [error, { devDependencies: ['**/*.specs.js'] }]
+  no-process-exit: 0

README.md

@@ -2,7 +2,7 @@
 
 [![npm version](https://badge.fury.io/js/app-icon.svg)](https://badge.fury.io/js/app-icon) [![CircleCI](https://circleci.com/gh/dwmkerr/app-icon.svg?style=shield)](https://circleci.com/gh/dwmkerr/app-icon) [![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/3e334rknhjbpx555?svg=true)](https://ci.appveyor.com/project/dwmkerr/app-icon) [![codecov](https://codecov.io/gh/dwmkerr/app-icon/branch/master/graph/badge.svg)](https://codecov.io/gh/dwmkerr/app-icon) [![dependencies Status](https://david-dm.org/dwmkerr/app-icon/status.svg)](https://david-dm.org/dwmkerr/app-icon) [![devDependencies Status](https://david-dm.org/dwmkerr/app-icon/dev-status.svg)](https://david-dm.org/dwmkerr/app-icon?type=dev) [![GuardRails badge](https://badges.production.guardrails.io/dwmkerr/app-icon.svg)](https://www.guardrails.io) [![Greenkeeper badge](https://badges.greenkeeper.io/dwmkerr/app-icon.svg)](https://greenkeeper.io/) [![Conventional Commits](https://img.shields.io/badge/Conventional%20Commits-1.0.0-yellow.svg)](https://conventionalcommits.org)
 
-Icon management for Mobile Apps. Create icons, generate all required sizes, label and annotate. Supports Native, Cordova, React Native, Xamarin and more. Inspired by [cordova-icon](https://github.com/AlexDisler/cordova-icon). Node 6 and onwards supported.
+Icon management for Mobile Apps. Create icons, generate all required sizes, label and annotate. Supports Native, Cordova, React Native, Xamarin and more. Inspired by [cordova-icon](https://github.com/AlexDisler/cordova-icon). Node 8 and onwards supported.
 
 <img src="./assets/banner.png" width="614" alt="Banner">
 
@@ -181,7 +181,7 @@ Note that Adaptive Icons of *all* supported sizes are generated. However, we als
 
 ## Developer Guide
 
-The only dependencies are Node 6 (or above) and Yarn.
+The only dependencies are Node 8 (or above) and Yarn.
 
 Useful commands for development are:
 
@@ -198,8 +198,8 @@ Currently the linting style is based on [airbnb](https://github.com/airbnb/javas
 Install the dependencies (I recommend [Node Version Manager](https://github.com/creationix/nvm)):
 
 ```bash
-nvm install 6
-nvm use 6
+nvm install 8
+nvm use 8
 git clone git@github.com:dwmkerr/app-icon.git
 cd app-icon
 npm install && npm test

appveyor.yml

@@ -1,5 +1,5 @@
 environment:
-  nodejs_version: "6"
+  nodejs_version: "8"
 
 # Install scripts. (runs after repo cloning)
 install:

bin/app-icon.js

@@ -1,8 +1,6 @@
 #!/usr/bin/env node
 
-// We use Node 6 to keep compatibility high, so need the 'use strict' statement.
-// eslint-disable-next-line
-'use strict';
+/* eslint-disable consistent-return */
 
 const chalk = require('chalk');
 const program = require('commander');
@@ -15,14 +13,23 @@ const labelImage = require('../src/label/label-image');
 const fileExists = require('../src/utils/file-exists');
 
 //  Helper to throw an error if a file doesn't exist.
-const errorIfMissing = (filePath, errorMessage) => {
-  return fileExists(filePath).then((exists) => {
-    if (!exists) {
-      console.error(`${chalk.red('error')}: ${errorMessage}`);
-      return process.exit(1);
-    }
-    return true;
-  });
+const errorIfMissing = async (filePath, errorMessage) => {
+  try {
+    await fileExists(filePath);
+  } catch (err) {
+    console.error(`${chalk.red('error')}: ${errorMessage}`);
+    return process.exit(1);
+  }
+};
+
+const imageMagickCheck = async () => {
+  const version = await imagemagickCli.getVersion();
+
+  if (!version) {
+    console.error('  Error: ImageMagick must be installed. Try:');
+    console.error('    brew install imagemagick');
+    return process.exit(1);
+  }
 };
 
 //  Create the program.
@@ -39,7 +46,7 @@ program
   .option('--background-icon [optional]', "The background icon path. Defaults to 'icon.background.png'")
   .option('--foreground-icon [optional]', "The foregroud icon path. Defaults to 'icon.foregroud.png'")
   .option('--adaptive-icons [optional]', "Additionally, generate Android Adaptive Icon templates. Defaults to 'false'")
-  .action((parameters) => {
+  .action(async (parameters) => {
     const {
       icon,
       backgroundIcon,
@@ -48,43 +55,31 @@ program
       platforms,
       adaptiveIcons,
     } = parameters;
-    imagemagickCli.getVersion()
-      .then((version) => {
-        if (!version) {
-          console.error('  Error: ImageMagick must be installed. Try:');
-          console.error('    brew install imagemagick');
-          process.exit(1);
-        }
-      })
-      .then(() => {
-        //  Check we have the files we need.
-        const operations = [];
-        operations.push(errorIfMissing(icon, `Source file '${icon}' does not exist. Add the file or specify source icon with the '--icon' parameter.`));
-        if (adaptiveIcons) {
-          const checkPath = backgroundIcon || 'icon.background.png';
-          operations.push(errorIfMissing(checkPath, `Background icon file '${checkPath}' does not exist. Add the file or specify background icon with the '--background-icon' parameter.`));
-        }
-        if (adaptiveIcons) {
-          const checkPath = foregroundIcon || 'icon.foreground.png';
-          operations.push(errorIfMissing(checkPath, `Foreground icon file '${checkPath}' does not exist. Add the file or specify foreground icon with the '--foreground-icon' parameter.`));
-        }
-        return Promise.all(operations);
-      })
-      .then(() => {
-        //  Generate some icons.
-        return generate({
-          sourceIcon: icon,
-          backgroundIcon,
-          foregroundIcon,
-          searchRoot: search,
-          platforms,
-          adaptiveIcons,
-        });
-      })
-      .catch((generateErr) => {
-        console.error(chalk.red(`An error occurred generating the icons: ${generateErr.message}`));
-        return process.exit(1);
+
+    await imageMagickCheck();
+
+    await errorIfMissing(icon, `Source file '${icon}' does not exist. Add the file or specify source icon with the '--icon' parameter.`);
+    if (adaptiveIcons) {
+      const checkPath = backgroundIcon || 'icon.background.png';
+      await errorIfMissing(checkPath, `Background icon file '${checkPath}' does not exist. Add the file or specify background icon with the '--background-icon' parameter.`);
+    }
+    if (adaptiveIcons) {
+      const checkPath = foregroundIcon || 'icon.foreground.png';
+      await errorIfMissing(checkPath, `Foreground icon file '${checkPath}' does not exist. Add the file or specify foreground icon with the '--foreground-icon' parameter.`);
+    }
+    try {
+      await generate({
+        sourceIcon: icon,
+        backgroundIcon,
+        foregroundIcon,
+        searchRoot: search,
+        platforms,
+        adaptiveIcons,
       });
+    } catch (err) {
+      console.error(chalk.red(`An error occurred generating the icons: ${err.message}`));
+      process.exit(1);
+    }
   });
 
 //  Define the 'label' command.
@@ -95,38 +90,25 @@ program
   .option('-o, --output <output>', "The output image, .e.g 'icon-out.png'.")
   .option('-t, --top [top]', "The label to put on the top of the image, .e.g 'qa'.")
   .option('-b, --bottom [bottom]', "The label to put on the bottom of the image, .e.g '1.2.5'.")
-  .action((parameters) => {
+  .action(async (parameters) => {
     const {
       input,
       output,
       top,
       bottom,
     } = parameters;
 
-    imagemagickCli.getVersion()
-      .then((version) => {
-        if (!version) {
-          console.error('  Error: ImageMagick must be installed. Try:');
-          console.error('    brew install imagemagick');
-          return process.exit(1);
-        }
-
-        //  Check that we have a input file.
-        return fileExists(input);
-      })
-      .then((exists) => {
-        if (!exists) {
-          console.error(`Input file '${input}' does not exist.`);
-          return process.exit(1);
-        }
-        //  Generate some icons then innit.
-        return labelImage(input, output, top, bottom);
-      })
-      .catch((labelErr) => {
-        console.error('An error occurred labelling the icon...');
-        console.log(labelErr);
-        return process.exit(1);
-      });
+    await imageMagickCheck();
+
+    await errorIfMissing(input, `Input file '${input}' does not exist.`);
+
+    try {
+      await labelImage(input, output, top, bottom);
+    } catch (err) {
+      console.error('An error occurred labelling the icon...');
+      console.log(err);
+      process.exit(1);
+    }
   });
 
 //  Define the 'init' command.
@@ -135,38 +117,31 @@ program
   .description('Initialises app icons by creating simple icon templates')
   .option('-c, --caption [caption]', "An optional caption for the icon, e.g 'App'.")
   .option('--adaptive-icons [optional]', "Additionally, generate Android Adaptive Icon templates. Defaults to 'false'")
-  .action((params) => {
+  .action(async (params) => {
     const { caption, adaptiveIcons } = params;
-    imagemagickCli.getVersion()
-      .then((version) => {
-        if (!version) {
-          console.error('  Error: ImageMagick must be installed. Try:');
-          console.error('    brew install imagemagick');
-          return process.exit(1);
-        }
-
-        //  Create the icon from the template, captioned if needed.
-        const input = path.resolve(__dirname, '../src/init/icon.template.png');
-        return init(input, './icon.png', { caption })
-          .then(() => console.log(`Created icon '${chalk.green('icon.png')}'`));
-      })
-      .then(() => {
-        //  If we are going to use adaptive icons, create them.
-        if (!adaptiveIcons) return;
+
+    await imageMagickCheck();
+
+    //  Create the icon from the template, captioned if needed.
+    const input = path.resolve(__dirname, '../src/init/icon.template.png');
+
+    try {
+      await init(input, './icon.png', { caption });
+      console.log(`Created icon '${chalk.green('icon.png')}'`);
+
+      if (adaptiveIcons) {
         const inputBackground = path.resolve(__dirname, '../src/init/icon.background.template.png');
         const inputForeground = path.resolve(__dirname, '../src/init/icon.foreground.template.png');
-        init(inputBackground, './icon.background.png')
-          .then(() => init(inputForeground, './icon.foreground.png', { caption }))
-          .then(() => {
-            console.log(`Created icon '${chalk.green('icon.background.png')}'`);
-            console.log(`Created icon '${chalk.green('icon.foreground.png')}'`);
-          });
-      })
-      .catch((createError) => {
-        console.error('An error occurred creating the icon...');
-        console.log(createError);
-        return process.exit(1);
-      });
+        await init(inputBackground, './icon.background.png');
+        await init(inputForeground, './icon.foreground.png', { caption });
+        console.log(`Created icon '${chalk.green('icon.background.png')}'`);
+        console.log(`Created icon '${chalk.green('icon.foreground.png')}'`);
+      }
+    } catch (err) {
+      console.error('An error occurred creating the icon...');
+      console.log(err);
+      return process.exit(1);
+    }
   });
 
 //  Extend the help with some examples.