Init

.gitignore

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+
+/resources/*/
+
+# system
+.DS_Store
+node_modules/
+/dist/
+/typings/
+
+# Logs
+logs
+*.log
+
+# Runtime data
+pids
+*.pid
+*.seed
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release

LICENSE

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+MIT License
+
+Copyright (c) 2017 Olivab
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# cordova-res-generator
+
+Automatic icon and splash screen resizing tool for **Cordova**/**ionic**/**PhoneGap** based applications.
+
+It automatically resizes and copies your ```icon.png``` and ```splash.png``` files for the **iOS**, **Android** platforms.
+
+It does **NOT require** any external binary libraries. **Javascript only**.
+
+---
+
+### Installation
+
+    $ npm install cordova-res-generator -g
+
+---
+
+### Usage
+
+Add your ```icon.png``` (1024x1024) and ```splash.png``` (2732x2732) files to the 'resources' folder under the root of your cordova based project.
+
+Then run:
+
+    $ cordova-res-generator
+
+or
+
+    $ crgen
+
+---
+
+### License
+
+MIT

index.js

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+#!/usr/bin/env node
+
+'use strict';
+
+// Lib definitions
+
+var program = require('commander');
+var colors = require('colors');
+
+var _ = require('lodash');
+var Q = require('q');
+
+var fs = require('fs-extra');
+var path = require('path');
+
+var Jimp = require('jimp');
+
+// helpers
+
+var display = {
+    info: (str) => {
+        console.log('  ' + str);
+    },
+    success: (str) => {
+        str = 'V'.green + '  ' + str;
+        console.log('  ' + str);
+    },
+    error: (str) => {
+        str = 'X'.red + '  ' + str;
+        console.log('  ' + str);
+    },
+    header: (str) => {
+        console.log('');
+        console.log(str.cyan.underline);
+    }
+};
+
+// app main variables
+
+var imageObjects;
+
+// app functions
+
+function check(_settings) {
+    display.header('Checking image files and output directory');
+
+    return getImages(_settings)
+        .then((iobjs) => {
+            imageObjects = iobjs;
+        })
+        .then(() => checkOutPutDir(_settings));
+
+}
+
+function getImages(_settings) {
+
+    var _imageObjects = {
+        icon: null,
+        splash: null
+    };
+
+    return checkIconFile(_settings.iconfile)
+        .then((image) => {
+            _imageObjects.icon = image;
+        })
+        .then(() => checkSplashFile(_settings.splashFileName))
+        .then((image) => {
+            _imageObjects.splash = image;
+            return _imageObjects;
+        });
+
+    function checkIconFile(iconFileName) {
+        var defer = Q.defer();
+
+        Jimp.read(_settings.iconfile)
+            .then((image) => {
+                var width = image.bitmap.width;
+                var height = image.bitmap.height;
+                display.info('Icon: ' + width + 'x' + height);
+                if (width === 1024 && width === height) {
+                    display.success('Icon file ok.')
+                    defer.resolve(image);
+                } else {
+                    display.error('Bad icon file.')
+                    defer.reject('Bad image format.');
+                }
+            })
+            .catch((err) => {
+                display.error('Could not load icon file');
+                defer.reject(err);
+            });
+
+        return defer.promise;
+    }
+
+    function checkSplashFile(splashFileName) {
+        var defer = Q.defer();
+
+        Jimp.read(_settings.splashfile)
+            .then((image) => {
+                var width = image.bitmap.width;
+                var height = image.bitmap.height;
+                display.info('Splash: ' + width + 'x' + height);
+                if (width === 2732 && width === height) {
+                    display.success('Splash file ok.')
+                    defer.resolve(image);
+                } else {
+                    display.error('Bad splash file.')
+                    defer.reject('Bad image format.');
+                }
+            })
+            .catch((err) => {
+                display.error('Could not load splash file');
+                defer.reject(err);
+            });
+
+        return defer.promise;
+    }
+
+}
+
+function checkOutPutDir(_settings) {
+    var dir = _settings.outputdirectory;
+
+    display.info('Output directory: ' + dir);
+
+    return fs.pathExists(dir)
+        .then((exists) => {
+            if (exists) {
+                display.success('Output directory ok.');
+            } else {
+                display.error('Output directory not found.');
+                throw ('Not found: ' + dir);
+            }
+        });
+
+}
+
+function generateForConfig(_imageObj, _settings, _config) {
+    var platformPath = path.join(_settings.outputdirectory, _config.path);
+
+    var transformIcon = (definition) => {
+        var defer = Q.defer();
+        var image = _imageObj.icon.clone();
+
+        image.resize(definition.size, definition.size)
+            .write(path.join(platformPath, definition.name));
+
+        defer.resolve();
+
+        return defer.promise;
+    };
+
+    var transformSplash = (definition) => {
+        var defer = Q.defer();
+        var image = _imageObj.splash.clone();
+
+        var x = (image.bitmap.width - definition.width) / 2;
+        var y = (image.bitmap.height - definition.height) / 2;
+        var width = definition.width;
+        var height = definition.height;
+
+        image
+            .crop(x, y, width, height)
+            .write(path.join(platformPath, definition.name));
+
+        defer.resolve();
+
+        return defer.promise;
+    };
+
+    return fs.ensureDir(platformPath)
+        .then(() => {
+            var definitions = _config.definitions;
+            var actions = [];
+            definitions.forEach((def) => {
+                switch (_config.type) {
+                    case 'icon':
+                        actions.push(transformIcon(def));
+                        break;
+                    case 'splash':
+                        actions.push(transformSplash(def));
+                        break;
+                }
+            });
+            return Q.all(actions)
+                .then(() => {
+                    display.success('Generated ' + _config.type + ' files for ' + _config.platform);
+                });
+        });
+}
+
+function generate(_imageObj, _settings) {
+
+    display.header('Generating files');
+
+    var configs = [
+        // android
+        require('./platforms/icons/android'),
+        require('./platforms/splash/android'),
+        // ios
+        require('./platforms/icons/ios'),
+        require('./platforms/splash/ios'),
+        // blackberry10
+        require('./platforms/icons/blackberry10'),
+    ];
+
+    var actions = [];
+    configs.forEach((config) => {
+        actions.push(generateForConfig(_imageObj, _settings, config));
+    });
+
+    return Q.all(actions)
+        .then(() => {
+            //display.success("Successfully generated all files");
+        });
+
+}
+
+function catchErrors(err) {
+    if (err)
+        console.log('Error: ', err);
+}
+
+// cli helper configuration
+
+program
+    .version('0.1.0')
+    .description('Generates icon & splash screen for cordova/ionic projects using javascript only.')
+    .option('-i, --icon [optional]', 'optional icon file path (default: resources/icon.png)')
+    .option('-s, --splash [optional]', 'optional splash file path (default: resources/splash.png)')
+    .option('-o, -outputdir [optional]', 'optional output directory (default: current directory, outputs to resources/)')
+    .parse(process.argv);
+
+// app settings and default values
+
+var settings = {
+    iconfile: program.icon || path.join('.', 'resources', 'icon.png'),
+    splashfile: program.splash || path.join('.', 'resources', 'splash.png'),
+    outputdirectory: program.outputdir || path.join('.', 'resources')
+};
+
+// app entry point
+
+check(settings)
+    .then(() => generate(imageObjects, settings))
+    .catch((err) => catchErrors(err));