initial commit

Author: chrisdwheatley

.gitignore

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+node_modules

index.js

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+const fs = require("fs");
+const filesize = require("filesize");
+const globby = require("globby");
+const boxen = require("boxen");
+const { red, green, bold } = require("chalk");
+const { table, getBorderCharacters } = require("table");
+const imagemin = require("imagemin-keep-folder");
+const gifsicle = require("imagemin-gifsicle");
+const optipng = require("imagemin-optipng");
+const pngquant = require("imagemin-pngquant");
+const svgo = require("imagemin-svgo");
+
+module.exports = () => {
+  return {
+    name: "netlify-plugin-image-optim",
+
+    postBuild: async config => {
+      const files = {};
+      const glob = `${config.constants.BUILD_DIR}/**/*.{gif,jpg,jpeg,png,svg}`;
+      const paths = await globby(glob);
+
+      paths.map(path => {
+        const stats = fs.statSync(path);
+
+        files[path] = {
+          pre: stats.size
+        };
+
+        return null;
+      });
+
+      const optimizedFiles = await imagemin([glob], {
+        plugins: [gifsicle(), optipng(), pngquant(), svgo()]
+      });
+
+      optimizedFiles.map(file => {
+        const { path } = file;
+        const stats = fs.statSync(path);
+
+        files[path].post = stats.size;
+        files[path].diff = files[path].pre - files[path].post;
+
+        return null;
+      });
+
+      const totalSaved = Object.keys(files).reduce((total, filename) => {
+        return files[filename].diff + total;
+      }, 0);
+
+      const formattedData = Object.keys(files).map(filename => {
+        return [
+          filename.replace(config.constants.BUILD_DIR, ""),
+          red(filesize(files[filename].pre)),
+          green(filesize(files[filename].post)),
+          green.bold(filesize(files[filename].diff))
+        ];
+      });
+
+      const data = [
+        [bold("File"), bold("Before"), bold("After"), bold("Reduction")],
+        ...formattedData
+      ];
+
+      console.log(
+        table(data, {
+          border: getBorderCharacters(`norc`),
+          drawHorizontalLine: index => {
+            return index === 1;
+          }
+        })
+      );
+
+      console.log(
+        boxen(bold(`Images optimized - ${green(filesize(totalSaved))} saved`), {
+          padding: {
+            left: 3,
+            right: 3
+          },
+          borderColor: "green"
+        })
+      );
+    }
+  };
+};

license

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+The MIT License (MIT)
+
+Copyright (c) 2019 Chris Draycott-Wheatley
+
+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.