Issue 6210 - Implement Subscription (Double-opt-in) template for newsletter

gulpfile.js

Index: gulpfile.js
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new file mode 100644
--- /dev/null
+++ b/gulpfile.js
@@ -0,0 +1,102 @@
+/*!
+ * This file is part of eyeomail.com.
+ * Copyright (C) 2017-present eyeo GmbH
+ *
+ * eyeomail.com is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * eyeomail.com is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with eyeomail.com.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+const gulp = require("gulp");
+const gutil = require("gulp-util");
+const rename = require("gulp-rename");
+const sass = require("gulp-sass");
+const postcss = require("gulp-postcss");
+const scss = require("postcss-scss");
+const autoprefixer = require("autoprefixer");
+const replace = require("replace");
+const fs = require("fs");
+const readFilePromise = require("fs-readfile-promise");
+
+/******************************************************************************
+ * CSS
+ ******************************************************************************/
+
+gulp.task("compileCss", function() {
+  return gulp.src("./src/scss/main.scss")
+    .pipe(postcss([autoprefixer()], {syntax: scss}).on("error", gutil.log))
+    .pipe(sass({outputStyle: "compact"}).on("error", gutil.log))
+    .pipe(gulp.dest("./dist"));
+});
+
+gulp.task("inlineCss", ["compileCss", "moveTemplates"], function() {
+  return fs.readFile("./dist/main.css", "utf8", function (err, styles) {
+    if (err) throw err;
+
+    const replacement = `<!-- styles:start -->
+<style>
+${styles}
+</style>
+<!-- styles:end -->`;
+
+    replace({
+      regex: /<!-- styles:start -->([\s\S]*?)<!-- styles:end -->/,
+      replacement: replacement,
+      paths: ["dist/signup.html"],
+      recursive: true,
+      silent: true,
+    });
+  });
+});
+
+gulp.task("css", ["inlineCss"]);
+
+/******************************************************************************
+ * Template
+ ******************************************************************************/
+
+gulp.task("moveTemplates", function() {
+  const templateFiles = ["./src/templates/signup.html", 
+                         "./src/templates/confirm-email.html", 
+                         "./src/templates/subscription-confirmed-email.html"];
+
+  return gulp.src(templateFiles).pipe(gulp.dest("./dist"));
+});
+
+gulp.task("backclick", function() {
+  const templateFiles = ["./dist/signup.html", 
+                         "./dist/confirm-email.html", 
+                         "./dist/subscription-confirmed-email.html"];
+
+  return Promise.all(templateFiles.map((file) => readFilePromise(file)))
+    .then((buffers) => Promise.all(buffers.map((buffer) => buffer.toString())))
+    .then((contents) => {
+      fs.writeFile("./dist/backclick.html", contents.join(""));
+    });
+});
+
+gulp.task("template", ["css"]);
+
+/******************************************************************************
+ * Watch
+ ******************************************************************************/
+
+gulp.task("watch", function() {
+  gulp.watch("./src/scss/**/*.scss", ["css"]);
+  gulp.watch("./src/templates/*.html", ["template", "backclick"]);
+});
+
+/******************************************************************************
+ * Default
+ ******************************************************************************/
+
+gulp.task("default", ["template", "css", "watch"]);