gulpfile.js

var $ = require('gulp-load-plugins')();
var gulp = require('gulp');
var sequence = require('run-sequence');
var panini = require('panini');
var supercollider = require('supercollider');
var rimraf = require('rimraf');
var browser = require('browser-sync');
var foundationDocs = require('foundation-docs');
var octophant = require('octophant');
var inky = require('inky');
var siphon = require('siphon-media-query');
var lazypipe = require('lazypipe');
var fs = require('fs');
var yargs = require('yargs');
var sass = require('gulp-sass');
var postcss = require('gulp-postcss');
var autoprefixer = require('autoprefixer');
var cssnano = require('cssnano');

sass.compiler = require('sass');

// Configuration for the documentation generator
supercollider
  .config({
    template: foundationDocs.componentTemplate,
    marked: foundationDocs.marked,
    handlebars: foundationDocs.handlebars,
    keepFm: true,
    quiet: false,
    pageRoot: 'docs/pages',
    data: {
      repoName: 'foundation-emails',
      editBranch: 'develop'
    }
  })
  .searchConfig({
    sort: ['page', 'component', 'sass variable', 'sass mixin', 'sass function', 'js class', 'js function', 'js plugin option', 'js event'],
    pageTypes: {
      library: function(item) {
        return !!(item.library);
      }
    }
  })
  .adapter('sass')
  .adapter('js');

// Cleans the build folder
gulp.task('clean', function(cb) {
  rimraf('_build', cb);
});

// Copies static documentation assets
gulp.task('copy', function() {
  return gulp.src(['docs/assets/**/*', '!docs/assets/scss/**/*', '!docs/assets/js/**/*'])
    .pipe(gulp.dest('_build/assets'));
  });

// Copies inky-browser
gulp.task('copy-inky', function() {
  return gulp.src(['node_modules/inky/dist/inky-browser.js'])
    .pipe(gulp.dest('_build/assets/js'));
});

// Builds documentation pages
gulp.task('html', function() {
  return gulp.src('docs/pages/**/*')
    .pipe($.cached('docs'))
    .pipe(supercollider.init())
    .pipe(panini({
      root: 'docs/pages/',
      layouts: 'docs/layouts/',
      partials: 'docs/partials/',
      helpers: foundationDocs.handlebarsHelpers
    }))
    .pipe(gulp.dest('_build'))
    .on('finish', function() {
      supercollider.buildSearch('_build/data/search.json', function() {});
    });
});


// Compiles documentation-specific CSS
gulp.task('sass:docs', function() {
  return gulp.src('docs/assets/scss/docs.scss')
    .pipe(sass.sync({ includePaths: [process.cwd()] }).on('error', sass.logError))
    .pipe(postcss([autoprefixer()]))
    .pipe(gulp.dest('_build/assets/css'));
});

// Compiles Foundation-specific CSS
gulp.task('sass:foundation', function() {
  return gulp.src('scss/foundation-emails.scss')
    .pipe(sass.sync().on('error', sass.logError))
    .pipe(gulp.dest('_build/assets/css'));
});

gulp.task('sass', gulp.series('sass:docs', 'sass:foundation'));

// Compiles documentation JavaScript
gulp.task('javascript:docs', function() {
  return gulp.src(['node_modules/foundation-docs/js/*.js', 'docs/assets/js/**/*.js'])
    .pipe($.concat('docs.js'))
    .pipe(gulp.dest('_build/assets/js'));
});

// Generates a Sass settings file from the current codebase
gulp.task('settings', function(cb) {
  return octophant('scss/**/*.scss', {
    title: 'Foundation for Emails Settings',
    output: 'scss/settings/_settings.scss',
    sort: ['global', 'grid', 'block-grid', 'type']
  }, cb);
});

// Lints the Sass codebase
gulp.task('lint', function() {
  return gulp.src('scss/**/*.scss')
    .pipe($.sassLint())
    .pipe($.sassLint.format())
    .pipe($.sassLint.failOnError());
});

// Runs the entire build process
gulp.task('build', gulp.series('clean', 'copy', 'copy-inky', 'html', 'sass', 'javascript:docs', function(cb){
  cb();
}));

// Creates a BrowserSync server
gulp.task('server', gulp.series('build', function(){
  browser.init({server: './_build', port: yargs.argv.port||3001});
}));

// Uploads the documentation to the live server
// gulp.task('deploy:docs', gulp.series('build'), function() {
//   return gulp.src('./_build/**')
//     .pipe($.prompt.confirm('Make sure everything looks right before you deploy.'))
//     .pipe($.rsync({
//       root: './_build',
//       hostname: 'deployer@72.32.134.77',
//       destination: '/home/deployer/sites/foundation-emails-march16'
//     }));
// });


// Runs the build process, spins up a server, and watches for file changes
gulp.task('default', gulp.series('server', function() {
  gulp.watch('docs/**/*', gulp.series('html', browser.reload));
  gulp.watch(['docs/assets/scss/**/*', 'node_modules/foundation-docs/scss/**/*'], gulp.series('sass:docs', browser.reload));
  gulp.watch('scss/**/*.scss', gulp.series('sass:foundation', browser.reload));
}));

gulp.task('test:compile', function() {
  return gulp.src('test/visual/pages/*.html')
    .pipe($.wrap({ src: 'test/visual/_template.html' }))
    .pipe(inky())
    .pipe(inliner('_build/assets/css/foundation-emails.css'))
    .pipe(gulp.dest('test/visual/_build'));
});

gulp.task('test', gulp.series('sass', 'test:compile', function() {
  browser.init({ server: 'test/visual/_build', directory: true });
  gulp.watch('scss/**/*.scss', gulp.series('sass:foundation', browser.reload));
  gulp.watch('test/visual/pages/*.html', gulp.series('test:compile', browser.reload));
}));

gulp.task('templates', function() {
  return gulp.src('templates/*.html')
    .pipe($.wrap({ src: 'test/visual/_template.html' }))
    .pipe(inky())
    .pipe($.prettify({ indent_size: 2 }))
    .pipe(gulp.dest('.templates'))
    .pipe($.zip('all-templates.zip'))
    .pipe(gulp.dest('.templates'));
});

gulp.task('download:build:index', function() {
  return gulp.src('test/visual/_template.html', { base: 'test/visual' })
    .pipe($.injectString.replace('<%= contents %>', ''))
    .pipe($.injectString.replace('../assets/', ''))
    .pipe($.rename('index.html'))
    .pipe(gulp.dest('.download'));
});

gulp.task('download:build:templates', gulp.series('templates', function() {
  return gulp.src('.templates/*.html')
    .pipe(gulp.dest('.download/templates'));
}));

gulp.task('download:build:css', gulp.series('sass:foundation', function() {
  return gulp.src('_build/assets/css/foundation-emails.css')
    .pipe(gulp.dest('.download/css'));
}));

gulp.task('download:build', gulp.series('download:build:index', 'download:build:templates', 'download:build:css', function() {
  return gulp.src('.download/**/*')
    .pipe($.zip('foundation-emails.zip'))
    .pipe(gulp.dest('.'));
}));

// gulp.task('download', gulp.series('download:build', function(done) {
//   return gulp.src('foundation-emails.zip')
//     .pipe($.rsync({
//       hostname: 'deployer@72.32.134.77',
//       destination: '/home/deployer/sites/foundation-sites-6-marketing/downloads/'
//     }));
// }));

gulp.task('dist', gulp.series('sass:foundation', function() {
  return gulp.src('_build/assets/css/foundation-emails.css')
    .pipe(gulp.dest('dist'))
    .pipe(postcss([cssnano()]))
    .pipe($.rename('foundation-emails.min.css'))
    .pipe(gulp.dest('dist'));
}));

function inliner(css) {
  css = fs.readFileSync(css).toString();
  var mqCss = siphon(css);

  var pipe = lazypipe()
    .pipe($.inlineCss, {
      applyStyleTags: false,
      removeStyleTags: false,
      removeLinkTags: false
    })
    .pipe($.injectString.replace, '<!-- <style> -->', '<style>'+mqCss+'</style>')
    .pipe($.htmlmin, {
      collapseWhitespace: false,
      minifyCSS: false,
      maxLineLength: 800
    });

  return pipe();
}