Gulpfile and sitemap for UnCSS + Gulp + Sage

sage-gulpfile.js

// ## Globals
var argv = require('minimist')(process.argv.slice(2));
var autoprefixer = require('gulp-autoprefixer');
var browserSync = require('browser-sync').create();
var changed = require('gulp-changed');
var concat = require('gulp-concat');
var flatten = require('gulp-flatten');
var gulp = require('gulp');
var gulpif = require('gulp-if');
var imagemin = require('gulp-imagemin');
var jshint = require('gulp-jshint');
var lazypipe = require('lazypipe');
var less = require('gulp-less');
var merge = require('merge-stream');
var cssNano = require('gulp-cssnano');
var plumber = require('gulp-plumber');
var rev = require('gulp-rev');
var runSequence = require('run-sequence');
var sass = require('gulp-sass');
var sourcemaps = require('gulp-sourcemaps');
var uglify = require('gulp-uglify');
var uncss = require('gulp-uncss'); //add for uncss
var exec = require('child_process').exec; //add for uncss
var file = require('gulp-file'); //add for uncss

// See https://github.com/austinpray/asset-builder
var manifest = require('asset-builder')('./assets/manifest.json');

// `path` - Paths to base asset directories. With trailing slashes.
// - `path.source` - Path to the source files. Default: `assets/`
// - `path.dist` - Path to the build directory. Default: `dist/`
var path = manifest.paths;

// `config` - Store arbitrary configuration values here.
var config = manifest.config || {};

// `globs` - These ultimately end up in their respective `gulp.src`.
// - `globs.js` - Array of asset-builder JS dependency objects. Example:
//   ```
//   {type: 'js', name: 'main.js', globs: []}
//   ```
// - `globs.css` - Array of asset-builder CSS dependency objects. Example:
//   ```
//   {type: 'css', name: 'main.css', globs: []}
//   ```
// - `globs.fonts` - Array of font path globs.
// - `globs.images` - Array of image path globs.
// - `globs.bower` - Array of all the main Bower files.
var globs = manifest.globs;

// `project` - paths to first-party assets.
// - `project.js` - Array of first-party JS assets.
// - `project.css` - Array of first-party CSS assets.
var project = manifest.getProjectGlobs();

// CLI options
var enabled = {
    // Enable static asset revisioning when `--production`
    rev: argv.production,
    // Disable source maps when `--production`
    maps: !argv.production,
    // Fail styles task on error when `--production`
    failStyleTask: argv.production,
    // Fail due to JSHint warnings only when `--production`
    failJSHint: argv.production,
    // Strip debug statments from javascript when `--production`
    stripJSDebug: argv.production,
    // UnCSS when `--production`
    unCss: argv.production
};

// Path to the compiled assets manifest in the dist directory
var revManifest = path.dist + 'assets.json';

// ## Reusable Pipelines
// See https://github.com/OverZealous/lazypipe

// ### CSS processing pipeline
// Example
// ```
// gulp.src(cssFiles)
//   .pipe(cssTasks('main.css')
//   .pipe(gulp.dest(path.dist + 'styles'))
// ```
var cssTasks = function(filename) {
    return lazypipe()
        .pipe(function() {
            return gulpif(!enabled.failStyleTask, plumber());
        })
        .pipe(function() {
            return gulpif(enabled.maps, sourcemaps.init());
        })
        // .pipe(function() {
        //   return gulpif('*.less', less());
        // })
        .pipe(function() {
            return gulpif('*.scss', sass({
                outputStyle: 'nested', // libsass doesn't support expanded yet
                precision: 10,
                includePaths: ['.'],
                errLogToConsole: !enabled.failStyleTask
            }));
        })
        .pipe(concat, filename)
        //uncss
        .pipe(function() {
            return gulpif(enabled.unCss, uncss({
                html: require('./sitemap.json'),
                ignore: [
                    /(#|\.)fancybox(\-[a-zA-Z]+)?/,
                    /expanded/,
                    /js/,
                    /wp-/,
                    /align/,
                    /admin-bar/,
                    // needed for Bootstrap's transitions
                    ".fade",
                    ".fade.in",
                    ".collapse",
                    ".collapse.in",
                    ".navbar-collapse",
                    ".navbar-collapse.in",
                    ".collapsing",
                    // needed for the `<noscript>` warning; remove them when fixed in uncss
                    ".alert-danger",
                    ".visible-xs",
                    ".noscript-warning",
                    // currently only in a IE conditional so uncss doesn't see it
                    // ".close", has error in syntax-opacity
                    ".alert-dismissible",
                    ".open",
                    //theme specific
                    /shrink/,
                    ".navbar-brand-s",
                    // Woocommerce
                    /woocommerce/,
                    // Flexible
                    /module/,
                    ".mod-default",
                    ".mod-primary",
                    ".mod-secondary",
                    ".mod-white",
                    ".mod-gray",
                    ".mod-dark"
                ],
            }));
        })
        .pipe(autoprefixer, {
            browsers: [
                'last 2 versions',
                'android 4',
                'opera 12'
            ]
        })
        .pipe(cssNano, {
            safe: true
        })
        .pipe(function() {
            return gulpif(enabled.rev, rev());
        })
        .pipe(function() {
            return gulpif(enabled.maps, sourcemaps.write('.', {
                sourceRoot: 'assets/styles/'
            }));
        })();
};

// ### JS processing pipeline
// Example
// ```
// gulp.src(jsFiles)
//   .pipe(jsTasks('main.js')
//   .pipe(gulp.dest(path.dist + 'scripts'))
// ```
var jsTasks = function(filename) {
    return lazypipe()
        .pipe(function() {
            return gulpif(enabled.maps, sourcemaps.init());
        })
        .pipe(concat, filename)
        .pipe(uglify, {
            compress: {
                'drop_debugger': enabled.stripJSDebug
            }
        })
        .pipe(function() {
            return gulpif(enabled.rev, rev());
        })
        .pipe(function() {
            return gulpif(enabled.maps, sourcemaps.write('.', {
                sourceRoot: 'assets/scripts/'
            }));
        })();
};

// ### Write to rev manifest
// If there are any revved files then write them to the rev manifest.
// See https://github.com/sindresorhus/gulp-rev
var writeToManifest = function(directory) {
    return lazypipe()
        .pipe(gulp.dest, path.dist + directory)
        .pipe(browserSync.stream, { match: '**/*.{js,css}' })
        .pipe(rev.manifest, revManifest, {
            base: path.dist,
            merge: true
        })
        .pipe(gulp.dest, path.dist)();
};

// ## Gulp tasks
// Run `gulp -T` for a task summary


// ###sitemap
// prepare sitemap.json file
gulp.task('sitemap', function(cb) {
    if (enabled.unCss) {
        return exec('curl -L --silent --output sitemap.json ' + manifest.config.devUrl + '/?show_sitemap', function (err, stdout, stderr) {
          //console.log(stdout);
          //console.log(stderr);
          cb(err);
        });
    } else {
        return file('sitemap.json', '[]')
            .pipe(gulp.dest('./'));
    }
});

// ### Styles
// `gulp styles` - Compiles, combines, and optimizes Bower CSS and project CSS.
// By default this task will only log a warning if a precompiler error is
// raised. If the `--production` flag is set: this task will fail outright.
gulp.task('styles', ['wiredep', 'sitemap'], function() {
    var merged = merge();
    manifest.forEachDependency('css', function(dep) {
        var cssTasksInstance = cssTasks(dep.name);
        if (!enabled.failStyleTask) {
            cssTasksInstance.on('error', function(err) {
                console.error(err.message);
                this.emit('end');
            });
        }
        merged.add(gulp.src(dep.globs, { base: 'styles' })
            .pipe(cssTasksInstance));
    });
    return merged
        .pipe(writeToManifest('styles'));
});

// ### Scripts
// `gulp scripts` - Runs JSHint then compiles, combines, and optimizes Bower JS
// and project JS.
gulp.task('scripts', ['jshint'], function() {
    var merged = merge();
    manifest.forEachDependency('js', function(dep) {
        merged.add(
            gulp.src(dep.globs, { base: 'scripts' })
            .pipe(jsTasks(dep.name))
        );
    });
    return merged
        .pipe(writeToManifest('scripts'));
});

// ### Fonts
// `gulp fonts` - Grabs all the fonts and outputs them in a flattened directory
// structure. See: https://github.com/armed/gulp-flatten
gulp.task('fonts', function() {
    return gulp.src(globs.fonts)
        .pipe(flatten())
        .pipe(gulp.dest(path.dist + 'fonts'))
        .pipe(browserSync.stream());
});

// ### Images
// `gulp images` - Run lossless compression on all the images.
gulp.task('images', function() {
    return gulp.src(globs.images)
        .pipe(imagemin({
            progressive: true,
            interlaced: true,
            svgoPlugins: [{ removeUnknownsAndDefaults: false }, { cleanupIDs: false }]
        }))
        .pipe(gulp.dest(path.dist + 'images'))
        .pipe(browserSync.stream());
});

// ### JSHint
// `gulp jshint` - Lints configuration JSON and project JS.
gulp.task('jshint', function() {
    return gulp.src([
            'bower.json', 'gulpfile.js'
        ].concat(project.js))
        .pipe(jshint())
        .pipe(jshint.reporter('jshint-stylish'))
        .pipe(gulpif(enabled.failJSHint, jshint.reporter('fail')));
});

// ### Clean
// `gulp clean` - Deletes the build folder entirely.
gulp.task('clean', require('del').bind(null, [path.dist]));

// ### Watch
// `gulp watch` - Use BrowserSync to proxy your dev server and synchronize code
// changes across devices. Specify the hostname of your dev server at
// `manifest.config.devUrl`. When a modification is made to an asset, run the
// build step for that asset and inject the changes into the page.
// See: http://www.browsersync.io
gulp.task('watch', function() {
    browserSync.init({
        files: ['{lib,templates}/**/*.php', '*.php'],
        proxy: config.devUrl,
        snippetOptions: {
            whitelist: ['/wp-admin/admin-ajax.php'],
            blacklist: ['/wp-admin/**']
        }
    });
    gulp.watch([path.source + 'styles/**/*'], ['styles']);
    gulp.watch([path.source + 'scripts/**/*'], ['jshint', 'scripts']);
    gulp.watch([path.source + 'fonts/**/*'], ['fonts']);
    gulp.watch([path.source + 'images/**/*'], ['images']);
    gulp.watch(['bower.json', 'assets/manifest.json'], ['build']);
});

// ### Build
// `gulp build` - Run all the build tasks but don't clean up beforehand.
// Generally you should be running `gulp` instead of `gulp build`.
gulp.task('build', function(callback) {
    runSequence('styles',
        'scripts', ['fonts', 'images'],
        callback);
});

// ### Wiredep
// `gulp wiredep` - Automatically inject Less and Sass Bower dependencies. See
// https://github.com/taptapship/wiredep
gulp.task('wiredep', function() {
    var wiredep = require('wiredep').stream;
    return gulp.src(project.css)
        .pipe(wiredep())
        .pipe(changed(path.source + 'styles', {
            hasChanged: changed.compareSha1Digest
        }))
        .pipe(gulp.dest(path.source + 'styles'));
});

// ### Gulp
// `gulp` - Run a complete build. To compile for production run `gulp --production`.
gulp.task('default', ['clean'], function() {
    gulp.start('build');
});

sitemap.php

function show_sitemap() {
  if(WP_ENV === 'development' && isset($_GET['show_sitemap'])) {
    $the_query = new \WP_Query(array('post_type' => 'any', 'posts_per_page' => '-1', 'post_status' => 'publish'));
    $urls = array();
    while($the_query->have_posts()) {
      $the_query->the_post();
      $urls[] = get_permalink();
    }

    // include category-template(s), one would actually suffice...
    $categories = get_categories();
    
    foreach($categories as $category) {
      
      $urls[] = home_url().get_category_link( $category->term_id );
    }
    
    $urls[] = get_search_link('liebe'); // some search-term to include search-template, should throw at least one result 
    $urls[] = home_url().'/somethingyouwillneverfind'; // generate 404-template page
    $urls[] = home_url(); // include home-url (no static page is used)
    
    die(json_encode($urls));
  }
}
add_action('template_redirect', __NAMESPACE__ . '\\show_sitemap');