lilacs/gulp/dist/html.js

A web frontend building tool for teamwork, with automaticly compiling, merging, minifying, syncing files to server, supporting distributed servers, ensuring css or html files' inline reference with correct absolute path, and more.

var _ = require('lodash');
var rename = require('gulp-rename');
var replace = require('gulp-replace');
var gap = require('gulp-append-prepend');
var distData = require('./data');

/**
 * html replacement
 */
var htmlReplace = (stream) => {
    _.forEach(distData.currentConfig.htmlReplace, (value, key) => {
        stream.pipe(replace(new RegExp(key, 'g'), value));
    });
};

/**
 * prepend or append string to html
 */
var htmlInsert = (stream) => {
    distData.currentConfig.htmlInsert.start && stream.pipe(gap.prependText(distData.currentConfig.htmlInsert.start));
    distData.currentConfig.htmlInsert.end && stream.pipe(gap.appendText(distData.currentConfig.htmlInsert.end));
};

/**
 * convert html to other kind of file
 */
var htmlToSpecifiedExt = (stream) => {
    stream.pipe(rename({extname: "." + distData.currentConfig.htmlToSpecifiedExt}));
};

module.exports = {
    /**
     * 1. replacement
     * 2. insertion
     * 3. converting
     *
     * all the 3 steps must do in one time
     */
    htmlHandle: (gulp) => {
        return function htmlHandle() {
            var stream;

            stream = gulp.src(distData.currentConfig.buildPaths.distHandleHtml.html + '/**/*.html');
            if (distData.currentConfig.hasHtmlReplace)
                htmlReplace(stream);
            if (distData.currentConfig.hasHtmlInsert)
                htmlInsert(stream);
            if (distData.currentConfig.hasHtmlToSpecifiedExt)
                htmlToSpecifiedExt(stream);

            stream.pipe(gulp.dest(distData.currentConfig.buildPaths.distStore.html));

            return stream;
        }
    }
};