lilacs/gulp/dist/copy_base.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 fs = require('fs');
var fsExtra = require('fs-extra');

var projectConfig = require('../../project_config');
var vars = require('../../data/vars');
var filesCount = require('../../util/files_count');

module.exports = {
    // copy dev directory
    copyDev: (cb) => {
        fsExtra.copySync(projectConfig.buildPaths.dev.dir, projectConfig.buildPaths.copiedDev.dir);
        cb();
    },
    // copy dist_store to dist
    copyDistStore: (cb) =>  {
        fs.existsSync(projectConfig.buildPaths.distStore.dir) &&
        fsExtra.copySync(projectConfig.buildPaths.distStore.dir, projectConfig.buildPaths.dist.dir);

        cb();
    },
    // copy last building generated manifests
    copyManifests: (cb) =>  {
        /**
         * no .keep file in manifests directory,
         * saying it's the first time to build
         */
        if (!fs.existsSync(vars.manifestsDirDotKeepFile)) {
            // create manifests directory
            fsExtra.ensureFileSync(vars.manifestsDirDotKeepFile);
            // create manifests_bak directory
            fsExtra.ensureFileSync(vars.manifestsDirBakDotKeepFile);
        }
        /**
         * has manifests directory, and has other files despite .keep file under manifests directory,
         * that is to say project has ever built.
         * (if only exist .keep file, saying that files changing record is't just not enabled, or just no record )
         */
        else if (filesCount(vars.manifestsDir) > 1) {
            /**
             * has manifests_bak directory, saying that last building encountered an error, and program exit improperly.
             * (if only exist .keep file, saying that last building is the first time, otherwise is N times.)
             */
            if (fs.existsSync(vars.manifestsDirBakDotKeepFile)) {
                fsExtra.removeSync(vars.manifestsDir);
                fsExtra.copySync(vars.manifestsDirBak, vars.manifestsDir);
            }
            // normal state
            else {
                fsExtra.copySync(vars.manifestsDir, vars.manifestsDirBak);
            }
        }

        cb();
    }
};