denis-sokolov/remote-dotfiles

'use strict';

var path = require('path');

var mapStream = require('map-stream');
var Promise = require('promise');

var removeExt = function(p){
    return p.substring(0, p.length - path.extname(p).length);
};

module.exports = function(util, app){
    var bin = util.settings(app, 'bin');
    var sources = util.settings(app, 'bash');

    return function(stream, target){
        return new Promise(function(resolve){
            if (!sources() && !bin())
                return resolve();

            var waitFor = [];

            var srces = sources() || [];

            if (bin()) {
                // Force .bashrc to be created
                srces.push('');

                waitFor.push(new Promise(function(resolveInner){
                    util.src(bin(), target)
                        .pipe(util.rename(function(name){
                            return '.bin/' + removeExt(name);
                        }))
                        .pipe(mapStream(function(file, done){
                            file.executable = true;
                            done(null, file);
                        }))
                        .pipe(stream, {end: false})
                        .on('end', function(){
                            resolveInner();
                        });
                }));
            }

            var ours = util.src(srces, target)
                .pipe(util.concat('.bashrc'))
                .pipe(util.comment.stream('# ', 'Use .bashrc.local for editing'))
                .pipe(util.append('[ -f .bashrc.local ] && . .bashrc.local'));

            if (bin())
                ours = ours.pipe(util.append('export PATH=".bin:$PATH"'));

            ours.pipe(stream, {end: false});
            ours.on('end', function(){
                Promise.all(waitFor).then(resolve);
            });
        });
    };
};