This document compares JS Builder and YCombo, two JavaScript and CSS combining tools. It finds that YCombo is faster, provides higher compression ratios, works cross-platform, and has clearer file mappings compared to JS Builder. The document then provides installation instructions for YCombo, describes how to define seed files and build projects, and mentions plans to integrate YCombo with additional tools and improve the user experience.

1. YCombo
Combine with YUI Compressor

2. JS Builder
• Slow
• Unsatisfied compression ratio with JSMin
• Windows only
• Unclear File-JSB mapping
• Inconsistent with Unicorn
• Annoying in development
• No further maintenance
• No CSS support

3. YCombo
• Much faster
• Higher compression ratio with YUI Compressor
• Cross-Platform
• One-to-One File-Seed mapping
• Consistent with Unicorn
• Easier in development
• Maintained by ourselves
• SVN submitting completeness checking
• Support CSS

4. Installation
• Download from GitHub
• Unzip
• Set environment vars

5. Seed
// js/5v/run/intl-aisn/home.seed.js
// #require <js/5v/lib/ae/ae.js>
// #require “../../../app/overshow/overshow.js”
/* css/4v/home.seed.css */
/* #require <css/4v/common.css> */
/* #require “../dpl/navigat.css” */

6. Build
$ pwd
/home/admin/htdocs/js/5v/run/intl-aisn
$ ycomo home.seed.js
$ ls
home.js home.seed.js
$ pwd
/home/admin/htdocs
$ ycomo css/4v
$ ls css/4v/
home.css home.seed.css

7. YComboGUI
• Launch from context menu
• Drag&Drop support
• Easier to configures
• Easier to check building log
• Version check

8. Next
• Integrate with Pegasus
• Integrate with SVN Proxy
• Bug fix?
• Add more features?
• Improve user experience?

9. Migration
• JSB to Seed conversion tool
• Migrate one JSB each time
• All target files verified by the last SVN submitter
• Publish and observe
• Repeat

10. Q&A