Jonathan Hilgeman

Everything complex is made up of simpler things.

Archive for the ‘Uncategorized’ Category

Napster Bad!

Apr-19-2010
Uncategorized

I tried Napster long ago and decided to give it another shot based on a review on another site.

Overview: 6 bad marks, 2 good marks

BAD: Inconvenience
I was looking for a specific album, so I wanted to see if they had it BEFORE I signed up, but they don’t have an easy way to do it.

BAD: Signup Process
During my trial signup, I got to the payment page, and immediately hit the Back button, since I didn’t want to put in my payment information if they didn’t have what I was looking for RIGHT NOW (why would I pay for an on-demand service that doesn’t meet my current demand?).

GOOD: Bug
After I hit Back, I was suddenly logged into Napster’s web interface without having filled in my payment info, so now I could see their available tracks.

BAD: No-warning Gears Popup
The site apparently uses Google Gears, which is good for speed purposes, but it would’ve been nice to have some warning before the installation warning popped up in my face. I cancelled it the first time, and then the next page popped it up again. No means no, but in the interests of not dealing with a popup on every page, I went ahead and installed it.

BAD: Sluggish UI
The site still felt sluggish, which shouldn’t happen on Gears-enabled sites.

BAD: Bad navigation
This was the real kicker. Bad navigation UI was everywhere.

Once I finally found the section I was looking for, getting around to seeing the albums I wanted was a chore. Napster kept trying to give me the “top 10” of everything from new releases to popular tracks. I wanted to just see new releases and be able to keep paging back to see results 11 through 20 of the New Releases section, but that’s not possible.

I finally found a “Browse by Artist” page (you would think they’d have a “Browse by” set of buttons for other things, like album, release date, etc, but nope). Guess what? The list isn’t sorted alphabetically and there’s no way to do it. So all I could do was search the page for the name, which worked fine, but it’s definitely not intuitive.

Some of the UI felt like it had been copied from iTunes, but without any thought to how the users actually used the site.

BAD: Selection and information
Not only did they not have what I wanted, but the artist page had “featured tracks” and then a list of his albums. The “featured” tracks list contained tracks that were on albums that were not in the list of his albums, and I know there wasn’t a compilation out there yet, so someone messed up somewhere.

GOOD: MP3 format
Even though I didn’t end up buying anything, at least they use DRM-free music.

Experts Exchange Activity

Aug-2-2009
Uncategorized

Lately, I’ve been been a bit more active on Experts Exchange. I’ve been a member since 1998, but I’ve just recently become a little more active in answering questions. I’ve been writing more technical articles and posting them only on Experts Exchange to help build up their new Articles area. I re-posted my E-mail Delivery blog (with a few enhancements and tweaks), as well as four other articles:

5 Steps to Securing Your Web Application:
http://www.experts-exchange.com/articles/Programming/Project_Management/Security/5-Steps-to-Securing-Your-Web-Application.html

16 Tips to Improve E-mail Delivery:  (Experts-Exchange Approved!)
http://www.experts-exchange.com/articles/Software/Internet_Email/16-Tips-to-Improve-Email-Delivery.html

3 Ways to Speed up MySQL:  (Experts-Exchange Approved!)
http://www.experts-exchange.com/articles/Database/MySQL/3-Ways-to-Speed-Up-MySQL.html

IT 101: A Crash Course in RAM and Hard Drives:
http://www.experts-exchange.com/articles/ITPro/IT_Administration/IT-101-A-Crash-Course-in-RAM-and-Hard-Drives.html

6 Steps to Better Web Programming:
http://www.experts-exchange.com/articles/Web_Development/Web_Languages-Standards/PHP/6-Steps-to-Better-Web-Programming.html

 I also reached “Guru” status in their PHP zone, so I’m now waiting for my PHP Guru t-shirt to arrive in the mail. I got a PHP Master t-shirt a while back. There’s nothing quite like free t-shirts!

Version Control – SVN vs. VSS vs. Git

Jul-16-2009
Uncategorized

Someone asked a question about version control software on Experts Exchange recently, and my answer turned into potential blog material:

Version Control Concepts
I’ve used Subversion (SVN), Visual SourceSafe (VSS), and Git. The concepts are all the same, though. Version control basically means that all of your application files are “checked in” to a big container (called a repository) that sits in some central location (usually a server) that your developers can all access.

To work on the application, you usually “check out” the project from the repository. This basically downloads the files from the repository onto your local computer so you can edit them and so on. Usually, developers have their own testing environment on their local computer so they can quickly test their changes. After a developer has finished with his/her changes, the dev “commits” the files back to the repository. This usually does not remove the files from the developer’s machine – it just copies the changes back to the server. The server receives the files, figures out what’s new and what’s changed, and then applies those changes to the repository.

The version control part of it comes into the picture here. The server keeps track of each change of the file (when it’s committed). So when you start with a file that just has “abc” in it and you edit the file, change it to “abcdef” and commit it back to the server, the server now knows that the LATEST version of the file has “abcdef” but if you ever need a previous version (often called a “revision”), then you can request it from the server.

Using Version Control for Software Development Lifecycle
What I often do for smaller projects is have one repository. I then set up my production, testing, and development environments all as working copies (meaning that each is basically a “checked out” version of the application). The working copies don’t update themselves automatically, so each environment will stay at its particular revision until you tell it to update.

So if I start out at revision #1, all 3 of my environments are also at revision #1. I then make changes and stuff on my development machine and commit the changes (let’s say I do this a few times unti l get to revision 4 or something). Now my environments look like:

Production: Revision #1
Testing: Revision #1
Development: Revision #4
Central Server / Repository: Latest Revision is #4

When I’m ready to officially test, I go to the Testing server and simply use the appropriate tools to check out the files for Revision #4. (Side note: you usually don’t have to remember revision numbers. You can often just tell the tool to check out the latest revision, whatever it is. But if you have a lot of developers or something, you may want to specify the revision in case other people are committing things that should not be in the official testing environment). Now my environments look like:

Production: Revision #1
Testing: Revision #4
Development: Revision #4
Central Server / Repository: Latest Revision is #4

Let’s say revision #4 tested successfully, and is now considered ready for production. At this point, I go to the Production environment, and use the version control tools to update to Revision #4. (I always specify the revision for production releases, just to be extra certain I’m not pushing anything that should not be pushed).

Now all environments are at Revision #4, and the lifecycle is complete.

That’s basically how I use version control systems to control new version releases of my applications.

Now that I’ve offered a basic explanation of the idea of version control, here are some specifics:

Visual SourceSafe – Not Good
I started using Visual SourceSafe (VSS). About 4 months into a non-.NET project, we ditched it because it was occasionally corrupting files. It seems okay for .NET projects, but I wouldn’t trust it on anything else.

Subversion – Better, Friendlier
I then used SVN, and it worked decently well for the most part. It has 3 downsides, in my opinion:

#1. After about a year, I noticed that there was a significant decrease in speed when checking for updated files or committing updated files.

#2. SVN creates a .svn folder in each folder of your application in order to track the files. Normally, this doesn’t bother me, but it did significantly increase the number of files in the system (the .svn folder contains a structure that has separate files that contain information about each file that is tracked).

#3. SVN is not very smart about merging branches of development. This may not be an issue for you if you only have a couple developers or if you don’t really want to use branches at all.

One upside is that there are a lot of nice tools you can use with SVN, like TortoiseSVN. Many of those tools make the process pretty simple (1 or 2 clicks).

Git – Best, Not as Friendly
Git is what I’m using now for most of my projects. I use it because it is much faster than SVN in many respects (especially when you have a lot of small files), it only needs one .git folder in the top folder of each application to track the entire app (instead of the many .svn folders), and it is much better at merging and branching (which is what I use for more complicated projects).

The only two downsides of Git that I’ve found are:
#1. it is not as immediately user-friendly as SVN. There IS a TortoiseGit program that is supposed to simulate the popular TortoiseSVN program, but I have not tried it yet. I use a tool that gives me a Linux-like shell on Windows and I use that. Once you’re used to it, it’s just about as fast (if not faster) than the GUI tools.

#2. there are some SVN commands that were nice that have not yet been introduced to Git (some analysis tools, mainly). This is not a big deal, though, because of Git’s other strengths that let me easily work around this.

Conclusion
Ultimately, I would go with SVN or Git. Maybe use SVN to start out and get used to the whole idea, and then upgrade to Git when you recognize the differences. They are both free, open-source products (with free, open-source client tools, too), so you’re not really going to spend any money on either one.