Shell script to uninstall ports with dependents

Before we begin, I seem to be getting a lot of people visiting this post when searching for “uninstall macports”. Read 2.5 Uninstall from the MacPorts Guide you want to uninstall MacPorts itself.

EDIT: steve k wrote in and opened my eyes to:

sudo port uninstall --follow-dependents portname

So use that instead, and read on only if you like bash.

(I have another script that does the inverseā€”traverses up the dependency chain removing ‘leaf’ nodesā€”that is, ports with no further dependencies. Maybe I’ll make a new post on that oneā€”after making sure it’s also not already available as some hidden option. :p )
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Using the Subversion Ruby Bindings

I work with a distributed team of Ruby (on Rails) developers, and we use Subversion as our repository of choice. Just recently, I wanted to find out which files were recently changed or added to a particular directory of our project.

Doing it manually would’ve been tedious. I also wanted to do it with code so that maybe sometime in the future we might be able to script some behavior depending on the last changed date of a file or group of files in our repository.

I could’ve resorted to merely calling svn info and parsing its output, but I thought maybe this was a good excuse to sharpen my Ruby chops and figure out the Subversion Ruby bindings.
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Building db44 using MacPorts

MacPorts provides an extremely convenient way to install/uninstall various open-source software packages that have been ported to the Mac. It’s sort of like apt-get for Debian or yum for RH/CentOS/Fedora. For a developer like me who uses (and likes to use) open-source software on the Mac, MacPorts is a godsend.

If you were brought to this article, chances are you’ve encountered the same problem as I have when trying to install certain packages that depend on db44 (Version 4.4 of the Berkeley Data Base library). (Chances are, you’re also running on an Intel Mac like me – as I haven’t seen any complaints from people on PPC Macs)
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