Jar installation

[Brad Wood]

I've been over the standard installation instructions on the main site several times and they basically consist of using apt-get, installing a deb, or running a shell script that basically does the aforementioned.  

The question is, are there any magic things that happen with the installation package, or can I just direct-download the core jars and dump them in my classpath to use them?  

I went ahead and installed via "curl -s get.pi4j.com | sudo bash" when the jars didn't work only to find out my issues was something unrelated.  Now that I've run your recommended installation method I don't know if it was actually necessary or not.

Thanks!

~Brad

[Robert Savage]

Hi Brad.

Nope ... no magic.  The installation script simply places the Pi4J JARs in a fixed location on the filesystem and provides examples, builds scripts, and a utility "pi4j" shell script for easier command line compiling and launching of a java project that need to include the JARs in its classpath. 

But you can certainly deploy the Pi4J JAR file(s) that you need along with your project as long as they can be picked up in the classpath.

If you want to get rid of the installed version of Pi4J, simply run the command: "pi4j --uninstall"

Thanks, Robert

[Brad Wood]

Excellent.  I'll probably eventually get around to writing a CFML wrapper library for Pi4J that will just come bundled with the jars.  

Thanks!

~Brad

ColdBox Platform Evangelist

Ortus Solutions, Corp 

E-mail: br...@coldbox.org

ColdBox Platform: http://www.coldbox.org 

Blog: http://www.codersrevolution.com

[Brad Wood]

Yep, reverting back to the jars from the last stable release fixed the error.  

"pi4j --uninstall" did not work however:

bash: /usr/bin/pi4j: /bin/bash^M: bad interpreter: No such file or directory

Looks like a Windows line ending got in the script. That's usually what the ^M means.

[Robert Savage]

Yep, that ^M/<CR> issue was fixed in the release build too :-)  Congratulations you have now uncovered the two (known) defects that plagued the last RC build :-)

More ways to uninstall:  http://pi4j.com/install.html#CompleteFull_Removal

Or manually using these commands:

apt-get remove pi4j -y

rm /etc/apt/sources.list.d/pi4j.list

apt-key del te...@pi4j.com

apt-get update

Thanks, Robert