I've been using FPM to build native packages for applications for the last few months and so far I cannot believe just how cool it is. It can create RPMs and DEBs from ruby gems, python modules, node packages and even directories. The last one is very useful for packaging up stand-alone java apps. Check it out, you may like it too....
It is now possible to invalidate objects (files) in AWS CloudFront distributions. Handy when someone, like me, occasionally publishes files with the wrong content type. Here is how I implement this invalidation in python....
I cannot stand Maven. It makes me nauseous. However that does not seem to be the case for other institutionalised developers. Here’s what I did on a project where I wanted to isolate its craziness and still use jruby and rake. namespace :maven do M2_HOME = "binaries/apache-maven-3.0.3" desc "Run the maven package goal" task :package => :clean do mvn "package" end desc "Run the application" task :application => :clean do mvn "test-compile", "exec:java", "-Dexec....
On a few projects now I’ve used jruby with rake. I know that I can use rvm and just fetch the gems per project, but for developers stuck on windows that way is a little more than difficult. So here’s how I package up rubygems in a JAR. mkdir gemjar java -jar jruby-complete-1.6.3.jar -S gem install -i ./gemjar haml --version 3.1.2 --no-rdoc --no-ri java -jar jruby-complete-1.6.3.jar -S gem install -i ....
Here’s a neat way of using ivy with jruby, rake & ant. task :ivy_retrieve do ant.taskdef :resource => "org/apache/ivy/ant/antlib.xml" do classpath :location => "ivy/ivy-2.2.0.jar" end ant.configure :file => "ivy/ivysettings.xml" ant.resolve :file => "ivy/ivy.xml" ant.retrieve :pattern => "lib/[conf]/[type]/[artifact]-[revision].[ext]", :sync => "true" puts end Still using ant, still angle bracket free (except for ivy, sigh). Read my previous post if you want to know more about jruby, rake and ant....
For some time now I’ve been thinking about all the different approaches that I have seen and heard with the goal of zero-downtime deployment for a horizontally-scaled application that relies on a database or some form of persistent storage. On most of the projects that I have worked on this was not a requirement, although a speedy and automated deployment was preferred. However, other projects were for websites and applications that formed the backbone of a 24/7 company and as such the idea of even a couple of minutes downtime was unacceptable....
I've released a new version of my S3DropBox on GitHub. I've moved the project to GitHub so that I can have all my current active projects in one place. Check it out in its new home at https://github.com/tomcz/s3dropbox. This release uses the AWS java libraries. They are finally good enough for me to stop creating my own wheels and vulcanising my own rubber. As a bonus the S3DropBox creates URLs in virtual hosted format (eg....
For the longest time I’ve been writing Java build files in XML and I’ve always felt a little dirty. Not too long ago I was re-introduced to rake by a colleague (thanks Fabio) and how nicely it integrates with ant. This means that you can now turn this: <project name="spring-conversations" default="build" basedir="."> <property name="src.dir" location="src/main" /> <property name="test.dir" location="src/test" /> <property name="build.dir" location="build" /> <property name="dist.dir" location="${build.dir}/dist" /> <property name="report.dir" location="${build....
Not that long ago I gave a ThoughtWorks geek night presentation on Post-Redirect-Get and how to mess with the Spring Framework to make it happen. I've put up the presentation and the code that I used for it on GitHub. Feedback is always welcome....
Here is how I set up the Apache Ivy dependency manager so that it can fetch springframework JARs from the SpringSource Enterprise Bundle Repository. Listing: ivysettings-custom.xml <ivysettings> <resolvers> <url name="com.springsource.repository.bundles.release"> <ivy pattern="http://repository.springsource.com/ivy/bundles/release/[organisation]/[module]/[revision]/[artifact]-[revision].[ext]" /> <artifact pattern="http://repository.springsource.com/ivy/bundles/release/[organisation]/[module]/[revision]/[artifact]-[revision].[ext]" /> </url> <url name="com.springsource.repository.bundles.external"> <ivy pattern="http://repository.springsource.com/ivy/bundles/external/[organisation]/[module]/[revision]/[artifact]-[revision].[ext]" /> <artifact pattern="http://repository.springsource.com/ivy/bundles/external/[organisation]/[module]/[revision]/[artifact]-[revision].[ext]" /> </url> <chain name="spring"> <resolver ref="com.springsource.repository.bundles.release"/> <resolver ref="com.springsource.repository.bundles.external"/> </chain> <ibiblio name="jboss" root="http://repository.jboss.org/maven2/" m2compatible="true"/> <chain name="main" dual="true"> <resolver ref="shared" /> <resolver ref="public" /> <resolver ref="spring" /> <resolver ref="jboss" /> </chain> <chain name="default" returnFirst="true"> <resolver ref="local" /> <resolver ref="main" /> </chain> </resolvers> </ivysettings> Listing: ivysettings....