1 - not entirely sure how well eclipse plays with aggregator poms. 4 - we didn't build anything, it already exists.
Much like any system overhaul, if I were in your shoes, I'd work on a proof of concept example in a branch off of your mainline (maybe based on a known good release label). From there you can tinker at will and try and answer these two particular questions with exact details with regard to your company's code/structure/etc. There's always the better builds with maven book as well ;-) -----Original Message----- From: Takapa [mailto:[email protected]] Sent: Tuesday, November 10, 2009 9:15 PM To: [email protected] Subject: RE: How do I get started on Maven? Thanks for your detailed and well thought out reply. I have a small follow up questions, if you have time to answer: In your answer to question 1, you said "and one aggregator pom at the top level". I take it you mean that the top level pom should be in the root workspace folder? If so, how does Eclipse manage this? That is, Eclipse can only display projects within the workspace folder (usually), but does not display random files or folders manually created in the workspace folder unless they are project folders 'added' to the workspace. In your answer to question 4, you mentioned that you built a plug-in for building your OSGi libraries. Can you tell me if there are existing OSGi plugins that will do this, and if so, why you made the decision to develop a special OSGi build/packaging plugin. Thanks, Chris EJ Ciramella-3 wrote: > > 1) How many .pom files do I need and at what level should they be at, can > someone copy and paste my directory structure and detail where the .pom > files should be? > > -- From the hip, at least 5 (one for each module and one aggregator pom at > the top level) - but depending on what else your company is doing or your > own preferences, you may create parent/class type poms that define things > for future osgi modules outside of this particular tree. > > > 2) How do I configure Eclipse to build using Maven? Can I still > incrementally compile with Eclipse? > > -- the m2eclipse plugin is pretty slick and yes, you can still > incrementally build. > > 3) Is Maven OK to use with OSGi projects? > 4) I need to perform some custom steps in the building on my OSGi jars, do > I > need to write my own plugin? > > -- we do, google felix/osgi > > 5) The jars that I am using are my own proprietary jars, do I need to > setup > a local repository somewhere, if so, how? > > -- You should - regardless - to get the proxy benefits. Google up > artifactory/nexus/archiva (we use archiva but are looking to > upgrade/migrate to nexus) > > 6) If I was to solve the same problem with Ant, would it be a better fit? > If > so, how? > > -- not so sure, but you'd have to provide a proof of concept to tell. As > an aside, there are lots of time (especially recently) that I've wished we > used ant+ivy instead of maven 2 for the transparency of what the tool is > doing, full control of the lifecycle, etc. You may find it's a better > fit. But depending on what you do, you may find your build.xml files grow > to 1205298698 lines before you know it (vs. pom.xml files that stay really > small > and neat). > > -- eventually, you'll find other concerns like, how do I release some > module? Does the "maven way" fit well with "our way"? What about site > output? How many revisions should we keep of everything? Etc. etc. It > was a pretty big train wreck years ago when people were used to typing > "ant build-something" to "mvn install" - maven repurposes some pretty > common terms, so a slight relearning is required (not the end of the world > - but be prepared for resistance). More than any other tip out there, > give it a try. Take a look at "mvn archetype:generate" > > -----Original Message----- > From: Takapa [mailto:[email protected]] > Sent: Tuesday, November 10, 2009 11:58 AM > To: [email protected] > Subject: How do I get started on Maven? > > > Hello all, > > I'm a complete beginner to Maven but I have a project that requires it I > think, but I have a few questions (as I cannot figure it out from the > website): > > I have a quite complex codebase where I have a series of projects (in > Eclipse), each of which represents a seperate OSGi service with seperate > dependancies. Some of the projects are dependant on each other. Some are > dependant on external OSGi libraries. > > I wish to know how I can configure Maven to make my life easier and to > take > this config management nightmare away. > > Questions (question 1 is the most importand if all the questions are too > daunting): > > 1) How many .pom files do I need and at what level should they be at, can > someone copy and paste my directory structure and detail where the .pom > files should be? > 2) How do I configure Eclipse to build using Maven? Can I still > incrementally compile with Eclipse? > 3) Is Maven OK to use with OSGi projects? > 4) I need to perform some custom steps in the building on my OSGi jars, do > I > need to write my own plugin? > 5) The jars that I am using are my own proprietary jars, do I need to > setup > a local repository somewhere, if so, how? > 6) If I was to solve the same problem with Ant, would it be a better fit? > If > so, how? > > My current folder structure: > > /workspacefolder > /osgiService1 > /bin > /dist > /lib > lib1_1.0.0.jar > lib2_1.0.0.jar > /src > /osgiService2 > /bin > /dist > /lib > lib2_1.0.0.jar > lib3_1.0.0.jar > > /src > /osgiService3 > /bin > /dist > /lib > lib3_1.0.1.jar > lib4_1.0.0.jar > /src > /osgiService4 > /bin > /dist > /lib > lib4_1.0.0.jar > lib5_1.0.0.jar > /src > > > Thanks so much, > > Chris > -- > View this message in context: > http://old.nabble.com/How-do-I-get-started-on-Maven--tp26287089p26287089.html > Sent from the Maven - Users mailing list archive at Nabble.com. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > > > -- View this message in context: http://old.nabble.com/How-do-I-get-started-on-Maven--tp26287089p26294443.html Sent from the Maven - Users mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
