Re: [m2e-users] Reducing build times

[Anders Hammar <anders@xxxxxxxxxx>]

So you're doing a Maven build? If so it will take some time (the same amount of time as from command line). The idea (my take on this at least) when using the IDE is not to have to do a (full) Maven build all the time, but rather utilize the fact that Eclipse will compile in runtime. Eclipse will notify you of compilation errors (as it will when not using m2eclipse and a Maven project). You want to verify someting in the code? Simple, just execute that specific unit test from within Eclipse (Run as Junit test).

You do a (full) Maven build when you certain things work and you just want to verify by building the entire project.

This is at least how I try do develop my code,
/Anders

On Thu, Aug 4, 2011 at 22:28, Jan Ploski <jpl@xxxxxxxxxxxxx> wrote:

Sorry, I forgot to mention: I'm using 1.0.0.20110607-2117, so that shouldn't be an issue.

>From the console output I see the time is spread among modules (module names changed to protect the innocent):

[INFO] Reactor Summary:
[INFO]
[INFO] Parent project ..................... SUCCESS [0.521s]
[INFO] Util ............................... SUCCESS [3.082s]
[INFO] Security ........................... SUCCESS [1.156s]
[INFO] Business interfaces ................ SUCCESS [1.272s]
[INFO] Security implementation ............ SUCCESS [0.790s]
[INFO] Business services implementation ... SUCCESS [1.418s]
[INFO] WAR ................................ SUCCESS [7.738s]
[INFO] EAR ................................ SUCCESS [5.742s]

So I suppose my question may be more of a "best practices" / "is that normal" nature: given such a project structure, and my act of changing of a single source file, should I "suck it up", or am I justified in thinking that some optimizations in the development process are needed. I have been using scripting languages much recently, so delays of this kind do cause annoyance. But they might be just a fact of life given the different technology?...

Regards,
Jan Ploski

Anders Hammar wrote:

What version of m2e are you using? v1.0 is a great improvement compared
to the older 0.x versions (where the behavior you're describing could
happen).

/Anders

On Thu, Aug 4, 2011 at 18:21, Jan Ploski <jpl@xxxxxxxxxxxxx

<mailto:jpl@xxxxxxxxxxxxx>> wrote:

   Hi,

   As a new user of M2Eclipse, I am wondering about typical and minimal
   build times. What I have here is a multi-module project structured
   according to the usual recommendations (much like the multi-module
   enterprise example in the Maven by Example book). Building it (from
   non-dirty state) using M2Eclipse (or directly with Maven) takes
   about 30 seconds. So after any slightest change in code I have to
   wait for at least 30 seconds before seeing the effect of my change
   in the browser. Given that Eclipse compiles the individual classes
   instantly as I type, the build step seems like a great waste and an
   unnecessary overhead.

   What are your impressions? Does working with Maven necessarily
   induce such delays into the edit-compile-run cycle and should one
   treat this overhead as a price for having a portable build system
   ("just buy faster hardware")? Or are there any tried-and-true tricks
   for speeding up the process? Right now I'm thinking about hacking
   together something project-specific that detects changes in .class
   files and then updates the corresponding resources in WEB-INF. But
   that's very crude and essentially means working around Maven (in
   development) instead of relying on it equally everywhere.

   Regards,
   Jan Ploski
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