Re: [jbosstools-dev] m2e/m2e-wtp Questions
Le lundi 17 décembre 2012 10:42:20, Peter Palaga a écrit :
Hi Fred & JBT-ers,
Asking now what I have not managed to ask personally in Brno.
(1) Is it safe to run an external (command line) maven command in a
workspace folder? Something like
cd ~/workspace/gatein-portal
mvn clean install
IIRC, about a year ago when I tried that last time, Eclipse was quite
unhappy about it. I do not remember what the error messages were but
since then I always rsync my workspace to /tmp/gatein-build and build
there. Is it safe by design now?
My personnal experience is, it works in general, but design as not
changed, so I wouldn't expect it to work *reliably*. If you cleaned and
recompiled your project, your classes will be out-of-sync with the
workspace (this is not a m2e feature/bug but eclipse's behaviour). If
you manually refresh your project, Eclipse will most likely promote the
incremental build into a new full build. Now if you make eclipse
refresh resources automatically (see workspace prefs), you might risk
getting it recompiling your classes at the same time as they're being
wiped by a CLI build, that could lead to unexpected behaviour.
(2) Could perhaps "Maven > Update Project..." be run
automatically
when necessary?
There are situations in which "Update Project" is proposed as the
first quick fix. And it solves the problem indeed. Why does m2e not
run it by itself if it already can detect quite reliably that it
should be run?
Not sure it's a good idea. "Update project" triggers a new build. You
*might* risk getting into an infinite loop. It's also a very slow
process and sometimes is caused by false positives. That would really
hamper build performance in general I think. Igor knows the build
process way better than me so you might want to ask on m2e-dev ML to
get a better answer.
(3) Finding sources during debug. Could you please direct me to a web
page or source file where the lookup sequence is
documented/implemented? I'd like to have a chance to check it when I
get "source not found" next time.
See
https://community.jboss.org/en/tools/blog/2012/01/24/jboss-source-lookup
Thanks in advance & best regards,
Peter