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From: "Jörg Schaible" <joerg.schaible@gmx.de>
To: gentoo-java@lists.gentoo.org
Subject: [gentoo-java] Re: Re: Maven from source - version 2.x or 3.x ?
Date: Thu, 26 May 2011 18:06:15 +0200	[thread overview]
Message-ID: <irltpn$nh3$1@dough.gmane.org> (raw)
In-Reply-To: BANLkTinwPTUMj9TLp5bJuc8YUenk+8wJ8g@mail.gmail.com

Robert Burrell Donkin wrote:

> On Wed, May 25, 2011 at 5:09 PM, Jörg Schaible
> <joerg.schaible@gmx.de> wrote:
>> Hi Robert,
> 
> Hi Jörg
> 
>> Robert Burrell Donkin wrote:
> 
> <snip>
> 
>>> maven seems to be moving towards requiring specific core versions for
>>> builds. some  projects i develop require maven 2, some maven 3. i
>>> manage this situation with a set of custom scripts and installations
>>> independent of gentoo. i expect other developers now work in a similar
>>> way. (same goes for jdks.) the gentoo java stuff just gets in my way
>>> now for development.
>>
>> Why? I have emerged maven:1.0, maven:1.1, maven:2.0, maven:2.2 and
>> maven:3.0. I've selected my default version with eselect. However, I can
>> use any of those versions at the same time:
>>
>> /usr/bin $ ls -lGgo m*v*n*
>> lrwxrwxrwx 1    34 Jan 22 14:07 maven-1.0 -> /usr/share/maven-
>> bin-1.0/bin/maven
>> lrwxrwxrwx 1    34 Jan 22 14:07 maven-1.1 -> /usr/share/maven-
>> bin-1.1/bin/maven
>> lrwxrwxrwx 1     7 Jul 19  2010 mvn -> mvn-3.0
>> lrwxrwxrwx 1    32 Apr 30  2010 mvn-2.0 ->
>> /usr/share/maven-bin-2.0/bin/mvn lrwxrwxrwx 1    32 Apr 30  2010 mvn-2.2
>> -> /usr/share/maven-bin-2.2/bin/mvn lrwxrwxrwx 1    32 Mar 10 18:17
>> mvn-3.0 -> /usr/share/maven-bin-3.0/bin/mvn
>>
>> All that eselect effectively does is to switch the unversioned link. You
>> may call any of those scripts (well, you should not have set MAVEN_HOME
>> at all, the Maven start script will do this for you anyway).
> 
> eselect edits the symlinks. this switches the maven version for the
> entire system. i want to be able to switch maven (and ant and java)
> versions for just a terminal. is there some way to make this work with
> eselect?

Defining aliases? Or use prepend a terminal specific directory to the path 
where you define your own symlinks.

export PATH=~/tmp/term-1:$PATH
ls ~/tmp/term-1
mvn -> /usr/bin/mvn-2.2
jar -> /usr/lib/jvm/sun-jdk-1.6/bin/jar
java -> /usr/lib/jvm/sun-jdk-1.6/bin/java
javac -> /usr/lib/jvm/sun-jdk-1.6/bin/javac
javah -> /usr/lib/jvm/sun-jdk-1.6/bin/javah

For Ant you might create your own slotted ebuilds (maybe as ant-bin to 
separate from the one provided with Gentoo) and use symlinks again.

I am quite sure you can create a little helper script that sets up such 
links for the current terminal when you provide the version for those 
packages as argument.

Cheers,
Jörg




      reply	other threads:[~2011-05-26 16:07 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-22  5:38 [gentoo-java] Maven from source - version 2.x or 3.x ? Kasun Gajasinghe
2011-05-22  7:38 ` [gentoo-java] " kiorky
2011-05-22 14:54 ` [gentoo-java] " Eric Chatellier
2011-05-22 21:54   ` Petteri Räty
2011-05-23  6:15     ` Kasun Gajasinghe
2011-05-23  6:38       ` Petteri Räty
2011-05-23 16:52         ` Kasun Gajasinghe
2011-05-24  9:07           ` Petteri Räty
2011-05-24 11:52             ` Kasun Gajasinghe
2011-05-25 14:33               ` Robert Burrell Donkin
2011-05-25 16:09                 ` [gentoo-java] " Jörg Schaible
2011-05-26  8:44                   ` Robert Burrell Donkin
2011-05-26 15:57                     ` [gentoo-java] " Jörg Schaible
2011-05-26  9:06                   ` [gentoo-java] " Kasun Gajasinghe
2011-05-26 10:58                     ` Robert Burrell Donkin
2011-05-26 16:18                     ` [gentoo-java] " Jörg Schaible
2011-05-26 16:25                       ` Jörg Schaible
2011-05-26 11:10                   ` [gentoo-java] " Robert Burrell Donkin
2011-05-26 16:06                     ` Jörg Schaible [this message]

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