[gentoo-java] Java packages in eclipse build path

[gentoo-java] Java packages in eclipse build path

[Pascal Flöschel]

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Hi

Is there a fast and simple way of using the package.env (e.g.
/usr/share/axis-1/package.env ) to add libraries into the eclipse build
path? Manually reading the package.env and adding every jar by hand
takes quite some time.

Thanks+Bye
Pascal

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Re: [gentoo-java] Java packages in eclipse build path

[jieryn]

On Jan 13, 2008 6:44 PM, Pascal Flöschel <pascal.floeschel@gmx.de> wrote:
> Is there a fast and simple way of using the package.env (e.g.
> /usr/share/axis-1/package.env ) to add libraries into the eclipse build
> path? Manually reading the package.env and adding every jar by hand
> takes quite some time.

I do stuff like this quite a bit, java-config is simple but great tool
to learn. You can add the output of the following scriptlet to your
.classpath file inside your project.

I use something like this for many purposes,

#!/bin/bash

for pkg in $(java-config --list-available-packages | sort | perl -pi
-e 's/^\[(.*?)].*/$1/g')
  do
    echo -n "<classpathentry kind=\"lib\" path=\"/usr/share/$pkg/lib/$pkg.jar\""
    echo    " sourcepath=\"/usr/share/$pkg/sources/$pkg-src.zip\"/>"
  done

-jesse
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Re: [gentoo-java] Java packages in eclipse build path

[Pascal Flöschel]

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jieryn@gmail.com schrieb:
| On Jan 13, 2008 6:44 PM, Pascal Flöschel <pascal.floeschel@gmx.de> wrote:
|> Is there a fast and simple way of using the package.env (e.g.
|> /usr/share/axis-1/package.env ) to add libraries into the eclipse build
|> path? Manually reading the package.env and adding every jar by hand
|> takes quite some time.
|
| I do stuff like this quite a bit, java-config is simple but great tool
| to learn. You can add the output of the following scriptlet to your
| .classpath file inside your project.
|
| I use something like this for many purposes,
|
| #!/bin/bash
|
| for pkg in $(java-config --list-available-packages | sort | perl -pi
| -e 's/^\[(.*?)].*/$1/g')
|   do
|     echo -n "<classpathentry kind=\"lib\"
path=\"/usr/share/$pkg/lib/$pkg.jar\""
|     echo    " sourcepath=\"/usr/share/$pkg/sources/$pkg-src.zip\"/>"
|   done
|
| -jesse
|
Thank you and very much. My bash and sed skills are very low. However I
tried to combine your idea with Bernhard's and now got the following script:

#!/bin/bash
## Packages to add
## "java-confid -d for dependencies"

PACKAGES=axis-1,wsdl4j

for pkg in $(java-config -p ${PACKAGES} | perl -pi -e 's/[:*]/$1\n/g')
~  do
~    echo "<classpathentry kind=\"lib\" path=\"$pkg\" />"
~  done
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Re: [gentoo-java] Java packages in eclipse build path

[Bernhard Frauendienst]

You will still need the deps on the classpath for running the program
though, so you need to integrate those too, somehow... no idea how the
Run configurations are stored in Eclipse, but those might be the right
place to add the entries.

Pascal Flöschel schrieb:
> jieryn@gmail.com schrieb:
> | On Jan 13, 2008 6:44 PM, Pascal Flöschel <pascal.floeschel@gmx.de> wrote:
> |> Is there a fast and simple way of using the package.env (e.g.
> |> /usr/share/axis-1/package.env ) to add libraries into the eclipse build
> |> path? Manually reading the package.env and adding every jar by hand
> |> takes quite some time.
> |
> | I do stuff like this quite a bit, java-config is simple but great tool
> | to learn. You can add the output of the following scriptlet to your
> | .classpath file inside your project.
> |
> | I use something like this for many purposes,
> |
> | #!/bin/bash
> |
> | for pkg in $(java-config --list-available-packages | sort | perl -pi
> | -e 's/^\[(.*?)].*/$1/g')
> |   do
> |     echo -n "<classpathentry kind=\"lib\"
> path=\"/usr/share/$pkg/lib/$pkg.jar\""
> |     echo    " sourcepath=\"/usr/share/$pkg/sources/$pkg-src.zip\"/>"
> |   done
> |
> | -jesse
> |
> Thank you and very much. My bash and sed skills are very low. However I
> tried to combine your idea with Bernhard's and now got the following
> script:
> 
> #!/bin/bash
> ## Packages to add
> ## "java-confid -d for dependencies"
> 
> PACKAGES=axis-1,wsdl4j
> 
> for pkg in $(java-config -p ${PACKAGES} | perl -pi -e 's/[:*]/$1\n/g')
> ~  do
> ~    echo "<classpathentry kind=\"lib\" path=\"$pkg\" />"
> ~  done
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Re: [gentoo-java] Java packages in eclipse build path

[Bernhard Frauendienst]

I personally use something like the following (in my lib dir):

#!/bin/bash
PACKAGES=commons-logging,log4j
echo -n $(java-config -dp ${PACKAGES}) | xargs -rd: ln -st .


This creates symlinks for all needed jars (and the jars they depend on,
remove java-config's -d parameter if you don't want that) in the current
directory, which you can simply add to the build path in Eclipse.

If someone has a better solution, I'm more than happy to hear it.
Perhaps someone could write a gentoo plugin for Eclipse? ;)

Bernhard

PS: the echo -n is needed because java-config terminates its output with
a newline, which would mess up the symlink to the last listed jar
(because xargs takes \n as a normal character when -d is set to
something different). I couldn't find a more elegant solution so far.

Pascal Flöschel schrieb:
> Hi
> 
> Is there a fast and simple way of using the package.env (e.g.
> /usr/share/axis-1/package.env ) to add libraries into the eclipse build
> path? Manually reading the package.env and adding every jar by hand
> takes quite some time.
> 
> Thanks+Bye
> Pascal
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Re: [gentoo-java] Java packages in eclipse build path

[Andrew Cowie]

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On Mon, 2008-01-14 at 01:08 +0100, Bernhard Frauendienst wrote:
> If someone has a better solution, I'm more than happy to hear it.
> Perhaps someone could write a gentoo plugin for Eclipse?

That's what we really need; Pascal's suggestion of using a script to
populate the .classpath file is a neat workaround, but really what would
make more sense is something that provided our packages (jars & sources,
etc) fully configured and available as User Libraries or whatever.

I cc'd Remy Suen; he's an Eclipse hacker who runs Gentoo. Maybe he can
help.

AfC
Sydney

P.S. A Java based solution for this would also go a long way towards
providing the infrastructure that would be needed by a maven plugin that
would allow us to use libraries already on the system (as opposed to
bringing in arbitrary binaries from untrusted sources) which has been
another pain point for quite some time now.

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