Re: The problem with resources

From:
=?ISO-8859-1?Q?Arne_Vajh=F8j?= <arne@vajhoej.dk>
Newsgroups:
comp.lang.java.programmer
Date:
Sun, 13 Feb 2011 21:10:26 -0500
Message-ID:
<4d588f0c$0$23756$14726298@news.sunsite.dk>
On 13-02-2011 21:06, Mike Schilling wrote:

"Arne Vajh?j" <arne@vajhoej.dk> wrote in message
news:4d587ade$0$23764$14726298@news.sunsite.dk...

On 13-02-2011 18:10, Mike Schilling wrote:

"markspace" <nospam@nowhere.com> wrote in message
news:ij9nnu$408$1@news.eternal-september.org...

On 2/12/2011 4:29 PM, Arne Vajh?j wrote:

On 12-02-2011 17:10, Roedy Green wrote:

Manually including them is easy. The problem is remembering to add
the
lines to your ant script, or people using library code you write
remembering to add them.


You want to create a tool for people that:
1) change source in projects
2) forget to update the build file appropriately


I took a look at the <jar> task for any. There doesn't seem to be a
way to do EXACTLY what Roedy wants, but there's a pretty easy
work-around. Just use two <jar> tasks, the second of which is an
update.

So if your .class files go to build/classes/, and your source file
directory is named src/, you can just use this pair of <jar> tasks:

<jar destfile="dist/Some.jar" basedir="./build/classes" />
<jar destfile="dist/Some.jar" basedir="./src"
excludes="**/*.java **/package.html"
update="true" />

The second task is an update. It excludes all *.java (source) files as
well as the older style package.html Javadoc tool file. It includes
everything else, which is the way most IDEs work and is very
convenient. Don't have to remember to add anything to your build file,
it just grabs everything that you've added to your source tree.

Caveat: lightly tested.


The solution I've used for years is to copy the resources to the classes
directory before calling <jar>. This doesn't cause any unnecessary work
because ant's <copy> task won't bother copying files that are identical
in the source and destination directories.


What does that do that multiple filesets in the jar element
does not?


As mentioned upthread, it allows running tests before building the jar
(without needing to specify the resources directory in the classpath).


How does the content of the jar file differ with the two jar elements
one with update and one jar element with two filesets??

Arne

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