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Posted to user@ant.apache.org by Christopher Elkins <ce...@scardini.com> on 2000/10/20 22:33:06 UTC
Re: echo message does not translate properties
> I would like to echo back the value of properties to a user but the
> following
> <property name="aprop" value="abc" />
> <echo message="aprop = ${aprop}" />
>
> results in
>
> aprop = ${aprop}
>
>
> when I would like it to result in
>
> aprop = abc
>
Was this ever addressed? I don't see anything in the archives.
--
Christopher Elkins
RE: echo message does not translate properties
Posted by Wes Moulder <wm...@axyssolutions.com>.
In a non-convoluted way? No.
In a slightly less than obvious way? Try:
<target name="check_for_optional_packages">
<available property="jsdk2.2.present"
classname="javax.servlet.jsp.PageContext" value="false"/>
</target>
<target name="env" depends="check_for_optional_packages">
<echo message="jsdk2.2 = ${jsdk2.2.present}"
if="${jsdk2.2.present}"/>
<echo message="jsdk2.2 = false" unless="${jsdk2.2.present}" />
</target>
I believe this will work. Like I said, a bit kludgey, but if you don't
mind a duct tape and bailing wire sort of approach, it works.
--Wes
> -----Original Message-----
> From: Christopher Elkins [mailto:celkins@scardini.com]
> Sent: Friday, October 20, 2000 4:29 PM
> To: ant-user@jakarta.apache.org
> Subject: Re: echo message does not translate properties
>
>
>
> > Yes, the available tag only sets the property if the file/class is
> > available. This is a good thing since the if/unless does
> the same check,
> > not to check and see if they meet any condition.
> >
> Thanks. I just re-read the docs and now realize I completely
> misunderstood the
> purpose of that value attribute.
>
> Here's what I'd like to do: if a specific class is present,
> print "true"; if
> it's not, print "false". If I use the value tag properly, I
> can get "true" when
> it's present. However, when it's not, I just get the property
> identifier; I'd
> like to get "false". Is this possible in a non-convoluted way?
>
Re: echo message does not translate properties
Posted by Christopher Elkins <ce...@scardini.com>.
> Yes, the available tag only sets the property if the file/class is
> available. This is a good thing since the if/unless does the same check,
> not to check and see if they meet any condition.
>
Thanks. I just re-read the docs and now realize I completely misunderstood the
purpose of that value attribute.
Here's what I'd like to do: if a specific class is present, print "true"; if
it's not, print "false". If I use the value tag properly, I can get "true" when
it's present. However, when it's not, I just get the property identifier; I'd
like to get "false". Is this possible in a non-convoluted way?
> --Wes
>
--
Christopher Elkins
> > -----Original Message-----
> > From: Christopher Elkins [mailto:celkins@scardini.com]
> > Sent: Friday, October 20, 2000 4:21 PM
> > To: ant-user@jakarta.apache.org
> > Subject: Re: echo message does not translate properties
> >
> >
> >
> > Sorry, my bad. I should have elaborated, especially
> > considering that my
> > situation isn't exactly the same as the one in the original message.
> >
> > Ant version = 1.2rc2
> >
> > Build file
> > ----------
> > <target name="check_for_optional_packages">
> > <available property="jsdk2.2.present"
> > classname="javax.servlet.jsp.PageContext" value="false"/>
> > </target>
> >
> > <target name="env" depends="check_for_optional_packages">
> > <echo message="jsdk2.2 = ${jsdk2.2.present}"/>
> > </target>
> >
> > Output
> > ------
> > C:\Projects\jakarta\turbine\build>build-turbine.bat env
> > Buildfile: build-turbine.xml
> >
> > check_for_optional_packages:
> >
> > env:
> > jsdk2.2 = ${jsdk2.2.present}
> >
> > BUILD SUCCESSFUL
> >
> > Total time: 1 second
> >
> >
> > Perhaps I'm misunderstanding the usage of the value attribute
> > in the available
> > tag, but in this scenario I'd expect to see:
> > jsdk2.2 = false
> >
> > Am I missing something?
> >
> > --
> > Christopher Elkins
> >
> >
>
>
RE: echo message does not translate properties
Posted by Wes Moulder <wm...@axyssolutions.com>.
Yes, the available tag only sets the property if the file/class is
available. This is a good thing since the if/unless does the same check,
not to check and see if they meet any condition.
--Wes
> -----Original Message-----
> From: Christopher Elkins [mailto:celkins@scardini.com]
> Sent: Friday, October 20, 2000 4:21 PM
> To: ant-user@jakarta.apache.org
> Subject: Re: echo message does not translate properties
>
>
>
> Sorry, my bad. I should have elaborated, especially
> considering that my
> situation isn't exactly the same as the one in the original message.
>
> Ant version = 1.2rc2
>
> Build file
> ----------
> <target name="check_for_optional_packages">
> <available property="jsdk2.2.present"
> classname="javax.servlet.jsp.PageContext" value="false"/>
> </target>
>
> <target name="env" depends="check_for_optional_packages">
> <echo message="jsdk2.2 = ${jsdk2.2.present}"/>
> </target>
>
> Output
> ------
> C:\Projects\jakarta\turbine\build>build-turbine.bat env
> Buildfile: build-turbine.xml
>
> check_for_optional_packages:
>
> env:
> jsdk2.2 = ${jsdk2.2.present}
>
> BUILD SUCCESSFUL
>
> Total time: 1 second
>
>
> Perhaps I'm misunderstanding the usage of the value attribute
> in the available
> tag, but in this scenario I'd expect to see:
> jsdk2.2 = false
>
> Am I missing something?
>
> --
> Christopher Elkins
>
>
Re: echo message does not translate properties
Posted by Christopher Elkins <ce...@scardini.com>.
> In what context and with what version of ant do you see this behavior? Using
> 1.2rc1 I am able to echo the properties defined within a target.
>
Sorry, my bad. I should have elaborated, especially considering that my
situation isn't exactly the same as the one in the original message.
Ant version = 1.2rc2
Build file
----------
<target name="check_for_optional_packages">
<available property="jsdk2.2.present"
classname="javax.servlet.jsp.PageContext" value="false"/>
</target>
<target name="env" depends="check_for_optional_packages">
<echo message="jsdk2.2 = ${jsdk2.2.present}"/>
</target>
Output
------
C:\Projects\jakarta\turbine\build>build-turbine.bat env
Buildfile: build-turbine.xml
check_for_optional_packages:
env:
jsdk2.2 = ${jsdk2.2.present}
BUILD SUCCESSFUL
Total time: 1 second
Perhaps I'm misunderstanding the usage of the value attribute in the available
tag, but in this scenario I'd expect to see:
jsdk2.2 = false
Am I missing something?
--
Christopher Elkins
Re: echo message does not translate properties
Posted by Scott M Stark <Sc...@displayscape.com>.
In what context and with what version of ant do you see this behavior? Using
1.2rc1 I am able to echo the properties defined within a target.
bash-2.04$ ant -version
Ant version 1.2rc1 compiled on October 14 2000
bash-2.04$ cat tst.xml
<?xml version="1.0" encoding="UTF-8"?>
<project name="JavaSerializationTests" default="run" basedir="./">
<target name="run">
<property name="version" value="V0" />
<echo message="in run, version = ${version}" />
<antcall target="runV">
<param name="version" value="${version}" />
</antcall>
</target>
<target name="runV">
<echo message="in runV, version = ${version}" />
</target>
</project>
bash-2.04$ ant -buildfile tst.xml
Buildfile: ..\tst.xml
run:
in run, version = V0
runV:
in runV, version = V0
BUILD SUCCESSFUL
Total time: 0 seconds
----- Original Message -----
From: "Christopher Elkins" <ce...@scardini.com>
To: <an...@jakarta.apache.org>
Sent: Friday, October 20, 2000 1:33 PM
Subject: Re: echo message does not translate properties
> > I would like to echo back the value of properties to a user but the
> > following
> > <property name="aprop" value="abc" />
> > <echo message="aprop = ${aprop}" />
> >
> > results in
> >
> > aprop = ${aprop}
> >
> >
> > when I would like it to result in
> >
> > aprop = abc
> >
>
> Was this ever addressed? I don't see anything in the archives.
>
> --
> Christopher Elkins
>
>