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Posted to user@ant.apache.org by ritchie <ga...@baml.com> on 2010/11/30 20:04:17 UTC
Set a default value to property.
My ant script takes a value for a property at runtime(-Denv=xxx), if the
argument is not passed i want the value to be set as a default arbitary
value. How to accomplish this?
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Re: Set a default value to property.
Posted by David Weintraub <qa...@gmail.com>.
On Tue, Nov 30, 2010 at 2:04 PM, ritchie <ga...@baml.com> wrote:
>
> My ant script takes a value for a property at runtime(-Denv=xxx), if the
> argument is not passed i want the value to be set as a default arbitary
> value. How to accomplish this?
What do you mean "arbitrary" value? Do you mean some value that you
chose, or it should chose some value on its own, either from a list or
at random?
If you simply want a default property, just set a property in your build.xml.
There's a hierarchy of where property values are set. If you include a
properties file, the values there override whatever values you set in
the build.xml itself, and values from the command line overrided
values set in both the build.xml and property files.
I do this all the time:
<!-- Will be set if user didn't specify -Denv=xxx from the command line -->
<property name="env" value="some_value"/>
--
David Weintraub
qazwart@gmail.com
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Re: Set a default value to property.
Posted by Alexander Enrique Urieles Nieto <ae...@gmail.com>.
What may it be wrong about simply using:
<project name="Foo" default="foo" basedir=".">
<property name="bar" value="default"/>
<target name="foo" description="foo">
<echo message="${bar}" />
</target>
</project>
Since properties are immutable and if it was set in the command line
call it won't change?
Best regards,
Alexander.
On Tue, Nov 30, 2010 at 8:20 PM, Scot P. Floess <sf...@nc.rr.com> wrote:
> Clearly my snippet is wrong:
>
> <macrodef name="default">
> <attribute name="property"/>
> <attribute name="default"/>
> <attribute name="description" default=""/>
>
> <sequential>
> <condition property="@{property}" value="@{default}">
> <not>
> <isset property="@{property}"/>
> </not>
> </condition>
> </sequential>
> </macrodef>
>
> ----- Call to <isset> was using the wrong attribute
>
> On Tue, 30 Nov 2010, Scot P. Floess wrote:
>
>>
>> Here is something I like to use... I macrodef'd it out so I can call it
>> for many properties that require default values...
>>
>> <macrodef name="default">
>> <attribute name="property"/>
>> <attribute name="default"/>
>> <attribute name="description" default=""/>
>>
>> <sequential>
>> <condition property="@{property}" value="@{default}">
>> <not>
>> <isset property="@{name}"/>
>> </not>
>> </condition>
>> </sequential>
>> </macrodef>
>>
>> This works with stock Ant (meaning you don't need Ant-contrib or any third
>> party libraries)...
>>
>> To use:
>>
>> <default property="SomeProperty" default="Some Default Value"/>
>>
>>
>>
>> On Tue, 30 Nov 2010, ritchie wrote:
>>
>>>
>>> My ant script takes a value for a property at runtime(-Denv=xxx), if the
>>> argument is not passed i want the value to be set as a default arbitary
>>> value. How to accomplish this?
>>>
>>
>>
>
> --
> Scot P. Floess
>
>
> RHCT (Certificate Number 605010084735240)
>
> Chief Architect FlossWare http://sourceforge.net/projects/flossware
> http://flossware.sourceforge.net
> https://github.com/organizations/FlossWare
>
> Chief Architect JPlate http://sourceforge.net/projects/jplate
> Chief Architect JavaPIM http://sourceforge.net/projects/javapim
> Chief Architect Keros http://sourceforge.net/projects/keros
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
> For additional commands, e-mail: user-help@ant.apache.org
>
>
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Re: Set a default value to property.
Posted by "Scot P. Floess" <sf...@nc.rr.com>.
Clearly my snippet is wrong:
<macrodef name="default">
<attribute name="property"/>
<attribute name="default"/>
<attribute name="description" default=""/>
<sequential>
<condition property="@{property}" value="@{default}">
<not>
<isset property="@{property}"/>
</not>
</condition>
</sequential>
</macrodef>
----- Call to <isset> was using the wrong attribute
On Tue, 30 Nov 2010, Scot P. Floess wrote:
>
> Here is something I like to use... I macrodef'd it out so I can call it for
> many properties that require default values...
>
> <macrodef name="default">
> <attribute name="property"/>
> <attribute name="default"/>
> <attribute name="description" default=""/>
>
> <sequential>
> <condition property="@{property}" value="@{default}">
> <not>
> <isset property="@{name}"/>
> </not>
> </condition>
> </sequential>
> </macrodef>
>
> This works with stock Ant (meaning you don't need Ant-contrib or any third
> party libraries)...
>
> To use:
>
> <default property="SomeProperty" default="Some Default Value"/>
>
>
>
> On Tue, 30 Nov 2010, ritchie wrote:
>
>>
>> My ant script takes a value for a property at runtime(-Denv=xxx), if the
>> argument is not passed i want the value to be set as a default arbitary
>> value. How to accomplish this?
>>
>
>
--
Scot P. Floess
RHCT (Certificate Number 605010084735240)
Chief Architect FlossWare http://sourceforge.net/projects/flossware
http://flossware.sourceforge.net
https://github.com/organizations/FlossWare
Chief Architect JPlate http://sourceforge.net/projects/jplate
Chief Architect JavaPIM http://sourceforge.net/projects/javapim
Chief Architect Keros http://sourceforge.net/projects/keros
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Re: Set a default value to property.
Posted by ritchie <ga...@baml.com>.
Thanks all for your replies, i tried some thing like this and it worked.
<property name = "version" value="23"/>
...
..
<replacefilter token="${XYZ}" value="${version}"/>
and when i ran the command ant -Dversion=25 it worked. Actually my ant task
is replacing a regular expression with the version value. When i dont pass
the arguments -Dversion=xxx it sets the token value as 23.
--
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Re: Set a default value to property.
Posted by "Scot P. Floess" <sf...@nc.rr.com>.
Honestly, its quite possible I am remembering wrong...
I'm looking over some of my old code...it looks like I wanted to emit a
warning if overriding - its me...again ;)
On Tue, 30 Nov 2010, Niklas Matthies wrote:
> I don't think this (emitting a warning) was ever the case. Setting and
> overriding defaults this way is one of the basic techniques in Ant. It
> should probably be made more explicit in the manual.
>
> -- Niklas Matthies
>
>
> On Tue 2010-11-30 at 14:30h, Scot P. Floess wrote on user:
>>
>> Actually, nothing at all... I swear at one time I thought a warning was
>> emitted when doing that... It was at that time I started using the
>> enclosed macrodef... Perhaps I am just remembering wrong...
>>
>> On Tue, 30 Nov 2010, Niklas Matthies wrote:
>>
>>> How is this different from just
>>>
>>> <property name="SomeProperty" value="Some Default Value"/>
>>>
>>> ?
>>>
>>> -- Niklas Matthies
>>>
>>>
>>> On Tue 2010-11-30 at 14:11h, Scot P. Floess wrote on user:
>>>>
>>>> Here is something I like to use... I macrodef'd it out so I can call it
>>>> for many properties that require default values...
>>>>
>>>> <macrodef name="default">
>>>> <attribute name="property"/>
>>>> <attribute name="default"/>
>>>> <attribute name="description" default=""/>
>>>>
>>>> <sequential>
>>>> <condition property="@{property}" value="@{default}">
>>>> <not>
>>>> <isset property="@{name}"/>
>>>> </not>
>>>> </condition>
>>>> </sequential>
>>>> </macrodef>
>>>>
>>>> This works with stock Ant (meaning you don't need Ant-contrib or any
>>>> third party libraries)...
>>>>
>>>> To use:
>>>>
>>>> <default property="SomeProperty" default="Some Default Value"/>
>>>>
>>>>
>>>>
>>>> On Tue, 30 Nov 2010, ritchie wrote:
>>>>
>>>>>
>>>>> My ant script takes a value for a property at runtime(-Denv=xxx), if the
>>>>> argument is not passed i want the value to be set as a default arbitary
>>>>> value. How to accomplish this?
>>>>>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
> For additional commands, e-mail: user-help@ant.apache.org
>
>
--
Scot P. Floess
RHCT (Certificate Number 605010084735240)
Chief Architect FlossWare http://sourceforge.net/projects/flossware
http://flossware.sourceforge.net
https://github.com/organizations/FlossWare
Chief Architect JPlate http://sourceforge.net/projects/jplate
Chief Architect JavaPIM http://sourceforge.net/projects/javapim
Chief Architect Keros http://sourceforge.net/projects/keros
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Re: Set a default value to property.
Posted by Niklas Matthies <ml...@nmhq.net>.
I don't think this (emitting a warning) was ever the case. Setting and
overriding defaults this way is one of the basic techniques in Ant. It
should probably be made more explicit in the manual.
-- Niklas Matthies
On Tue 2010-11-30 at 14:30h, Scot P. Floess wrote on user:
>
> Actually, nothing at all... I swear at one time I thought a warning was
> emitted when doing that... It was at that time I started using the
> enclosed macrodef... Perhaps I am just remembering wrong...
>
> On Tue, 30 Nov 2010, Niklas Matthies wrote:
>
>> How is this different from just
>>
>> <property name="SomeProperty" value="Some Default Value"/>
>>
>> ?
>>
>> -- Niklas Matthies
>>
>>
>> On Tue 2010-11-30 at 14:11h, Scot P. Floess wrote on user:
>>>
>>> Here is something I like to use... I macrodef'd it out so I can call it
>>> for many properties that require default values...
>>>
>>> <macrodef name="default">
>>> <attribute name="property"/>
>>> <attribute name="default"/>
>>> <attribute name="description" default=""/>
>>>
>>> <sequential>
>>> <condition property="@{property}" value="@{default}">
>>> <not>
>>> <isset property="@{name}"/>
>>> </not>
>>> </condition>
>>> </sequential>
>>> </macrodef>
>>>
>>> This works with stock Ant (meaning you don't need Ant-contrib or any
>>> third party libraries)...
>>>
>>> To use:
>>>
>>> <default property="SomeProperty" default="Some Default Value"/>
>>>
>>>
>>>
>>> On Tue, 30 Nov 2010, ritchie wrote:
>>>
>>>>
>>>> My ant script takes a value for a property at runtime(-Denv=xxx), if the
>>>> argument is not passed i want the value to be set as a default arbitary
>>>> value. How to accomplish this?
>>>>
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Re: Set a default value to property.
Posted by "Scot P. Floess" <sf...@nc.rr.com>.
Actually, nothing at all... I swear at one time I thought a warning was
emitted when doing that... It was at that time I started using the
enclosed macrodef... Perhaps I am just remembering wrong...
On Tue, 30 Nov 2010, Niklas Matthies wrote:
> How is this different from just
>
> <property name="SomeProperty" value="Some Default Value"/>
>
> ?
>
> -- Niklas Matthies
>
>
> On Tue 2010-11-30 at 14:11h, Scot P. Floess wrote on user:
>>
>> Here is something I like to use... I macrodef'd it out so I can call it
>> for many properties that require default values...
>>
>> <macrodef name="default">
>> <attribute name="property"/>
>> <attribute name="default"/>
>> <attribute name="description" default=""/>
>>
>> <sequential>
>> <condition property="@{property}" value="@{default}">
>> <not>
>> <isset property="@{name}"/>
>> </not>
>> </condition>
>> </sequential>
>> </macrodef>
>>
>> This works with stock Ant (meaning you don't need Ant-contrib or any
>> third party libraries)...
>>
>> To use:
>>
>> <default property="SomeProperty" default="Some Default Value"/>
>>
>>
>>
>> On Tue, 30 Nov 2010, ritchie wrote:
>>
>>>
>>> My ant script takes a value for a property at runtime(-Denv=xxx), if the
>>> argument is not passed i want the value to be set as a default arbitary
>>> value. How to accomplish this?
>>>
>>
>> --
>> Scot P. Floess
>>
>>
>> RHCT (Certificate Number 605010084735240)
>>
>> Chief Architect FlossWare http://sourceforge.net/projects/flossware
>> http://flossware.sourceforge.net
>> https://github.com/organizations/FlossWare
>>
>> Chief Architect JPlate http://sourceforge.net/projects/jplate
>> Chief Architect JavaPIM http://sourceforge.net/projects/javapim
>> Chief Architect Keros http://sourceforge.net/projects/keros
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
>> For additional commands, e-mail: user-help@ant.apache.org
>>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
> For additional commands, e-mail: user-help@ant.apache.org
>
>
--
Scot P. Floess
RHCT (Certificate Number 605010084735240)
Chief Architect FlossWare http://sourceforge.net/projects/flossware
http://flossware.sourceforge.net
https://github.com/organizations/FlossWare
Chief Architect JPlate http://sourceforge.net/projects/jplate
Chief Architect JavaPIM http://sourceforge.net/projects/javapim
Chief Architect Keros http://sourceforge.net/projects/keros
---------------------------------------------------------------------
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Re: Set a default value to property.
Posted by Niklas Matthies <ml...@nmhq.net>.
How is this different from just
<property name="SomeProperty" value="Some Default Value"/>
?
-- Niklas Matthies
On Tue 2010-11-30 at 14:11h, Scot P. Floess wrote on user:
>
> Here is something I like to use... I macrodef'd it out so I can call it
> for many properties that require default values...
>
> <macrodef name="default">
> <attribute name="property"/>
> <attribute name="default"/>
> <attribute name="description" default=""/>
>
> <sequential>
> <condition property="@{property}" value="@{default}">
> <not>
> <isset property="@{name}"/>
> </not>
> </condition>
> </sequential>
> </macrodef>
>
> This works with stock Ant (meaning you don't need Ant-contrib or any
> third party libraries)...
>
> To use:
>
> <default property="SomeProperty" default="Some Default Value"/>
>
>
>
> On Tue, 30 Nov 2010, ritchie wrote:
>
>>
>> My ant script takes a value for a property at runtime(-Denv=xxx), if the
>> argument is not passed i want the value to be set as a default arbitary
>> value. How to accomplish this?
>>
>
> --
> Scot P. Floess
>
>
> RHCT (Certificate Number 605010084735240)
>
> Chief Architect FlossWare http://sourceforge.net/projects/flossware
> http://flossware.sourceforge.net
> https://github.com/organizations/FlossWare
>
> Chief Architect JPlate http://sourceforge.net/projects/jplate
> Chief Architect JavaPIM http://sourceforge.net/projects/javapim
> Chief Architect Keros http://sourceforge.net/projects/keros
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
> For additional commands, e-mail: user-help@ant.apache.org
>
---------------------------------------------------------------------
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Re: Set a default value to property.
Posted by "Scot P. Floess" <sf...@nc.rr.com>.
Here is something I like to use... I macrodef'd it out so I can call it
for many properties that require default values...
<macrodef name="default">
<attribute name="property"/>
<attribute name="default"/>
<attribute name="description" default=""/>
<sequential>
<condition property="@{property}" value="@{default}">
<not>
<isset property="@{name}"/>
</not>
</condition>
</sequential>
</macrodef>
This works with stock Ant (meaning you don't need Ant-contrib or any third
party libraries)...
To use:
<default property="SomeProperty" default="Some Default Value"/>
On Tue, 30 Nov 2010, ritchie wrote:
>
> My ant script takes a value for a property at runtime(-Denv=xxx), if the
> argument is not passed i want the value to be set as a default arbitary
> value. How to accomplish this?
>
--
Scot P. Floess
RHCT (Certificate Number 605010084735240)
Chief Architect FlossWare http://sourceforge.net/projects/flossware
http://flossware.sourceforge.net
https://github.com/organizations/FlossWare
Chief Architect JPlate http://sourceforge.net/projects/jplate
Chief Architect JavaPIM http://sourceforge.net/projects/javapim
Chief Architect Keros http://sourceforge.net/projects/keros
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