argued against "if" logic as part of the defined part of Ant stating
that all logic really should go into tasks. Now that the object model
is clean enough, it becomes silly obvious how to do this without requiring
the addition of any if/unless attributes in the target definitions themselves.

The build target task takes a target name and, optionally a if property. If
the property is used and is "true", then the target is executed by calling
the appropriate functionality on the Project object.


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@268340 13f79535-47bb-0310-9956-ffa450edef68

ends use core... In order for a front end to run a build, it first
creates a ProjectBuilder, loads a Project from it, then can run a
build on that Project. What still needs a bit of looking after is
creating a project from scratch (such as a GUI might do) and then
executing it. Later.


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@268339 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@268317 13f79535-47bb-0310-9956-ffa450edef68