Re: dependency scanner
Mike Schilling wrote:
Arne VajhHj wrote:
Mike Schilling wrote:
Arne VajhHj wrote:
Aryeh M. Friedman wrote:
I am looking for a class/program that will scan a .java file for
imports (recursively) to discover which ones need to be rebuilt.
This is close to GNU's makedepend or cook's c_incl.
You don't use that type of tools with Java.
The javac compiler itself compiles missing parts.
And the ant tool (which you should use for build) checks what to
rebuild based on dates similar to ant.
Just use ant and javac and forget about dependencies.
And when that's not good enough (like when superclass change,
require
subclasses to recompile too), curse a bit, delete all the .class
files, and rebuild the whole thing.
Many people make a clean target in build.xml !
I always do, for several reasons; the above is one of them. My
comment was a complaint about the fact that the <javac> task is
*almost* good enough to handle dependencies, but not quite. When I,
for instance, get a batch of newer source code from the SCM system, I
always do a clean build, since there's no way to be sure it isn't
necessary, and I don't want to waste time with spurious problems from
not building clean when it was required.
And usually Java builds are reasonable fast even when building from
scratch.
Arne
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