[Scons-users] NoClean and node lists

[Dirk Bächle]

Hi Robert,

On 26.04.2014 01:05, robert zeigler wrote:

> I have been playing with "NoClean" in conjunction with some 

> multi-target build steps I have where I want to mark certain targets 

> within that step as NoClean, but the remaining targets can be safely 

> cleaned.

>

> It seems with NoClean it is an all-or-nothing proposition (using 

> scons-2.3.0)?

>

> For instance, consider this trivial build script:

>

> Command("baz", "", "echo hello > $TARGET")

> Command(["foo", "bar"], "baz", "cat baz > foo && echo hellofoo >> foo 

> && cat baz > bar && echo hellobar >> bar")

>

> [...]

>

>

> Am I missing something? Shouldn't I be able to specify a subset of 

> targets in a multi-target step as NoClean?

>


yes, you should. Apparently, SCons is a little confused over the way you 
define two dependencies at once in your Command builder. Please try to 
split them up:

Command("baz", "", "echo hello > $TARGET")
Command("foo", "baz", "cat baz > foo && echo hellofoo >> foo")
Command("bar", "baz", "cat baz > bar && echo hellobar >> bar")

then the NoClean() method works fine for all the three targets on my 
side. I hope this workaround helps you further already. If I find the 
time, I'll dig into the code and try to find out why your approach 
doesn't work too.

Best regards,

Dirk