[Scons-users] Command fails if action is simply $SOURCE

[Gary Oberbrunner]

I seem to remember this is an old bug.  Even adding a space before or after
should fix it.  Can't look it up right now but if you find it, feel free to
add your testcase.


On Thu, Feb 28, 2013 at 2:11 PM, Carnë Draug <carandraug+dev at gmail.com>wrote:


> On 28 February 2013 18:56, William Deegan <bill at baddogconsulting.com>

> wrote:

> > On Feb 28, 2013, at 10:15 AM, Carnë Draug <carandraug+dev at gmail.com>

> wrote:

> >> I'm trying to set a bunch of scripts as commands which are then

> >> grouped as a single target with Alias. I'm doing something like this

> >>

> >> analysis1 = env.Command(target = "result1", source = "script1.pl",

> >> action = "$SOURCE")

> >> analysis2 = env.Command(target = "result2", source = "script2.pl",

> >> action = "$SOURCE")

> >> analysis3 = env.Command(target = "result3", source = "script3.pl",

> >> action = "$SOURCE")

> >>

> >> env.Alias("analysis", [analysis1, analysis2, analysis3])

> >>

> >>

> >> However, this fails. All I get is:

> >>

> >> $scons analysis

> >> scons: Reading SConscript files ...

> >> scons: done reading SConscript files.

> >> scons: Building targets ...

> >> scons: done building targets.

> >>

> >> I can make SCons run the scripts if I set the action to "./$SOURCE",

> >> "perl $SOURCE", "$SOURCE --" or anything like that. The files should

> >> have the correct permissions (744). Even if I set $SOURCE to a path, I

> >> get the same problem so shouldn't be a matter of adding anything to

> >> the search path.

> >>

> >> Is this a bug in SCons or am I doing something wrong? And is there a

> >> better way to do this?

> >

> > Try: "scons --debug=explain analysis"

>

> This shows me that SCons recognizes the target as something to build

> but then does nothing about it:

>

> $ scons --debug=explain analysis

> scons: Reading SConscript files ...

> scons: done reading SConscript files.

> scons: Building targets ...

> scons: building `result1' because it doesn't exist

> scons: building `result2' because it doesn't exist

> scons: building `result3' because it doesn't exist

> scons: done building targets.

>

> Nothing is done with the scripts. Just for test, I made the scripts to

> just print something, or give an error but nothing happens ever.

>

> > Also can you paste the output from:

> > scons --tree=prune analysis

>

> scons: Reading SConscript files ...

> scons: done reading SConscript files.

> scons: Building targets ...

> +-analysis

>   +-result1

>   | +-scripts/script1.pl

>   +-result2

>   | +-scripts/script2.pl

>   +-result3

>     +-scripts/script3.pl

> scons: done building targets.

>

> I have attached a tarball with the example, for ease of replication.

>

> I have tried to pass the path for the scripts with os.path.join() and

> os.path.abspath() but none worked.

>

> Carnë

>

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>



-- 
Gary
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