[Scons-users] Creation of an archive of source files with Node.all_children()

[Paul Grégoire]

Hello,

I try to create an archive of all the sources and dependancies of my
project. I have tested the FindSourceFiles() method, but this method
only reports the cpp files and not the associated headers files, so I
tried to implement it myself.

I use this code :

def get_dep(node):
    s = set()
    if node.has_builder():
        for i in node.all_children():
            s |= get_dep(i)
    else:
        s.add(node)
    return s

foo = Program(....

s = list(get_dep(foo[0]))
s.sort()

env.Tar('foo_sources', list(s))

This works well for a simple project, but not for my real project that
uses subdirectories and the Command method for building targets.

I have created a minimal project that I attach to this mail. It
contains a subdirectory named sub, a source file named main.cpp, an
header file named define.h which is created with a call to
Command('define.h', 'define.inc', 'cp $SOURCE $TARGET')

When I execute the scons command, I obtain the following message :

scons: Reading SConscript files ...
scons: done reading SConscript files.
scons: Building targets ...
tar -c -f sub/all_sources.tar sub/define.inc sub/main.cpp /usr/bin/g++ /bin/cp
tar: Removing leading `/' from member names
cp sub/define.inc sub/define.h
g++ -o sub/main.o -c sub/main.cpp
g++ -o sub/foo sub/main.o
scons: done building targets.
OSError: [Errno 2] No such file or directory: '.sconsign.dblite':
  File "/usr/local/lib/scons-2.3.4/SCons/Script/Main.py", line 1372:
    _exec_main(parser, values)
  File "/usr/local/lib/scons-2.3.4/SCons/Script/Main.py", line 1335:
    _main(parser)
  File "/usr/local/lib/scons-2.3.4/SCons/Script/Main.py", line 1099:
    nodes = _build_targets(fs, options, targets, target_top)
  File "/usr/local/lib/scons-2.3.4/SCons/Script/Main.py", line 1297:
    jobs.run(postfunc = jobs_postfunc)
  File "/usr/local/lib/scons-2.3.4/SCons/Job.py", line 113:
    postfunc()
  File "/usr/local/lib/scons-2.3.4/SCons/Script/Main.py", line 1294:
    SCons.SConsign.write()
  File "/usr/local/lib/scons-2.3.4/SCons/SConsign.py", line 109:
    syncmethod()
  File "/usr/local/lib/scons-2.3.4/SCons/dblite.py", line 127:
    self._os_unlink(self._file_name)
Exception OSError: OSError(2, 'No such file or directory') in <bound
method dblite.__del__ of <SCons.dblite.dblite object at 0x9439e6c>>
ignored


This only happens when I use a subdirectory AND the Command method to
create a target.

Does someone have an idea to solve my problem, or to explain me why I
obtain this message ?

Thank you very much,

Paul
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