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SCons / test / Scanner / multi-env.py

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#!/usr/bin/env python
#
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__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"


"""
Verifies that using the same source file in different environments
will get the proper scanner for the environment being used.
"""

import TestSCons

_python_ = TestSCons._python_

test = TestSCons.TestSCons()


test.write('SConstruct', """
import re

include_re = re.compile(r'^include\s+(\S+)$', re.M)
input_re = re.compile(r'^input\s+(\S+)$', re.M)

scan1 = Scanner(name = 'Include',
                function = lambda N,E,P,A: A.findall(N.get_contents()),
                argument = include_re,
                skeys = ['.inp'])

scan2 = Scanner(name = 'Input',
                function = lambda N,E,P,A: A.findall(N.get_contents()),
                argument = input_re,
                skeys = ['.inp'])

env1 = Environment()
env2 = Environment()

env1.Append(SCANNERS=scan1)
env2.Append(SCANNERS=scan2)

env1.Command('frog.1', 'frog.inp', r'%(_python_)s do_incl.py $TARGET $SOURCES')
env2.Command('frog.2', 'frog.inp', r'%(_python_)s do_inp.py $TARGET $SOURCES')

""" % locals())

process = r"""
import sys

def process(infp, outfp):
    prefix = '%(command)s '
    l = len(prefix)
    for line in infp.readlines():
        if line[:l] == prefix:
            process(open(line[l:-1], 'rb'), outfp)
        else:
            outfp.write(line)

process(open(sys.argv[2], 'rb'),
        open(sys.argv[1], 'wb'))
sys.exit(0)
"""

test.write('do_incl.py', process % { 'command' : 'include' })
test.write('do_inp.py', process % { 'command' : 'input' })

test.write('frog.inp', """\
include sound1
input sound2
""")

test.write('sound1', 'croak\n')
test.write('sound2', 'ribbet\n')

expect = test.wrap_stdout("""\
%(_python_)s do_incl.py frog.1 frog.inp
%(_python_)s do_inp.py frog.2 frog.inp
""" % locals())

test.run(arguments='.', stdout=expect)

test.must_match('frog.1', 'croak\ninput sound2\n')
test.must_match('frog.2', 'include sound1\nribbet\n')

test.write('sound2', 'rudeep\n')

expect = test.wrap_stdout("""\
%(_python_)s do_inp.py frog.2 frog.inp
""" % locals())

test.run(arguments='.', stdout=expect)

test.must_match('frog.1', 'croak\ninput sound2\n')
test.must_match('frog.2', 'include sound1\nrudeep\n')

test.pass_test()