#!/usr/bin/env python
#
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# a copy of this software and associated documentation files (the
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# permit persons to whom the Software is furnished to do so, subject to
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__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"

import TestSCons

python = TestSCons.python

test = TestSCons.TestSCons()

# Execute a subsidiary SConscript just to make sure we can
# get at the SCanners keyword from there.

test.write('SConstruct', """
SConscript('SConscript')
""")

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

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

def kfile_scan(node, env, target, arg):
    contents = node.get_text_contents()
    exceptions = exception_re.findall(contents)
    if exceptions:
        raise Exception, "kfile_scan error:  %s" % exceptions[0]
    includes = include_re.findall(contents)
    return includes

kscan = Scanner(name = 'kfile',
                function = kfile_scan,
                argument = None,
                recursive = 1,
                skeys = ['.k'])

def process(outf, inf):
    for line in inf.readlines():
        if line[:8] == 'include ':
            file = line[8:-1]
            process(outf, open(file, 'rb'))
        else:
            outf.write(line)

def cat(env, source, target):
    target = str(target[0])
    source = map(str, source)

    outf = open(target, 'wb')
    for src in source:
        process(outf, open(src, 'rb'))
    outf.close()

env = Environment(BUILDERS={'Cat':Builder(action=cat)})
env.Append(SCANNERS = [kscan])

env.Cat('foo', 'foo.k')

bar_in = File('bar.in')
env.Cat('bar', bar_in)
bar_in.source_scanner = kscan
""")

test.write('foo.k', 
"""foo.k 1 line 1
include xxx
include yyy
foo.k 1 line 4
""")

test.write('bar.in', 
"""include yyy
bar.in 1 line 2
bar.in 1 line 3
include zzz
""")

test.write('xxx', "xxx 1\n")

test.write('yyy', "exception yyy 1\n")

test.write('zzz', "zzz 1\n")

test.run(arguments = '.',
         status = 2,
         stderr = """\
scons: *** [foo] Exception : kfile_scan error:  yyy 1
""")

test.pass_test()

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