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

"""
Test that $M4 and $M4FLAGS work with repositories.
"""

import os

import TestSCons

_python_ = TestSCons._python_

test = TestSCons.TestSCons()

# TODO: figure out how to write the coverage data to the locked folder or maybe somewhere else
if test.coverage_run():
    test.skip_test("this test locks the folder for writing meaning coverage data can not be written; skipping test.")

test.subdir('work', 'repository', ['repository', 'src'])

test.write('mym4.py', """
import sys
contents = sys.stdin.read()
sys.stdout.write(contents.replace('M4', 'mym4.py'))
sys.exit(0)
""")

mym4_py = test.workpath('mym4.py')



opts = "-Y " + test.workpath('repository')

test.write(['repository', 'SConstruct'], """\
env = Environment(M4 = r'%(_python_)s %(mym4_py)s', tools=['default', 'm4'])
env.M4(target = 'aaa.x', source = 'aaa.x.m4')
SConscript('src/SConscript', "env", variant_dir="build")
""" % locals())

test.write(['repository', 'aaa.x.m4'], """\
line 1
M4
line 3
""")

test.write(['repository', 'src', 'SConscript'], """
Import("env")
env.M4('bbb.y', 'bbb.y.m4')
""")

test.write(['repository', 'src', 'bbb.y.m4'], """\
line 1 M4
line 2
line 3 M4
""")

#
# Make the repository non-writable,
# so we'll detect if we try to write into it accidentally.
test.writable('repository', 0)

#
test.run(chdir = 'work', options = opts, arguments = ".")

expect_aaa_x = """\
line 1
mym4.py
line 3
"""

expect_bbb_y = """\
line 1 mym4.py
line 2
line 3 mym4.py
"""

test.fail_test(test.read(test.workpath('work', 'aaa.x'), 'r') != expect_aaa_x)
test.fail_test(test.read(test.workpath('work', 'build', 'bbb.y'), 'r') != expect_bbb_y)

#
test.pass_test()

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