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

"""
Test that the --debug=dtree option correctly prints just the explicit
dependencies (sources or Depends()) of a target.
"""

import TestSCons
import sys
import string
import re
import time

test = TestSCons.TestSCons()

test.write('SConstruct', """
env = Environment(OBJSUFFIX = '.ooo', PROGSUFFIX = '.xxx')
env.Program('foo', Split('foo.c bar.c'))
""")

test.write('foo.c', r"""
#include "foo.h"
int main(int argc, char *argv[])
{
        argv[argc++] = "--";
        printf("f1.c\n");
        exit (0);
}
""")

test.write('bar.c', """
#include "bar.h"
""")

test.write('foo.h', """
#ifndef FOO_H
#define FOO_H
#include "bar.h"
#endif
""")

test.write('bar.h', """
#ifndef BAR_H
#define BAR_H
#include "foo.h"
#endif
""")

dtree1 = """
+-foo.xxx
  +-foo.ooo
  +-bar.ooo
"""

test.run(arguments = "--debug=dtree foo.xxx")
test.fail_test(string.find(test.stdout(), dtree1) == -1)

dtree2 = """
+-.
  +-bar.ooo
  +-foo.ooo
  +-foo.xxx
    +-foo.ooo
    +-bar.ooo
"""
test.run(arguments = "--debug=dtree .")
test.fail_test(string.find(test.stdout(), dtree2) == -1)

# Make sure we print the debug stuff even if there's a build failure.
test.write('bar.h', """
#ifndef BAR_H
#define BAR_H
#include "foo.h"
#endif
THIS SHOULD CAUSE A BUILD FAILURE
""")

test.run(arguments = "--debug=dtree foo.xxx",
         status = 2,
         stderr = None)
test.fail_test(string.find(test.stdout(), dtree1) == -1)

test.pass_test()