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

'''
Test handling of must_exist flag and global setting requiring the
file to exist in an SConscript call
'''

import os
import TestSCons

test = TestSCons.TestSCons()

# catch the exception if is raised, send it on as a warning
# this gives us traceability of the line responsible
SConstruct_path = test.workpath('SConstruct')
test.write(SConstruct_path, """\
import SCons
from SCons.Warnings import _warningOut
import sys

DefaultEnvironment(tools=[])
# 1. call should succeed with deprecation warning
try:
    SConscript('missing/SConscript')
except SCons.Errors.UserError as e:
    if _warningOut:
        _warningOut(e)
# 2. call should succeed with warning
try:
    SConscript('missing/SConscript')
except SCons.Errors.UserError as e:
    if _warningOut:
        _warningOut(e)
# 3. call should raise exception
try:
    SConscript('missing/SConscript', must_exist=True)
except SCons.Errors.UserError as e:
    if _warningOut:
        _warningOut(e)
# 4. call should succeed with warning
try:
    SConscript('missing/SConscript', must_exist=False)
except SCons.Errors.UserError as e:
    if _warningOut:
        _warningOut(e)
SCons.Script.set_missing_sconscript_error()
# 5. with system setting changed, should raise exception
try:
    SConscript('missing/SConscript')
except SCons.Errors.UserError as e:
    if _warningOut:
        _warningOut(e)
# 6. must_exist=False overrides system setting, should emit warning
try:
    SConscript('missing/SConscript', must_exist=False)
except SCons.Errors.UserError as e:
    if _warningOut:
        _warningOut(e)
""")

# we should see two exceptions as "Fatal" and
# and see four warnings, the first having the depr message
# need to build the path in the expected msg in an OS-agnostic way
missing = os.path.normpath('missing/SConscript')
warn1 = """
scons: warning: Calling missing SConscript without error is deprecated.
Transition by adding must_exist=0 to SConscript calls.
Missing SConscript '{}'
""".format(missing) + test.python_file_line(SConstruct_path, 8)

warn2 = """
scons: warning: Ignoring missing SConscript '{}'
""".format(missing) + test.python_file_line(SConstruct_path, 14)

err1 = """
scons: warning: Fatal: missing SConscript '{}'
""".format(missing) + test.python_file_line(SConstruct_path, 23)

warn3 = """
scons: warning: Ignoring missing SConscript '{}'
""".format(missing) + test.python_file_line(SConstruct_path, 26)

err2 = """
scons: warning: Fatal: missing SConscript '{}'
""".format(missing) + test.python_file_line(SConstruct_path, 36)

warn4 = """
scons: warning: Ignoring missing SConscript '{}'
""".format(missing) + test.python_file_line(SConstruct_path, 39)

expect_stderr = warn1 + warn2 + err1 + warn3 + err2 + warn4
test.run(arguments = ".", stderr = expect_stderr)
test.pass_test()

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