#!/usr/bin/env python
#
# MIT License
#
# Copyright The SCons Foundation
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"""
Verify that when an option is specified with nargs > 1,
SCons consumes those correctly into the args.
"""

import TestSCons

test = TestSCons.TestSCons()

# First, test an option with nargs=2 and no others:
test.write(
    'SConstruct',
    """\
env = Environment()
AddOption('--extras',
          nargs=2,
          dest='extras',
          action='store',
          type='string',
          metavar='FILE1 FILE2',
          default=(),
          help='two extra files to install')
print(str(GetOption('extras')))
""",
)

# no args
test.run('-Q -q .', stdout="()\n")
# one arg, should fail
test.run(
    '-Q -q . --extras A',
    status=2,
    stderr="""\
usage: scons [OPTIONS] [VARIABLES] [TARGETS]

SCons Error: --extras option requires 2 arguments
""",
)
# two args
test.run('-Q -q . --extras A B', status=1, stdout="('A', 'B')\n")
# -- means the rest are not processed as args
test.run('-Q -q . -- --extras A B', status=1, stdout="()\n")

# Now test what has been a bug: another option is
# also defined, this impacts the collection of args for the nargs>1 opt
test.write(
    'SConstruct',
    """\
env = Environment()
AddOption(
    '--prefix',
    nargs=1,
    dest='prefix',
    action='store',
    type='string',
    metavar='DIR',
    help='installation prefix',
)
AddOption(
    '--extras',
    nargs=2,
    dest='extras',
    action='store',
    type='string',
    metavar='FILE1 FILE2',
    default=(),
    help='two extra files to install',
)
print(str(GetOption('prefix')))
print(str(GetOption('extras')))
""",
)

# no options
test.run('-Q -q .', stdout="None\n()\n")
# one single-arg option
test.run('-Q -q . --prefix=/home/foo', stdout="/home/foo\n()\n")
# one two-arg option
test.run('-Q -q . --extras A B', status=1, stdout="None\n('A', 'B')\n")
# single-arg option followed by two-arg option
test.run(
    '-Q -q . --prefix=/home/foo --extras A B',
    status=1,
    stdout="/home/foo\n('A', 'B')\n",
)
# two-arg option followed by single-arg option
test.run(
    '-Q -q . --extras A B --prefix=/home/foo',
    status=1,
    stdout="/home/foo\n('A', 'B')\n",
)

test.pass_test()

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