# generate proper file state to test working copy behavior

import sys

import os

# build the combination of possible states

combination = []

for base in [None, 'content1']:

    for parent in set([None, 'content2']) | set([base]):

        for wcc in set([None, 'content3']) | set([base, parent]):

                def statestring(content):

                    return content is None and 'missing' or content

                filename = "%s_%s_%s-%s" % (statestring(base),

                                            statestring(parent),

                                            statestring(wcc),

                combination.append((filename, base, parent, wcc))

# make sure we have stable output

combination.sort()

# retrieve the state we must generate

target = sys.argv[1]

# compute file content

content = []

for filename, base, parent, wcc in combination:

    if target == 'filelist':

        print filename

    elif target == 'base':

        content.append((filename, base))

    elif target == 'parent':

        content.append((filename, parent))

    elif target == 'wc':

        # Make sure there is content so the file gets written and can be

        # tracked. It will be deleted outside of this script.

        content.append((filename, wcc or 'TOBEDELETED'))

    else:

        print >> sys.stderr, "unknown target:", target

        sys.exit(1)

# write actual content

for filename, data in content:

    if data is not None:

        f = open(filename, 'w')

        f.write(data + '\n')

        f.close()

    elif os.path.exists(filename):

        os.remove(filename)