Improved the trailing comment.

[rsync/rsync.git] / testsuite / duplicates.test

#! /bin/sh

# Copyright (C) 2002 by Martin Pool <mbp@samba.org>

# This program is distributable under the terms of the GNU GPL see
# COPYING).

# Test rsync handling of duplicate filenames.  

# It's quite possible that the user might specify the same source file
# more than once on the command line, perhaps through shell variables
# or wildcard expansions.  It might cause problems for rsync if the
# same name occurred more than once in the file list, because we might
# be trying to update the first copy and generate checksums for the
# second copy at the same time.  See clean_flist() for the implementation.

# We don't need to worry about hardlinks or symlinks.  Because we
# always rename-and-replace the new copy, they can't affect us.

# This test is not great, because it is a timing-dependent bug.

. $srcdir/testsuite/rsync.fns

set -x

# Build some hardlinks

fromdir="$scratchdir/from"
todir="$scratchdir/to"

mkdir "$fromdir"
name1="$fromdir/name1"
name2="$fromdir/name2"
echo "This is the file" > "$name1"
ln -s "$name1" "$name2" || fail "can't create symlink"

outfile="$scratchdir/rsync.out"

checkit "$RSYNC -avv \"$fromdir/\" \"$fromdir/\" \"$fromdir/\" \"$fromdir/\" \"$fromdir/\" \"$fromdir/\" \"$fromdir/\" \"$fromdir/\" \"$fromdir/\" \"$fromdir/\" \"$todir/\"" "$fromdir" "$todir" \
    | tee "$outfile"

# Make sure each file was only copied once...
if [ `grep -c '^name1$' "$outfile"` != 1 ]
then
    test_fail "name1 was not copied exactly once"
fi
if [ `grep -c '^name2 -> ' "$outfile"` != 1 ]
then
    test_fail "name2 was not copied exactly once"
fi

# The script would have aborted on error, so getting here means we've won.
exit 0