When synchronizing two directories on the same NTFS-formatted drive, unison
(with -perms 0o1777) fails to set execute permissions on new files. (It also
fails to detect changes in execute permissions and to set them on existing
files.)
I am running Cygwin 64-bit from setup version 2.873. Below is a script to test
this phenomenon for new files. It creates and later destroys a sandbox
directory under /tmp/.
Thank you all for your time and efforts on the Cygwin project. I have been a
happy user for over 10 years.
Alex Hankins
----------
#!/usr/bin/bash
# File: test-whether-unison-preserves-execute-permissions.bash
# Test whether unison (and the filesystem housing /tmp)
# synchronizes execute-bits on new, local files.
# Comment out to turn off script debugging:
#set -x
# We need to clean up after the test is done, so we use this flag to
# determine the exit status later.
#
success="false"
umask 700
# Try to create a temporary directory to store all test files.
#
tmpDir="/tmp/unison.$$"
if ! mkdir "${tmpDir}"; then
echo >&2 "${0}": cannot make temporary directory.
exit 1
fi
export UNISON="${tmpDir}/.unison" # Keep ~/.unison clean.
mkdir "${UNISON}"
mkdir "${tmpDir}/a" "${tmpDir}/b"
touch "${tmpDir}/a/foo"
chmod u+rwx,go= "${tmpDir}/a/foo"
echo "----- Before synchronization:"
ls -lRa "${tmpDir}"
echo
echo "----- Running unison."
unison -batch -debug all -log=false -perms 0o1777 "${tmpDir}/a" "${tmpDir}/b"
echo
echo "----- After synchronization:"
ls -lRa "${tmpDir}"
echo
if [ -x "${tmpDir}/b/foo" ]; then
success="true"
else
echo >&2 "${0}: test failed (for filesystem housing /tmp): execute bit not
preserved"
success="false"
fi
# Clean up the temporary directory we made.
rm -r "${tmpDir}"
if [ "${success}" = "false" ]; then
exit 1
fi
--
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