#!/bin/sh
# Test some of ls's sorting options.

: ${LS=ls}
: ${TOUCH=touch}
test=time-1

if test "$VERBOSE" = yes; then
  set -x
  $LS --version
fi

tmp=t-ls.$$

# We're going to run LS from a subdir.
# Prepend ../ if $LS is a relative file name.
case $LS in
  /*) ;;
  */*) LS=../$LS
esac

case $TOUCH in
  /*) ;;
  */*) TOUCH=../$TOUCH
esac

test_failure=0
mkdir $tmp || test_failure=1
cd $tmp || test_failure=1

t1='1998-01-15 21:00'
t2='1998-01-15 22:00'
t3='1998-01-15 23:00'

u1='1998-01-14 11:00'
u2='1998-01-14 12:00'
u3='1998-01-14 13:00'

$TOUCH -m -d "$t3" a || test_failure=1
$TOUCH -m -d "$t2" b || test_failure=1
$TOUCH -m -d "$t1" c || test_failure=1

$TOUCH -a -d "$u3" c || test_failure=1
$TOUCH -a -d "$u2" b || test_failure=1
# Make sure A has ctime at least 1 second more recent than C's.
sleep 2
$TOUCH -a -d "$u1" a || test_failure=1

fail=0

# A has ctime more recent than C.
set `$LS -c a c`
test "$*" = 'a c' || fail=1

# Sleep so long in an attempt to avoid spurious failures
# due to NFS caching and/or clock skew.
sleep 2

# Create a link, updating c's ctime.
ln c d || test_failure=1

if test $test_failure = 1; then
  echo 'failure in testing framework'
  exit 1
fi

set `$LS -u a b c`
test "$*" = 'c b a' && : || fail=1

set `$LS -t a b c`
test "$*" = 'a b c' && : || fail=1

# Now, C should have ctime more recent than A.
set `$LS -c a c`
if test "$*" = 'c a'; then
  : ok
else
  # In spite of documentation, (e.g., stat(2)), neither link nor chmod
  # update a file's st_ctime on SunOS4.1.4.
  cat >&2 << \EOF
failed ls ctime test -- this is expected at least for SunOS4.1.4
and for tmpfs file systems on Solaris 5.5.1.
EOF
  fail=1
fi

cd ..
rm -rf $tmp

exit $fail