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#!/bin/sh
# Test some of cp's options and how cp handles situations in
# which a naive implementation might overwrite the source file.

# FIXME: punt for now
CP=cp

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

LANGUAGE=C; export LANGUAGE
LANG=C; export LANG

VERSION_CONTROL=numbered; export VERSION_CONTROL

pwd=`pwd`
PATH=$pwd/../../src:$PATH

actual=actual-$$
expected=expected-$$
trap "cd $pwd; rm -rf $actual $expected dir" 0 1 2 3 15

exec 1> $actual

# FIXME: This should be bigger: like more than 8k
contents=XYZ

for args in 'foo symlink' 'symlink foo' 'foo foo' 'sl1 sl2' 'foo hardlink'; do
  for options in '' -d -f -df -b -bd -bf -bdf \
		 -l -dl -fl -dfl -bl -bdl -bfl -bdfl; do
    rm -rf dir
    mkdir dir
    cd dir
    echo $contents > foo
    case "$args" in *symlink*) ln -s foo symlink ;; esac
    case "$args" in *hardlink*) ln foo hardlink ;; esac
    case "$args" in *sl1*) ln -s foo sl1;; esac
    case "$args" in *sl2*) ln -s foo sl2;; esac
    (
      (
	$CP $options $args 2>.err
	echo $? $options

	# Normalize the program name in the error output,
	# and put brackets around the output.
	test -s .err && echo "[`sed 's/^[^:][^:]*:/cp:/' .err`]"
	# Strip off all but the file names.
	exclude=`echo " .err"|sed 's/ / --ignore=/g'`
	ls="`ls -lG $exclude . \
	    | sed \
	        -e '/^total /d' \
		-e 's/^..............................................//'`"
	echo "($ls)"
	# Make sure the original is unchanged and that
	# the destination is a copy.
	for f in $args; do
	  if test -f $f; then
	    case "`cat $f`" in
	      "$contents") ;;
	      *) echo cp FAILED;;
	    esac
	  else
	    echo symlink-loop
	  fi
	done
      ) | tr '\012' ' '
      echo
    ) | sed 's/  *$//'
    cd ..
  done
  echo
done

cat <<\EOF > $expected
1 [cp: `foo' and `symlink' are the same file] (foo symlink -> foo)
1 -d [cp: `foo' and `symlink' are the same file] (foo symlink -> foo)
1 -f [cp: `foo' and `symlink' are the same file] (foo symlink -> foo)
1 -df [cp: `foo' and `symlink' are the same file] (foo symlink -> foo)
0 -b (foo symlink symlink.~1~ -> foo)
0 -bd (foo symlink symlink.~1~ -> foo)
0 -bf (foo symlink symlink.~1~ -> foo)
0 -bdf (foo symlink symlink.~1~ -> foo)
0 -l (foo symlink -> foo)
0 -dl (foo symlink -> foo)
0 -fl (foo symlink -> foo)
0 -dfl (foo symlink -> foo)
0 -bl (foo symlink -> foo)
0 -bdl (foo symlink symlink.~1~ -> foo)
0 -bfl (foo symlink -> foo)
0 -bdfl (foo symlink symlink.~1~ -> foo)

1 [cp: `symlink' and `foo' are the same file] (foo symlink -> foo)
1 -d [cp: `symlink' and `foo' are the same file] (foo symlink -> foo)
1 -f [cp: `symlink' and `foo' are the same file] (foo symlink -> foo)
1 -df [cp: `symlink' and `foo' are the same file] (foo symlink -> foo)
1 -b [cp: `symlink' and `foo' are the same file] (foo symlink -> foo)
0 -bd (foo -> foo foo.~1~ symlink -> foo) symlink-loop symlink-loop
1 -bf [cp: `symlink' and `foo' are the same file] (foo symlink -> foo)
0 -bdf (foo -> foo foo.~1~ symlink -> foo) symlink-loop symlink-loop
0 -l (foo symlink -> foo)
0 -dl (foo symlink -> foo)
0 -fl (foo symlink -> foo)
0 -dfl (foo symlink -> foo)
0 -bl (foo symlink -> foo)
0 -bdl (foo -> foo foo.~1~ symlink -> foo) symlink-loop symlink-loop
0 -bfl (foo symlink -> foo)
0 -bdfl (foo -> foo foo.~1~ symlink -> foo) symlink-loop symlink-loop

1 [cp: `foo' and `foo' are the same file] (foo)
1 -d [cp: `foo' and `foo' are the same file] (foo)
1 -f [cp: `foo' and `foo' are the same file] (foo)
1 -df [cp: `foo' and `foo' are the same file] (foo)
1 -b [cp: `foo' and `foo' are the same file] (foo)
1 -bd [cp: `foo' and `foo' are the same file] (foo)
0 -bf (foo foo.~1~)
0 -bdf (foo foo.~1~)
0 -l (foo)
0 -dl (foo)
0 -fl (foo)
0 -dfl (foo)
0 -bl (foo)
0 -bdl (foo)
0 -bfl (foo foo.~1~)
0 -bdfl (foo foo.~1~)

1 [cp: `sl1' and `sl2' are the same file] (foo sl1 -> foo sl2 -> foo)
1 -d [cp: `sl1' and `sl2' are the same file] (foo sl1 -> foo sl2 -> foo)
1 -f [cp: `sl1' and `sl2' are the same file] (foo sl1 -> foo sl2 -> foo)
1 -df [cp: `sl1' and `sl2' are the same file] (foo sl1 -> foo sl2 -> foo)
0 -b (foo sl1 -> foo sl2 sl2.~1~ -> foo)
0 -bd (foo sl1 -> foo sl2 -> foo sl2.~1~ -> foo)
0 -bf (foo sl1 -> foo sl2 sl2.~1~ -> foo)
0 -bdf (foo sl1 -> foo sl2 -> foo sl2.~1~ -> foo)
0 -l (foo sl1 -> foo sl2 -> foo)
0 -dl (foo sl1 -> foo sl2 -> foo)
0 -fl (foo sl1 -> foo sl2 -> foo)
0 -dfl (foo sl1 -> foo sl2 -> foo)
0 -bl (foo sl1 -> foo sl2 -> foo)
0 -bdl (foo sl1 -> foo sl2 -> foo sl2.~1~ -> foo)
0 -bfl (foo sl1 -> foo sl2 -> foo)
0 -bdfl (foo sl1 -> foo sl2 -> foo sl2.~1~ -> foo)

1 [cp: `foo' and `hardlink' are the same file] (foo hardlink)
1 -d [cp: `foo' and `hardlink' are the same file] (foo hardlink)
1 -f [cp: `foo' and `hardlink' are the same file] (foo hardlink)
1 -df [cp: `foo' and `hardlink' are the same file] (foo hardlink)
0 -b (foo hardlink hardlink.~1~)
0 -bd (foo hardlink hardlink.~1~)
0 -bf (foo hardlink hardlink.~1~)
0 -bdf (foo hardlink hardlink.~1~)
0 -l (foo hardlink)
0 -dl (foo hardlink)
0 -fl (foo hardlink)
0 -dfl (foo hardlink)
0 -bl (foo hardlink)
0 -bdl (foo hardlink)
0 -bfl (foo hardlink)
0 -bdfl (foo hardlink)

EOF

cmp $expected $actual || diff -u $expected $actual 1>&2