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Diffstat (limited to 'tests/cp/same-file.sh')
| -rwxr-xr-x | tests/cp/same-file.sh | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/tests/cp/same-file.sh b/tests/cp/same-file.sh new file mode 100755 index 0000000..03f66ba --- /dev/null +++ b/tests/cp/same-file.sh @@ -0,0 +1,255 @@ +#!/bin/sh +# Test some of cp's options and how cp handles situations in +# which a naive implementation might overwrite the source file. + +# Copyright (C) 1998-2023 Free Software Foundation, Inc. + +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <https://www.gnu.org/licenses/>. + +. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src +print_ver_ cp + +# Unset CDPATH. Otherwise, output from the 'cd dir' command +# can make this test fail. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + +VERSION_CONTROL=numbered; export VERSION_CONTROL + +# Determine whether a hard link to a symlink points to the symlink +# itself or to its referent. For example, the link from FreeBSD6.1 +# does dereference a symlink, but the one from Linux does not. +ln -s no-such dangling-slink +ln dangling-slink hard-link > /dev/null 2>&1 \ + && hard_link_to_symlink_does_the_deref=no \ + || hard_link_to_symlink_does_the_deref=yes +rm -f no-such dangling-slink hard-link + +test $hard_link_to_symlink_does_the_deref = yes \ + && remove_these_sed='/^0 -[bf]*l .*sl1 ->/d; /hlsl/d' \ + || remove_these_sed='/^ELIDE NO TEST OUTPUT/d' + +exec 3>&1 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' 'hlsl sl2'; do + for options in '' -d -f -df --rem -b -bd -bf -bdf \ + -l -dl -fl -dfl -bl -bdl -bfl -bdfl -s -sf; do + case $args$options in + # These tests are not portable. + # They all involve making a hard link to a symbolic link. + # In the past, we've skipped the tests that are not portable, + # by doing "continue" here and eliminating the corresponding + # expected output lines below. Don't do that anymore. + 'symlink foo'-dfl) + continue;; + 'symlink foo'-bdl) + continue;; + 'symlink foo'-bdfl) + continue;; + 'sl1 sl2'-dfl) + continue;; + 'sl1 sl2'-bd*l) + continue;; + 'sl1 sl2'-dl) + continue;; + esac + + # cont'd Instead, skip them only on systems for which link does + # dereference a symlink. Detect and skip such tests here. + case $hard_link_to_symlink_does_the_deref:$args:$options in + 'yes:sl1 sl2:-fl') + continue ;; + 'yes:sl1 sl2:-bl') + continue ;; + 'yes:sl1 sl2:-bfl') + continue ;; + yes:hlsl*) + continue ;; + esac + + 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 "$args" in *sl2*) ln -s foo sl2;; esac + case "$args" in *hlsl*) ln sl2 hlsl;; esac + ( + ( + # echo 1>&2 cp $options $args + cp $options $args 2>_err + echo $? $options + + # Normalize the program name and diagnostics in the error output, + # and put brackets around the output. + if test -s _err; then + sed ' + s/symbolic link/symlink/ + s/^[^:]*:\([^:]*\).*/cp:\1/ + 1s/^/[/ + $s/$/]/ + ' _err + fi + # Strip off all but the file names. + ls=$(ls -gG --ignore=_err . \ + | sed \ + -e '/^total /d' \ + -e 's/^[^ ]* *[^ ]* *[^ ]* *[^ ]* *[^ ]* *[^ ]* *//') + echo "($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 '\n' ' ' + echo + ) | sed 's/ *$//' + cd .. + done + echo +done + +cat <<\EOF | sed "$remove_these_sed" > 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 --rem (foo symlink) +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) +1 -l [cp: cannot create hard link 'symlink' to 'foo'] (foo symlink -> foo) +1 -dl [cp: cannot create hard link 'symlink' to 'foo'] (foo symlink -> foo) +0 -fl (foo symlink) +0 -dfl (foo symlink) +0 -bl (foo symlink symlink.~1~ -> foo) +0 -bdl (foo symlink symlink.~1~ -> foo) +0 -bfl (foo symlink symlink.~1~ -> foo) +0 -bdfl (foo symlink symlink.~1~ -> foo) +1 -s [cp: cannot create symlink 'symlink' to 'foo'] (foo symlink -> foo) +0 -sf (foo symlink -> 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 --rem [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 -bl (foo symlink -> foo) +0 -bfl (foo symlink -> foo) +1 -s [cp: 'symlink' and 'foo' are the same file] (foo symlink -> foo) +1 -sf [cp: 'symlink' and 'foo' are the same file] (foo symlink -> foo) + +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 --rem [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 -s [cp: 'foo' and 'foo' are the same file] (foo) +1 -sf [cp: 'foo' and 'foo' are the same file] (foo) + +1 [cp: 'sl1' and 'sl2' are the same file] (foo sl1 -> foo sl2 -> foo) +0 -d (foo sl1 -> foo sl2 -> foo) +1 -f [cp: 'sl1' and 'sl2' are the same file] (foo sl1 -> foo sl2 -> foo) +0 -df (foo sl1 -> foo sl2 -> foo) +0 --rem (foo sl1 -> foo sl2) +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) +1 -l [cp: cannot create hard link 'sl2' to 'sl1'] (foo sl1 -> foo sl2 -> foo) +0 -fl (foo sl1 -> foo sl2) +0 -bl (foo sl1 -> foo sl2 sl2.~1~ -> foo) +0 -bfl (foo sl1 -> foo sl2 sl2.~1~ -> foo) +1 -s [cp: cannot create symlink 'sl2' to 'sl1'] (foo sl1 -> foo sl2 -> foo) +0 -sf (foo sl1 -> foo sl2 -> sl1) + +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 --rem (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) +1 -s [cp: 'foo' and 'hardlink' are the same file] (foo hardlink) +1 -sf [cp: 'foo' and 'hardlink' are the same file] (foo hardlink) + +1 [cp: 'hlsl' and 'sl2' are the same file] (foo hlsl -> foo sl2 -> foo) +0 -d (foo hlsl -> foo sl2 -> foo) +1 -f [cp: 'hlsl' and 'sl2' are the same file] (foo hlsl -> foo sl2 -> foo) +0 -df (foo hlsl -> foo sl2 -> foo) +0 --rem (foo hlsl -> foo sl2) +0 -b (foo hlsl -> foo sl2 sl2.~1~ -> foo) +0 -bd (foo hlsl -> foo sl2 -> foo sl2.~1~ -> foo) +0 -bf (foo hlsl -> foo sl2 sl2.~1~ -> foo) +0 -bdf (foo hlsl -> foo sl2 -> foo sl2.~1~ -> foo) +1 -l [cp: cannot create hard link 'sl2' to 'hlsl'] (foo hlsl -> foo sl2 -> foo) +0 -dl (foo hlsl -> foo sl2 -> foo) +0 -fl (foo hlsl -> foo sl2) +0 -dfl (foo hlsl -> foo sl2 -> foo) +0 -bl (foo hlsl -> foo sl2 sl2.~1~ -> foo) +0 -bdl (foo hlsl -> foo sl2 -> foo) +0 -bfl (foo hlsl -> foo sl2 sl2.~1~ -> foo) +0 -bdfl (foo hlsl -> foo sl2 -> foo) +1 -s [cp: cannot create symlink 'sl2' to 'hlsl'] (foo hlsl -> foo sl2 -> foo) +0 -sf (foo hlsl -> foo sl2 -> hlsl) + +EOF + +exec 1>&3 3>&- + +compare expected actual 1>&2 || fail=1 + +Exit $fail |