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coreutils/tests/cp/preserve-link
Jim Meyering e43d30eab3 tests: convert nearly all ... expressions to $(...)
Exempt init.sh because it runs before we're assured to have a
shell that groks $(...).  Exempt *.mk because "$" would have to
be doubled, and besides, any `...` expression in a .mk file is
almost certainly evaluated before init.sh is run.  Finally, also
exempt the perl-based tests, because perl's `...` cannot be
converted to $(...).  Do that by running this command:

git grep -l '`.*`' tests \
  | grep -Ev 'init\.sh|\.mk$' | xargs grep -Lw perl \
  | xargs perl -pi -e 's/`(.*?)`/\$($1)/g'

One minor fix-up change was required after that, due to how
quoting differs:
diff --git a/tests/chmod/equals b/tests/chmod/equals
-    expected_perms=$(eval 'echo \$expected_'$dest)
+    expected_perms=$(eval 'echo $expected_'$dest)

Another was to make these required quoting adjustments:
diff --git a/tests/misc/stty b/tests/misc/stty
...
-  rev=$(eval echo "\\\$REV_$opt")
+  rev=$(eval echo "\$REV_$opt")
...
-      rev1=$(eval echo "\\\$REV_$opt1")
-      rev2=$(eval echo "\\\$REV_$opt2")
+      rev1=$(eval echo "\$REV_$opt1")
+      rev2=$(eval echo "\$REV_$opt2")

Also, transform two files that were needlessly excluded above:
(both use perl, but are mostly bourne shell)

  perl -pi -e 's/`(.*?)`/\$($1)/g' \
    tests/du/long-from-unreadable tests/init.cfg
2012-04-04 12:20:56 +02:00

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#!/bin/sh
# Exercise the fix for http://debbugs.gnu.org/8419
# Copyright (C) 2011-2012 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 <http://www.gnu.org/licenses/>.
. "${srcdir=.}/init.sh"; path_prepend_ ../src
print_ver_ cp
same_inode()
{
local u v
u=$(stat --format %i "$1") &&
v=$(stat --format %i "$2") && test "$u" = "$v"
}
create_source_tree()
{
rm -Rf s
mkdir s || framework_failure_
# a missing link in dest will be created
touch s/f || framework_failure_
ln s/f s/linkm || framework_failure_
# an existing link in dest will be maintained
ln s/f s/linke || framework_failure_
# a separate older file in dest will be overwritten
ln s/f s/fileo || framework_failure_
# a separate newer file in dest will be overwritten!
ln s/f s/fileu || framework_failure_
}
create_target_tree()
{
f=$1 # which of f or linkm to create in t/
rm -Rf t
mkdir -p t/s/ || framework_failure_
# a missing link in dest must be created
touch t/s/$f || framework_failure_
# an existing link must be maintained
ln t/s/$f t/s/linke || framework_failure_
# a separate older file in dest will be overwritten
touch -d '-1 hour' t/s/fileo || framework_failure_
# a separate newer file in dest will be overwritten!
touch -d '+1 hour' t/s/fileu || framework_failure_
}
# Note we repeat this, creating either one of
# two hard linked files from source in the dest, so as to
# test both paths in $(cp) for creating the hard links.
# The path taken by cp is dependent on which cp encounters
# first in the source, which is non deterministic currently
# (I'm guessing that results are sorted by inode and
# beauses they're the same here, and due to the sort
# being unstable, either can be processed first).
create_source_tree
for f in f linkm; do
create_target_tree $f
# Copy all the hard links across. With cp from coreutils-8.12
# and prior, it would sometimes mistakenly copy rather than link.
cp -au s t || fail=1
same_inode t/s/f t/s/linkm || fail=1
same_inode t/s/f t/s/linke || fail=1
same_inode t/s/f t/s/fileo || fail=1
same_inode t/s/f t/s/fileu || fail=1
done
Exit $fail