Change "rm --verbose -r a//" not to print extra slashes in a///b

* src/remove.c (push_dir): Don't copy trailing slashes onto the stack.
Reported by François Pinard.
* tests/rm/v-slash: New file.  Test for the above change.
* tests/rm/Makefile.am (TESTS): Add v-slash.

4 files changed, 62 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index a142eff77..1cc257a94 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
 2007-08-22  Jim Meyering  <jim@meyering.net>
 
+	Change "rm --verbose -r a//" not to print extra slashes in a///b
+	* src/remove.c (push_dir): Don't copy trailing slashes onto the stack.
+	Reported by François Pinard.
+	* tests/rm/v-slash: New file.  Test for the above change.
+	* tests/rm/Makefile.am (TESTS): Add v-slash.
+
 	* src/date.c: Don't include "getline.h", now removed from gnulib;
 	its declarations are now in <stdio.h>.
 	* src/md5sum.c: Likewise.
diff --git a/src/remove.c b/src/remove.c
index 58072adde..773ed12dc 100644
--- a/src/remove.c
+++ b/src/remove.c
@@ -220,6 +220,10 @@ push_dir (Dirstack_state *ds, const char *dir_name)
 {
   size_t len = strlen (dir_name);
 
+  /* Don't copy trailing slashes.  */
+  while (1 < len && dir_name[len - 1] == '/')
+    --len;
+
   /* Append the string onto the stack.  */
   obstack_grow (&ds->dir_stack, dir_name, len);
 
diff --git a/tests/rm/Makefile.am b/tests/rm/Makefile.am
index 569c3342c..2246ecd6f 100644
--- a/tests/rm/Makefile.am
+++ b/tests/rm/Makefile.am
@@ -17,6 +17,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 TESTS = \
+  v-slash \
   i-never \
   fail-eacces \
   one-file-system \
diff --git a/tests/rm/v-slash b/tests/rm/v-slash
new file mode 100755
index 000000000..ad20d5141
--- /dev/null
+++ b/tests/rm/v-slash
@@ -0,0 +1,51 @@
+#!/bin/sh
+# avoid extra slashes in --verbose output
+
+# Copyright (C) 2007 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/>.
+
+if test "$VERBOSE" = yes; then
+  set -x
+  rm --version
+fi
+
+pwd=`pwd`
+t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$
+trap 'status=$?; cd "$pwd" && chmod -R u+rwx $t0 && rm -rf $t0 && exit $status' 0
+trap '(exit $?); exit $?' 1 2 13 15
+
+framework_failure=0
+mkdir -p $tmp || framework_failure=1
+cd $tmp || framework_failure=1
+mkdir a || framework_failure=1
+touch a/x || framework_failure=1
+
+if test $framework_failure = 1; then
+  echo "$0: failure in testing framework" 1>&2
+  (exit 1); exit 1
+fi
+
+fail=0
+
+rm --verbose -r a/// > out || fail=1
+cat <<\EOF > exp || fail=1
+removed `a/x'
+removed directory: `a'
+EOF
+
+cmp out exp || fail=1
+test $fail = 1 && diff out exp 2> /dev/null
+
+(exit $fail); exit $fail