Add new program: truncate

* AUTHORS: Register as the author
* NEWS: Mention this change
* README: Add truncate command to list
* src/truncate.c: New command
* src/Makefile.am: Add truncate command to list to build
* src/.gitignore: Add truncate binary to list to ignore
* doc/coreutils.texi (truncate invocation): Add truncate info
* man/Makefile.am: Add truncate man page to list to build
* man/truncate.x: Add truncate man page template
* po/POTFILES.in: Add truncate to list to translate
* tests/Makefile.am: Add truncate tests
* tests/misc/help-version: Add support for new truncate command
* tests/misc/truncate-dangling-symlink: check dangling link ok
* tests/misc/truncate-dir-fail: ensure dirs fail
* tests/misc/truncate-fail-diag: validate messages for missing paths
* tests/misc/truncate-fifo: ensure fifos ignored
* tests/misc/truncate-no-create-missing: ensure -c option honoured
* tests/misc/truncate-overflow: check signed integer overflows
* tests/misc/truncate-owned-by-other: root permissions check
* tests/misc/truncate-parameters: check invalid parameter combinations
* tests/misc/truncate-relative: check invalid relative sizes

1 files changed, 43 insertions, 0 deletions

diff --git a/tests/misc/truncate-parameters b/tests/misc/truncate-parameters
new file mode 100755
index 000000000..e41683190
--- /dev/null
+++ b/tests/misc/truncate-parameters
@@ -0,0 +1,43 @@
+#!/bin/sh
+# Validate truncate parameter combinations
+
+# Copyright (C) 2008 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
+  truncate --version
+fi
+
+. $srcdir/test-lib.sh
+
+fail=0
+
+# must specify at least 1 file
+truncate --size=0 && fail=1
+
+# must specify size. don't default to 0
+truncate file && fail=1
+
+# mixture of size & reference not allowed
+truncate --size=0 --reference=file file && fail=1
+
+# blocks without size is not valid
+truncate --io-blocks --reference=file file && fail=1
+
+# must specify valid numbers
+truncate --size="invalid" file && fail=1
+
+(exit $fail); exit $fail