qemu-iotests: inline common.config into common.rc

common.rc has some complicated logic to find the common.config that
dates back to xfstests and is completely unnecessary now.  Just include
the contents of the file.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20220505094723.732116-1-pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

tests/qemu-iotests/common.config

-#!/usr/bin/env bash
-#
-# Copyright (C) 2009 Red Hat, Inc.
-# Copyright (c) 2000-2003,2006 Silicon Graphics, Inc.  All Rights Reserved.
-#
-# 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.
-#
-# This program is distributed in the hope that it would 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/>.
-#
-# all tests should use a common language setting to prevent golden
-# output mismatches.
-export LANG=C
-
-PATH=".:$PATH"
-
-HOSTOS=$(uname -s)
-arch=$(uname -m)
-[[ "$arch" =~ "ppc64" ]] && qemu_arch=ppc64 || qemu_arch="$arch"
-
-# make sure we have a standard umask
-umask 022
-
-_optstr_add()
-{
-    if [ -n "$1" ]; then
-        echo "$1,$2"
-    else
-        echo "$2"
-    fi
-}
-
-# make sure this script returns success
-true

tests/qemu-iotests/common.rc

@@ -17,6 +17,17 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 
+export LANG=C
+
+PATH=".:$PATH"
+
+HOSTOS=$(uname -s)
+arch=$(uname -m)
+[[ "$arch" =~ "ppc64" ]] && qemu_arch=ppc64 || qemu_arch="$arch"
+
+# make sure we have a standard umask
+umask 022
+
 # bail out, setting up .notrun file
 _notrun()
 {
@@ -120,18 +131,14 @@ peek_file_raw()
     dd if="$1" bs=1 skip="$2" count="$3" status=none
 }
 
-config=common.config
-test -f $config || config=../common.config
-if ! test -f $config
-then
-    echo "$0: failed to find common.config"
-    exit 1
-fi
-if ! . $config
-    then
-    echo "$0: failed to source common.config"
-    exit 1
-fi
+_optstr_add()
+{
+    if [ -n "$1" ]; then
+        echo "$1,$2"
+    else
+        echo "$2"
+    fi
+}
 
 # Set the variables to the empty string to turn Valgrind off
 # for specific processes, e.g.