Make t/hooks-inittab.t using its own inittab copy

Don't use the system's one. Besides being non-existent, it can look
like whatever.

This resolves GH-36.

debian/changelog

@@ -6,6 +6,9 @@ xen-tools (4.6.2~dev-1) UNRELEASED; urgency=medium
     [ nirgal ]
     + Fixed typo in initramfs comment
   * Support checking upstream GPG signature in debian/watch.
+  * Make t/hooks-inittab.t using its own copy of the generic /etc/inittab
+    for testing instead of using the system one's. (GH#36, should fix
+    autopkgtest on systems with modified /etc/inittab)
 
  -- Axel Beckert <abe@debian.org>  Sat, 24 Oct 2015 02:37:47 +0200
 

debian/copyright

@@ -25,3 +25,15 @@ Perl is distributed under licenses:
     On Debian GNU/Linux systems, the complete text of the GNU General
     Public License can be found in /usr/share/common-licenses/GPL-1' and
     the Artistic Licence in /usr/share/common-licenses/Artistic'.
+
+t/data/inittab is Copyright 1997-2005 Miquel van Smoorenburg
+<miquels@cistron.nl> and the members pkg-sysvinit project.
+
+    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 2 of the License, or
+    (at your option) any later version.
+
+    On Debian GNU/Linux systems, the complete text of the GNU General
+    Public License version 2 can be found in
+    /usr/share/common-licenses/GPL-2'.

t/data/inittab

@@ -0,0 +1,68 @@
+# /etc/inittab: init(8) configuration.
+# $Id: inittab,v 1.91 2002/01/25 13:35:21 miquels Exp $
+
+# The default runlevel.
+id:2:initdefault:
+
+# Boot-time system configuration/initialization script.
+# This is run first except when booting in emergency (-b) mode.
+si::sysinit:/etc/init.d/rcS
+
+# What to do in single-user mode.
+~~:S:wait:/sbin/sulogin
+
+# /etc/init.d executes the S and K scripts upon change
+# of runlevel.
+#
+# Runlevel 0 is halt.
+# Runlevel 1 is single-user.
+# Runlevels 2-5 are multi-user.
+# Runlevel 6 is reboot.
+
+l0:0:wait:/etc/init.d/rc 0
+l1:1:wait:/etc/init.d/rc 1
+l2:2:wait:/etc/init.d/rc 2
+l3:3:wait:/etc/init.d/rc 3
+l4:4:wait:/etc/init.d/rc 4
+l5:5:wait:/etc/init.d/rc 5
+l6:6:wait:/etc/init.d/rc 6
+# Normally not reached, but fallthrough in case of emergency.
+z6:6:respawn:/sbin/sulogin
+
+# What to do when CTRL-ALT-DEL is pressed.
+ca:12345:ctrlaltdel:/sbin/shutdown -t1 -a -r now
+
+# Action on special keypress (ALT-UpArrow).
+#kb::kbrequest:/bin/echo "Keyboard Request--edit /etc/inittab to let this work."
+
+# What to do when the power fails/returns.
+pf::powerwait:/etc/init.d/powerfail start
+pn::powerfailnow:/etc/init.d/powerfail now
+po::powerokwait:/etc/init.d/powerfail stop
+
+# /sbin/getty invocations for the runlevels.
+#
+# The "id" field MUST be the same as the last
+# characters of the device (after "tty").
+#
+# Format:
+#  <id>:<runlevels>:<action>:<process>
+#
+# Note that on most Debian systems tty7 is used by the X Window System,
+# so if you want to add more getty's go ahead but skip tty7 if you run X.
+#
+1:2345:respawn:/sbin/getty 38400 tty1
+2:23:respawn:/sbin/getty 38400 tty2
+3:23:respawn:/sbin/getty 38400 tty3
+4:23:respawn:/sbin/getty 38400 tty4
+5:23:respawn:/sbin/getty 38400 tty5
+6:23:respawn:/sbin/getty 38400 tty6
+
+# Example how to put a getty on a serial line (for a terminal)
+#
+#T0:23:respawn:/sbin/getty -L ttyS0 9600 vt100
+#T1:23:respawn:/sbin/getty -L ttyS1 9600 vt100
+
+# Example how to put a getty on a modem line.
+#
+#T3:23:respawn:/sbin/mgetty -x0 -s 57600 ttyS3

t/hook-inittab.t

@@ -11,12 +11,13 @@ use Test::More;
 use File::Temp;
 use File::Copy;
 
+my $example_inittab = 't/data/inittab';
 my $hook_dir = $ENV{AS_INSTALLED_TESTING} ? '/usr/share/xen-tools' : 'hooks';
 
 #
-#  Check if build system has /etc/inittab.
+#  Check if example inittab is present, else bail out
 #
-if (-e "/etc/inittab") {
+if (-e $example_inittab) {
     #
     #  Rather than having a hardwired list of distributions to test
     # against we look for subdirectories beneath hooks/ and test each
@@ -38,7 +39,7 @@ if (-e "/etc/inittab") {
         }
     }
 } else {
-    plan skip_all => '/etc/inittab not present';
+    BAIL_OUT("$example_inittab not found, source distribution seems incomplete");
 }
 
 done_testing();
@@ -52,7 +53,7 @@ sub testHook
     #
     my $dir        = File::Temp::tempdir( CLEANUP => 1 );
     mkdir( $dir . "/etc", 0777 );
-    File::Copy::cp( "/etc/inittab", $dir . "/etc" );
+    File::Copy::cp( $example_inittab, $dir . "/etc" );
 
     #
     # Make sure that worked.