[PATCH] fixup and warn about syscons keymap file names used with vt

[Stefan Esser]

The attached patch implements the following new features to aid with the
transition from syscons to vt:

1) Determine whether executed under syscons or vt

2) Display the console type used in log messages

3) Warn about keymap files, that cannot be loaded

4) Suggest a compatible keymap file to use under vt,
   if a syscons keymap is specified in rc.conf

5) Load the suggested keymap file (may be crucial
   for systems first booted under vt, if the keymap
   is to different from the default and the name has
   not been updated in rc.conf before the reboot)

With these patches it should be possible to test vt on a system that
is configured for syscons.

Please test and report any findings.

I want to commit this change to head as soon as possible to make
sure it will make it into 10.1 ...

Regards, STefan
-------------- next part --------------
Index: syscons
===================================================================
--- syscons	(Revision 270646)
+++ syscons	(Arbeitskopie)
@@ -45,16 +45,118 @@
 kbddev=/dev/ttyv0
 viddev=/dev/ttyv0
 
-_sc_config="syscons"
+_sc_config=
+_sc_console=
 _sc_initdone=
+_sc_keymap_msg=
 sc_init()
 {
 	if [ -z "${_sc_initdone}" ]; then
+		if [ -z "${_sc_console}" ]; then
+			if [ x`sysctl -n kern.vty` = x"vt" ]; then
+				_sc_console="vt"
+			else
+				_sc_console="syscons"
+			fi
+			_sc_config="${_sc_console}"
+		fi
 		echo -n "Configuring ${_sc_config}:"
 		_sc_initdone=yes
 	fi
 }
 
+# syscons to vt migration helper
+lookup_keymap_for_vt()
+{
+	keymap=`basename $1 .kbd`
+	case $keymap in
+hy.armscii-8)			echo am;;
+be.iso.acc)			echo be.acc;;
+be.iso)				echo be;;
+bg.bds.ctrlcaps)		echo bg.bds;;
+bg.phonetic.ctrlcaps)		echo bg.phonetic;;
+br275.iso.acc)			echo br;;
+br275.*)			echo br.noacc;;
+by.*)				echo by;;
+fr_CA.iso.acc)			echo ca-fr;;
+swissgerman.macbook.acc)	echo ch.macbook.acc;;
+swissgerman.iso.acc)		echo ch.acc;;
+swissgerman.*)			echo ch;;
+swissfrench.iso.acc)		echo ch-fr.acc;;
+swissfrench.*)			echo ch-fr;;
+ce.iso2)			echo centraleuropean.qwerty;;
+colemak.iso15.acc)		echo colemak.acc;;
+cs.*|cz.*)			echo cz;;
+german.iso.acc)			echo de.acc;;
+german.*)			echo de;;
+danish.iso.acc)			echo dk.acc;;
+danish.iso.macbook)		echo dk.macbook;;
+danish.*)			echo dk;;
+estonian.*)			echo ee;;
+spanish.dvorak)			echo es.dvorak;;
+spanish.iso*.acc)		echo es.acc;;
+spanish.iso)			echo es;;
+finnish.*)			echo fi;;
+fr.macbook.acc)			echo fr.macbook;;
+fr.iso.acc)			echo fr.acc;;
+fr.iso)				echo fr;;
+el.iso07)			echo gr;;
+gr.us101.acc)			echo gr.101.acc;;
+hr.iso)				echo hr;;
+hu.iso2.101keys)		echo hu.101;;
+hu.iso2.102keys)		echo hu.102;;
+iw.iso8)			echo il;;
+icelandic.iso.acc)		echo is.acc;;
+icelandic.iso)			echo is;;
+it.iso)				echo it;;
+jp.106x)			echo jp.capsctrl;;
+jp.106)				echo jp;;
+#?? jp.pc98.iso)		echo jp.pc98;;
+kk.pt154.io)			echo kz.io;;
+kk.pt154.kst)			echo kz.kst;;
+latinamerican.iso.acc)		echo latinamerican.acc;;
+lt.iso4)			echo lt;;
+norwegian.iso)			echo no;;
+norwegian.dvorak)		echo no.dvorak;;
+dutch.iso.acc)			echo nl;;
+eee_nordic)			echo nordic.asus-eee;;
+pl_PL.dvorak)			echo pl.dvorak;;
+pl_PL.ISO8859-2)		echo pl;;
+pt.iso.acc)			echo pt.acc;;
+pt.iso)				echo pt;;
+ru.koi8-r.shift)		echo ru.shift;;
+ru.koi8-r.win)			echo ru.win;;
+ru.*)				echo ru;;
+swedish.*)			echo se;;
+si.iso)				echo si;;
+sk.iso2)			echo sk;;
+tr.iso9.q)			echo tr;;
+ua.koi8-u.shift.alt)		echo ua.shift.alt;;
+ua.*)				echo ua;;
+uk.*-ctrl)			echo uk.capsctrl;;
+uk.dvorak)			echo uk.dvorak;;
+uk.*)				echo uk;;
+us.iso.acc)			echo us.acc;;
+us.pc-ctrl)			echo us.ctrl;;
+us.iso)				echo us;;
+    esac
+}
+
+kbdcontrol_load_keymap()
+{
+	errmsg=`kbdcontrol < ${kbddev} -l ${keymap} 2>&1`
+	if [ -n "${errmsg}" -a "${_sc_console}" = "vt" ]; then
+		_sc_keymap_msg="${errmsg}"
+		keymap_vt=`lookup_keymap_for_vt ${keymap}`
+		if [ -n "${keymap_vt}" ]; then
+			errmsg=`kbdcontrol < ${kbddev} -l ${keymap_vt} 2>&1`
+			if [ -z "${errmsg}" ]; then
+		    		_sc_keymap_msg="New keymap name: In /etc/rc.conf replace 'keymap=${keymap}' by 'keymap=${keymap_vt}'"
+			fi
+		fi
+	fi
+}
+
 # helper
 syscons_configure_keyboard()
 {
@@ -65,7 +167,7 @@
 		;;
 	*)
 		sc_init
-		echo -n ' keymap';	kbdcontrol < ${kbddev} -l ${keymap}
+		echo -n ' keymap';	kbdcontrol_load_keymap
 		;;
 	esac
 
@@ -139,10 +241,9 @@
 	#
 	if [ -n "${_sc_initdone}" ]; then
 		echo '.'
-		_sc_config="syscons"
+		_sc_config="${_sc_console}"
 		_sc_initdone=
 	fi
-
 }
 
 syscons_precmd()
@@ -256,6 +357,12 @@
 	fi
 
 	[ -n "${_sc_initdone}" ] && echo '.'
+	if [ -n "${_sc_keymap_msg}" ]; then
+		echo
+		echo "WARNING:"
+		echo "${_sc_keymap_msg}."
+		echo
+	fi
 }
 
 load_rc_config $name