emacspeak 45.0+dfsg-1 / usr / sbin / emacspeakconfig

#!/bin/sh
#
#  emacspeakconfig - configuration script for emacspeak
#
#  This script sets values in /etc/emacspeak.conf, which override the
#  defaults compiled into emacspeak TCL scripts and .elc files.
#  Values in the user's environment will override those in
#  /etc/emacspeak.conf
#
#  Written by Jim Van Zandt <jrv@debian.org> for Debian Linux,
#  and hereby placed in the public domain for use by anyone.

set -e

CFG=/etc/emacspeak.conf
GROUPFILE=/etc/group
DRIVERDIR=/usr/lib/emacs/common/emacspeak/drivers
USUAL=/usr/share/emacs/site-lisp/emacspeak

# on a Slackware or Red Hat system, a user may attempt configuration
# with awk missing.
if [ -x /usr/bin/awk -o -x /bin/awk ]; then true; else
cat <<EOF

awk is missing.
Please execute /usr/sbin/emacspeakconfig again after installing it.

EOF
    echo -n "Press Enter: "; read junk;
    exit 1;
fi

set -- `getopt i $*`
if test $? != 0
then
    echo 'Usage: emacspeakconfig [-i]'
    exit 2
fi
initial=no
for i
do
    case "$i"
    in
       	-i)
       		initial=yes; shift;;
       	--)
       		shift; break;;
    esac
done

#echo initial=$initial

# if there is no configuration file, then create one
if [ -s $CFG ]; then
  true
else
cat >$CFG  <<\EOF
# emacspeak configuration file
#
#
if [ "$DTK_PROGRAM" = "" ]; then
  DTK_PROGRAM=
fi
if [ "$DTK_TCL" = "" ]; then
  DTK_TCL=
fi
if [ "$DTK_PORT" = "" ]; then
  DTK_PORT=
fi
if [ "$DTK_DEVICE" = "" ]; then
  DTK_DEVICE=
fi
export DTK_PROGRAM DTK_PORT DTK_DEVICE
if [ "$DTK_TCL" != "" ]; then export DTK_TCL; fi
EOF
fi

# if the configuration file does not set the DTK_DEVICE variable, then
# add that section
if grep 'export.*DTK_DEVICE' $CFG >/dev/null ; then
  true
else
    awk '
    / *export/{
	print "if [ \"$DTK_DEVICE\" = \"\" ]; then";
	print "DTK_DEVICE=";
	print "fi";
	print "export DTK_PROGRAM DTK_PORT DTK_DEVICE";
	print "if [ \"$DTK_TCL\" != \"\" ]; then export DTK_TCL; fi";
	next;}
	{print;}' $CFG > $CFG.TMP && mv $CFG.TMP $CFG
fi

# return success if answer is "yes"
yesno() {
# first argument is question
# second argument is default answer
while true; do
    echo -n "$1 [$2]: "; read ans;
    if [ "$ans" = "" ]; then ans=$2; fi
    if [ "$ans" = "y" -o "$ans" = "Y" -o "$ans" = "yes" ]; then return 0; fi
    if [ "$ans" = "n" -o "$ans" = "N" -o "$ans" = "no" ]; then return 1; fi
done
}

# set TEXT to a string typed by the user
text() {
# first argument is question
# second argument is default answer
echo -n "$1 [$2]: "; read ans;
if [ "$ans" = "" ]; then ans=$2; fi
TEXT=$ans
}

# get parameters for some new synthesizer
request_params() {
    text "Please enter the name of the synthesizer" "$DEVICE"; DEVICE=$TEXT
    if [ "$TCL" = "tcl" ]; then IS_TCL=y; else IS_TCL=n; fi
    if yesno "Is the speech server a TCL script? " $IS_TCL ; then 
	echo "These files in $USUAL/servers appear to be TCL scripts:"
	(cd $USUAL/servers; grep -l dectalk_globals * 2>/dev/null)
        text "Please enter the name (not path) of the $DEVICE speech server" \
	    ${PROGRAM:-$TCL}
        PROGRAM=$TEXT
	TCL=tcl; 
    else 
        text "Please enter the full path name of the $DEVICE speech server" \
	${PROGRAM:-$TCL}
	TCL=$TEXT
	PROGRAM=; 
    fi;
    if echo $PORT|grep '^/dev/ttyS' >/dev/null; then ans=y; else ans=n; fi;
    if yesno "Is the $DEVICE connected to a serial port?" $ans ; then
	true;
    else
	valid=no;
	while [ "$valid" = "no" ]; do
            text "Please enter the device (for example, /dev/lp0): " \
                ${PORT:-/dev/lp0}
	    PORT=$TEXT; 
	    if check_port; then valid=yes; fi
	done
	HAVE_PORT=yes;
    fi;

# echo "PROGRAM=$PROGRAM, TCL=$TCL, PORT=$PORT"
}

# print warning if a program does not exist
check_pgm() {
if [ -x $TCL -o -x /usr/bin/$TCL ]; then true; else
    echo
    echo "NOTICE: Before using Emacspeak, please install"
    echo "        $TCL"
    echo
    echo -n "Press Enter to continue: "; read junk;
fi
}

# return success if $PORT is (or will be) a valid character device
check_port() {

if [ -c "$PORT" ]; then return 0; fi
echo "$PORT is not a character device"
yesno "Will $PORT be compiled into the kernel or loaded as a module?" "y"
}

#	give a user a supplementary group ID
#
#       usage:  enroll user1[,user2...]  group1[,group2...]
enroll() {
set -e
awk '
BEGIN {
  FS=":";
  OFS=":";
  if (ARGC<4) {
    print "requires two arguments" >"/dev/stderr";
    exit(1);
  }
  userlist=ARGV[1];
  if (userlist!~/^[a-z][a-z,]*$/) {
    print "invalid user list" >"/dev/stderr"; 
    exit(1);
  }
  nu=split(userlist,user,",");
  grouplist=ARGV[2];
  if (grouplist!~/^[a-z][a-z,]*$/) {
    print "invalid group list" >"/dev/stderr"; 
    exit(1);
  }
  ng=split(grouplist,group,",");
#  printf("%d users: ",nu); 
#  for (i=1; i<=nu; i++) printf("%s ", user[i]); 
#  printf("\n");
#  printf("%d groups: ",ng); 
#  for (i=1; i<=nu; i++) printf("%s ", group[i]); 
#  printf("\n");
  ARGC=2;
  ARGV[1]=ARGV[3];
}
{
  for (i=1; i<=ng; i++) {
    if ($1~group[i]) {
      if (NF==3) {		# no group members yet
	$4=userlist;
      } else {			# already some group members
	delete names;
	delete member;
	split($4,names,",");
	for (j in names) {member[names[j]]=1;}
	for (j=1;j <= nu;j++) {member[user[j]]=1;}
	$4="";
	for (name in member) {$4=$4 "," name;}
	$4=substr($4, 2);
      }
    }
  }
  print;
}' $1 $2 $GROUPFILE >$GROUPFILE.$$ && mv $GROUPFILE.$$ $GROUPFILE
}

#	take a supplementary group ID away from a user
#
#       usage: dismiss  user1[,user2...]  group1[,group2...]
dismiss() {
set -e
awk '
BEGIN {
  FS=":";
  OFS=":";
  if (ARGC<4) {
    print "requires two arguments" >"/dev/stderr";
    exit(1);
  }
  userlist=ARGV[1];
  if (userlist!~/^[a-z][a-z,]*$/) {
    print "invalid user list" >"/dev/stderr"; 
    exit(1);
  }
  nu=split(userlist,user,",");
  grouplist=ARGV[2];
  if (grouplist!~/^[a-z][a-z,]*$/) {
    print "invalid group list" >"/dev/stderr"; 
    exit(1);
  }
  ng=split(grouplist,group,",");
#printf("userlist=%s\n",userlist);
#printf("%d users: ",nu); for (i=1; i<=nu; i++) printf("%s ", user[i]); printf("\n");
#printf("%d groups: ",ng); for (i=1; i<=nu; i++) printf("%s ", group[i]); printf("\n");
  ARGC=2;
  ARGV[1]=ARGV[3];
}
{
  for (i=1; i<=ng; i++) {
    if ($1~group[i]) {
      if (NF==3) {		# no group members yet
      } else {			# already some group members
	delete names;
	delete member;
	split($4,names,",");
	for (j in names) {member[names[j]]=1;}
	for (j=1;j <= nu;j++) {delete member[user[j]];}
	$4="";
	for (name in member) {$4=$4 "," name;}
	$4=substr($4, 2);
      }
    }
  }
  print;
}' $1 $2 $GROUPFILE >$GROUPFILE.$$ && mv $GROUPFILE.$$ $GROUPFILE
}

# get the current parameter values (if any) from the configuration file
if [ -s $CFG ]; then
   PORT=`awk 'BEGIN{FS="="}/^ *DTK_PORT/{print $2}' $CFG`
   TCL=`awk 'BEGIN{FS="="}/^ *DTK_TCL/{print $2}' $CFG`
   PROGRAM=`awk 'BEGIN{FS="="}/^ *DTK_PROGRAM/{print $2}' $CFG`
   DEVICE=`awk '
   / *DTK_DEVICE="?.*"?/{
	word=substr($0,index($0,"=")+1);
	gsub(/\"/,"",word);
	if (length(word) == 0) word="DECtalk Express";
	print word;
   }' $CFG`
fi
HAVE_PORT=no;

#echo initial values are: PROGRAM=$PROGRAM TCL=$TCL PORT=$PORT DEVICE=$DEVICE
#echo getting speech server choice

# There must be a file foo.blurb in $BLURBS for each distinct
# combination of speech server and hardware device.  It contains lines
# beginning with a single word and a colon (anything else is ignored).
# The valid words are
#   blurb: the description to print
#   device: value for DTK_DEVICE (supplies default for next time)
#   tcl: value for DTK_TCL
#   program: value for DTK_PROGRAM

# get synthesizer name
if [ $initial = no -o "$PROGRAM" = "" -o "$TCL" = "" ]; then
    valid=no
    while [ $valid = no ]; do

	# first pass: print menu
    	awk '
    	BEGIN {
    	  printf("Please enter the number of your choice:\n\n");
    	  ARGC=1;
    	  cmd = "ls " ARGV[1] "/blurbs/*.blurb";
    	  while (cmd|getline >0){bname[++n] = $1;}
    	  for (i = 1; i <= n; i++){
    	    while (getline < bname[i] > 0){
    	      if ($0 ~ /^blurb:/){$1 = ""; blurb[i] = $0;}
    	      if ($0 ~ /^program:/){program[i] = $2;}
    	      if ($0 ~ /^tcl:/){tcl[i] = $2;}
    	      if ($0 ~ /^device:/){$1 = ""; device[i] = $0;}
    	    }
    	    close(bname[i]);
    	    printf("  %2d %s\n", i, blurb[i]);
    	  }
    	  printf("   o  other.  I can provide the filename\n");
    	  printf("   a  abort, and restart configuration after\n");
	  printf("      installation of another speech server package\n"); 
    	}' $USUAL "$DEVICE"

	# second pass: determine default choice
    	area=`awk '
    	BEGIN {
    	  ARGC=1;
    	  cmd = "ls " ARGV[1] "/blurbs/*.blurb";
    	  while (cmd|getline >0){bname[++n] = $1;}
    	  for (i = 1; i <= n; i++){
    	    while (getline < bname[i] > 0){
    	      if ($0 ~ /^blurb:/){$1 = ""; blurb[i] = $0;}
    	      if ($0 ~ /^program:/){program[i] = $2;}
    	      if ($0 ~ /^tcl:/){tcl[i] = $2;}
    	      if ($0 ~ /^device:/){$1 = ""; device[i] = $0;}
    	    }
    	    if (index(device[i],ARGV[2])){deflt=i;}
    	    if (index(device[i],"DECtalk Express")){decexp=i;}
    	    close(bname[i]);
    	  }
    	  if (deflt == 0) print decexp;
    	  print deflt;
    	}' $USUAL "$DEVICE" `

	# get answer from user
	text "Number" $area; area=$TEXT

	# third pass: set shell variables according to his choice
        eval `awk '
        BEGIN {
          ARGC=1;
          cmd = "ls " ARGV[1] "/blurbs/*.blurb";
          while (cmd|getline >0){bname[++n] = $1;}
          for (i = 1; i <= n; i++){
            while (getline < bname[i] > 0){
              if ($0 ~ /^blurb:/){$1 = ""; blurb[i] = $0;}
              if ($0 ~ /^program:/){program[i] = $2;}
              if ($0 ~ /^tcl:/){tcl[i] = $2;}
              if ($0 ~ /^device:/){$1 = ""; device[i] = $0;}
            }
            if (i == ARGV[2]){
              sub(/^ */,"",device[i]);
              printf("PROGRAM=%s; TCL=%s; DEVICE=\"%s\"; valid=yes;\n", \
        	     program[i], tcl[i], device[i]);
            }
          }
        }' $USUAL $area`
	if [ "$area" = "a" ]; then exit 0; fi
	if [ "$area" = "0" -o "$area" = "o" -o "$area" = "O" ]; then
	    request_params;
	fi
	if [ "$PROGRAM" = "none" -o "$PROGRAM" = "" ]; then check_pgm; fi
    done
fi

#echo new values are: DEVICE=$DEVICE PROGRAM=$PROGRAM TCL=$TCL PORT=$PORT

# get unix device
if [ "$DEVICE" = "DoubleTalk PC" ]; then
    IN_PORT=/dev/dtlk
else
    IN_PORT=$PORT
    if [ "$IN_PORT" = "" -o "$IN_PORT" = "/dev/dtlk" ]; then
	IN_PORT=/dev/ttyS0;
    fi
fi
if [ $HAVE_PORT = no ]; then
    if [ $initial = no -o "$PORT" = "" ]; then
    	valid=no
    	while [ $valid = no ]; do
    	    text "
    Your speech synthesizer is connected to which port, if any?
    (The first serial port would be /dev/ttyS0.
    This is ignored for a software synthesizer)" $IN_PORT
    	    PORT=$TEXT
    	    if check_port $PORT; then valid=yes; fi
    	done
    fi
fi

#echo " "
#echo emacspeak is configured for $DEVICE attached to $PORT

# adjust unix device group membership if needed
if [ -c "$PORT" ]; then
    DEVICEGROUP=`ls -l -L $PORT|awk '{print $4}'`
else
    if [ "$DEVICE" = "DoubleTalk PC" -a -f /etc/makedev.cfg ]; then
	DEVICEGROUP=`awk '/audio:/{print $4}' /etc/makedev.cfg`
    else 
	DEVICEGROUP=audio
    fi
    echo "$PORT is assumed to be in group: $DEVICEGROUP"
fi

if [ $DEVICEGROUP = root ];
then
    echo "$PORT is in group: root"
    echo "please move it to another group with chown,"
    echo "then repeat emacspeak configuration"
    exit 1
fi

# skip the enrolling of additional users if there is already at least
# one user, and it's the initial installation
MEMBERS=`grep ^${DEVICEGROUP} $GROUPFILE|awk 'BEGIN{FS=":"}{print $4}'`
if [ "$MEMBERS" = "" -o $initial = no ];
then
    echo " "
    echo $PORT can be accessed by members of the group: $DEVICEGROUP.
    if [ "$MEMBERS" = "" ]; 
    then echo "Currently, no users are in group $DEVICEGROUP";
    else echo "Currently, these users are in group $DEVICEGROUP: $MEMBERS";
    fi
    finished=no
    while [ $finished = no ]; do
	echo " "
	echo "If you wish to enroll any other users into group $DEVICEGROUP,"
	echo "(even if their accounts have not been created yet),"
	echo -n "please list their usernames here separated by commas: "
	read USERS
	if [ "$USERS" = "" ] || enroll $USERS $DEVICEGROUP; then 
	    finished=yes; 
	fi
    done
    finished=no
    while [ $finished = no ]; do
	echo " "
	echo "If you wish to remove any users from group $DEVICEGROUP,"
	echo -n "please list their usernames here separated by commas: "
	read USERS
	if [ "$USERS" = "" ] || dismiss $USERS $DEVICEGROUP; then 
	    finished=yes; 
	fi
    done
fi

echo " "
echo "You may reconfigure emacspeak at any time by running emacspeakconfig as root"

# make sure the group has both read and write permissions
if [ -e "$PORT" ]; then chmod g+rw $PORT; fi

# update the configuration file    
sed -e "s@^ *DTK_PROGRAM=.*@  DTK_PROGRAM=$PROGRAM@" \
    -e "s@^ *DTK_PORT=.*@  DTK_PORT=$PORT@" \
    -e "s@^ *DTK_TCL=.*@  DTK_TCL=$TCL@" \
    -e "s@^ *DTK_DEVICE=.*@  DTK_DEVICE=\"$DEVICE\"@" \
    $CFG > $CFG.TMP && mv $CFG.TMP $CFG