#!/bin/sh
menu_choice=""
current_cd=""
title_file="title.cdb"
tracks_file="tracks.cdb"
temp_file=/tmp/cdb.$$
trap 'rm -f $temp_file' EXIT
get_return(){
echo -e "Press return \c"
read x
return 0
}
get_confirm(){
echo -e "Are you sure? \c"
while true
do
read x
case "$x" in
y | Y | yes | Yes | YES )
return 0;;
n | N | no | No | NO )
echo
echo "Cancelled"
return 1;;
* )
echo "Please enter yes or no";;
esac
done
}
set_menu_choice(){
clear
echo "Options :-"
echo
echo " a) Add new CD"
echo " f) Find CD"
echo " c) Count the CDs and tracks in the catalog"
if [ "$cdcatmenu" != "" ]
then
echo " l) List tracks on $cdtitle"
echo " r) Remove $cdtitle"
echo " u) Update track information for $cdtitle"
fi
echo " q) Quit"
echo
echo -e "Please enter choice then press return \c"
read menu_choice
return
}
insert_title(){
echo $* >> $title_file
return
}
insert_track(){
echo $* >> $tracks_file
return
}
add_record_tracks(){
echo "Enter track information for this CD"
echo "When no more tracks enter q"
cdtrack=1
cdtitle=""
while [ "$cdtitle" != "q" ]
do
echo -e "Track $cdtrack, track title? \c"
read tmp
cdtitle=${tmp%%,*}
if [ "$tmp" != "$cdtitle" ]
then
echo "Sorry, no commas allowed"
continue
fi
if [ -n "$cdtitle" ]
then
if [ "$cdtitle" != "q" ]
then
insert_track $cdcatmenu,$cdtrack,$cdtitle
fi
else
cdtrack=$((cdtrack-1))
fi
cdtrack=$((cdtrack+1))
done
}
add_records(){
#Prompt for the initial information
echo -e "Enter catalog name \c"
read tmp
cdcatmenu=${tmp%%,*}
echo -e "Enter title \c"
read tmp
cdtitle=${tmp%%,*}
echo -e "Enter type \c"
read tmp
cdtype=${tmp%%,*}
echo -e "Enter artist/composer \c"
read tmp
cdac=${tmp%%,*}
# Check that they want to enter the information
echo About to add new entry
echo "$cdcatmenu $cdtitle $cdtype $cdac"
# If confirmed then append it to the titles file
if get_confirm
then
insert_title $cdcatmenu,$cdtitle,$cdtype,$cdac
add_record_tracks
else
remove_records*
fi
return
}
find_cd(){
if [ "$1" = "n" ]
then
asklist=n
else
asklist=y
fi
cdcatmenu=""
echo -e "Enter a string to search for in the cd titles \c"
read searchstr
if [ "$searchstr" = "" ]
then
return 0
fi
grep "$searchstr" $title_file > $temp_file
set $(wc -l $temp_file)
linesfound=$1
case "$linesfound" in
0) echo "Sorry , nothing found"
get_return
return 0;;
1) ;;
2) echo "Sorry, not unique."
echo "Found the following"
cat $temp_file
get_return
return 0
esac
IFS=","
read cdcatmenu cdtitle cdtype cdac < $temp_file
IFS=" "
if [ -z "$cdcatnum" ]
then
echo "Sorry,could not extract catalog field from $temp_file"
return 0
fi
echo
echo Catalog number: $cdcatnum
echo Title: $cdtitle
echo Type: $cdtype
echo Artist/Composer:$cdac
echo
get_return
if [ "$asklist" = "y" ]
then
echo -e "View tracks for this CD \c"
read x
if [ "$x" = "y" ]
then
echo
list_tracks
echo
fi
fi
return 1
}
update_cd(){
if [ -z "$cdcatmenu" ]
then
echo "You must select a CD first"
find_cd n
fi
if [ -n "$cdcatnum" ]
then
echo "Current tracks are :-"
list_tracks
echo
echo "This will re-enter the tracks for $cdtitle"
get_confirm && {
grep -v "^${cdcatnum}," $tracks_file > $temp_file
mv $temp_file $tracks_file
echo
add_record_tracks
}
fi
return
}
count_cds(){
set $(wc -l $title_file)
num_titles=$1
set $(wc -l $tracks_file)
num_tracks=$1
echo found $num_titles CDs, with a total of $num_tracks tracks
get_return
return
}
remove_records(){
if [ -z "$cdcatmenu" ]
then
echo You must select a CD first
find_cd n
fi
if [ -n "$cdcatnum" ]
then
echo "You are about to delete $cdtitle"
get_confirm && {
grep -v "^${cdcatnum}," $title_file > $temp_file
mv $temp_file $title_file
grep -v "^${cdcatnum}," $tracks_file > $temp_file
mv $temp_file $tracks_file
cdcatnum=""
echo Entry removed
}
get_return
fi
return
}
list_tracks(){
if [ "$cdcatnum" = "" ]
then
echo no CD select yet
return
else
grep "^${cdcatnum}," $tracks_file > $temp_file
num_tracks=$(wc -l $temp_file)
if [ "$num_tracks" = "0" ]
then
echo "no tracks found for $cdtitle"
else {
echo
echo "$cdtitle :-"
echo
cut -f 2- -d , $temp_file
echo
} | ${PAGER:-more}
fi
fi
get_return
return
}
rm -f $temp_file
if [ ! -f $title_file ]
then
touch $title_file
fi
if [ ! -f $tracks_file ]
then
touch $tracks_file
fi
# Now the application proper
clear
echo
echo
echo "Mini CD manager"
sleep 1
quit=n
while [ "$quit" != "y" ]
do
set_menu_choice
case "$menu_choice" in
a) add_records;;
r) remove_records;;
f) find_cd y;;
u) update_cd;;
c) count_cds;;
l) list_tracks;;
b)
echo
more $title_file
echo
get_return;;
q | Q ) quit=y;;
* ) echo "Sorry,choice not recognized";;
esac
done
#Tidy up and leave
rm -f $temp_file
echo "Finished"
exit 0