epm play: add --installed support, cleanup

bin/epm-play

@@ -55,14 +55,21 @@ __get_app_description()
     $1 --description 2>/dev/null
 }
 
-__epm_play_run()
+__check_play_script()
 {
     local script="$psdir/$1.sh"
     shift
 
-    if [ ! -x "$script" ] ; then
-        fatal "Can't find executable play script $script."
-    fi
+    [ -x "$script" ]
+}
+
+
+__epm_play_run()
+{
+    local script="$psdir/$1.sh"
+
+    __check_play_script "$1" || fatal "Can't find executable play script $script. Run epm play to list all available apps."
+    shift
 
     # allow use EGET in the scripts
     __set_EGET
@@ -80,7 +87,7 @@ __epm_play_run()
 
 epm_play()
 {
-local psdir="$CONFIGDIR/play.d"
+local psdir="$(realpath $CONFIGDIR/play.d)"
 
 if [ "$1" = "-h" ] || [ "$1" = "--help" ] ; then
     cat <<EOF
@@ -112,8 +119,13 @@ if [ "$1" = "--update" ] ; then
     if [ "$1" = "all" ] ; then
         shift
         for i in $(__list_installed_app) ; do
+            echo
             echo "$i"
             prescription="$i"
+            if ! __check_play_script $prescription ; then
+                warning "Can't find executable play script for $prescription. Try epm play --remove $prescription if you don't need it anymore."
+                continue
+            fi
             __epm_play_run $prescription --run "$@"
         done
         exit
@@ -128,8 +140,13 @@ if [ "$1" = "--update" ] ; then
     exit
 fi
 
+if [ "$1" = "--installed" ] ; then
+    shift
+    __check_installed_app "$1"
+    exit
+fi
 
-if [ "$1" = "--list" ] || [ "$1" = "--installed" ] ; then
+if [ "$1" = "--list" ] ; then
     shift
     local i
     if [ -n "$short" ] ; then
@@ -171,10 +188,11 @@ if [ "$1" = "--list-all" ] || [ -z "$*" ] ; then
     done
     echo
     echo "run epm play"
-    echo "             --list                - to list installed only"
-    echo "             --list-all (default)  - to list all app"
-    echo "             --remove <app>        - to remove app"
-    echo "             --update <app>|all    - to update app or all installed apps"
+    echo "             --list                - list installed apps"
+    echo "             --list-all (default)  - list all apps"
+    echo "             --remove <app>        - remove <app>"
+    echo "             --update <app>|all    - update <app> or all installed apps"
+    echo "             --installed <app>     - check if the app is installed"
     echo "             --short (with --list) - list names only"
     exit
 fi