epm: add EPMMODE: package, single, pipe, git

bin/epm

@@ -35,7 +35,13 @@ CONFIGDIR=$PROGDIR/../etc
 
 EPMVERSION="@VERSION@"
 
-if [ "$EPMVERSION" = "@""VERSION""@" ] ; then
+# package, single (file), pipe, git
+EPMMODE="package"
+[ "$SHAREDIR" = "$PROGDIR" ] && EPMMODE="single"
+[ "$EPMVERSION" = "@""VERSION""@" ] && EPMMODE="git"
+[ "$PROGNAME" = "" ] && EPMMODE="pipe"
+
+if [ "$EPMMODE" = "git" ] ; then
     EPMVERSION=$(head $PROGDIR/../eepm.spec | grep "^Version: " | sed -e 's|Version: ||' )
 fi
 

bin/epm-play

@@ -343,6 +343,7 @@ __epm_play_install()
 
 epm_play()
 {
+[ "$EPMMODE" = "package" -o "$EPMMODE" = "git" ] || fatal "epm play is not supported in single file mode"
 local psdir="$(realpath $CONFIGDIR/play.d)"
 local prsdir="$(realpath $CONFIGDIR/prescription.d)"