+# cases C = create ok, R = full package id, F = specified package file
+
+# immediate error
+# C-- 100 error, must specify something
+# --- 000 error, must specify something
+if [ -z "$release" ] && [ -z "$pkgfile" ]; then
+ die must specify package file or complete package id
+fi
+
+# TODO look in package file
+# --F 001 error, wouldn't know which pkgid to create, could derive from file?
+# C-F 101 error, since package wouldn't exist in file to find
+if [ -z "$release" ]; then
+ die must specify complete package id
+fi
+
+# set file from pkgid
+# CR- 110 set file from pkgid, create if needed
+# -R- 010 set file from pkgid, create in file, error if no file
+if [ -z "$pkgfile" ]; then
+ pkgfile="$pkgid.zpm"
+fi
+
+# will now be one of these
+# CRF 111 create package in file given, create file if needed
+# -RF 011 create package in file, error if file doesn't exist
+if [ ! -f "$pkgfile" ]; then
+ if [ $create -eq 1 ]; then
+ zpm init $pkgfile
+ else
+ die $pkgfile does not exist
+ fi
+fi
+
+if [ "$idempotent" = 1 ]; then
+ idempotent='or ignore'
+fi
+
+package=$(zpm quote "$name")
+pkgver=$(zpm quote "$version")
+pkgrel=$(zpm quote "$release")
+
+ZPMDB=$localdb
+export ZPMDB
+
+if [ -z "$ZPMDB" ]; then
+ die "no local db"
+else
+ #echo "localdb = $ZPMDB"
+ true
+fi
+
+zpm test -v "$ZPMDB" || die "$ZPMDB is not a zpm database"
+
+# check if we're installing something already
+var=$(zpm list -f $localdb -s installing | wc -l)
+if [ $var -gt 0 ]; then
+ zpm list -v -f $localdb -s installing
+ die "already ($localdb) installing $var package(s)"
+fi
+# check if we're installing something already
+var=$(zpm list -f $localdb -s removing | wc -l)
+if [ $var -gt 0 ]; then
+ zpm list -v -f $localdb -s removing
+ die "already ($localdb) removing $var package(s)"
+fi
+var=$(zpm list -f $localdb -s updating | wc -l)
+if [ $var -gt 0 ]; then
+ zpm list -v -f $localdb -s updating
+ die "already ($localdb) updating $var package(s)"