[__package_pkgng_freebsd] Bootstrap pkg if necessary

In a pristine FreeBSD base installation, pkg is really a bootstrapper utility,
in such cases the type used to fail instead of automatically bootstrapping pkg.

cdist/conf/type/__package_pkgng_freebsd/explorer/pkg_bootstrapped

@@ -0,0 +1,4 @@
+#!/bin/sh -e
+if pkg -N >/dev/null 2>&1; then
+	echo "YES"
+fi

cdist/conf/type/__package_pkgng_freebsd/explorer/pkg_version

@@ -21,6 +21,11 @@
 # Retrieve the status of a package - parsed dpkg output
 #
 
+if ! pkg -N >/dev/null 2>&1; then
+   # Nothing to do if pkg is not bootstrapped
+   exit
+fi
+
 if [ -f "$__object/parameter/name" ]; then
    name="$(cat "$__object/parameter/name")"
 else

cdist/conf/type/__package_pkgng_freebsd/gencode-remote

@@ -43,6 +43,7 @@ fi
 repo="$(cat "$__object/parameter/repo")"
 state="$(cat "$__object/parameter/state")"
 curr_version="$(cat "$__object/explorer/pkg_version")"
+pkg_bootstrapped="$(cat "$__object/explorer/pkg_bootstrapped")"
 add_cmd="pkg install -y"
 rm_cmd="pkg delete -y"
 upg_cmd="pkg upgrade -y"
@@ -73,6 +74,10 @@ execcmd(){
          ;;
    esac
 
+   if [ -z "${pkg_bootstrapped}" ]; then
+       echo "pkg bootstrap -y >/dev/null 2>&1"
+   fi
+
    echo "$_cmd >/dev/null 2>&1"   # Silence the output of the command
    echo "status=\$?"
    echo "if [ \"\$status\" -ne \"0\" ]; then"