Added usher to run pwconv and grpconv if necessary

Makefile

@@ -14,7 +14,7 @@ URL = http://pkg-shadow.alioth.debian.org/
 DESC = This package includes the programs necessary to convert traditional \
 V7 UNIX password files to the SVR4 shadow password format and additional \
 tools to work with shadow passwords.
-SNAPVER = sr0
+SNAPVER = sr1
 
 ARCHIVE := $(PWD)/SRC/$(shell ls SRC|egrep '(bz2|gz|tar|xz)$$'|tail -1)
 TYPE := $(shell file -ib $(ARCHIVE)|cut -d';' -f1|tr -d '\n')

SNAP/usher

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+set -e
+
+case $1 in
+  preinst)
+    exit 0
+    ;;
+  postinst)
+    if [[ ${TARGET} ]]; then
+      if [ ! -f ${TARGET}/etc/shadow ]; then
+        chroot ${TARGET} pwconv
+      fi
+
+      if [ ! -f ${TARGET}/etc/gshadow ]; then
+        chroot ${TARGET} grpconv
+      fi
+    else
+      if [ ! -f /etc/shadow ]; then
+        pwconv
+      fi
+
+      if [ ! -f /etc/gshadow ]; then
+        grpconv
+      fi
+    fi
+    ;;
+  prerm)
+    exit 0
+    ;;
+  postrm)
+    exit 0
+    ;;
+esac