Add postinstall

.pkgr.yml

@@ -1,2 +1,6 @@
 addons:
   - mysql
+targets:
+  debian-7:
+after_install: packaging/debian/postinst
+

packaging/debian/postinst

@@ -0,0 +1,36 @@
+#!/bin/sh
+
+set -ex
+
+# summary of how this script can be called:
+#        * <postinst> `configure' <most-recently-configured-version>
+#        * <old-postinst> `abort-upgrade' <new version>
+#        * <conflictor's-postinst> `abort-remove' `in-favour' <package>
+#          <new-version>
+#        * <postinst> `abort-remove'
+#        * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
+#          <failed-install-package> <version> `removing'
+#          <conflicting-package> <version>
+# for details, see http://www.debian.org/doc/debian-policy/ or
+# the debian-policy package
+
+case "$1" in
+
+  configure)
+    rake_commands="db:migrate"
+    if [ "$2" = "" ]; then
+      rake_commands="${rake_commands} db:seed"
+    fi
+    rails-mysql-app run rake ${rake_commands}
+  ;;
+
+  abort-upgrade|abort-remove|abort-deconfigure)
+    exit 0
+  ;;
+
+  *)
+    echo "postinst called with unknown argument \`$1'" >&2
+    exit 1
+  ;;
+esac
+