start script to do a 0.22 -> 0.23 transition. still needs work (UNTESTED).

diff --git a/src/transition_0.22_0.23 b/src/transition_0.22_0.23
new file mode 100755 (executable)
index 0000000..3328e8c
--- /dev/null
+++ b/src/transition_0.22_0.23
@@ -0,0 +1,69 @@
+#!/bin/bash
+
+# This is a post-install script for monkeysphere, to transition an old
+# (<=0.22) setup to the new (>0.22) setup
+
+SYSDATADIR=${MONKEYSPHERE_SYSDATADIR:-"/var/lib/monkeysphere"}
+
+MADATADIR="${SYSDATADIR}/authentication"
+MHDATADIR="${SYSDATADIR}/host"
+
+############################################################
+### transfer host setup
+
+if [ -d "$SYSDATADIR"/gnupg-host ] ; then
+
+    if [ -s "$SYSDATADIR"/ssh_host_rsa_key ] ; then
+
+       # This would be simple, but it would generate a new pgp key,
+       #and we don't want that, right?
+       #monkeysphere-host expert import_key "$SYSDATADIR"/ssh_host_rsa_key
+
+       # create host home
+       mkdir -p "${MHDATADIR}"
+       mkdir -p "${MHTMPDIR}"
+       mkdir -p "${GNUPGHOME_HOST}"
+       chmod 700 "${GNUPGHOME_HOST}"
+
+       # transfer the host secret key from the old home to the new
+       GNUPGHOME="$SYSDATADIR"/gnupg-host gpg --export-secret-keys \
+           GNUPGHOME="$MHDATADIR" gpg --import
+
+       # make sure the ssh_host_rsa_key.pub and ssh_host_rsa_key.pub.gpg
+       # files exist
+
+       # anything else?
+
+    fi
+
+    #rm -rf "$SYSDATADIR"/gnupg-host
+
+fi
+
+############################################################
+### transfer authentication setup
+
+# should we test for something else/better than the existence of this
+# directory to know that we should go through the setup?
+if [ -d "$SYSDATADIR"/gnupg-authentication ] ; then
+
+    # run the authentication setup
+    monkeysphere-authentication setup
+
+    # transfer certifiers
+    # FIXME: how?
+    # i think we'll need to run something like
+    # gpg_core_sphere_sig_transfer after transfering certifiers ltsigs
+
+    # do we need to do some sort of transfer of ownertrust?
+
+    # move the authorized_keys directory
+    mv "$SYSDATADIR"/authorized_keys "$MADATADIR"/
+
+    # do we need to transfer anything else?  running update-users will
+    # regenerate everything else in the sphere keyring, right?
+
+    #rm -rf "$SYSDATADIR"/gnupg-authentication
+
+fi
+