Add new requirements for the server backend

Now that we're using DBIx::Class, we need several new modules.  Take
a first cut at documenting them in README.

Change-Id: I98e796091258633daaad4049d14bf3c5ea1e55fa
Reviewed-on: https://gerrit.stanford.edu/974
Reviewed-by: Russ Allbery <rra@stanford.edu>
Tested-by: Russ Allbery <rra@stanford.edu>

1 files changed, 21 insertions, 22 deletions

diff --git a/README b/README
index 691c37f..a264f2a 100644
--- a/README
+++ b/README
@@ -64,11 +64,17 @@ REQUIREMENTS
   The wallet client will build with either MIT Kerberos or Heimdal.
 
   The wallet server is written in Perl and requires Perl 5.6.0 or later.
-  It uses the Perl DBI layer to talk to a database, and therefore the DBI
-  module and a DBD module for the database it will use must be installed.
-  Currently, the server has only been tested against SQLite 3 and MySQL 5
-  and will probably not work fully with other database backends.  Porting
-  is welcome.
+  It uses DBIx::Class and DBI to talk to a database, and therefore the
+  DBIx::Class and DBI modules (and their dependencies) and a DBD module
+  for the database it will use must be installed.  The SQL::Translator
+  Perl module is also required for schema deployment and database
+  upgrades.  If the wallet server is used with a SQLite 3 database, the
+  Perl module DateTime::Format::SQLite should also be installed.
+
+  Currently, the server has only been tested against SQLite 3, MySQL 5,
+  and PostgreSQL, and prebuilt SQL files (for database upgrades) are only
+  provided for those servers.  It will probably not work fully with other
+  database backends.  Porting is welcome.
 
   The wallet server is intended to be run under remctld and use remctld to
   do authentication.  It can be ported to any other front-end, but doing
@@ -103,23 +109,16 @@ REQUIREMENTS
   to manage DNS), the Net::Remctl Perl module must be installed on the
   server.
 
-  To run the test suite, you must have Perl 5.8 or later and the Perl DBI
-  module installed.  You will also need a DBD module installed for the
-  database backend you want to use (currently, either DBD::SQLite or
-  DBD::mysql).  The other modules are available from CPAN and may be
-  available as part of your OS (many Linux distributions have them as
-  packages, for example).
-
-  To run the full test suite, additionally all of the above software
-  requirements must be met.  Tests requiring some bit of software that's
-  not installed should be skipped, but not all the permutations have been
-  checked.  The full test suite also requires the Test::Pod Perl module
-  (available from CPAN), that remctld be installed and available on the
-  user's path or in /usr/local/sbin or /usr/sbin, that test cases can run
-  services on and connect to port 14373 on 127.0.0.1, and that kinit and
-  either kvno or kgetcred (which come with Kerberos) be installed and
-  available on the user's path.  The full test suite also requires a local
-  keytab and some additional configuration.
+  To run the full test suite, all of the above software requirements must
+  be met.  Tests requiring some bit of software that's not installed
+  should be skipped, but not all the permutations have been checked.  The
+  full test suite also requires the Test::Pod Perl module (available from
+  CPAN), that remctld be installed and available on the user's path or in
+  /usr/local/sbin or /usr/sbin, that test cases can run services on and
+  connect to port 14373 on 127.0.0.1, and that kinit and either kvno or
+  kgetcred (which come with Kerberos) be installed and available on the
+  user's path.  The full test suite also requires a local keytab and some
+  additional configuration.
 
   To bootstrap from a Git checkout, or if you change the Automake files
   and need to regenerate Makefile.in, you will need Automake 1.11 or