Install pgroonga in development and (optionally) in prod.

This is preliminary work towards being able to merge support for using
the pgroonga full-text search solution for all languages in Zulip.

puppet/zulip/manifests/postgres_appdb_base.pp

@@ -66,4 +66,14 @@ class zulip::postgres_appdb_base {
     source => "puppet:///modules/zulip/nagios_plugins/zulip_postgres_appdb",
   }
 
+  $pgroonga = zulipconf("machine", "pgroonga", "")
+  if $pgroonga != "" {
+    apt::ppa {'ppa:groonga/ppa':
+      before => Package["postgresql-${zulip::base::postgres_version}-pgroonga"],
+    }
+    # Needed for optional our full text search system
+    package{"postgresql-${zulip::base::postgres_version}-pgroonga":
+      ensure => "installed",
+    }
+  }
 }

scripts/lib/setup-apt-repo

@@ -2,7 +2,7 @@
 set -x
 set -x
 
-apt-get install -y lsb-release
+apt-get install -y lsb-release software-properties-common
 
 # First, install any updates from the apt repo that may be needed
 wget -qO - https://zulip.com/dist/keys/zulip-ppa.asc | apt-key add -

tools/provision.py

@@ -95,10 +95,12 @@ APT_DEPENDENCIES = {
     "trusty": UBUNTU_COMMON_APT_DEPENDENCIES + [
         "postgresql-9.3",
         "postgresql-9.3-tsearch-extras",
+        "postgresql-9.3-pgroonga",
     ],
     "xenial": UBUNTU_COMMON_APT_DEPENDENCIES + [
         "postgresql-9.5",
         "postgresql-9.5-tsearch-extras",
+        "postgresql-9.5-pgroonga",
     ],
 }
 
@@ -160,6 +162,8 @@ def main():
     os.chdir(ZULIP_PATH)
 
     run(["sudo", "./scripts/lib/setup-apt-repo"])
+    # Add groonga repository to get the pgroonga packages
+    run(["sudo", "add-apt-repository", "-y", "ppa:groonga/ppa"])
     run(["sudo", "apt-get", "update"])
     run(["sudo", "apt-get", "-y", "install", "--no-install-recommends"] + APT_DEPENDENCIES[codename])