use unicode, check db exist

debian/changelog

@@ -4,6 +4,8 @@ gitlab (8.5.8+dfsg-3) UNRELEASED; urgency=medium
   * Symlink 'shared' to /var/lib/gitlab instead of 'shared/cache'
     - gitlab expects everything inside shared to be in the same file system.
   * Use embedded copy of fuzzaldrin-plus (See #814871 for more details)
+  * Bring back db check in postinst (initialize the db only if it is empty)
+  * Choose unicode for db encoding (fixes wiki creation error)
 
  -- Pirate Praveen <praveen@debian.org>  Sun, 03 Apr 2016 17:41:28 +0530
 

debian/postinst

@@ -126,7 +126,7 @@ case "$1" in
 
     echo "Create database if not present"
     if ! su postgres -s /bin/sh -c "psql  gitlab_production -c ''"; then
-      su postgres -c 'createdb gitlab_production'
+      su postgres -c 'createdb -E unicode -T template0 gitlab_production'
     fi
 
     # Adjust database privileges

debian/rake-tasks.sh

@@ -17,12 +17,17 @@ if ! [ -f "${gitlab_app_root}/config/secrets.yml" ]; then
   echo ${gitlab_app_root} > ${gitlab_app_root}/.secret
   }
 fi
-echo "Initializing database..."
-su ${gitlab_user} -s /bin/sh -c 'bundle exec rake db:schema:load'
-su ${gitlab_user} -s /bin/sh -c 'bundle exec rake db:seed_fu'
-su ${gitlab_user} -s /bin/sh -c 'bundle exec rake gitlab:shell:install \
-REDIS_URL=redis://localhost:6379 \
-SHELL_ROOT_PATH=/usr/share/gitlab-shell RAILS_ENV=production'
+if [ "$(LANG=C su postgres -c "psql gitlab_production -c \"\d\"")" = \
+"No relations found." ]; then
+  echo "Initializing database..."
+  su ${gitlab_user} -s /bin/sh -c 'bundle exec rake db:schema:load'
+  su ${gitlab_user} -s /bin/sh -c 'bundle exec rake db:seed_fu'
+  su ${gitlab_user} -s /bin/sh -c 'bundle exec rake gitlab:shell:install \
+  REDIS_URL=redis://localhost:6379 \
+  SHELL_ROOT_PATH=/usr/share/gitlab-shell RAILS_ENV=production'
+else
+  echo "gitlab_production database is not empty, skipping gitlab setup"
+fi
 
 echo "Precompiling assets..."
 su ${gitlab_user} -s /bin/sh -c 'bundle exec rake assets:precompile RAILS_ENV=production'