From fce45e26f593b79fd4953c1cb8ce66fd6848d83a Mon Sep 17 00:00:00 2001
From: Martin Winkler <efelon@winklerfamilie.eu>
Date: Sun, 27 Dec 2020 00:01:42 +0100
Subject: [PATCH] New step to debloat postgres database

---
 seqs/matrix.sh | 57 ++++++++++++++++++++++++++++++++++++++------------
 1 file changed, 44 insertions(+), 13 deletions(-)

diff --git a/seqs/matrix.sh b/seqs/matrix.sh
index 178d3fa..8d8412f 100755
--- a/seqs/matrix.sh
+++ b/seqs/matrix.sh
@@ -6,6 +6,7 @@ toolDeps+=" jq" # used as helper for api access
 toolDepsRaspi="ilibopenjp2-7 libtiff5"
 toolUser="synapse"
 toolGroup="synapse"
+toolServiceName="matrix-synapse"
 synapseHashTool="env/bin/hash_password"
 toolUrlLocal="http://localhost:8008"
 # Filled by configuration
@@ -121,10 +122,10 @@ step_6() {
   local localService=`eval "echo \"$toolService\""`
   addConf -c "$localService" "$toolServiceLoc"
   exe systemctl daemon-reload
-  exe systemctl enable matrix-synapse.service
-  exe service matrix-synapse start
+  exe systemctl enable ${toolServiceName}.service
+  exe service ${toolServiceName} start
 }
-toolServiceLoc="/etc/systemd/system/matrix-synapse.service"
+toolServiceLoc="/etc/systemd/system/${toolServiceName}.service"
 toolService="[Unit]
 Description=Matrix Synapse service
 After=network.target postgresql.service
@@ -169,10 +170,10 @@ step_10() {
   step version
 }
 
-step_12_info() { echo "Restart $toolName systemd service"; }
+step_12_info() { echo "Restart $toolName systemd service"; echo; }
 step_12_alias() { ALIAS="restart"; }
 step_12() {
-  exe service matrix-synapse restart
+  exe service ${toolServiceName} restart
 }
 
 step_14_info() { echo "Show $toolName version running at [IP]:8008"; }
@@ -411,18 +412,48 @@ postDataDeleteRoom()
 EOF
 }
 
-step_30_info() { echo "Drop postgres database for $toolName"; }
-step_30_alias() { ALIAS="dropdb"; }
+step_30_info() { echo "Debloat postgres [DATABASE]"; echo; }
+step_30_alias() { ALIAS="debloat"; }
 step_30() {
+  shift
+  local pgVerboseReId=" (VERBOSE) "
+  local pgVerboseVac=" VERBOSE"
+  
+  if [ $VERBOSE == 0 ]; then
+    pgVerboseReId=" "
+    pgVerboseVac=""
+  fi
+  
+  if [ -z $1 ]; then
+    readDatabaseInfos
+  else
+    postgresDb="$1"
+  fi
+
+  echo " [I] Stopping ${toolServiceName}"
+  exe service ${toolServiceName} stop
+  endReturn -o $? "Couldn't stop ${toolServiceName}. Stopping debloat."
+
+  exe cd ~postgres 
+  exe su -c "psql -d ${postgresDb} -c \"REINDEX${pgVerboseReId}DATABASE ${postgresDb};\"" - postgres
+  exe su -c "psql -c \"VACUUM FULL${pgVerboseVac};\"" - postgres
+
+  echo -e "\n [I] Starting ${toolServiceName}"
+  exe service ${toolServiceName} start
+}
+
+step_50_info() { echo "Drop postgres database for $toolName"; }
+step_50_alias() { ALIAS="dropdb"; }
+step_50() {
   readDatabaseInfos
 
   exe cd ~postgres 
   exe su -c "psql -c \"DROP DATABASE ${postgresDb};\"" - postgres
 }
 
-step_32_info() { echo "Backup postgres database"; }
-step_32_alias() { ALIAS="backupdb"; }
-step_32() {
+step_52_info() { echo "Backup postgres database"; }
+step_52_alias() { ALIAS="backupdb"; }
+step_52() {
   local DELYEAR=$(($(date +%Y)-2))
   if [ ! -s ~/.pgpass ] ; then
     echo " [I] For unattended backup please define ~/.pgpass containing credentials"
@@ -435,9 +466,9 @@ step_32() {
 toolDbBackupFolder=/root/backupdb
 
 
-step_34_info() { echo "Postgres database restore"; }
-step_34_alias() { ALIAS="restoredb"; }
-step_34() {
+step_54_info() { echo "Postgres database restore"; }
+step_54_alias() { ALIAS="restoredb"; }
+step_54() {
   echo " [I] Postgres database restore procedure"
   echo "1. Create a empty postgres database first (step 4)"
   echo "2. psql -h <host> -U <database user> -d <database name> -W -f <sql dump file>"