From a3bc062952ca90e66ba2c66f1904de556b6872c6 Mon Sep 17 00:00:00 2001
From: Henrik Levkowetz <henrik@levkowetz.com>
Date: Sun, 7 Jun 2020 11:45:47 +0000
Subject: [PATCH] Added cleanout of local tables missing from db dump (assuming
 they have been created by migrations) and added new switches --no-load and
 --no-zap to docker/updatedb  - Legacy-Id: 17924

---
 docker/updatedb | 27 +++++++++++++++++++--------
 1 file changed, 19 insertions(+), 8 deletions(-)

diff --git a/docker/updatedb b/docker/updatedb
index 569d86d57..af7bcdb30 100755
--- a/docker/updatedb
+++ b/docker/updatedb
@@ -1,4 +1,5 @@
 #!/bin/bash
+# -*- indent-with-tabs: 1 -*-
 
 version=0.10
 program=${0##*/}
@@ -69,11 +70,12 @@ trap 'echo "$program($LINENO): Command failed with error code $? ([$$] $0 $*)";
 # Option parsing
 
 # Options
-shortopts=DhqvV
-longopts=no-download,help,quiet,verbose,version
+shortopts=DLZhqvV
+longopts=no-download,no-load,no-zap,help,quiet,verbose,version
 
 LOAD=1
 DOWNLOAD=1
+DROP=1
 QUIET=""
 
 if   [ "$(uname)" = "Linux" ]; then
@@ -91,12 +93,13 @@ fi
 
 while true ; do
     case "$1" in
-	-d| --download)	LOAD="";;	# Only download
-	-D| --no-download)	DOWNLOAD="";;	# Don't download, use existing file
-	-h| --help)	usage; exit;;		# Show this help, then exit
-	-q| --quiet)	QUIET="-q";;            # Don't show progress
-	-v| --verbose)	VERBOSE=1;;		# Be more talkative
-	-V| --version)	version; exit;;		# Show program version, then exit
+	-D| --no-download)	DOWNLOAD="";;	#Don't download, use existing file
+	-L| --no-load)	LOAD=""; ;;		#	Don't load the database
+	-Z| --no-zap)	DROP="";;		#	Don't drop new tables
+	-h| --help)	usage; exit;;		#	Show this help, then exit
+	-q| --quiet)	QUIET="-q";;		#	Don't show progress
+	-v| --verbose)	VERBOSE=1;;		#	Be more talkative
+	-V| --version)	version; exit;;		#	Show program version, then exit
 	--)		shift; break;;
 	*) die "Internal error, inconsistent option specification: '$1'";;
     esac
@@ -143,5 +146,13 @@ if [ "$LOAD" ]; then
             | sed -e 's/ENGINE=MyISAM/ENGINE=InnoDB/' \
             | $parent/ietf/manage.py dbshell
     fi
+
 fi
 
+if [ "$DROP" ]; then
+    echo "Dropping tables not in the dump (so migrations can succeed) ..."
+    diff <(zcat $DATADIR/ietf_utf8.sql.gz | grep '^DROP TABLE IF EXISTS' | tr -d '`;' | field 5) \
+         <($parent/ietf/manage.py dbshell <<< 'show tables;' | tail -n +2) \
+	   | grep '^>' | awk '{print "drop table if exists", $2, ";";}' \
+           | tee /dev/stderr | $parent/ietf/manage.py dbshell
+fi
\ No newline at end of file