script to check consistency between guc.h and postgresql.conf.sample

This script will ignore options that are listed in the
INTENTIONALLY_NOT_INCLUDED variable.

It expects to live in src/tools, but should be ok to move as long
as PATH_TO_GUC is updated.

Here's what it complains about right now:

fixbtree seems to be missing from postgresql.conf.sample
server_encoding seems to be missing from postgresql.conf.sample
session_authorization seems to be missing from postgresql.conf.sample

I don't know if those things should be ignored or not.

-ron

#!/bin/sh

## currently, this script makes a lot of assumptions:
## 1) location of guc.c and postgresql.conf.sample relative to script
## For postgresql.conf.sample
## 2) the valid config settings may be preceded by a '#', but NOT '# '
## 3) the valid config settings will be followed immediately by ' ='
## (at least one space preceding the '='
## For guc.c
## 4) the options have PGC_ on the same line as the option
## 5) the options have '{ ' on the same line as the option

## Problems
## 1) Don't know what to do with TRANSACTION ISOLATION LEVEL

## if an option is valid but shows up in only one file (guc.h or
## postgresql.conf.sample, it should be listed here so that it
## can be ignored
INTENTIONALLY_NOT_INCLUDED="pre_auth_delay lc_messages lc_monetary \
lc_time lc_numeric"

#self_path stolen from pg_ctl
self_path=`echo "$0" | sed 's,/[^/]*$,,'` # (dirname command is not portable)
PATH_TO_GUC="$self_path/../backend/utils/misc"

### What options are listed in postgresql.conf.sample, but don't appear
### in guc.h?

# grab everything that looks like a setting and convert it to lower case
SETTINGS=`grep ' =' $PATH_TO_GUC/postgresql.conf.sample | grep -v '^# ' | \
sed -e 's/^#//' | awk '{print $1}'`
SETTINGS=`echo "$SETTINGS" | tr 'A-Z' 'a-z'`

for i in $SETTINGS ; do
hidden=0
## it sure would be nice to replace this with an sql "not in" statement
for hidethis in $INTENTIONALLY_NOT_INCLUDED ; do
if [ "$i" == "$hidethis" ] ; then
hidden=1
fi
done
if [ "0" == "$hidden" ] ; then
grep -i $i $PATH_TO_GUC/guc.c > /dev/null;
if [ ! $? = 0 ] ; then
echo "$i seems to be missing from guc.c";
fi;
fi
done

### What options are listed in guc.h, but don't appear
### in postgresql.conf.sample?

# grab everything that looks like a setting and convert it to lower case

SETTINGS=`grep '{ .*PGC_' $PATH_TO_GUC/guc.c | awk '{print $2}' | \
sed -e 's/"//g' -e 's/,//'`
SETTINGS=`echo "$SETTINGS" | tr 'A-Z' 'a-z'`

for i in $SETTINGS ; do
hidden=0
for hidethis in $INTENTIONALLY_NOT_INCLUDED ; do
if [ "$i" == "$hidethis" ] ; then
hidden=1
fi
done
if [ "0" == "$hidden" ] ; then
grep -i $i $PATH_TO_GUC/postgresql.conf.sample > /dev/null;
if [ ! $? = 0 ] ; then
echo "$i seems to be missing from postgresql.conf.sample";
fi
fi
done