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postgresql/src/backend/catalog/genbki.sh

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#! /bin/sh
#-------------------------------------------------------------------------
#
# genbki.sh--
# shell script which generates .bki files from specially formatted .h
# files. These .bki files are used to initialize the postgres template
# database.
#
# Copyright (c) 1994, Regents of the University of California
#
#
# IDENTIFICATION
# $Header: /cvsroot/pgsql/src/backend/catalog/Attic/genbki.sh,v 1.16 2000/07/09 13:16:12 petere Exp $
#
# NOTES
# non-essential whitespace is removed from the generated file.
# if this is ever a problem, then the sed script at the very
# end can be changed into another awk script or something smarter..
#
#-------------------------------------------------------------------------
: ${AWK='awk'}
: ${CPP='cc -E'}
CMDNAME=`basename $0`
BKIOPTS=
INCLUDE_DIR=
OUTPUT_PREFIX=
INFILES=
#
# Process command line switches.
#
while [ $# -gt 0 ]
do
case $1 in
-D)
BKIOPTS="$BKIOPTS -D$2"
shift;;
-D*)
BKIOPTS="$BKIOPTS $1"
;;
-I)
INCLUDE_DIR="$2"
shift;;
-I*)
INCLUDE_DIR=`echo $1 | sed -e 's/^-I//'`
;;
-o)
OUTPUT_PREFIX="$2"
shift;;
-o*)
OUTPUT_PREFIX=`echo $1 | sed -e 's/^-o//'`
;;
--help)
echo "$CMDNAME generates system catalog bootstrapping files."
echo
echo "Usage:"
echo " $CMDNAME [ -D define [...] ] [ -I dir ] [ -o prefix ]"
echo
echo "Options:"
echo " -I path to postgres_ext.h and config.h files"
echo " -o prefix of output files"
echo
echo "The environment variables CPP and AWK determine which C"
echo "preprocessor and Awk program to use. The defaults are"
echo "\`cc -E' and \`awk'."
echo
echo "Report bugs to <pgsql-bugs@postgresql.org>."
exit 0
;;
-*)
echo "$CMDNAME: invalid option: $1"
exit 1
;;
*)
INFILES="$INFILES $1"
;;
esac
shift
done
if [ x"$INFILES" = x"" ] ; then
echo "$CMDNAME: no input files" 1>&2
exit 1
fi
if [ x"$OUTPUT_PREFIX" = x"" ] ; then
echo "$CMDNAME: no output prefix specified" 1>&2
exit 1
fi
if [ x"$INCLUDE_DIR" = x"" ] ; then
echo "$CMDNAME: path to include directory unknown" 1>&2
exit 1
fi
if [ x"$TMPDIR" = x"" ] ; then
TMPDIR=/tmp
fi
TMPFILE="$TMPDIR/genbkitmp.c"
trap "rm -f $TMPFILE" 0 1 2 3 15
# clear output files
> ${OUTPUT_PREFIX}.bki
> ${OUTPUT_PREFIX}.description
# Get NAMEDATALEN from postgres_ext.h
NAMEDATALEN=`grep '#define[ ]*NAMEDATALEN' $INCLUDE_DIR/postgres_ext.h | awk '{ print $3 }'`
# Get INDEX_MAX_KEYS from config.h (who needs consistency?)
INDEXMAXKEYS=`grep '#define[ ]*INDEX_MAX_KEYS' $INCLUDE_DIR/config.h | awk '{ print $3 }'`
# NOTE: we assume here that FUNC_MAX_ARGS has the same value as INDEX_MAX_KEYS,
# and don't read it separately from config.h. This is OK because both of them
# must be equal to the length of oidvector.
INDEXMAXKEYS2=`expr $INDEXMAXKEYS '*' 2`
INDEXMAXKEYS4=`expr $INDEXMAXKEYS '*' 4`
# ----------------
# strip comments and trash from .h before we generate
# the .bki file...
# ----------------
# also, change Oid to oid. -- AY 8/94.
# also, change NameData to name. -- jolly 8/21/95.
# put multi-line start/end comments on a separate line
#
cat $INFILES | \
sed -e 's;/\*.*\*/;;g' \
-e 's;/\*;\
/*\
;g' \
-e 's;\*/;\
*/\
;g' | # we must run a new sed here to see the newlines we added
sed -e "s/;[ ]*$//g" \
-e "s/^[ ]*//" \
-e "s/[ ]Oid/\ oid/g" \
-e "s/[ ]NameData/\ name/g" \
-e "s/^Oid/oid/g" \
-e "s/^NameData/\name/g" \
-e "s/(NameData/(name/g" \
-e "s/(Oid/(oid/g" \
-e "s/NAMEDATALEN/$NAMEDATALEN/g" \
-e "s/INDEX_MAX_KEYS\*2/$INDEXMAXKEYS2/g" \
-e "s/INDEX_MAX_KEYS\*4/$INDEXMAXKEYS4/g" \
-e "s/INDEX_MAX_KEYS/$INDEXMAXKEYS/g" \
-e "s/FUNC_MAX_ARGS\*2/$INDEXMAXKEYS2/g" \
-e "s/FUNC_MAX_ARGS\*4/$INDEXMAXKEYS4/g" \
-e "s/FUNC_MAX_ARGS/$INDEXMAXKEYS/g" \
| $AWK '
# ----------------
# now use awk to process remaining .h file..
#
# nc is the number of catalogs
# inside is a variable set to 1 when we are scanning the
# contents of a catalog definition.
# inserting_data is a flag indicating when we are processing DATA lines.
# (i.e. have a relation open and need to close it)
# ----------------
BEGIN {
inside = 0;
raw = 0;
bootstrap = 0;
nc = 0;
reln_open = 0;
comment_level = 0;
}
# ----------------
# Anything in a /* .. */ block should be ignored.
# Blank lines also go.
# Note that any /* */ comment on a line by itself was removed from the line
# by the sed above.
# ----------------
/^\/\*/ { comment_level += 1; next; }
/^\*\// { comment_level -= 1; next; }
comment_level > 0 { next; }
/^[ ]*$/ { next; }
# ----------------
# anything in a BKI_BEGIN .. BKI_END block should be passed
# along without interpretation.
# ----------------
/^BKI_BEGIN/ { raw = 1; next; }
/^BKI_END/ { raw = 0; next; }
raw == 1 { print; next; }
# ----------------
# DATA() statements should get passed right through after
# stripping off the DATA( and the ) on the end.
# ----------------
/^DATA\(/ {
data = substr($0, 6, length($0) - 6);
print data;
nf = 1;
oid = 0;
while (nf <= NF-3)
{
if ($nf == "OID" && $(nf+1) == "=")
{
oid = $(nf+2);
break;
}
nf++;
}
next;
}
/^DESCR\(/ {
if (oid != 0)
{
data = substr($0, 8, length($0) - 9);
if (data != "")
printf "%d %s\n", oid, data >>descriptionfile;
}
next;
}
/^DECLARE_INDEX\(/ {
# ----
# end any prior catalog data insertions before starting a define index
# ----
if (reln_open == 1) {
# print "show";
print "close " catalog;
reln_open = 0;
}
data = substr($0, 15, length($0) - 15);
print "declare index " data
}
/^DECLARE_UNIQUE_INDEX\(/ {
# ----
# end any prior catalog data insertions before starting a define unique index
# ----
if (reln_open == 1) {
# print "show";
print "close " catalog;
reln_open = 0;
}
data = substr($0, 22, length($0) - 22);
print "declare unique index " data
}
/^BUILD_INDICES/ { print "build indices"; }
# ----------------
# CATALOG() definitions take some more work.
# ----------------
/^CATALOG\(/ {
# ----
# end any prior catalog data insertions before starting a new one..
# ----
if (reln_open == 1) {
# print "show";
print "close " catalog;
reln_open = 0;
}
# ----
# get the name of the new catalog
# ----
pos = index($1,")");
catalog = substr($1,9,pos-9);
if ($0 ~ /BOOTSTRAP/) {
bootstrap = 1;
}
i = 1;
inside = 1;
nc++;
next;
}
# ----------------
# process the contents of the catalog definition
#
# attname[ x ] contains the attribute name for attribute x
# atttype[ x ] contains the attribute type fot attribute x
# ----------------
inside == 1 {
# ----
# ignore a leading brace line..
# ----
if ($1 ~ /\{/)
next;
# ----
# if this is the last line, then output the bki catalog stuff.
# ----
if ($1 ~ /}/) {
if (bootstrap) {
print "create bootstrap " catalog;
} else {
print "create " catalog;
}
print "\t(";
for (j=1; j<i-1; j++) {
print "\t " attname[ j ] " = " atttype[ j ] " ,";
}
print "\t " attname[ j ] " = " atttype[ j ] ;
print "\t)";
if (! bootstrap) {
print "open " catalog;
}
i = 1;
reln_open = 1;
inside = 0;
bootstrap = 0;
next;
}
# ----
# if we are inside the catalog definition, then keep sucking up
# attibute names and types
# ----
if ($2 ~ /\[.*\]/) { # array attribute
idlen = index($2,"[") - 1;
atttype[ i ] = $1 "[]"; # variable-length only..
attname[ i ] = substr($2,1,idlen);
} else {
atttype[ i ] = $1;
attname[ i ] = $2;
}
i++;
next;
}
END {
if (reln_open == 1) {
# print "show";
print "close " catalog;
reln_open = 0;
}
}
' "descriptionfile=${OUTPUT_PREFIX}.description" > $TMPFILE || exit
$CPP $BKIOPTS $TMPFILE | \
sed -e '/^[ ]*$/d' \
-e 's/[ ][ ]*/ /g' > ${OUTPUT_PREFIX}.bki || exit
exit 0
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