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#!/usr/bin/perl -wT
#
# Create cdb file from flat alias file. DPC: 15/10/98.
# Args: source (may be relative or absolute)
# target (may be relative or absolute. Default = source)
# Generates: target.cdb
# target.tmp
#
# Little Perl script to convert flat file into CDB file. Two advantages over
# cdbmake-12 awk script that is distributed with CDB:
# 1) Handles 'dpc22:dpc22@hermes' as well as 'dpc22 dpc22@hermes'
# 2) Perl works with arbitrary length strings: awk chokes at 1,024 chars
#
# Cambridge: hermes/src/admin/mkcdb,v 1.9 2005/02/15 18:14:12 fanf2 Exp
use strict;
BEGIN { pop @INC if $INC[-1] eq '.' };
$ENV{'PATH'} = "";
umask(022);
my $CDB = '/opt/cdb/bin/cdbmake';
my $prog = $0;
$prog =~ s|(.*/)?([^/]+)|$2|;
my $source;
my $target;
if (@ARGV == 1) {
$source = shift(@ARGV);
$target = $source;
} elsif (@ARGV == 2) {
$source = shift(@ARGV);
$target = shift(@ARGV);
} else {
die("$prog: usage: <source> [<target>]\n");
}
# trust the invoker ?!
$source =~ /(.*)/;
$source = $1;
$target =~ /(.*)/;
$target = $1;
open(SOURCE, "< ${source}")
or die("$prog: open < $source: $!\n");
open(PIPE, "| $CDB $target.cdb $target.tmp")
or die("$prog: open | $CDB $target: $!\n");
sub add_item ($$) {
my $key = shift;
my $val = shift;
printf PIPE ("+%d,%d:%s->%s\n", length($key), length($val), $key, $val);
}
sub add_line ($) {
my $line = shift;
if ($line =~ /^([^\s:]+)\s*:\s*(.*)$/s) { # key : values
add_item($1,$2);
return;
}
if ($line =~ /^(\S+)\s+(.*)$/s) { # key: values
add_item($1,$2);
return;
}
if ($line =~ /^(\S+)$/s) { # key (empty value)
add_item($1,'');
return;
}
warn "$prog: unrecognized item: $line";
}
my $data;
while(<SOURCE>) {
next if /^#/ or /^\s*$/;
m/^(\s*)(\S.*)\s+$/s;
if (length($1) == 0) {
add_line($data) if defined $data;
$data = $2;
} else {
$data .= " $2";
}
}
add_line($data) if defined $data;
print PIPE "\n";
close(SOURCE)
or die("$prog: close < $source: $!\n");
close(PIPE)
or die($! ? "$prog: close | $CDB $target: $!\n"
: "$prog: close | $CDB $target: exited $?\n");
exit 0;
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