1 files changed, 46 insertions, 0 deletions
diff --git a/src/backend/utils/generate-errcodes.pl b/src/backend/utils/generate-errcodes.pl
new file mode 100644
index 0000000..c5cdd38
--- /dev/null
+++ b/src/backend/utils/generate-errcodes.pl
@@ -0,0 +1,46 @@
+#!/usr/bin/perl
+#
+# Generate the errcodes.h header from errcodes.txt
+# Copyright (c) 2000-2021, PostgreSQL Global Development Group
+
+use strict;
+use warnings;
+
+print
+  "/* autogenerated from src/backend/utils/errcodes.txt, do not edit */\n";
+print "/* there is deliberately not an #ifndef ERRCODES_H here */\n";
+
+open my $errcodes, '<', $ARGV[0] or die;
+
+while (<$errcodes>)
+{
+	chomp;
+
+	# Skip comments
+	next if /^#/;
+	next if /^\s*$/;
+
+	# Emit a comment for each section header
+	if (/^Section:(.*)/)
+	{
+		my $header = $1;
+		$header =~ s/^\s+//;
+		print "\n/* $header */\n";
+		next;
+	}
+
+	die "unable to parse errcodes.txt"
+	  unless /^([^\s]{5})\s+[EWS]\s+([^\s]+)/;
+
+	(my $sqlstate, my $errcode_macro) = ($1, $2);
+
+	# Split the sqlstate letters
+	$sqlstate = join ",", split "", $sqlstate;
+
+	# And quote them
+	$sqlstate =~ s/([^,])/'$1'/g;
+
+	print "#define $errcode_macro MAKE_SQLSTATE($sqlstate)\n";
+}
+
+close $errcodes;