From c00a99805c35817b63ec195a97e211464f8a1f04 Mon Sep 17 00:00:00 2001
From: Paul Duncan <pabs@pablotron.org>
Date: Wed, 16 Mar 2022 07:33:33 -0400
Subject: bin/cisa-sizes.rb: add utility script

---
 bin/cisa-sizes.rb | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100755 bin/cisa-sizes.rb

diff --git a/bin/cisa-sizes.rb b/bin/cisa-sizes.rb
new file mode 100755
index 0000000..88ec7d3
--- /dev/null
+++ b/bin/cisa-sizes.rb
@@ -0,0 +1,20 @@
+#!/usr/bin/env ruby
+
+#
+# cisa-sizes.rb: get maximum field lengths from compressed cisa
+# kev catalog.
+#
+
+require 'json'
+require 'zlib'
+
+# path to vulnerabilities
+PATH = File.join(__dir__, '../cisa/testdata/cisa-kevc-20220313.json.gz')
+
+# read vulns
+ROWS = JSON(Zlib::GzipReader.new(File.open(PATH)).read)['vulnerabilities']
+
+# get/print json-encoded maximum field lengths
+puts JSON(ROWS.each.with_object(Hash.new { |h, k| h[k] = 0 }) do |row, r|
+  row.each { |k, v| r[k] = v.size if v.size > r[k] }
+end)
-- 
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