From 5132c40e6e8028924b3eb8d70477a2ef83394f5b Mon Sep 17 00:00:00 2001
From: Jesper Geertsen Jonsson <jesper.geertsen.jonsson@ericsson.com>
Date: Thu, 17 Mar 2016 13:09:51 +0100
Subject: IPOS model improvements to fix unwanted diffs.

---
 lib/oxidized/model/ipos.rb | 36 ++++++++++++++++++++++++++++++------
 1 file changed, 30 insertions(+), 6 deletions(-)

(limited to 'lib/oxidized')

diff --git a/lib/oxidized/model/ipos.rb b/lib/oxidized/model/ipos.rb
index 1a77807..5efd831 100644
--- a/lib/oxidized/model/ipos.rb
+++ b/lib/oxidized/model/ipos.rb
@@ -7,18 +7,43 @@ class IPOS < Oxidized::Model
   comment '! '
 
   cmd 'show chassis' do |cfg|
-    comment cfg
+    comment cfg.each_line.to_a[0..-2].join
   end
 
-  cmd 'show hardware detail' do |cfg|
-    comment cfg
+  cmd 'show hardware' do |cfg|
+    comment cfg.each_line.to_a[0..-2].join
   end
 
   cmd 'show release' do |cfg|
-    comment cfg
+    comment cfg.each_line.to_a[0..-2].join
   end
 
-  cmd 'show config'
+  cmd 'show configuration' do |cfg|
+    # SEOS regularly adds some odd line breaks in random places
+    # when showing the config, triggering changes.
+    cfg.gsub! "\r\n", "\n"
+
+    cfg = cfg.each_line.to_a
+
+    # Keeps the issued command commented but removes the uncommented "Building configuration..."
+    # and "Current configuration:" lines as well as the last prompt at the end.
+    cfg = cfg[4..-2].unshift comment cfg[0]
+
+    # Later IPOS releases add this line in addition to the usual "last changed" line.
+    # It's touched regularly (as often as multiple times per minute) by the OS without actual visible config changes.
+    cfg = cfg.reject { |line| line.match "Configuration last changed by system user" }
+
+    # Earlier IPOS releases lack the "changed by system user" line and instead overwrite
+    # the single "last changed by user" line. Because the line has a timestamp it will
+    # trigger constant changes if not removed. By doing so there will only be a single
+    # extra change trigged after an actual config change by a user but still have the
+    # real user.
+    cfg = cfg.reject { |line| line.match "Configuration last changed by user '%LICM%' at" }
+    cfg = cfg.reject { |line| line.match "Configuration last changed by user '<NO USER>' at" }
+    cfg = cfg.reject { |line| line.match "Configuration last changed by user '' at" }
+
+    cfg.join
+  end
 
   cfg :telnet do
     username /^login:/
@@ -34,4 +59,3 @@ class IPOS < Oxidized::Model
   end
 
 end
-
-- 
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