From 19409f822c901b4935b07493d741d479fbc119a0 Mon Sep 17 00:00:00 2001
From: Benjamin Kellermann <Benjamin.Kellermann@gmx.de>
Date: Mon, 23 Nov 2009 15:58:49 +0100
Subject: started to implement undo, added flatten option

---
 log.rb | 23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

(limited to 'log.rb')

diff --git a/log.rb b/log.rb
index fe0d4f5..ca08b9c 100644
--- a/log.rb
+++ b/log.rb
@@ -78,10 +78,10 @@ class Log
 		@log << LogEntry.new(revision,timestamp,comment)
 		@log.sort!{|a,b| a.rev <=> b.rev}
 	end
-	def to_html(maxrev, middlerevision)
+	def to_html(notlinkrevision)
 		ret = "<table><tr><th>Version</th><th>Date</th><th>Comment</th></tr>"
-		self[((middlerevision-5)..(middlerevision+5))].each do |l|
-			ret += l.to_html(middlerevision != l.rev)
+		self.each do |l|
+			ret += l.to_html(notlinkrevision != l.rev)
 		end
 		ret += "</table>"
 		ret
@@ -95,6 +95,23 @@ class Log
 	def comment_matches(regex)
 		Log.new(@log.collect{|e| e if e.comment =~ regex}.compact)
 	end
+	def flatten
+		h = []
+		minrev = min.rev
+		rev = max.rev
+		while rev > minrev
+			elem = self[rev]
+			prevrev = elem.comment.scan(/^Reverted Poll to revision (\d*)$/).flatten[0]
+			if prevrev
+				rev = prevrev.to_i	
+			else
+				h << elem
+				rev += -1
+			end
+		end
+		h.sort!{|a,b| a.rev <=> b.rev}
+		Log.new(h)
+	end
 end
 
 if __FILE__ == $0
-- 
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