Move gollum back end to gollum-lib #647

2013-03-19 22:11:09 +00:00
parent fe706c184e
commit 1f79126b27
520 changed files with 36 additions and 5663 deletions
@@ -0,0 +1,92 @@
+module Precious
+  module Views
+    class Compare < Layout
+      include HasPage
+
+      attr_reader :page, :diff, :versions, :message
+
+      def title
+        "Comparison of #{@page.title}"
+      end
+
+      def before
+        @versions[0][0..6]
+      end
+
+      def after
+        @versions[1][0..6]
+      end
+
+      def lines
+        lines = []
+        @diff.diff.split("\n")[2..-1].each_with_index do |line, line_index|
+          lines << { :line  => line,
+                     :class => line_class(line),
+                     :ldln  => left_diff_line_number(0, line),
+                     :rdln  => right_diff_line_number(0, line) }
+        end if @diff
+        lines
+      end
+
+      def show_revert
+        !@message
+      end
+
+      # private
+
+      def line_class(line)
+        if line =~ /^@@/
+          'gc'
+        elsif line =~ /^\+/
+          'gi'
+        elsif line =~ /^\-/
+          'gd'
+        else
+          ''
+        end
+      end
+
+      @left_diff_line_number = nil
+      def left_diff_line_number(id, line)
+        if line =~ /^@@/
+          m, li = *line.match(/\-(\d+)/)
+          @left_diff_line_number = li.to_i
+          @current_line_number = @left_diff_line_number
+          ret = '...'
+        elsif line[0] == ?-
+          ret = @left_diff_line_number.to_s
+          @left_diff_line_number += 1
+          @current_line_number = @left_diff_line_number - 1
+        elsif line[0] == ?+
+          ret = ' '
+        else
+          ret = @left_diff_line_number.to_s
+          @left_diff_line_number += 1
+          @current_line_number = @left_diff_line_number - 1
+        end
+        ret
+      end
+
+      @right_diff_line_number = nil
+      def right_diff_line_number(id, line)
+        if line =~ /^@@/
+          m, ri = *line.match(/\+(\d+)/)
+          @right_diff_line_number = ri.to_i
+          @current_line_number = @right_diff_line_number
+          ret = '...'
+        elsif line[0] == ?-
+          ret = ' '
+        elsif line[0] == ?+
+          ret = @right_diff_line_number.to_s
+          @right_diff_line_number += 1
+          @current_line_number = @right_diff_line_number - 1
+        else
+          ret = @right_diff_line_number.to_s
+          @right_diff_line_number += 1
+          @current_line_number = @right_diff_line_number - 1
+        end
+        ret
+      end
+    end
+  end
+end