Add Special case: addition only, no truncation

Author: Kevin Paulisse

lib/octocatalog-diff/catalog-diff/display/text.rb

@@ -327,14 +327,17 @@ def self.make_trailing_whitespace_visible(string_in)
         # @param depth [Fixnum] Depth, for correct indentation
         # @param limit [Fixnum] Maximum string length
         # @param strip_diff [Boolean] Strip leading +/-/" "
-        # @return Array<String> Displayable result
+        # @return [Array<String>] Displayable result
         def self.diff_two_hashes_with_diffy(opts = {})
           depth = opts.fetch(:depth, 0)
           hash1 = opts.fetch(:hash1, {})
           hash2 = opts.fetch(:hash2, {})
           limit = opts[:limit]
           strip_diff = opts.fetch(:strip_diff, false)
 
+          # Special case: addition only, no truncation
+          return addition_only_no_truncation(depth, hash2, strip_diff) if hash1 == {} && limit.nil?
+
           json_old = stringify_for_diffy(hash1)
           json_new = stringify_for_diffy(hash2)
 
@@ -354,6 +357,32 @@ def self.diff_two_hashes_with_diffy(opts = {})
           end
         end
 
+        # Special case: addition only, no truncation
+        # @param depth [Fixnum] Depth, for correct indentation
+        # @param hash [Hash] Added object
+        # @param strip_diff [Boolean] Strip leading +/-/" "
+        # @return [Array<String>] Displayable result
+        def self.addition_only_no_truncation(depth, hash, strip_diff)
+          plus = strip_diff ? '' : '+ '
+          result = []
+
+          # Single line strings
+          hash.keys.sort.map do |key|
+            next if hash[key] =~ /\n/
+            result << left_pad(2 * depth + 2, [plus, key.inspect, ': ', hash[key].inspect].join('')).green
+          end
+
+          # Multi-line strings
+          hash.keys.sort.map do |key|
+            next if hash[key] !~ /\n/
+            result << left_pad(2 * depth + 2, [plus, key.inspect, ': >>>'].join('')).green
+            result.concat hash[key].split(/\n/).map(&:green)
+            result << '<<<'
+          end
+
+          result
+        end
+
         # Limit length of a string
         # @param str [String] String
         # @param limit [Fixnum] Limit (0=unlimited)