add errors to array and remove fail flag

build/validate_format.rb

 #!/usr/bin/env ruby
+
 auth_keys = ['apiKey', 'OAuth', 'X-Mashape-Key', 'No']
 punctuation = ['.', '?', '!']
 https_keys = ['Yes', 'No']
 args = ARGV
 filename = args[0]
-fail_flag = false
-File.foreach(filename).with_index do |line, line_num|
+$errors = []
+
+def add_error(line_num, message)
+    $errors.push("(L%03d) #{message}" % line_num)
+end
+
+File.foreach(filename).with_index do | line, line_num |
     line_num += 1
     if line.start_with?('|')
         # Skip table schema lines
@@ -17,39 +23,37 @@ File.foreach(filename).with_index do |line, line_num|
         # First character should be capitalized
         desc_val = values[2].lstrip.chop
         if !/[[:upper:]]/.match(desc_val[0])
-            puts "(#{line_num}) Invalid Description (first char not uppercase): #{desc_val}"
-            fail_flag = true
+            add_error(line_num, "Invalid Description (first char not uppercase): #{desc_val}")
         end
         # value should not be punctuated
         last_char = desc_val[desc_val.length-1]
         if punctuation.include?(last_char)
-            puts "(#{line_num}) Invalid Description (description should not end with \"#{last_char}\")"
-            fail_flag = true
+            add_error(line_num, "Invalid Description (description should not end with \"#{last_char}\")")
         end
         #################### AUTH ####################
         # Values should conform to valid options only
         auth_val = values[3].lstrip.chop.tr('``', '')
         if !auth_keys.include?(auth_val)
-            puts "(#{line_num}) Invalid Auth (not a valid option): #{auth_val}"
-            fail_flag = true
+            add_error(line_num, "Invalid Auth (not a valid option): #{auth_val}")
         end
         #################### HTTPS ###################
         # Values should be either "Yes" or "No"
         https_val = values[4].lstrip.chop
         if !https_keys.include?(https_val)
-            puts "(#{line_num}) Invalid HTTPS: (must use \"Yes\" or \"No\"): #{https_val}"
-            fail_flag = true
+            add_error(line_num, "(#{line_num}) Invalid HTTPS: (must use \"Yes\" or \"No\"): #{https_val}")
         end
         #################### LINK ####################
         # Url should be wrapped in "[Go!]" view
         link_val = values[5].lstrip.chop
         if !link_val.start_with?("[Go!](") || !link_val.end_with?(')')
-            puts "(#{line_num}) Invalid Link: (format should be \"[Go!](<LINK>)\"): #{link_val}"
-            fail_flag = true
+            add_error(line_num, "(#{line_num}) Invalid Link: (format should be \"[Go!](<LINK>)\"): #{link_val}")
         end
     end
 end
-if fail_flag
+if $errors.length > 0
+    $errors.each do | e |
+        puts e
+    end
     exit(1)
 else
     exit(0)