Make sure it will render image when ImageMagick stderr have warning messages. (fix #26)

CHANGELOG.md

@@ -1,4 +1,10 @@
+0.5.1
+-----
+
+- Make sure it will render image when ImageMagick stderr have warning messages. (#26)
+
 0.5.0
+-----
 
 - Fix cache with Rails 5.
 

Gemfile.lock

@@ -1,7 +1,8 @@
 PATH
   remote: .
   specs:
-    rucaptcha (0.5.0)
+    rucaptcha (0.5.1)
+      railties (>= 3.2)
 
 GEM
   remote: https://rubygems.org/
@@ -131,4 +132,4 @@ DEPENDENCIES
   rucaptcha!
 
 BUNDLED WITH
-   1.12.4
+   1.12.5

lib/rucaptcha/captcha.rb

@@ -71,17 +71,21 @@ module RuCaptcha
         if Gem.win_platform?
           png_file_path = Rails.root.join('tmp', 'cache', "#{code}.png")
           command = "convert -size #{size} xc:White -gravity Center -weight 12 -pointsize 20 -annotate 0 \"#{code}\" -trim #{png_file_path}"
-          require 'open3'
-          _stdout_str, stderr_str = Open3.capture3(command)
-          raise "RuCaptcha: #{stderr_str.strip}" if stderr_str.present?
+          out, err, _st = Open3.capture3(command)
+          warn "  RuCaptcha #{err.strip}" if err.present?
           png_file_path
         else
           command.strip!
           out, err, _st = Open3.capture3(command)
-          raise "RuCaptcha: #{err.strip}" if err.present?
+          warn "  RuCaptcha #{err.strip}" if err.present?
           out
         end
       end
+
+      def warn(msg)
+        msg = "  RuCaptcha #{msg}"
+        Rails.logger.error(msg)
+      end
     end
   end
 end

lib/rucaptcha/version.rb

@@ -1,3 +1,3 @@
 module RuCaptcha
-  VERSION = '0.5.0'
+  VERSION = '0.5.1'
 end

rucaptcha.gemspec

@@ -12,4 +12,6 @@ Gem::Specification.new do |s|
   s.homepage      = 'https://github.com/huacnlee/rucaptcha'
   s.require_paths = ['lib']
   s.summary       = 'This is a Captcha gem for Rails Application. It run ImageMagick command to draw Captcha image.'
+
+  s.add_dependency 'railties', '>= 3.2'
 end