Question

我刚刚下载了使用Paperclip和JCrop的RJCrop from github。我尝试在我的Linux VPS上运行它，它运行得很好，但是当我在我的开发Windows Vista x64机器上运行相同的项目时，我得到了这个例外。

[paperclip] identify -format %wx%h 
'C:/Users/darth/AppData/Local/Temp/stream,3420,0.png[0]'

[paperclip] An error was received while processing: 
#<Paperclip::NotIdentifiedByImageMagickError: 
C:/Users/darth/AppData/Local/Temp/stream,3420,0.png 
is not recognized by the 'identify' command.>

[paperclip] identify -format %wx%h 
'C:/Users/darth/AppData/Local/Temp/stream,3420,0.png[0]'

[paperclip] An error was received while processing: 
#<Paperclip::NotIdentifiedByImageMagickError: 
C:/Users/darth/AppData/Local/Temp/stream,3420,0.png 
is not recognized by the 'identify' command.>

识别是在我的路径中

C:\>identify -versrubion
Version: ImageMagick 6.6.5-9 2010-11-15 Q16 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2010 ImageMagick Studio LLC
Features: OpenMP

我还添加了

Paperclip.options[:command_path] = File.join("c:", "ImageMagick")

配置到environments/development.rb，但没有帮助。我正在运行Ruby 1.9.2p0。

Answer 1

我发现了这个问题。

def shell_quote(string)
  return "" if string.nil? or string.blank?
  if self.class.unix?
    string.split("'").map{|m| "'#{m}'" }.join("\\'")
  else
    %{"#{string}"}
  end
end

unix?方法定义为

def self.unix?
  File.exist?("/dev/null")
end

然而安装Cygwin时返回true，即使在常规cmd中运行（至少对我而言）。所以我只是重写它以返回false并且它工作正常。我还将此问题提交给paperclip on github

Paperclip在Windows上无法使用ImageMagick

1 个答案: