My Rails development environment is Windows-based, and my production environment is Linux-based.
我的Rails开发环境是基于windows的,我的生产环境是基于linux的。
It's possible that VirtualHost will be used. Assume that one filename needs to be referenced in the /public
folder with File.open('/tmp/abc.txt', 'r')
.
可能会使用虚拟主机。假设需要在/public文件夹中使用File.open('/tmp/abc)引用一个文件名。txt”、“r”)。
—but in Windows it should be C:\tmp\abc.txt
. How can I do a correct path join to handle the two different environments?
-在Windows中应该是C:\tmp\abc.txt。如何做一个正确的路径连接来处理两个不同的环境?
prefix_tmp_path = '/tmp/'
filename = "/#{rand(10)}.txt"
fullname = prefix_tmp_path + filename # /tmp//1.txt <- but I don't want a double //
And when prefix_tmp_path = "C:\tmp\"
I get C:\tmp\/1.txt
当prefix_tmp_path = "C:\tmp\"我得到C:\tmp\/1.txt
What is the correct way to handle both cases?
处理这两种情况的正确方法是什么?
2 个解决方案
#1
265
I recommend using File.join
我建议使用File.join
>> File.join("path", "to", "join")
=> "path/to/join"
#2
39
One thing to note. Ruby uses a "/" for file separator on all platforms, including Windows, so you don't actually need use different code for joining things together on different platforms. "C:/tmp/1.text" should work fine.
一件事需要注意。Ruby在所有平台(包括Windows)上都使用“/”作为文件分隔符,因此实际上不需要使用不同的代码将不同平台上的内容连接在一起。“C:/ tmp / 1。文本”可正常工作。
File.join() is your friend for joining paths together.
join()是将路径连接在一起的朋友。
prefix_tmp_path = 'C:/tmp'
filename = "#{rand(10)}.txt"
fullname = File.join(prefix_tmp_path, filename) # e.g., C:/tmp/3.txt
#1
265
I recommend using File.join
我建议使用File.join
>> File.join("path", "to", "join")
=> "path/to/join"
#2
39
One thing to note. Ruby uses a "/" for file separator on all platforms, including Windows, so you don't actually need use different code for joining things together on different platforms. "C:/tmp/1.text" should work fine.
一件事需要注意。Ruby在所有平台(包括Windows)上都使用“/”作为文件分隔符,因此实际上不需要使用不同的代码将不同平台上的内容连接在一起。“C:/ tmp / 1。文本”可正常工作。
File.join() is your friend for joining paths together.
join()是将路径连接在一起的朋友。
prefix_tmp_path = 'C:/tmp'
filename = "#{rand(10)}.txt"
fullname = File.join(prefix_tmp_path, filename) # e.g., C:/tmp/3.txt