git-checkout二进制文件的旧版本，而不会过度工作副本

Question

我有一个二进制文件文件（foo.bin）在我的git仓库中。

如何在不覆盖工作副本中的文件的情况下签出此文件的旧版本？

喜欢的东西：

git checkout tag-name -- foo.bin > foo-tag-name.bin 

Answer 1

你的命令几乎是正确的：

git show tag-name:foo.bin > foo-tag-name.bin 

git help show还给出了另一个例子：

git show next~10:Documentation/README 
     Shows the contents of the file Documentation/README as they were 
     current in the 10th last commit of the branch next. 

这句法中git help gitrevisions描述：

<rev>:<path>, e.g. HEAD:README, :README, master:./README 
     A suffix : followed by a path names the blob or tree at the given 
     path in the tree-ish object named by the part before the colon. 

Answer 2

git show是你要找的命令：

git show tag-name:foo.bin > foo-tag-name.bin