通过提交消息查找修订

Question

I know this kind of thing gets asked a lot (for example here ), but (maybe because of this) I have not been able to find what I'm looking for.

I know that I can specify a commit by a pattern matching its commit message, instead of by its hash, like this:

git show ":/rename function X to function Y"

This shows me the most recent commit whose message starts with the given pattern, without me having to search for its hash first.

My questions are:

1. What is the name of this feature, and where is it documented? (searching Google for :/ is futile)

2. How can I get the parent of that commit? This does not work:

    git show ":/pattern"^ 

Answer 1

It's a bit ugly, and there may be a better way, but you could use something like the following to find the parent:

git show $(git rev-parse ":/pattern")^

git rev-parse gives the SHA1 for the specified revision, to which you can apply operators such as ^ . Alternatively, you could use git name-rev --name-only , which will give a symbolic name for the revision (eg master~10 ).

Answer 2

:/语法似乎没有专用名称，并在gitrevisions（7）手册页中进行了说明。