如何在 Git 历史记录中 grep(搜索)提交的代码 [英] How to grep (search) committed code in the Git history
问题描述
我过去曾删除过一个文件或文件中的某些代码.我可以在内容中(而不是在提交消息中)grep 吗?
I have deleted a file or some code in a file sometime in the past. Can I grep in the content (not in the commit messages)?
一个非常糟糕的解决方案是 grep 日志:
A very poor solution is to grep the log:
git log -p | grep <pattern>
然而，这不会立即返回提交哈希.我玩弄了 git grep 无济于事.
However, this doesn't return the commit hash straight away. I played around with git grep to no avail.
推荐答案
要搜索提交内容(即，实际的源代码行，而不是提交消息等)，您需要做:
To search for commit content (i.e., actual lines of source, as opposed to commit messages and the like), you need to do:
git grep <regexp> $(git rev-list --all)
git rev-list --all |如果您遇到参数列表太长"错误，xargs git grep <表达式> 将起作用.
如果您想将搜索限制在某个子树(例如，lib/util")，您需要将其传递给 rev-list 子命令和 grep以及:
If you want to limit the search to some subtree (for instance, "lib/util"), you will need to pass that to the rev-list subcommand and grep as well:
git grep <regexp> $(git rev-list --all -- lib/util) -- lib/util
这将遍历您所有 regexp 的提交文本.
This will grep through all your commit text for regexp.
在两个命令中都传递路径的原因是因为 rev-list 将返回对 lib/util 的所有更改发生的修订列表，但您还需要传递给 grep 以便它只会在 lib/util 中搜索.
The reason for passing the path in both commands is because rev-list will return the revisions list where all the changes to lib/util happened, but also you need to pass to grep so that it will only search in lib/util.
想象一下以下场景:grep 可能会在 rev-list 返回的同一修订版中包含的其他文件上找到相同的
Just imagine the following scenario: grep might find the same <regexp> on other files which are contained in the same revision returned by rev-list (even if there was no change to that file on that revision).
以下是一些其他有用的搜索来源的方法:
Here are some other useful ways of searching your source:
搜索文本匹配正则表达式regexp的工作树:
Search working tree for text matching regular expression regexp:
git grep <regexp>
在工作树中搜索匹配正则表达式 regexp1 或 regexp2 的文本行:
Search working tree for lines of text matching regular expression regexp1 or regexp2:
git grep -e <regexp1> [--or] -e <regexp2>
在工作树中搜索匹配正则表达式 regexp1 和 regexp2 的文本行，仅报告文件路径:
Search working tree for lines of text matching regular expression regexp1 and regexp2, reporting file paths only:
git grep -l -e <regexp1> --and -e <regexp2>
在工作树中搜索具有匹配正则表达式 regexp1 的文本行和匹配正则表达式 regexp2 的文本行的文件:
Search working tree for files that have lines of text matching regular expression regexp1 and lines of text matching regular expression regexp2:
git grep -l --all-match -e <regexp1> -e <regexp2>
在工作树中搜索已更改的文本匹配模式行:
Search working tree for changed lines of text matching pattern:
git diff --unified=0 | grep <pattern>
搜索匹配正则表达式regexp的文本的所有修订:
Search all revisions for text matching regular expression regexp:
git grep <regexp> $(git rev-list --all)
搜索 rev1 和 rev2 之间的所有修订版本以查找匹配正则表达式 regexp 的文本:
Search all revisions between rev1 and rev2 for text matching regular expression regexp:
git grep <regexp> $(git rev-list <rev1>..<rev2>)
这篇关于如何在 Git 历史记录中 grep(搜索)提交的代码的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
