git - 查看特定行的git历史

Question

我想查看与文件中特定行相关的提交历史。我知道我们可以获得文件的历史记录。是否有任何命令可用于仅对与某一特定行相关的提交进行排序？

Answer 1

bomz 给出了正确的选项，但语法错误。固定线路看起来像这样:

git log -L '/the line from your file/,+1:path/to/your/file.txt'

-L 参数的含义是“在 path/to/your/中找到正则表达式 /the line from your file/ 的第一次出现file.txt 并显示关于从这一点开始的一行范围的日志(意思是，只有这一行，但你可以说 +5 代替)。

需要注意的是，如果该行包含在正则表达式中具有特殊含义的字符，您需要对它们进行转义。

但是，使用行号可能会简单得多，如下所示:

git log -L15,+1:'path/to/your/file.txt'

(对于文件 path/to/your/file.txt 的第 15 行)

在这两种情况下，+1 都可以替换为更大的数字以获得更多行，或者替换为正则表达式以匹配所选范围的末尾。

来自 the docs 的详细说明:

-L <start>,<end>:<file>
-L :<funcname>:<file>

Trace the evolution of the line range given by "<start>,<end>" (or the function name regex <funcname>) within the <file>. You may not give any pathspec limiters. This is currently limited to a walk starting from a single revision, i.e., you may only give zero or one positive revision arguments. You can specify this option more than once.

<start> and <end> can take one of these forms:

• number

  If <start> or <end> is a number, it specifies an absolute line number (lines count from 1).

• /regex/

  This form will use the first line matching the given POSIX regex. If <start> is a regex, it will search from the end of the previous -L range, if any, otherwise from the start of file. If <start> is “^/regex/”, it will search from the start of file. If <end> is a regex, it will search starting at the line given by <start>.

• +offset or -offset

  This is only valid for <end> and will specify a number of lines before or after the line given by <start>.

If “:<funcname>” is given in place of <start> and <end>, it is a regular expression that denotes the range from the first funcname line that matches <funcname>, up to the next funcname line. “:<funcname>” searches from the end of the previous -L range, if any, otherwise from the start of file. “^:<funcname>” searches from the start of file.