How can I find commits in which a specified change happened?

Question

How can i find commits in which a specified change happened? In this case, neither the exact filename nor the exact linenumber are known. Its basically a raw search. I.E. i search for the commits in which a line contains a change from "before" to "after".

ie. commit history as follows:

• Commit A (Base)

    The line without change 
    The text *before* the change
    Another line without relevant change, before
  

• Commit B:

    The line without change 
  - The text *before* the change
  + The text *after* the change
    Another line without relevant change, before
  

• commit C:

    The line without change
    The line of code *after* the change
  - Another line without relevant change, before
  + Another line without a relevant change
  

As a result i just want to have the hash for commit B. I basically need all changes in all files.

Answer 1

Use git log -G<search pattern>. For more info, see the second part of this article.