Git, With given change in source, how to find commit number?

Question

I Know in file foo.cpp Following Line has been added some time this year

if(engL.showPrompt()>engL.lessPrompt())
     executeScript();

How to find which commit pushed this change?

possible duplicate of [git, commit log for specific \_line\_ in file?](http://stackoverflow.com/questions/8435343/git-commit-log-for-specific-line-in-file) — gpoo, Feb 01 '13 at 05:12

score 4 · Answer 1 · answered Feb 01 '13 at 05:10

4

git blame foo.cpp will show you line by line what commit was the last one to contribute to that line.

answered Feb 01 '13 at 05:10

Rob Di Marco

with git blame the problem is it talks about from begining which is three year old in my case. and you need to go through every line of code to find. So I was thinking if there is way if I simply pass one line of text like executeScript(); and it gives me the commit number – Efan Harris Feb 01 '13 at 05:59
@EfanHarris See `-L` of `git blame`. It allows you to specify a line range or a regex to search for. – Petr Feb 17 '13 at 21:01

score 3 · Accepted Answer · answered Feb 01 '13 at 05:32

3

If the change is not in the last commit, you can use

git log -S"if(engL.showPrompt()>engL.lessPrompt()) executeScript()" -- path/to/file

answered Feb 01 '13 at 05:32

Michael Wild

aha this looks more promising , let me try it – Efan Harris Feb 01 '13 at 05:59
I get this fatal: bad revision 'if(engL.showPrompt()>engL.lessPrompt())' – Efan Harris Feb 01 '13 at 06:04
Did you include the `-S` (capital S) flag? Also, if you want to use a regular expression, replace it with `-G`. – Michael Wild Feb 01 '13 at 06:46
aha, it was space between S and "if..." creating problem. without space it is working great, Thank you alot. – Efan Harris Feb 01 '13 at 07:48

2 Answers2