Export specific git commits as patches

Question

I am trying to export multiple commits (those that contain a specific ticket number 1234 in a commit message) to fix the files.

EDIT Working script is located at https://github.com/amenk/SelfScripts/blob/master/git-extract-patches

This is what I have

#!/bin/bash -x commits=`git log --pretty=oneline | grep "#1234" | cut -f1 -d" "` no=1; for COMMIT in $commits do git format-patch -1 $COMMIT --start-number=$no no=$(($no+1)) done 

But for some reason, git format-patch execution fails:

 $ ./getpatches.sh ++ git log --pretty=oneline ++ grep '#6809' ++ cut -f1 '-d ' + commits='da591d66f05513488ee06857edc9d24a046c179d 4fd781da9cc503b961f8e4c42bbb136d9e3c1806 3a9311f5507f91f830b44673c57f672e7aabaac0' + no=1 + for COMMIT in '$commits' + git format-patch -1 'da591d66f05513488ee06857edc9d24a046c179d' --start-number=1 fatal: ambiguous argument 'da591d66f05513488ee06857edc9d24a046c179d': unknown revision or path not in the working tree. Use '--' to separate paths from revisions 

When I call git format-patch -1 'da591d66f05513488ee06857edc9d24a046c179d' --start-number=1 manually, everything is fine.

EDIT:

I think this is something with quotes. If I add git log | grep $COMMIT git log | grep $COMMIT in a loop, I get the following error:

 + grep '992ab41d3539539bd609209beed33a9de2f4277a' grep: Unmatched [ or [^ 

Another effect of interworking is that if I hard code grep '992ab41d3539539bd609209beed33a9de2f4277a' in a for loop, the output of the command (because of the -x option for bash does not contain quotes, and it works.

  + grep 992ab41d3539539bd609209beed33a9de2f4277a 

Where do these quotes come from and how can I get rid of them?

Answer 1

My git implicitly used the --color , so the $COMMIT line contained some color codes. So it ruined the analysis. Interestingly, the color was also contained in my error messages.

But you do not see this in the terminal (it is just colorful), and also not after pasting into the stack overflow.

Decision:

  commits = `git log --no-color --pretty = oneline |  grep "# 1234" |  cut -f1 -d "" `

Answer 2

There is an easier way to get a list of commits:

 git log --format=%H --grep "CAT-300"