Git: want to iterate through all commits on branch, and list files in each commit

Question

I need to write a script that will

1. iterate through all of the commits on a branch, starting from the most recent
2. for each commit, iterate through all of the files in the commit
3. if it finds a file of type hbm.xml, store the commit to file and exit.

I have a script for step 2:

for i in `git show --pretty="format:" --name-only SHA1 | grep '.*\.hbm\.xml' `; do     # call script here.....     exit done 

Now, I need to figure out step 1.

Answer 1

Something like:

for commit in $(git rev-list $branch) do     if git ls-tree --name-only -r $commit | grep -q '\.hbm\.xml$'; then         echo $commit         exit 0     fi done 

Note that git show will only list files which have changed in that commit, if you want to know whether there is a path that matches a particular pattern in a commit you need to use something like git ls-tree.