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

Question

I need to write a script that will

iterate through all of the commits on a branch, starting from the most recent
for each commit, iterate through all of the files in the commit
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.

score 35 · Accepted Answer · answered May 10 '11 at 17:20

35

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.

answered May 10 '11 at 17:20

CB Bailey

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Thanks, Charles. I actually do want only the commit where files were changed. – Jacko May 10 '11 at 18:16
"$branch" should be quoted as a matter of course even though the hash should always be shell-safe. – Fred Zimmerman May 05 '18 at 05:14

score 15 · Answer 2 · answered May 10 '11 at 17:15

git rev-list will list all revisions reachable from a given commit in reverse chronological order, so you can pass it a branch name to get the list for that branch head backwards:

$ git rev-list master                                                                                    
a6060477b9dca7021bc34f373360f75064a0b728
7146d679312ab5425fe531390c6bb389cd9c8910
53e3d0c1e1239d0e846b3947c4a6da585960e02d
a91b80b91e9890f522fe8e83feda32b8c6eab7b6
...

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

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