Git contains between arbitrary commits

Question

I was wondering if there is a generic method for determining if a commit is the parent of another.

git branch --contains <hash>

I almost want to. It lists all the branches containing a commit, but I want to know if an arbitrary commit "contains" another commit.

My temporary hack is to create a branch in a commit and then check if it is in the list, but that seems sloppy.

git branch __temp_branch__ <hash1>
git branch --contains <hash2> # check if __temp_branch__ is in output
git branch -d __temp_branch__

+3

Kendall hopkins 08 Mar 12 at 19:21

3 answers

git rev-list <childSHA> | grep <parentSHA>

This will return <parentSHA>

if he was a parent<childSHA>

+2

Andy 08 Mar 12 at 19:38

One possibility is possible:

git log --ancestry-path <parentSHA> <childSHA>

If it doesn't return anything, you know parentSHA is not the parent.

0

Carl 08 Mar 12 at 19:40

Cascabel · Accepted Answer · 2012-03-08T21:01:18+0000

If commitA is the ancestor of commitB, then git merge-base commitA commitB

- commitA

. For example:

if [ "$(git merge-base $commitA $commitB)" = "$commitA" ]; then ...

This is significantly more efficient than grepping the output git rev-list

if that matters to you.