Locating code changes in git repo

Finding a commit for a specific change

git grep <regexp> $(git rev-list --all) or git rev-list --all | xargs git grep <expression>

where:

• git grep <expression> search for a specific phrase, e.g. function or class name (for regex use -e flag like git grep -e <regexp1>)
• git rev-list --all - gives list of commit hashes

Find the branch where commit comes from

git branch -a --contains <commit-sha>

where:

• git branch -a - includes local and remote branches