Can you explain what the term 'base commit' means in the context of the Git version control system?

In Git, the term "base commit" usually refers to the common ancestor of two branches or commits from which they diverged.

This is a key element in merging (merge) or rebasing (rebase), as Git uses the base commit to determine the changes made in each branch.

For example, if you have a feature branch and a main branch, the base commit is the last common commit present in both branches before they started developing independently.

Understanding the base commit helps to:

• Merge changes correctly without conflicts.
• Analyze differences between branches.

Example command to find the base commit:

git merge-base feature main