git absorb is an unofficial Git extension that automatically applies fixup commits to their corresponding original commits, without manually finding commit SHAs.

The manual way:

# Find the commit to fix
git log
# Create fixup commit
git commit --fixup <commit-sha>
# Rebase to apply
git rebase --autosquash --interactive origin/master

The automatic way with git absorb:

# Install (via cargo or package manager)
cargo install git-absorb

# Stage your changes
git add -p

# Automatically create and apply fixups
git absorb --and-rebase

What it does:

Git absorb analyzes your staged changes and intelligently determines which commits they should be fixed into, automatically creating fixup commits and rebasing them.

Transforms this:

commit 3: linting issue for Feature A
commit 2: Fix bug for Feature A
commit 1: Feature A

Into this:

commit 2: Feature B
commit 1: Feature A (with bug fix and linting integrated)

Why use it:

• No need to hunt for commit SHAs
• Automatically determines which commit to fix
• Creates clean, atomic commits
• Saves time during code review prep
• Makes git history more readable

Perfect for cleaning up small fixes, typos, and linting issues before pushing or creating a pull request.

Original source