What are Squash the Commits in GitHub PRs?

Squashing commits in GitHub pull requests (PRs) involves combining multiple commits into a single commit before merging the PR into the base branch. This practice has several benefits:

  • Clean commit history: Squashing commits creates a more organized and readable commit history, making it easier to track changes and identify the purpose of each commit.
  • Reduced merge conflicts: By combining multiple commits into one, there is a lower chance of merge conflicts during the pull request merge.
  • Enhanced code review: A squashed commit allows for a more comprehensive code review, as reviewers can focus on the overall changes rather than reviewing individual commits.
  • Simplified branch merging: Squashing commits simplifies the process of merging branches, as there is only one commit to merge instead of multiple.

How to Squash Commits in GitHub PRs:

  1. Open the pull request in GitHub.
  2. Click the "Squash and Merge" button.
  3. Enter a commit message for the squashed commit.
  4. Review the squashed commit and ensure it includes all necessary changes.
  5. Merge the pull request.

FAQs:

  • When should I squash commits in a PR? Squashing commits is recommended when there are multiple small, related changes in a PR.
  • How do I handle conflicts when squashing commits? If there are merge conflicts during the squash, resolve the conflicts before merging.
  • Can I squash commits after a PR has been merged? No, you cannot squash commits after the PR has been merged into the base branch.
  • Does squashing commits affect the commit history? Yes, squashing commits modifies the commit history by combining multiple commits into one.
  • Is squashing commits harmful? In general, no. However, it is essential to ensure that the squashed commit accurately represents the changes and includes sufficient context.

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