dynamo/DCO.md

✅ Fixing DCO Check Failures

The Developer Certificate of Origin (DCO) check ensures all commits are signed off. If your PR fails the DCO check, here’s how to fix it.

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🖥️ Option 1: Fix via GitHub Web Editor

⚠️ Works only if your PR has 1 commit.

1. Go to your Pull Request → Commits tab.

2. Click the ⋯ menu → Edit commit message.

3. Add this line at the end of the commit message:

   Signed-off-by: Your Name <your.email@example.com>
   

4. Save changes → GitHub will create a new commit with sign-off.

5. Re-run the DCO check.

📦 Option 2: Fix via GitHub Desktop

1. Open your branch in GitHub Desktop.
2. Go to Repository → Repository Settings → Commit Behavior.
3. Check ✅ Always sign-off commits.
4. Amend the last commit:
   • Right-click the commit → Amend Commit.
   • Save again with sign-off enabled.
5. Push with force (if required):

   git push --force-with-lease
   

💻 Option 3: Fix via CLI (Multiple Commits)

1. Enable sign-off in your config:

    git config --global user.name "Your Name"
    git config --global user.email "your.email@example.com"
   

2. Re-sign commits interactively:

    git rebase -i HEAD~N
   

   Replace N with the number of commits to fix. Mark commits as edit, then run:

    git commit --amend --signoff
    git rebase --continue
   

3. Push with:

    git push --force-with-lease
   

🔀 If Your Branch Is Messy After Syncing with main

• Simplest fix: squash all commits into a single new signed commit (via Desktop or CLI).
• Alternatively, ask a maintainer to Squash and Merge with a sign-off on merge.

✨ Pro Tips

This ensures you’ll never fail DCO again.

• Use the -s flag when committing from CLI:

    git commit -s -m "Your commit message"
  

• Turn on Always sign-off commits in your client (GitHub Desktop or Git CLI).

  1. GitHub Desktop Turn on Always sign-off commits in your client.

  2. Git CLI You can always sign-off commits automatically using a commit template (NOTE: This will only work if you use enter your commit message interactively with git commit, and will not work with git commit -m "<message>"):

     1. Create ~/.git-commit-template.txt with:

       Signed-off-by: Your Name <your.email@example.com>
     

  3. Tell Git to use it:

      git config --global commit.template ~/.git-commit-template.txt