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Merged
merged 6 commits into from
Oct 9, 2025
Merged

Set up /backport action command #9800

merged 6 commits into from
Oct 9, 2025
+37 −0

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Copilot
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@Copilot Copilot AI commented Sep 30, 2025 •
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Summary

This PR implements the /backport action command to automate the process of backporting merged pull requests to release branches.

Changes

GitHub Actions Workflow

Added a GitHub Actions workflow in .github/workflows/backport.yaml that:

  • Listens for issue comment events on pull requests
  • Integrates with the standard dotnet/arcade/.github/workflows/backport-base.yml@main workflow
  • Automatically handles /backport to <branch-name> commands
  • Creates backport PRs targeting the specified branch
  • Includes a link to the comment that requested the backport for context

Documentation

Added a "Backporting Changes" section to CONTRIBUTING.md that:

  • Explains how to use the /backport to <branch-name> command
  • Provides examples of the command usage
  • Lists available release branches (dev17.13.x, dev17.9.x, dev17.8.x, dev17.7.x, dev17.4.x, dev16.11.x)
  • Notes permission requirements (Write or Admin access)

Usage

Contributors can backport changes by commenting on a merged PR:

/backport to dev17.13.x

This will automatically create a new pull request targeting the dev17.13.x branch with the changes from the original PR. The backport PR will include a link back to the original comment that requested the backport.

Benefits

  • Streamlines the backporting process
  • Reduces manual effort and potential errors
  • Uses the battle-tested dotnet/arcade backport infrastructure
  • Provides a consistent workflow across dotnet repositories
  • Automatically handles branch targeting and PR creation
  • Maintains context by linking to the requesting comment

Fixes #9799

Original prompt

This section details on the original issue you should resolve

<issue_title>Set up /backport action command</issue_title>
<issue_description>## Summary

User Impact

</issue_description>

Comments on the Issue (you are @copilot in this section)

Fixes #9799

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@Copilot Copilot AI changed the title [WIP] Set up /backport action command Set up /backport action command Sep 30, 2025
Copilot finished work on behalf of LittleLittleCloud September 30, 2025 21:54
@LittleLittleCloud LittleLittleCloud marked this pull request as ready for review October 1, 2025 02:32
@LittleLittleCloud LittleLittleCloud requested a review from a team as a code owner October 1, 2025 02:32
LittleLittleCloud
LittleLittleCloud reviewed Oct 1, 2025
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.github/policies/resourceManagement.yml Outdated
- Write
- Admin
then:
- backportPullRequest
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Where is this command comes from

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The backportPullRequest command was part of the GitOps.PullRequestIssueManagement schema that I initially added to resourceManagement.yml. However, I've now reverted that approach.

Instead, the implementation now uses a GitHub Actions workflow (backport.yaml) that calls the standard dotnet/arcade backport workflow, which is a more established and reliable approach used across dotnet repositories. (7e7adfc)

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@copilot revert all other changes eexcept the backport.yaml

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Copilot AI commented Oct 7, 2025

@copilot revert all other changes eexcept the backport.yaml

Reverted the changes to CONTRIBUTING.md and resourceManagement.yml. Only the backport.yaml workflow file remains. (7e7adfc)

@Copilot Copilot AI requested a review from LittleLittleCloud October 7, 2025 20:34
Copilot finished work on behalf of LittleLittleCloud October 7, 2025 20:34
@LittleLittleCloud
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Keep the change in Contributing.md

drewnoakes
drewnoakes approved these changes Oct 9, 2025
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.github/workflows/backport.yaml
Comment on lines 16 to 19
pr_description_template: |
Backport of #%source_pr_number% to %target_branch%
/cc %cc_users%
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Wonder if we could include a link to the comment that requested this. Could be useful to have that context.

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@copilot do what Drew suggested

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Added a link to the requesting comment in the backport PR description template using %source_pr_url%#issuecomment-%trigger_comment_id%. (Latest commit)

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Copilot AI commented Oct 9, 2025

Keep the change in Contributing.md

Restored the CONTRIBUTING.md documentation that explains how to use the /backport command. (Latest commit)

Copilot finished work on behalf of LittleLittleCloud October 9, 2025 05:30
@LittleLittleCloud LittleLittleCloud enabled auto-merge (squash) October 9, 2025 05:43
@LittleLittleCloud LittleLittleCloud merged commit b2ecd5f into main Oct 9, 2025
6 checks passed
@LittleLittleCloud LittleLittleCloud deleted the copilot/fix-2068e180-0152-4e0d-97f1-640db7b92e2d branch October 9, 2025 05:46
@dotnet-policy-service dotnet-policy-service bot added this to the 18.1 milestone Oct 9, 2025
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@drewnoakes drewnoakes drewnoakes approved these changes

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@LittleLittleCloud LittleLittleCloud LittleLittleCloud approved these changes

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Set up /backport action command
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