AgentSkillsCN

release-branch

为 SkiaSharp 创建发布分支。当用户说“发布 X”、“启动 X 版本的发布”、“为 X 创建发布分支”、“我想发布”或“立即发布”时,可使用此技能。这是发布流程的第一步——创建分支并推送到 CI 触发器。该技能还可自动从主分支中识别出下一个预览版本。

SKILL.md
--- frontmatter
name: release-branch
description: >
  Create a release branch for SkiaSharp.
  Use when user says "release X", "start release X", "create release branch for X",
  "I want to release", or "release now".
  This is the FIRST step of releasing - creates branch and pushes to trigger CI.
  Can auto-detect next preview version from main branch.

Release Branch Skill

Create release branches for SkiaSharp versions.

⚠️ NO UNDO: This is step 1 of 3. See releasing.md for full workflow.

⚠️ Branch Protection (COMPLIANCE REQUIRED)

🛑 NEVER commit directly to main or skiasharp branches. This is a policy violation.

RepositoryProtected BranchesRequired Action
SkiaSharp (parent)mainCreate release/X.Y.Z branch, never commit to main
externals/skia (submodule)main, skiasharpMust use feature branch if submodule changes needed

Release branches are created FROM main, but never modify main directly.


Step 1: Determine Version

Auto-detect (user says "release now")

  1. Fetch main and read SKIASHARP_VERSION from scripts/azure-templates-variables.yml
  2. List existing branches: git branch -r | grep "release/{version}-preview"
  3. Next preview = highest + 1 (or 1 if none)
  4. Confirm with user: "Next release will be X.Y.Z-preview.N. Proceed?"

User provides version

Use the provided version directly.


Step 2: Determine Release Type

Version FormatTypeBasePREVIEW_LABEL
X.Y.Z-preview.NPreviewmainpreview.N
X.Y.ZStablerelease/X.Y.Z-preview.{latest}stable
X.Y.Z.F-preview.NHotfix Previewtag vX.Y.Zpreview.N
X.Y.Z.FHotfix Stablerelease/X.Y.Z.F-preview.{latest}stable

For stable releases, find latest preview: git branch -r | grep "release/X.Y.Z-preview" | sort -V | tail -1


Step 3: Create Branch and Update PREVIEW_LABEL

  1. Checkout the base (main, preview branch, or tag)
  2. Create branch release/{version}
  3. Edit scripts/azure-templates-variables.yml: set PREVIEW_LABEL
  4. Commit: git commit -m "Bump the version to {version}"
  5. Show diff summary to user and confirm with ask_user before pushing

Step 4: Push Branch

bash
git push -u origin release/{version}

This triggers CI build (2-4 hours).


Step 5: Bump Version on Main (Preview from main only)

Skip for stable and hotfix releases.

  1. Create branch bump-version-{next} from main

  2. Edit scripts/azure-templates-variables.yml:

    • Update SKIASHARP_VERSION to next version
    • Reset PREVIEW_LABEL to preview.0
  3. Edit scripts/VERSIONS.txt:

    • SkiaSharp file{next}.0
    • All SkiaSharp ... nuget lines → {next}
    • HarfBuzzSharp file → increment 4th digit (e.g., 8.3.1.48.3.1.5)
    • All HarfBuzzSharp ... nuget lines → same as file version
  4. Commit: git commit -m "Bump to the next version ({next}) after release"

  5. Show diff to user, then:

    bash
    git push -u origin bump-version-{next}
    gh pr create --title "Bump to the next version ({next}) after release" --body ""
    gh pr merge --merge --delete-branch
    

Resources

  • releasing.md — Version patterns, HarfBuzz versioning, workflow diagrams