Planet Template Update

Planet Template Update

Overview

Use this skill for Planet's bundled template collection in PlanetSiteTemplates, where built-in site templates are tracked as submodules under Sources/PlanetSiteTemplates/Resources/.

The goal is to update template submodule pointers, understand the upstream template changes behind each pointer bump, run focused validation, and commit only the reviewed submodule updates with a clear multi-paragraph message.

Update Workflow

1. Start from the PlanetSiteTemplates repository root.
2. Check git status --short. If there are unrelated local changes before the update, stop and ask unless the user explicitly said to include them.
3. Run the helper script:

tools/planet-template-update/scripts/update-and-report.sh --update

The zsh helper runs git pull --ff-only, git submodule update --init --remote, prints superproject status, and reports each changed submodule with old/new SHAs, commit log, diff stat, changed files, and current template metadata.

If sandboxing blocks network access or Git metadata writes, rerun the same command with escalation. Do not replace this with ad hoc commands unless the script itself fails for a real reason.

Review Workflow

For every changed submodule path reported by the helper:

1. Inspect the upstream commit range:

git -C <submodule-path> log --oneline --decorate <old-sha>..<new-sha>
git -C <submodule-path> diff --stat <old-sha>..<new-sha>
git -C <submodule-path> diff --name-status <old-sha>..<new-sha>

2. Read the actual diffs for changed template, JavaScript, CSS, metadata, and hook files. Use git -C <submodule-path> diff <old-sha>..<new-sha> -- <file> for targeted reads.
3. Check template.json when it changed or when the template behavior changed:
   • JSON must parse with jq empty.
   • buildNumber should increase when bundled users need the update. Planet compares existing and bundled build numbers before overwriting installed built-in templates.
   • New settings should have clear names, correct types, safe defaults, and descriptions that match actual behavior.
4. Check template/runtime changes for escaping, optional data, path handling, page-type scope, and generated markup compatibility with Planet's Stencil/Jinja-style templates.
5. Summarize findings first if there are bugs or risks. Do not commit a known blocker unless the user explicitly asks to proceed.

Validation

Run these before committing reviewed changes:

git diff --submodule=log --ignore-submodules=none
git diff --check

For every changed template.json, run:

jq empty <submodule-path>/template.json

Run swift test as a package smoke test when time permits. If it fails only because PlanetSiteTemplatesTests.testBuiltInTemplates expects 1 template while the package currently loads multiple built-in templates, report that as existing test drift rather than a template update regression.

Commit Workflow

1. Stage only the reviewed submodule pointer paths:

git add <submodule-path> [...]

2. Create a detailed commit message. For one template, use:

Update <Template> template for <main change>

Advance the bundled <Template> template submodule from <old-sha> to <new-sha>.

This brings in <Template>'s <feature/fix> support:
- <specific upstream change>
- <specific upstream change>
- <metadata or compatibility change>

<Why this matters for generated Planet sites or bundled template users.>

For multiple templates, use:

Update bundled site templates

Advance bundled template submodules to their latest reviewed upstream revisions.

<Template A> moves from <old-sha> to <new-sha>:
- <specific upstream change>
- <specific upstream change>

<Template B> moves from <old-sha> to <new-sha>:
- <specific upstream change>

<Why these updates matter for Planet users.>

3. Commit with the message. Prefer git commit -F <message-file> for multi-paragraph messages when shell quoting would be fragile.
4. Confirm with git status --short and git log -1 --format=fuller.
5. Final response should include the commit hash, any review findings or residual test failures, and whether the working tree is clean.