[GiGwebs]

Solves #340 — more configurable collection paths (locales, publish dates, etc.).

Approach

Rather than bare path: (fields) => string callbacks, this implements {field} placeholders as full path segments — matching the direction discussed on the issue (field names embedded in the path keep entry listing statically knowable for the GitHub storage backend):

blog: collection({
  path: 'src/content/blog/{locale}/*',
  slugField: 'title',
  schema: { locale: fields.text({ label: 'Locale' }), title: fields.slug({ name: 'Title' }) },
})

• Entry slug = pattern filled in (en/my-post) — same composite-slug model ** collections already use, so routing, URLs, the reader, and both storage backends work unchanged
• Creation fills {x} segments from each field's serialized value (serializeWithSlug / serialize, primitives coerced); static mid-pattern segments ({x}/posts/*) work too
• Editing a placeholder field moves the entry via existing slug-rename machinery
• Fully backwards compatible: paths without { behave exactly as before; multi-glob paths now produce a clear error instead of silent corruption

Tests

• New path-utils.test.ts: 14 tests — parsing/errors, schema validation, slug composition, tree listing at exact depth, reader list/read with composite slugs, wrong-depth rejection
• vitest run: 1265 pass; tsc clean; build:packages OK

Notes

• Placeholders can't appear after the glob (clear config error)
• {x} values aren't slugified — segment-safety is enforced at save via field validation
• Composite-slug uniqueness (en/foo ≠ fr/foo) and save-time placeholder validation are covered

@algora-pbc /claim #340

[changeset-bot]

🦋 Changeset detected

Latest commit: 8561ca0

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 4 packages

Name	Type
@keystatic/core	Minor
@keystatic/templates-astro	Patch
@keystatic/templates-nextjs	Patch
@keystatic/templates-remix	Patch

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