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Feat v0.8.2 capability negotiation (#69)
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Browse Source 
Extensions declare environment requirements via capabilities.required and
capabilities.optional in their manifest. The kernel validates at install
time — required capabilities reject with HTTP 422 and rollback, optional
capabilities log a warning. Runtime query via settings.has_capability().
Admin endpoint GET /api/v1/admin/capabilities re-probes live.

Detected capabilities: postgres, pgvector, object_storage, s3, workspace.

18 new tests, all passing with -race.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Jeffrey Smith
2026-04-03 08:38:37 +00:00
parent 435f972ded
commit 44bf63e5fe
16 changed files with 567 additions and 64 deletions
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16
server/main.go
View File

@@ -185,6 +185,13 @@ func main() {
}
}
// ── Capability Detection ──────────
// Probe the runtime environment to discover available capabilities.
// Used by install validation and the settings.has_capability() Starlark API.
detectedCaps := handlers.DetectCapabilities(database.DB, database.IsPostgres(), objStore, cfg.WorkspaceRoot)
starlarkRunner.SetCapabilities(detectedCaps)
log.Printf(" capabilities: %v", detectedCaps)
// ── Bundled Packages ───────────────
// Auto-install bundled .pkg archives on first run.
// Skipped if SKIP_BUNDLED_PACKAGES=true or packages already exist.
@@ -193,7 +200,7 @@ func main() {
if cfg.StoragePath != "" {
bundledPkgDir = cfg.StoragePath + "/packages"
}
handlers.InstallBundledPackages(cfg.BundledPackagesDir, bundledPkgDir, cfg.BundledPackages, stores, starlarkRunner)
handlers.InstallBundledPackages(cfg.BundledPackagesDir, bundledPkgDir, cfg.BundledPackages, stores, starlarkRunner, detectedCaps)
}
// ── Register extension user permissions ─────
@@ -830,6 +837,7 @@ func main() {
pkgAdm.SetSandbox(sandbox.New(sandbox.DefaultConfig()))
pkgAdm.SetBundledDir(cfg.BundledPackagesDir)
pkgAdm.SetHub(hub)
pkgAdm.SetCapabilities(detectedCaps)
// Package registry — must be registered before /packages/:id
registryH := handlers.NewRegistryHandler(stores, packagesDir, pkgAdm)
@@ -894,6 +902,12 @@ func main() {
metricsH := handlers.NewMetricsHandler(metricsCollector)
admin.GET("/metrics", metricsH.GetMetrics)
// ── Capabilities ──────────
capsH := handlers.NewCapabilitiesHandler(func() map[string]bool {
return handlers.DetectCapabilities(database.DB, database.IsPostgres(), objStore, cfg.WorkspaceRoot)
})
admin.GET("/capabilities", capsH.GetCapabilities)
// ── Backup/Restore ─────────
backupH := handlers.NewBackupHandler(stores, packagesDir, cfg.StoragePath)
admin.POST("/backup", backupH.CreateBackup)