Method serveModule

engine/server/session.go:1569–1581

serveModule adds a module to the client's served set with the given install policy. Not threadsafe: client.stateMu must be held when calling.

(client *daggerClient, mod core.Mod, opts core.InstallOpts)

//
// Not threadsafe: client.stateMu must be held when calling.
func (srv *Server) serveModule(client *daggerClient, mod core.Mod, opts core.InstallOpts) error {
	existing, ok := client.servedMods.Lookup(mod.Name())
	if ok {
		if !isSameModuleReference(existing.GetSource(), mod.GetSource()) {
			return fmt.Errorf("module %s (source: %s | pin: %s) already exists with different source %s (pin: %s)",
				mod.Name(), mod.GetSource().AsString(), mod.GetSource().Pin(), existing.GetSource().AsString(), existing.GetSource().Pin(),
			)
		}
	}
	// With handles deduplication and promotion internally.
	client.servedMods = client.servedMods.With(mod, opts)
	return nil
}

// Returns true if the module source a is the same as b or they come from the
// core module.