Example #1
0
func TestRecurivePathResolution(t *testing.T) {
	ctx := context.Background()
	dagService := dagmock.Mock()

	a := randNode()
	b := randNode()
	c := randNode()

	err := b.AddNodeLink("grandchild", c)
	if err != nil {
		t.Fatal(err)
	}

	err = a.AddNodeLink("child", b)
	if err != nil {
		t.Fatal(err)
	}

	for _, n := range []node.Node{a, b, c} {
		_, err = dagService.Add(n)
		if err != nil {
			t.Fatal(err)
		}
	}

	aKey := a.Cid()

	segments := []string{aKey.String(), "child", "grandchild"}
	p, err := path.FromSegments("/ipfs/", segments...)
	if err != nil {
		t.Fatal(err)
	}

	resolver := path.NewBasicResolver(dagService)
	node, err := resolver.ResolvePath(ctx, p)
	if err != nil {
		t.Fatal(err)
	}

	cKey := c.Cid()
	key := node.Cid()
	if key.String() != cKey.String() {
		t.Fatal(fmt.Errorf(
			"recursive path resolution failed for %s: %s != %s",
			p.String(), key.String(), cKey.String()))
	}
}
Example #2
0
func setupNode(ctx context.Context, n *IpfsNode, cfg *BuildCfg) error {
	// setup local peer ID (private key is loaded in online setup)
	if err := n.loadID(); err != nil {
		return err
	}

	rds := &retry.Datastore{
		Batching:    n.Repo.Datastore(),
		Delay:       time.Millisecond * 200,
		Retries:     6,
		TempErrFunc: isTooManyFDError,
	}

	var err error
	bs := bstore.NewBlockstore(rds)
	opts := bstore.DefaultCacheOpts()
	conf, err := n.Repo.Config()
	if err != nil {
		return err
	}

	opts.HasBloomFilterSize = conf.Datastore.BloomFilterSize
	if !cfg.Permament {
		opts.HasBloomFilterSize = 0
	}

	cbs, err := bstore.CachedBlockstore(bs, ctx, opts)
	if err != nil {
		return err
	}

	n.Blockstore = bstore.NewGCBlockstore(cbs, bstore.NewGCLocker())

	rcfg, err := n.Repo.Config()
	if err != nil {
		return err
	}

	if rcfg.Datastore.HashOnRead {
		bs.HashOnRead(true)
	}

	if cfg.Online {
		do := setupDiscoveryOption(rcfg.Discovery)
		if err := n.startOnlineServices(ctx, cfg.Routing, cfg.Host, do, cfg.getOpt("pubsub"), cfg.getOpt("mplex")); err != nil {
			return err
		}
	} else {
		n.Exchange = offline.Exchange(n.Blockstore)
	}

	n.Blocks = bserv.New(n.Blockstore, n.Exchange)
	n.DAG = dag.NewDAGService(n.Blocks)

	internalDag := dag.NewDAGService(bserv.New(n.Blockstore, offline.Exchange(n.Blockstore)))
	n.Pinning, err = pin.LoadPinner(n.Repo.Datastore(), n.DAG, internalDag)
	if err != nil {
		// TODO: we should move towards only running 'NewPinner' explicity on
		// node init instead of implicitly here as a result of the pinner keys
		// not being found in the datastore.
		// this is kinda sketchy and could cause data loss
		n.Pinning = pin.NewPinner(n.Repo.Datastore(), n.DAG, internalDag)
	}
	n.Resolver = path.NewBasicResolver(n.DAG)

	err = n.loadFilesRoot()
	if err != nil {
		return err
	}

	return nil
}