ipld-eth-server/pkg/ipfs/builders.go

86 lines
2.2 KiB
Go

// VulcanizeDB
// Copyright © 2019 Vulcanize
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package ipfs
import (
"context"
"github.com/ipfs/go-blockservice"
"github.com/ipfs/go-ipfs/core"
"github.com/ipfs/go-ipfs/plugin/loader"
"github.com/ipfs/go-ipfs/repo/fsrepo"
ipld "github.com/ipfs/go-ipld-format"
)
// InitIPFSPlugins is used to initialized IPFS plugins before creating a new IPFS node
// This should only be called once
func InitIPFSPlugins() error {
l, err := loader.NewPluginLoader("")
if err != nil {
return err
}
err = l.Initialize()
if err != nil {
return err
}
return l.Inject()
}
// InitIPFSBlockService is used to configure and return a BlockService using an ipfs repo path (e.g. ~/.ipfs)
func InitIPFSBlockService(ipfsPath string) (blockservice.BlockService, error) {
r, openErr := fsrepo.Open(ipfsPath)
if openErr != nil {
return nil, openErr
}
ctx := context.Background()
cfg := &core.BuildCfg{
Online: false,
Repo: r,
}
ipfsNode, newNodeErr := core.NewNode(ctx, cfg)
if newNodeErr != nil {
return nil, newNodeErr
}
return ipfsNode.Blocks, nil
}
type IPFS struct {
n *core.IpfsNode
ctx context.Context
}
func (ipfs IPFS) Add(node ipld.Node) error {
return ipfs.n.DAG.Add(ipfs.n.Context(), node)
}
func InitIPFSNode(repoPath string) (*IPFS, error) {
r, err := fsrepo.Open(repoPath)
if err != nil {
return nil, err
}
ctx := context.Background()
cfg := &core.BuildCfg{
Online: false,
Repo: r,
}
ipfsNode, err := core.NewNode(ctx, cfg)
if err != nil {
return nil, err
}
return &IPFS{n: ipfsNode, ctx: ctx}, nil
}