75 lines
1.8 KiB
Go
75 lines
1.8 KiB
Go
package repo
|
|
|
|
import (
|
|
"github.com/ipfs/go-datastore"
|
|
"github.com/ipfs/go-datastore/mount"
|
|
"github.com/ipfs/go-datastore/namespace"
|
|
"golang.org/x/xerrors"
|
|
"os"
|
|
"path/filepath"
|
|
|
|
badger "github.com/ipfs/go-ds-badger2"
|
|
levelds "github.com/ipfs/go-ds-leveldb"
|
|
"github.com/ipfs/go-ds-measure"
|
|
ldbopts "github.com/syndtr/goleveldb/leveldb/opt"
|
|
)
|
|
|
|
var fsDatastores = map[string]func(path string) (datastore.Batching, error){
|
|
"chain": badgerDs,
|
|
"metadata": levelDs,
|
|
|
|
// Those need to be fast for large writes... but also need a really good GC :c
|
|
"staging": badgerDs, // miner specific
|
|
"client": badgerDs, // client specific
|
|
}
|
|
|
|
func badgerDs(path string) (datastore.Batching, error) {
|
|
opts := badger.DefaultOptions
|
|
opts.Truncate = true
|
|
|
|
return badger.NewDatastore(path, &opts)
|
|
}
|
|
|
|
func levelDs(path string) (datastore.Batching, error) {
|
|
return levelds.NewDatastore(path, &levelds.Options{
|
|
Compression: ldbopts.NoCompression,
|
|
})
|
|
}
|
|
|
|
func (fsr *fsLockedRepo) openDatastore() (datastore.Batching, error) {
|
|
if err := os.MkdirAll(fsr.join(fsDatastore), 0755); err != nil {
|
|
return nil, xerrors.Errorf("mkdir %s: %w", fsr.join(fsDatastore), err)
|
|
}
|
|
|
|
var mounts []mount.Mount
|
|
|
|
for p, ctor := range fsDatastores {
|
|
prefix := datastore.NewKey(p)
|
|
|
|
// TODO: optimization: don't init datastores we don't need
|
|
ds, err := ctor(fsr.join(filepath.Join(fsDatastore, p)))
|
|
if err != nil {
|
|
return nil, xerrors.Errorf("opening datastore %s: %w", prefix, err)
|
|
}
|
|
|
|
ds = measure.New("fsrepo."+p, ds)
|
|
|
|
mounts = append(mounts, mount.Mount{
|
|
Prefix: prefix,
|
|
Datastore: ds,
|
|
})
|
|
}
|
|
|
|
return mount.New(mounts), nil
|
|
}
|
|
|
|
func (fsr *fsLockedRepo) Datastore(ns string) (datastore.Batching, error) {
|
|
fsr.dsOnce.Do(func() {
|
|
fsr.ds, fsr.dsErr = fsr.openDatastore()
|
|
})
|
|
if fsr.dsErr != nil {
|
|
return nil, fsr.dsErr
|
|
}
|
|
return namespace.Wrap(fsr.ds, datastore.NewKey(ns)), nil
|
|
}
|