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https://github.com/dolthub/dolt.git
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Chris Masone
9684881b5f
While this causes the cache to potentially grow infinitely, having a DataStore keep track of every value it's read or written makes it simpler to program with. Once types.Ref can only come to be by being read out of a DataStore, we can do away with this altogether.
60 lines
1.8 KiB
Go
60 lines
1.8 KiB
Go
package datas
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import (
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"github.com/attic-labs/noms/types"
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"github.com/julienschmidt/httprouter"
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)
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// DataStore provides versioned storage for noms values. Each DataStore instance represents one moment in history. Heads() returns the Commit from each active fork at that moment. The Commit() method returns a new DataStore, representing a new moment in history.
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type RemoteDataStoreClient struct {
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dataStoreCommon
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}
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func NewRemoteDataStore(baseURL, auth string) *RemoteDataStoreClient {
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httpBS := newHTTPBatchStore(baseURL, auth)
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return &RemoteDataStoreClient{newDataStoreCommon(types.NewValueStore(httpBS), httpBS)}
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}
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func (rds *RemoteDataStoreClient) batchSink() batchSink {
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httpBS := rds.vs.BatchStore().(*httpBatchStore)
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return newNotABatchSink(httpBS.host, httpBS.auth)
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}
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func (rds *RemoteDataStoreClient) batchStore() types.BatchStore {
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return rds.vs.BatchStore()
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}
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func (rds *RemoteDataStoreClient) Commit(datasetID string, commit types.Struct) (DataStore, error) {
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err := rds.commit(datasetID, commit)
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rds.vs.Flush()
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return &RemoteDataStoreClient{newDataStoreCommon(rds.vs, rds.rt)}, err
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}
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func (rds *RemoteDataStoreClient) Delete(datasetID string) (DataStore, error) {
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err := rds.doDelete(datasetID)
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rds.vs.Flush()
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return &RemoteDataStoreClient{newDataStoreCommon(rds.vs, rds.rt)}, err
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}
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func (f RemoteStoreFactory) CreateStore(ns string) DataStore {
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return NewRemoteDataStore(f.host+httprouter.CleanPath(ns), f.auth)
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}
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func (f RemoteStoreFactory) Create(ns string) (DataStore, bool) {
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if ds := f.CreateStore(ns); ds != nil {
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return ds, true
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}
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return &LocalDataStore{}, false
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}
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func (f RemoteStoreFactory) Shutter() {}
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func NewRemoteStoreFactory(host, auth string) Factory {
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return RemoteStoreFactory{host: host, auth: auth}
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}
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type RemoteStoreFactory struct {
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host string
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auth string
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}
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