73 lines
2.4 KiB
Go
73 lines
2.4 KiB
Go
// Copyright © 2018 Rob Mulholand <rmulholand@8thlight.com>
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cmd
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import (
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"log"
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"github.com/spf13/cobra"
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"github.com/vulcanize/eth-block-extractor/pkg/db"
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"github.com/vulcanize/eth-block-extractor/pkg/ipfs"
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"github.com/vulcanize/eth-block-extractor/pkg/ipfs/eth_block_header"
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"github.com/vulcanize/eth-block-extractor/pkg/transformers"
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"github.com/vulcanize/eth-block-extractor/pkg/wrappers/rlp"
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)
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// createIpldForBlockHeaderCmd represents the createIpldForBlockHeader command
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var createIpldForBlockHeaderCmd = &cobra.Command{
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Use: "createIpldForBlockHeader",
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Short: "Create an IPLD object for a block.",
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Long: `Create an IPLD object for a block.
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e.g. ./eth-block-extractor createIpldForBlockHeader -b 1234567
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Under the hood, the command fetches the block header RLP data from LevelDB and
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puts it in IPFS, converting the data as an 'eth-block'`,
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Run: func(cmd *cobra.Command, args []string) {
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createIpldForBlockHeader()
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},
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}
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func init() {
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rootCmd.AddCommand(createIpldForBlockHeaderCmd)
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createIpldForBlockHeaderCmd.Flags().Int64VarP(&blockNumber, "block-number", "b", 0, "Create IPLD for this block header.")
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}
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func createIpldForBlockHeader() {
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// init eth db
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ethDBConfig := db.CreateDatabaseConfig(db.Level, levelDbPath)
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ethDB, err := db.CreateDatabase(ethDBConfig)
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if err != nil {
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log.Fatal("Error connecting to ethereum db: ", err)
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}
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// init ipfs publisher
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ipfsNode, err := ipfs.InitIPFSNode(ipfsPath)
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if err != nil {
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log.Fatal("Error connecting to IPFS: ", err)
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}
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decoder := rlp.RlpDecoder{}
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dagPutter := eth_block_header.NewBlockHeaderDagPutter(*ipfsNode, decoder)
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publisher := ipfs.NewIpfsPublisher(dagPutter)
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// execute transformer
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transformer := transformers.NewEthBlockHeaderTransformer(ethDB, publisher)
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err = transformer.Execute(blockNumber, blockNumber)
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if err != nil {
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log.Fatal("Error executing transformer: ", err.Error())
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}
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}
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