50 lines
1.8 KiB
Go
50 lines
1.8 KiB
Go
// VulcanizeDB
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// Copyright © 2019 Vulcanize
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package pgipfsethdb
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import (
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blockstore "github.com/ipfs/go-ipfs-blockstore"
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dshelp "github.com/ipfs/go-ipfs-ds-help"
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"github.com/jmoiron/sqlx"
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_ "github.com/lib/pq" //postgres driver
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"github.com/multiformats/go-multihash"
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)
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// MultihashKeyFromKeccak256 converts keccak256 hash bytes into a blockstore-prefixed multihash db key string
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func MultihashKeyFromKeccak256(h []byte) (string, error) {
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mh, err := multihash.Encode(h, multihash.KECCAK_256)
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if err != nil {
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return "", err
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}
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dbKey := dshelp.MultihashToDsKey(mh)
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return blockstore.BlockPrefix.String() + dbKey.String(), nil
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}
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// TestDB connect to the testing database
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// it assumes the database has the IPFS public.blocks table present
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// DO NOT use a production db for the test db, as it will remove all contents of the public.blocks table
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func TestDB() (*sqlx.DB, error) {
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connectStr := "postgresql://localhost:5432/vulcanize_testing?sslmode=disable"
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return sqlx.Connect("postgres", connectStr)
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}
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// ResetTestDB drops all rows in the test db public.blocks table
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func ResetTestDB(db *sqlx.DB) error {
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_, err := db.Exec("TRUNCATE public.blocks CASCADE")
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return err
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}
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