go-ethereum/statediff/indexer/database/file/helpers.go
Abdul Rabbani b609d4d6c2 Statediff Geth
* Handle conflicts (#244)

* Handle conflicts

* Update go mod file versions

* Make lint changes

* Disassociate block number from the indexer object

* Update ipld-eth-db ref

* Refactor builder code to make it reusable

* Use prefix comparison for account selective statediffing

* Update builder unit tests

* Add mode to write to CSV files in statediff file writer (#249)

* Change file writing mode to csv files

* Implement writer interface for file indexer

* Implement option for csv or sql in file mode

* Close files in CSV writer

* Add tests for CSV file mode

* Implement CSV file for watched addresses

* Separate test configs for CSV and SQL

* Refactor common code for file indexer tests

* Update indexer to include block hash in receipts and logs (#256)

* Update indexer to include block hash in receipts and logs

* Upgrade ipld-eth-db image in docker-compose to run tests
2022-07-14 08:14:23 -05:00

61 lines
1.5 KiB
Go

// VulcanizeDB
// Copyright © 2021 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 file
import "bytes"
// formatPostgresStringArray parses an array of strings into the proper Postgres string representation of that array
func formatPostgresStringArray(a []string) string {
if a == nil {
return ""
}
if n := len(a); n > 0 {
// There will be at least two curly brackets, 2*N bytes of quotes,
// and N-1 bytes of delimiters.
b := make([]byte, 1, 1+3*n)
b[0] = '{'
b = appendArrayQuotedBytes(b, []byte(a[0]))
for i := 1; i < n; i++ {
b = append(b, ',')
b = appendArrayQuotedBytes(b, []byte(a[i]))
}
return string(append(b, '}'))
}
return "{}"
}
func appendArrayQuotedBytes(b, v []byte) []byte {
b = append(b, '"')
for {
i := bytes.IndexAny(v, `"\`)
if i < 0 {
b = append(b, v...)
break
}
if i > 0 {
b = append(b, v[:i]...)
}
b = append(b, '\\', v[i])
v = v[i+1:]
}
return append(b, '"')
}