104 lines
2.3 KiB
Go
104 lines
2.3 KiB
Go
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// Copyright 2020 Coinbase, Inc.
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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 bitcoin
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import (
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"bufio"
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"context"
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"fmt"
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"io"
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"os"
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"os/exec"
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"strings"
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"github.com/coinbase/rosetta-bitcoin/utils"
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"golang.org/x/sync/errgroup"
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)
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const (
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bitcoindLogger = "bitcoind"
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bitcoindStdErrLogger = "bitcoind stderr"
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)
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func logPipe(ctx context.Context, pipe io.ReadCloser, identifier string) error {
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logger := utils.ExtractLogger(ctx, identifier)
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reader := bufio.NewReader(pipe)
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for {
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str, err := reader.ReadString('\n')
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if err != nil {
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logger.Warnw("closing logger", "error", err)
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return err
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}
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message := strings.Replace(str, "\n", "", -1)
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messages := strings.SplitAfterN(message, " ", 2)
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// Trim the timestamp from the log if it exists
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if len(messages) > 1 {
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message = messages[1]
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}
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// Print debug log if from bitcoindLogger
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if identifier == bitcoindLogger {
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logger.Debugw(message)
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continue
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}
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logger.Warnw(message)
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}
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}
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// StartBitcoind starts a bitcoind daemon in another goroutine
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// and logs the results to the console.
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func StartBitcoind(ctx context.Context, configPath string, g *errgroup.Group) error {
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logger := utils.ExtractLogger(ctx, "bitcoind")
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cmd := exec.Command(
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"/app/bitcoind",
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fmt.Sprintf("--conf=%s", configPath),
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) // #nosec G204
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stdout, err := cmd.StdoutPipe()
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if err != nil {
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return err
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}
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stderr, err := cmd.StderrPipe()
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if err != nil {
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return err
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}
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g.Go(func() error {
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return logPipe(ctx, stdout, bitcoindLogger)
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})
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g.Go(func() error {
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return logPipe(ctx, stderr, bitcoindStdErrLogger)
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})
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if err := cmd.Start(); err != nil {
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return fmt.Errorf("%w: unable to start bitcoind", err)
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}
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g.Go(func() error {
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<-ctx.Done()
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logger.Warnw("sending interrupt to bitcoind")
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return cmd.Process.Signal(os.Interrupt)
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})
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return cmd.Wait()
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}
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