-
Notifications
You must be signed in to change notification settings - Fork 0
/
root.go
63 lines (55 loc) · 1.64 KB
/
root.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
// Copyright 2020 Coinbase, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http:https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cmd
import (
"context"
"os"
"os/signal"
"syscall"
"github.com/fatih/color"
"github.com/spf13/cobra"
)
var (
rootCmd = &cobra.Command{
Use: "rosetta-ethereum",
Short: "Ethereum implementation of the Rosetta API",
}
// SignalReceived is set to true when a signal causes us to exit. This makes
// determining the error message to show on exit much more easy.
SignalReceived = false
)
// Execute handles all invocations of the
// rosetta-ethereum cmd.
func Execute() error {
return rootCmd.Execute()
}
func init() {
rootCmd.AddCommand(runCmd)
rootCmd.AddCommand(utilsBootstrapCmd)
}
// handleSignals handles OS signals so we can ensure we close database
// correctly. We call multiple sigListeners because we
// may need to cancel more than 1 context.
func handleSignals(listeners []context.CancelFunc) {
sigs := make(chan os.Signal, 1)
signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)
go func() {
sig := <-sigs
color.Red("received signal", "signal", sig)
SignalReceived = true
for _, listener := range listeners {
listener()
}
}()
}