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commands.go
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/
commands.go
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package visor
import (
"errors"
"fmt"
"strings"
"code.vegaprotocol.io/vega/visor/utils"
)
const (
dataNodeArg = "datanode"
homeFlagName = "--home"
noHistorySegmentFoundMsg = "no history segments found"
)
var jsonOutputFlag = []string{"--output", "json"}
type latestSegmentCommanndOutput struct {
LatestSegment struct {
Height int64 `json:"to_height"`
}
}
var ErrNoHistorySegmentFound = errors.New(noHistorySegmentFoundMsg)
func latestDataNodeHistorySegment(binary string, binaryArgs Args) (*latestSegmentCommanndOutput, error) {
args := []string{}
if binaryArgs.Exists(dataNodeArg) {
args = append(args, dataNodeArg)
}
args = append(args, []string{"network-history", "latest-history-segment"}...)
args = append(args, binaryArgs.GetFlagWithArg(homeFlagName)...)
var output latestSegmentCommanndOutput
_, err := utils.ExecuteBinary(binary, append(args, jsonOutputFlag...), &output)
if err != nil {
if strings.Contains(err.Error(), noHistorySegmentFoundMsg) {
return nil, ErrNoHistorySegmentFound
}
return nil, err
}
return &output, nil
}
type versionCommandOutput struct {
Version string `json:"version"`
Hash string `json:"hash"`
}
func ensureBinaryVersion(binary, version string) error {
var output versionCommandOutput
if _, err := utils.ExecuteBinary(binary, append([]string{"version"}, jsonOutputFlag...), &output); err != nil {
return err
}
if output.Version != version {
return fmt.Errorf("wrong binary version provided - provided: %s, want: %s", output.Version, version)
}
return nil
}