go_study/fabric-main/core/config/configtest/config.go

107 lines
2.2 KiB
Go

/*
Copyright IBM Corp. All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
package configtest
import (
"bytes"
"errors"
"fmt"
"os"
"os/exec"
"path/filepath"
"strings"
"testing"
"github.com/spf13/viper"
)
// AddDevConfigPath adds the DevConfigDir to the viper path.
func AddDevConfigPath(v *viper.Viper) {
devPath := GetDevConfigDir()
if v != nil {
v.AddConfigPath(devPath)
} else {
viper.AddConfigPath(devPath)
}
}
func dirExists(path string) bool {
fi, err := os.Stat(path)
if err != nil {
return false
}
return fi.IsDir()
}
// GetDevConfigDir gets the path to the default configuration that is
// maintained with the source tree. This should only be used in a
// test/development context.
func GetDevConfigDir() string {
path, err := gomodDevConfigDir()
if err != nil {
path, err = gopathDevConfigDir()
if err != nil {
panic(err)
}
}
return path
}
func gopathDevConfigDir() (string, error) {
buf := bytes.NewBuffer(nil)
cmd := exec.Command("go", "env", "GOPATH")
cmd.Stdout = buf
if err := cmd.Run(); err != nil {
return "", err
}
gopath := strings.TrimSpace(buf.String())
for _, p := range filepath.SplitList(gopath) {
devPath := filepath.Join(p, "src/github.com/hyperledger/fabric/sampleconfig")
if dirExists(devPath) {
return devPath, nil
}
}
return "", fmt.Errorf("unable to find sampleconfig directory on GOPATH")
}
func gomodDevConfigDir() (string, error) {
buf := bytes.NewBuffer(nil)
cmd := exec.Command("go", "env", "GOMOD")
cmd.Stdout = buf
if err := cmd.Run(); err != nil {
return "", err
}
modFile := strings.TrimSpace(buf.String())
if modFile == "" {
return "", errors.New("not a module or not in module mode")
}
devPath := filepath.Join(filepath.Dir(modFile), "sampleconfig")
if !dirExists(devPath) {
return "", fmt.Errorf("%s does not exist", devPath)
}
return devPath, nil
}
// GetDevMspDir gets the path to the sampleconfig/msp tree that is maintained
// with the source tree. This should only be used in a test/development
// context.
func GetDevMspDir() string {
devDir := GetDevConfigDir()
return filepath.Join(devDir, "msp")
}
func SetDevFabricConfigPath(t *testing.T) {
t.Helper()
t.Setenv("FABRIC_CFG_PATH", GetDevConfigDir())
}