/
etcd_spawn_nocov.go
68 lines (58 loc) · 2.12 KB
/
etcd_spawn_nocov.go
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// Copyright 2017 The etcd Authors
//
// 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://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.
//go:build !cov
// +build !cov
package e2e
import (
"fmt"
"os"
"strings"
"go.etcd.io/etcd/pkg/v3/expect"
"go.uber.org/zap"
)
const noOutputLineCount = 0 // regular binaries emit no extra lines
func spawnCmd(args []string, envVars map[string]string) (*expect.ExpectProcess, error) {
return spawnCmdWithLogger(zap.NewNop(), args, envVars)
}
func spawnCmdWithLogger(lg *zap.Logger, args []string, envVars map[string]string) (*expect.ExpectProcess, error) {
wd, err := os.Getwd()
if err != nil {
return nil, err
}
env := mergeEnvVariables(envVars)
if strings.HasSuffix(args[0], "/etcdctl3") {
env = append(env, "ETCDCTL_API=3")
lg.Info("spawning process with ETCDCTL_API=3", zap.Strings("args", args), zap.String("working-dir", wd), zap.Strings("environment-variables", env))
return expect.NewExpectWithEnv(ctlBinPath, args[1:], env)
}
lg.Info("spawning process", zap.Strings("args", args), zap.String("working-dir", wd), zap.Strings("environment-variables", env))
return expect.NewExpectWithEnv(args[0], args[1:], env)
}
func mergeEnvVariables(envVars map[string]string) []string {
var env []string
// Environment variables are passed as parameter have higher priority
// than os environment variables.
for k, v := range envVars {
env = append(env, fmt.Sprintf("%s=%s", k, v))
}
// Now, we can set os environment variables not passed as parameter.
currVars := os.Environ()
for _, v := range currVars {
p := strings.Split(v, "=")
if _, ok := envVars[p[0]]; !ok {
env = append(env, fmt.Sprintf("%s=%s", p[0], p[1]))
}
}
return env
}