50 lines
867 B
Go
50 lines
867 B
Go
package goutil
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"os"
|
|
"os/exec"
|
|
|
|
"github.com/pkg/errors"
|
|
|
|
"github.com/golangci/golangci-lint/pkg/logutils"
|
|
)
|
|
|
|
type Env struct {
|
|
vars map[string]string
|
|
log logutils.Log
|
|
debugf logutils.DebugFunc
|
|
}
|
|
|
|
func NewEnv(log logutils.Log) *Env {
|
|
return &Env{
|
|
vars: map[string]string{},
|
|
log: log,
|
|
debugf: logutils.Debug("env"),
|
|
}
|
|
}
|
|
|
|
func (e *Env) Discover(ctx context.Context) error {
|
|
out, err := exec.CommandContext(ctx, "go", "env", "-json").Output()
|
|
if err != nil {
|
|
return errors.Wrap(err, "failed to run 'go env'")
|
|
}
|
|
|
|
if err = json.Unmarshal(out, &e.vars); err != nil {
|
|
return errors.Wrap(err, "failed to parse go env json")
|
|
}
|
|
|
|
e.debugf("Read go env: %#v", e.vars)
|
|
return nil
|
|
}
|
|
|
|
func (e Env) Get(k string) string {
|
|
envValue := os.Getenv(k)
|
|
if envValue != "" {
|
|
return envValue
|
|
}
|
|
|
|
return e.vars[k]
|
|
}
|