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package unshare
import (
"fmt"
"os"
"os/user"
"sync"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
)
var (
homeDirOnce sync.Once
homeDirErr error
homeDir string
hasCapSysAdminOnce sync.Once
hasCapSysAdminRet bool
hasCapSysAdminErr error
)
// HomeDir returns the home directory for the current user.
func HomeDir() (string, error) {
homeDirOnce.Do(func() {
home := os.Getenv("HOME")
if home == "" {
usr, err := user.LookupId(fmt.Sprintf("%d", GetRootlessUID()))
if err != nil {
homeDir, homeDirErr = "", errors.Wrapf(err, "unable to resolve HOME directory")
return
}
homeDir, homeDirErr = usr.HomeDir, nil
return
}
homeDir, homeDirErr = home, nil
})
return homeDir, homeDirErr
}
func bailOnError(err error, format string, a ...interface{}) { // nolint: golint,goprintffuncname
if err != nil {
if format != "" {
logrus.Errorf("%s: %v", fmt.Sprintf(format, a...), err)
} else {
logrus.Errorf("%v", err)
}
os.Exit(1)
}
}
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