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/*
*
* Copyright 2022 gRPC 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.
*
*/
package googlecloud
import (
"errors"
"os/exec"
"regexp"
"strings"
)
const (
windowsCheckCommand = "powershell.exe"
windowsCheckCommandArgs = "Get-WmiObject -Class Win32_BIOS"
powershellOutputFilter = "Manufacturer"
windowsManufacturerRegex = ":(.*)"
)
func manufacturer() ([]byte, error) {
cmd := exec.Command(windowsCheckCommand, windowsCheckCommandArgs)
out, err := cmd.Output()
if err != nil {
return nil, err
}
for _, line := range strings.Split(strings.TrimSuffix(string(out), "\n"), "\n") {
if strings.HasPrefix(line, powershellOutputFilter) {
re := regexp.MustCompile(windowsManufacturerRegex)
name := re.FindString(line)
name = strings.TrimLeft(name, ":")
return []byte(name), nil
}
}
return nil, errors.New("cannot determine the machine's manufacturer")
}
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