github.com/google/cadvisor@v0.49.1/machine/operatingsystem_windows.go (about)

     1  // Copyright 2020 Google Inc. All Rights Reserved.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package machine
    16  
    17  import (
    18  	"fmt"
    19  
    20  	"golang.org/x/sys/windows/registry"
    21  )
    22  
    23  func getOperatingSystem() (string, error) {
    24  	system := "Windows"
    25  	k, err := registry.OpenKey(registry.LOCAL_MACHINE, `SOFTWARE\Microsoft\Windows NT\CurrentVersion`, registry.QUERY_VALUE)
    26  	if err != nil {
    27  		return system, err
    28  	}
    29  	defer k.Close()
    30  
    31  	productName, _, err := k.GetStringValue("ProductName")
    32  	if err != nil {
    33  		return system, nil
    34  	}
    35  
    36  	releaseId, _, err := k.GetStringValue("ReleaseId")
    37  	if err != nil {
    38  		return system, err
    39  	}
    40  
    41  	currentBuildNumber, _, err := k.GetStringValue("CurrentBuildNumber")
    42  	if err != nil {
    43  		return system, err
    44  	}
    45  	revision, _, err := k.GetIntegerValue("UBR")
    46  	if err != nil {
    47  		return system, err
    48  	}
    49  
    50  	system = fmt.Sprintf("%s Version %s (OS Build %s.%d)",
    51  		productName, releaseId, currentBuildNumber, revision)
    52  
    53  	return system, nil
    54  }