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e8381db778
* Update Kubernetes to v1.21.0 * Update to golang v1.16.2 * Update dependent modules to track with upstream * Switch to upstream flannel * Track changes to upstream cloud-controller-manager and FeatureGates Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
78 lines
2.5 KiB
Go
78 lines
2.5 KiB
Go
// +build windows
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// Copyright 2015 flannel authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package powershell
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import (
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"encoding/json"
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"errors"
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"fmt"
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"os/exec"
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"strings"
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)
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//commandWrapper ensures that exceptions are written to stdout and the powershell process exit code is -1
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const commandWrapper = `$ErrorActionPreference="Stop";try { %s } catch { Write-Host $_; os.Exit(-1) }`
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// RunCommand executes a given powershell command.
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//
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// When the command throws a powershell exception, RunCommand will return the exception message as error.
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func RunCommand(command string) ([]byte, error) {
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cmd := exec.Command("powershell.exe", "-NoLogo", "-NoProfile", "-NonInteractive", "-Command", fmt.Sprintf(commandWrapper, command))
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stdout, err := cmd.Output()
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if err != nil {
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if cmd.ProcessState.ExitCode() != 0 {
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message := strings.TrimSpace(string(stdout))
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return []byte{}, errors.New(message)
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}
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return []byte{}, err
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}
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return stdout, nil
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}
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// RunCommandf executes a given powershell command. Command argument formats according to a format specifier (See fmt.Sprintf).
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//
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// When the command throws a powershell exception, RunCommandf will return the exception message as error.
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func RunCommandf(command string, a ...interface{}) ([]byte, error) {
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return RunCommand(fmt.Sprintf(command, a...))
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}
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// RunCommandWithJsonResult executes a given powershell command.
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// The command will be wrapped with ConvertTo-Json.
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//
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// You can Wrap your command with @(<cmd>) to ensure that the returned json is an array
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//
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// When the command throws a powershell exception, RunCommandf will return the exception message as error.
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func RunCommandWithJsonResult(command string, v interface{}) error {
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wrappedCommand := fmt.Sprintf(commandWrapper, "ConvertTo-Json (%s)")
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wrappedCommand = fmt.Sprintf(wrappedCommand, command)
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stdout, err := RunCommandf(wrappedCommand)
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if err != nil {
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return err
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}
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err = json.Unmarshal(stdout, v)
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if err != nil {
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return err
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}
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return nil
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}
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