ContainerImage.Pinniped/internal/plog/klog.go

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// Copyright 2020 the Pinniped contributors. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
package plog
import (
"sync"
"github.com/spf13/pflag"
)
//nolint: gochecknoglobals
var removeKlogGlobalFlagsLock sync.Mutex
// RemoveKlogGlobalFlags attempts to "remove" flags that get unconditionally added by importing klog.
func RemoveKlogGlobalFlags() {
// since we mess with global state, we need a lock to synchronize us when called in parallel during tests
removeKlogGlobalFlagsLock.Lock()
defer removeKlogGlobalFlagsLock.Unlock()
// if this function starts to panic, it likely means that klog stopped mucking with global flags
const globalLogFlushFlag = "log-flush-frequency"
if err := pflag.CommandLine.MarkHidden(globalLogFlushFlag); err != nil {
panic(err)
}
if err := pflag.CommandLine.MarkDeprecated(globalLogFlushFlag, "unsupported"); err != nil {
panic(err)
}
if pflag.CommandLine.Changed(globalLogFlushFlag) {
panic("unsupported global klog flag set")
}
}