mirror of https://github.com/k3s-io/k3s
69 lines
2.0 KiB
Go
69 lines
2.0 KiB
Go
/*
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Copyright 2021 The Kubernetes Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package logs
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import (
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"flag"
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"fmt"
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"strings"
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"github.com/spf13/pflag"
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"k8s.io/apimachinery/pkg/util/validation/field"
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"k8s.io/component-base/config"
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)
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func ValidateLoggingConfiguration(c *config.LoggingConfiguration, fldPath *field.Path) field.ErrorList {
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errs := field.ErrorList{}
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if c.Format != DefaultLogFormat {
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allFlags := UnsupportedLoggingFlags(hyphensToUnderscores)
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for _, fname := range allFlags {
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if flagIsSet(fname, hyphensToUnderscores) {
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errs = append(errs, field.Invalid(fldPath.Child("format"), c.Format, fmt.Sprintf("Non-default format doesn't honor flag: %s", fname)))
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}
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}
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}
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if _, err := LogRegistry.Get(c.Format); err != nil {
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errs = append(errs, field.Invalid(fldPath.Child("format"), c.Format, "Unsupported log format"))
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}
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return errs
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}
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// hyphensToUnderscores replaces hyphens with underscores
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// we should always use underscores instead of hyphens when validate flags
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func hyphensToUnderscores(s string) string {
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return strings.Replace(s, "-", "_", -1)
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}
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func flagIsSet(name string, normalizeFunc func(name string) string) bool {
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f := flag.Lookup(name)
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if f != nil {
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return f.DefValue != f.Value.String()
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}
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if normalizeFunc != nil {
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f = flag.Lookup(normalizeFunc(name))
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if f != nil {
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return f.DefValue != f.Value.String()
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}
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}
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pf := pflag.Lookup(name)
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if pf != nil {
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return pf.DefValue != pf.Value.String()
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}
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panic("failed to lookup unsupported log flag")
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}
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