165edb9133
Change-Id: Iac0a2e0b278431d53645acafac5556e492f2fbb0 Signed-off-by: Ruslan Aliev <raliev@mirantis.com>
86 lines
1.7 KiB
Go
86 lines
1.7 KiB
Go
/*
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Copyright 2023.
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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 runner
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import (
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"container/ring"
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"fmt"
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"strings"
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"sync"
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"github.com/go-logr/logr"
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"helm.sh/helm/v3/pkg/action"
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)
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const defaultBufferSize = 5
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func NewDebugLog(log logr.Logger) action.DebugLog {
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return func(format string, v ...interface{}) {
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log.Info(fmt.Sprintf(format, v...))
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}
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}
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type LogBuffer struct {
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mu sync.Mutex
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log action.DebugLog
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buffer *ring.Ring
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}
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func NewLogBuffer(log action.DebugLog, size int) *LogBuffer {
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if size <= 0 {
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size = defaultBufferSize
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}
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return &LogBuffer{
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log: log,
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buffer: ring.New(size),
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}
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}
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func (l *LogBuffer) Log(format string, v ...interface{}) {
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l.mu.Lock()
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// Filter out duplicate log lines, this happens for example when
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// Helm is waiting on workloads to become ready.
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msg := fmt.Sprintf(format, v...)
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if prev := l.buffer.Prev(); prev.Value != msg {
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l.buffer.Value = msg
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l.buffer = l.buffer.Next()
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}
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l.mu.Unlock()
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l.log(format, v...)
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}
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func (l *LogBuffer) Reset() {
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l.mu.Lock()
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l.buffer = ring.New(l.buffer.Len())
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l.mu.Unlock()
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}
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func (l *LogBuffer) String() string {
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var str string
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l.mu.Lock()
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l.buffer.Do(func(s interface{}) {
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if s == nil {
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return
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}
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str += s.(string) + "\n"
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})
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l.mu.Unlock()
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return strings.TrimSpace(str)
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}
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