compose/cmd/formatter/stopping.go
Nicolas De Loof 29308cb97e keep containers attached on stop to capture termination logs
Signed-off-by: Nicolas De Loof <nicolas.deloof@gmail.com>
2025-07-15 11:26:44 +02:00

120 lines
2.3 KiB
Go

/*
Copyright 2024 Docker Compose CLI authors
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package formatter
import (
"fmt"
"strings"
"time"
"github.com/buger/goterm"
"github.com/docker/compose/v2/pkg/api"
"github.com/docker/compose/v2/pkg/progress"
)
type Stopping struct {
api.LogConsumer
enabled bool
spinner *progress.Spinner
ticker *time.Ticker
startedAt time.Time
}
func NewStopping(l api.LogConsumer) *Stopping {
s := &Stopping{}
s.LogConsumer = logDecorator{
decorated: l,
Before: s.clear,
After: s.print,
}
return s
}
func (s *Stopping) ApplicationTermination() {
if progress.Mode != progress.ModeAuto {
// User explicitly opted for output format
return
}
if disableAnsi {
return
}
s.enabled = true
s.spinner = progress.NewSpinner()
hideCursor()
s.startedAt = time.Now()
s.ticker = time.NewTicker(100 * time.Millisecond)
go func() {
for {
<-s.ticker.C
s.print()
}
}()
}
func (s *Stopping) Close() {
showCursor()
if s.ticker != nil {
s.ticker.Stop()
}
s.clear()
}
func (s *Stopping) clear() {
if !s.enabled {
return
}
height := goterm.Height()
carriageReturn()
saveCursor()
// clearLine()
for i := 0; i < height; i++ {
moveCursorDown(1)
clearLine()
}
restoreCursor()
}
const stoppingBanner = "Gracefully Stopping... (press Ctrl+C again to force)"
func (s *Stopping) print() {
if !s.enabled {
return
}
height := goterm.Height()
width := goterm.Width()
carriageReturn()
saveCursor()
moveCursor(height, 0)
clearLine()
elapsed := time.Since(s.startedAt).Seconds()
timer := fmt.Sprintf("%.1fs ", elapsed)
pad := width - len(timer) - len(stoppingBanner) - 5
fmt.Printf("%s %s %s %s",
progress.CountColor(s.spinner.String()),
stoppingBanner,
strings.Repeat(" ", pad),
progress.TimerColor(timer),
)
carriageReturn()
restoreCursor()
}