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dc66e6bad1
Most files already grouped imports into "stdlib -> other -> local",
but some files didn't. The gci formatter is similar to goimports, but
has better options to make sure imports are grouped in the expected
order (and to make sure no additional groups are present).
This formatter has a 'fix' function, so code can be re-formatted auto-
matically;
golangci-lint run -v --fix
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
75 lines
1.9 KiB
Go
75 lines
1.9 KiB
Go
/*
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Copyright 2020 Docker Compose CLI 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 watch
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import (
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"context"
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"time"
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"github.com/jonboulle/clockwork"
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"github.com/sirupsen/logrus"
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"github.com/docker/compose/v5/pkg/utils"
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)
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const QuietPeriod = 500 * time.Millisecond
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// BatchDebounceEvents groups identical file events within a sliding time window and writes the results to the returned
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// channel.
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//
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// The returned channel is closed when the debouncer is stopped via context cancellation or by closing the input channel.
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func BatchDebounceEvents(ctx context.Context, clock clockwork.Clock, input <-chan FileEvent) <-chan []FileEvent {
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out := make(chan []FileEvent)
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go func() {
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defer close(out)
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seen := utils.Set[FileEvent]{}
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flushEvents := func() {
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if len(seen) == 0 {
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return
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}
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logrus.Debugf("flush: %d events %s", len(seen), seen)
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events := make([]FileEvent, 0, len(seen))
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for e := range seen {
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events = append(events, e)
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}
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out <- events
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seen = utils.Set[FileEvent]{}
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}
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t := clock.NewTicker(QuietPeriod)
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defer t.Stop()
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for {
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select {
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case <-ctx.Done():
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return
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case <-t.Chan():
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flushEvents()
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case e, ok := <-input:
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if !ok {
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// input channel was closed
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flushEvents()
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return
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}
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if _, ok := seen[e]; !ok {
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seen.Add(e)
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}
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t.Reset(QuietPeriod)
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}
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}
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}()
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return out
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}
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