2021-03-11 05:49:48 +01:00
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// Copyright 2016-2021, Pulumi Corporation.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package auto
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import (
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"encoding/json"
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"github.com/nxadm/tail"
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2021-03-17 14:20:05 +01:00
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"github.com/pulumi/pulumi/sdk/v3/go/auto/events"
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"github.com/pulumi/pulumi/sdk/v3/go/common/apitype"
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2021-03-11 05:49:48 +01:00
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)
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func watchFile(path string, receivers []chan<- events.EngineEvent) (*tail.Tail, error) {
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t, err := tail.TailFile(path, tail.Config{
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Follow: true,
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Logger: tail.DiscardingLogger,
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})
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if err != nil {
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return nil, err
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}
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go func(tailedLog *tail.Tail) {
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for line := range tailedLog.Lines {
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if line.Err != nil {
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for _, r := range receivers {
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r <- events.EngineEvent{Error: line.Err}
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}
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continue
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}
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var e apitype.EngineEvent
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err = json.Unmarshal([]byte(line.Text), &e)
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if err != nil {
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for _, r := range receivers {
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r <- events.EngineEvent{Error: err}
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}
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continue
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}
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for _, r := range receivers {
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r <- events.EngineEvent{EngineEvent: e}
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}
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}
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}(t)
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return t, nil
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}
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