drone/app/api/controller/gitspace/logs_stream.go

92 lines
2.2 KiB
Go

// Copyright 2023 Harness, Inc.
//
// 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 gitspace
import (
"context"
"encoding/json"
"fmt"
apiauth "github.com/harness/gitness/app/api/auth"
"github.com/harness/gitness/app/auth"
"github.com/harness/gitness/app/sse"
"github.com/harness/gitness/livelog"
"github.com/harness/gitness/types/enum"
)
func (c *Controller) LogsStream(
ctx context.Context,
session *auth.Session,
spaceRef string,
identifier string,
) (<-chan *sse.Event, <-chan error, error) {
space, err := c.spaceStore.FindByRef(ctx, spaceRef)
if err != nil {
return nil, nil, fmt.Errorf("failed to find space: %w", err)
}
err = apiauth.CheckGitspace(ctx, c.authorizer, session, space.Path, identifier, enum.PermissionGitspaceView)
if err != nil {
return nil, nil, fmt.Errorf("failed to authorize: %w", err)
}
gitspaceConfig, err := c.gitspaceConfigStore.FindByIdentifier(ctx, space.ID, identifier)
if err != nil {
return nil, nil, fmt.Errorf("failed to find gitspace config: %w", err)
}
linec, errc := c.statefulLogger.TailLogStream(ctx, gitspaceConfig.ID)
if linec == nil {
return nil, nil, fmt.Errorf("log stream not present, failed to tail log stream")
}
evenc := make(chan *sse.Event)
errch := make(chan error)
go func() {
defer close(evenc)
defer close(errch)
for {
select {
case <-ctx.Done():
return
case line, ok := <-linec:
if !ok {
return
}
event := sse.Event{
Type: enum.SSETypeLogLineAppended,
Data: marshalLine(line),
}
evenc <- &event
case err = <-errc:
if err != nil {
errch <- err
return
}
}
}
}()
return evenc, errch, nil
}
func marshalLine(line *livelog.Line) []byte {
data, _ := json.Marshal(line)
return data
}