105 lines
2 KiB
Go
105 lines
2 KiB
Go
package server
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import (
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"io"
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"strconv"
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"github.com/drone/drone/pkg/bus"
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log "github.com/Sirupsen/logrus"
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"github.com/drone/drone/pkg/docker"
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"github.com/gin-gonic/gin"
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"github.com/manucorporat/sse"
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)
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// GetRepoEvents will upgrade the connection to a Websocket and will stream
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// event updates to the browser.
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func GetRepoEvents(c *gin.Context) {
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bus_ := ToBus(c)
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repo := ToRepo(c)
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c.Writer.Header().Set("Content-Type", "text/event-stream")
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eventc := make(chan *bus.Event, 1)
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bus_.Subscribe(eventc)
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defer func() {
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bus_.Unsubscribe(eventc)
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close(eventc)
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log.Infof("closed event stream")
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}()
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c.Stream(func(w io.Writer) bool {
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select {
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case event := <-eventc:
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if event == nil {
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log.Infof("nil event received")
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return false
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}
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if event.Kind == bus.EventRepo &&
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event.Name == repo.FullName {
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sse.Encode(w, sse.Event{
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Event: "message",
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Data: string(event.Msg),
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})
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}
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case <-c.Writer.CloseNotify():
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return false
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}
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return true
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})
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}
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func GetStream(c *gin.Context) {
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store := ToDatastore(c)
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repo := ToRepo(c)
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runner := ToRunner(c)
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commitseq, _ := strconv.Atoi(c.Params.ByName("build"))
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buildseq, _ := strconv.Atoi(c.Params.ByName("number"))
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c.Writer.Header().Set("Content-Type", "text/event-stream")
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commit, err := store.CommitSeq(repo, commitseq)
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if err != nil {
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c.Fail(404, err)
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return
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}
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build, err := store.BuildSeq(commit, buildseq)
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if err != nil {
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c.Fail(404, err)
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return
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}
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rc, err := runner.Logs(build)
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if err != nil {
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c.Fail(404, err)
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return
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}
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go func() {
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<-c.Writer.CloseNotify()
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rc.Close()
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}()
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rw := &StreamWriter{c.Writer, 0}
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defer func() {
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log.Infof("closed log stream")
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rc.Close()
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}()
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docker.StdCopy(rw, rw, rc)
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}
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type StreamWriter struct {
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writer gin.ResponseWriter
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count int
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}
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func (w *StreamWriter) Write(data []byte) (int, error) {
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var err = sse.Encode(w.writer, sse.Event{
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Id: strconv.Itoa(w.count),
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Event: "message",
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Data: string(data),
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})
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w.writer.Flush()
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w.count += len(data)
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return len(data), err
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}
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