60 lines
1.4 KiB
Go
60 lines
1.4 KiB
Go
package stream
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import (
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"bufio"
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"io"
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"strconv"
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"golang.org/x/net/context"
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)
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// Stream manages the stream of build logs.
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type Stream interface {
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Create(string) error
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Delete(string) error
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Reader(string) (io.ReadCloser, error)
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Writer(string) (io.WriteCloser, error)
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}
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// Create creates a new stream.
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func Create(c context.Context, key string) error {
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return FromContext(c).Create(key)
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}
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// Reader opens the stream for reading.
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func Reader(c context.Context, key string) (io.ReadCloser, error) {
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return FromContext(c).Reader(key)
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}
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// Writer opens the stream for writing.
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func Writer(c context.Context, key string) (io.WriteCloser, error) {
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return FromContext(c).Writer(key)
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}
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// Delete deletes the stream by key.
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func Delete(c context.Context, key string) error {
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return FromContext(c).Delete(key)
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}
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// ToKey is a helper function that converts a unique identifier
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// of type int64 into a string.
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func ToKey(i int64) string {
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return strconv.FormatInt(i, 10)
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}
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// Copy copies the stream from the source to the destination in valid JSON
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// format. This converts the logs, which are per-line JSON objects, to a
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// proper JSON array.
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func Copy(dest io.Writer, src io.Reader) error {
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io.WriteString(dest, "[")
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scanner := bufio.NewScanner(src)
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for scanner.Scan() {
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io.WriteString(dest, scanner.Text())
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io.WriteString(dest, ",\n")
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}
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io.WriteString(dest, "{}]")
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return nil
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}
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