Monorepo for Tangled forked from tangled.org/core
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import ( "encoding/json" "fmt" "io" "os" "path/filepath" "strings")
type WorkflowLogger interface { Close() error DataWriter(idx int, stream string) io.Writer ControlWriter(idx int, step Step, stepStatus StepStatus) io.Writer}
type NullLogger struct{}
func (l NullLogger) Close() error { return nil }func (l NullLogger) DataWriter(idx int, stream string) io.Writer { return io.Discard }func (l NullLogger) ControlWriter(idx int, step Step, stepStatus StepStatus) io.Writer { return io.Discard}
type FileWorkflowLogger struct { file *os.File encoder *json.Encoder mask *SecretMask}
func NewFileWorkflowLogger(baseDir string, wid WorkflowId, secretValues []string) (WorkflowLogger, error) { path := LogFilePath(baseDir, wid) file, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0644) if err != nil { return nil, fmt.Errorf("creating log file: %w", err) } return &FileWorkflowLogger{ file: file, encoder: json.NewEncoder(file), mask: NewSecretMask(secretValues), }, nil}
func LogFilePath(baseDir string, workflowID WorkflowId) string { logFilePath := filepath.Join(baseDir, fmt.Sprintf("%s.log", workflowID.String())) return logFilePath}
func (l *FileWorkflowLogger) Close() error { return l.file.Close()}
func (l *FileWorkflowLogger) DataWriter(idx int, stream string) io.Writer { return &dataWriter{ logger: l, idx: idx, stream: stream, }}
func (l *FileWorkflowLogger) ControlWriter(idx int, step Step, stepStatus StepStatus) io.Writer { return &controlWriter{ logger: l, idx: idx, step: step, stepStatus: stepStatus, }}
type dataWriter struct { logger *FileWorkflowLogger idx int stream string}
func (w *dataWriter) Write(p []byte) (int, error) { line := strings.TrimRight(string(p), "\r\n") if w.logger.mask != nil { line = w.logger.mask.Mask(line) } entry := NewDataLogLine(w.idx, line, w.stream) if err := w.logger.encoder.Encode(entry); err != nil { return 0, err } return len(p), nil}
type controlWriter struct { logger *FileWorkflowLogger idx int step Step stepStatus StepStatus}
func (w *controlWriter) Write(_ []byte) (int, error) { entry := NewControlLogLine(w.idx, w.step, w.stepStatus) if err := w.logger.encoder.Encode(entry); err != nil { return 0, err } return len(w.step.Name()), nil}