Manuel Ganter
c5c872a373
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slog.Any() does not properly serialize slices of slog.Group() attributes,
resulting in broken output like {"Key":"","Value":{}}. Fixed by passing
structs with JSON tags directly to slog.Any() instead.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
61 lines
1.7 KiB
Go
61 lines
1.7 KiB
Go
// ABOUTME: Emits a RunSummary as a structured log entry via slog.
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// ABOUTME: Follows the same slog pattern as internal/output/logger.go for consistency.
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package summary
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import (
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"io"
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"log/slog"
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)
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// SummaryWriter outputs a RunSummary using structured logging
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type SummaryWriter struct {
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logger *slog.Logger
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}
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// NewSummaryWriter creates a writer that emits summaries to the given output in the given format
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func NewSummaryWriter(output io.Writer, format string) *SummaryWriter {
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opts := &slog.HandlerOptions{Level: slog.LevelInfo}
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var handler slog.Handler
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switch format {
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case "text":
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handler = slog.NewTextHandler(output, opts)
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default:
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handler = slog.NewJSONHandler(output, opts)
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}
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return &SummaryWriter{
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logger: slog.New(handler),
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}
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}
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// Write emits the run summary as a single structured log entry
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func (w *SummaryWriter) Write(s *RunSummary) {
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if s == nil {
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return
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}
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w.logger.Info("run_summary",
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slog.Time("start_time", s.StartTime),
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slog.Time("end_time", s.EndTime),
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slog.Float64("duration_seconds", s.DurationSeconds),
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slog.Int("sample_count", s.SampleCount),
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slog.Group("cpu_total_percent",
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slog.Float64("peak", s.CPUTotal.Peak),
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slog.Float64("avg", s.CPUTotal.Avg),
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slog.Float64("p95", s.CPUTotal.P95),
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),
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slog.Group("mem_used_bytes",
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slog.Float64("peak", s.MemUsedBytes.Peak),
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slog.Float64("avg", s.MemUsedBytes.Avg),
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slog.Float64("p95", s.MemUsedBytes.P95),
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),
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slog.Group("mem_used_percent",
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slog.Float64("peak", s.MemUsedPercent.Peak),
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slog.Float64("avg", s.MemUsedPercent.Avg),
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slog.Float64("p95", s.MemUsedPercent.P95),
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),
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slog.Any("top_cpu_processes", s.TopCPUProcesses),
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slog.Any("top_mem_processes", s.TopMemProcesses),
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)
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}
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