chore(contrib): instrument advisories

As part of #621, we can add some custom instrumentation to the
generation of advisories for `-contrib`.

internal/contrib/sync.go

@@ -7,10 +7,16 @@ import (
 	"log/slog"
 	"os"
 	"path"
+	"path/filepath"
 
+	"dmd.tanna.dev/internal/tracing"
 	"github.com/jedib0t/go-pretty/v6/progress"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/trace"
 )
 
+var tracer = otel.Tracer("dmd.tanna.dev/internal/contrib")
+
 func Sync(ctx context.Context, logger *slog.Logger, sqlDB *sql.DB, pw progress.Writer) error {
 	err := GenerateAdvisories(ctx, logger, sqlDB, pw)
 	if err != nil {
@@ -21,6 +27,9 @@ func Sync(ctx context.Context, logger *slog.Logger, sqlDB *sql.DB, pw progress.W
 }
 
 func GenerateAdvisories(ctx context.Context, logger *slog.Logger, sqlDB *sql.DB, pw progress.Writer) error {
+	ctx, span := tracer.Start(ctx, "Generating advisories via -contrib", trace.WithAttributes(tracing.AttributeKeyDMDAdvisories.String("dmd-contrib")))
+	defer span.End()
+
 	tx, err := sqlDB.BeginTx(ctx, nil)
 	if err != nil {
 		return err
@@ -48,15 +57,21 @@ func GenerateAdvisories(ctx context.Context, logger *slog.Logger, sqlDB *sql.DB,
 	}
 
 	for _, de := range files {
+		ctx, span := tracer.Start(ctx, "Generating custom advisories from an SQL file from -contrib", trace.WithAttributes(tracing.AttributeKeyDMDCustomAdvisoryName.String(filepath.Base(de.Name()))))
+
 		contents, err := os.ReadFile(path.Join(advisoriesPath, de.Name()))
 		if err != nil {
+			span.End()
 			return err
 		}
 
-		_, err = tx.Exec(string(contents))
+		_, err = tx.ExecContext(ctx, string(contents))
 		if err != nil {
+			span.End()
 			return err
 		}
+
+		span.End()
 	}
 
 	return tx.Commit()

internal/tracing/attributes.go

@@ -24,6 +24,7 @@ const (
 	AttributeKeyDMDDependencyUpdatesCount attribute.Key = "dmd.dependencyUpdates.count"
 	AttributeKeyDMDAdvisories             attribute.Key = "dmd.advisories"
 	AttributeKeyDMDDatasource             attribute.Key = "dmd.datasource"
+	AttributeKeyDMDCustomAdvisoryName     attribute.Key = "dmd.customAdvisories.name"
 
 	AttributeKeyFilesCount attribute.Key = "files.count"
 )