fix: keep project-level config backwards-compatible

Author: sacha-c

internal/patrol/config.go

@@ -28,5 +28,9 @@ func getConfiguration(filename string) (config scanner.ProjectConfig, found bool
 		log.Warn().Strs("keys", keys).Msg("Found undecoded keys in project configuration")
 	}
 
+	if config.SlackChannel != "" {
+		config.ReportToSlackChannel = config.SlackChannel
+	}
+
 	return config, true, nil
 }

internal/scanner/vulnscanner.go

@@ -51,6 +51,7 @@ type AcknowledgedVuln struct {
 
 type ProjectConfig struct {
 	ReportToSlackChannel string             `toml:"report-to-slack-channel"`
+	SlackChannel         string             `toml:"slack-channel"` // TODO #27: Break in v1.0. Kept for backwards-compatibility
 	Acknowledged         []AcknowledgedVuln `toml:"acknowledged"`
 }