From 3f6a46ae7eece00e5021869be5b05ba82a11188e Mon Sep 17 00:00:00 2001
From: Johan Nyman <johan@nytamin.se>
Date: Wed, 25 Mar 2020 08:53:08 +0100
Subject: [PATCH] fix: put clear-on-startup behind a flag in config

---
 src/config.ts        |  3 +++
 src/imageProvider.ts | 14 ++++++++------
 2 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/src/config.ts b/src/config.ts
index 09057a0..ba1bd48 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -21,6 +21,9 @@ export interface IConfig {
 
 	/** Which channels/layers to put on the grid by default */
 	defaultRegions?: DefaultRegion[]
+
+	/** If true, sends clear commands on startup */
+	clearOnStartup?: boolean
 }
 export interface ChannelSetup {
 	/** CasparCG channel number (starting on 1) */
diff --git a/src/imageProvider.ts b/src/imageProvider.ts
index 02d4acf..44e93b5 100644
--- a/src/imageProvider.ts
+++ b/src/imageProvider.ts
@@ -101,12 +101,14 @@ export class ImageProvider {
 			}
 		}
 
-		// Reset casparCG channels on startup:
-		await Promise.all(
-			_.map(this.channelSetup, channel => {
-				return this.casparcg.clear(channel.channel)
-			})
-		)
+		if (config.clearOnStartup) {
+			// Reset casparCG channels on startup:
+			await Promise.all(
+				_.map(this.channelSetup, channel => {
+					return this.casparcg.clear(channel.channel)
+				})
+			)
+		}
 		await this.initStreamsFromConfig()
 	}
 	reset () {