CI: better implementation for workaround introduced in f75cb1d4f2

Use predefined upload delays for each pipe.

.cirrus.yml

@@ -33,24 +33,28 @@ pipe:
   name: Build and Upload - aarch64
   environment:
     TERMUX_ARCH: aarch64
+    UPLOAD_DELAY: 0
 
 pipe:
   << : *BUILD_PIPE_TEMPLATE
   name: Build and Upload - arm
   environment:
     TERMUX_ARCH: arm
+    UPLOAD_DELAY: 20
 
 pipe:
   << : *BUILD_PIPE_TEMPLATE
   name: Build and Upload - i686
   environment:
     TERMUX_ARCH: i686
+    UPLOAD_DELAY: 40
 
 pipe:
   << : *BUILD_PIPE_TEMPLATE
   name: Build and Upload - x86_64
   environment:
     TERMUX_ARCH: x86_64
+    UPLOAD_DELAY: 60
 
 
 task:

scripts/build/ci/cirrus-ci_dispatcher.sh

@@ -129,11 +129,11 @@ else
 	fi
 
 	# Workaround for concurrent uploads.
-	UPLOAD_DELAY=$((30 + RANDOM % 120))
-	echo "[!] Using workaround for Bintray issue with concurrent uploads."
-	echo "[!] Delaying upload by ${UPLOAD_DELAY} seconds."
-	sleep $UPLOAD_DELAY
-	unset UPLOAD_DELAY
+	if [ "$UPLOAD_DELAY" != "0" ];
+		echo "[!] Using workaround for Bintray issue with concurrent uploads."
+		echo "[!] Delaying upload by ${UPLOAD_DELAY} seconds."
+		sleep $UPLOAD_DELAY
+	fi
 
 	for attempt in 1 2 3; do
 		echo "[*] Uploading packages to Bintray:"