Use a stable initial sideHash for tasks

lefou · lefou · commit ed26da0a5874 · 2025-10-29T13:48:51.000+01:00
diff --git a/core/api/src/mill/api/Task.scala b/core/api/src/mill/api/Task.scala
@@ -490,7 +490,7 @@ object Task {
       val isPrivate: Option[Boolean]
   ) extends Simple[T] {
     val inputs = Nil
-    override def sideHash: Int = util.Random.nextInt()
+    override def sideHash: Int = 31337 // a prime number
     // FIXME: deprecated return type: Change to Option
     override def writerOpt: Some[Writer[?]] = Some(writer)
   }

Original file line number	Diff line number	Diff line change
`@@ -490,7 +490,7 @@ object Task {`
`490`	`490`	`val isPrivate: Option[Boolean]`
`491`	`491`	`) extends Simple[T] {`
`492`	`492`	`val inputs = Nil`
`493`		`- override def sideHash: Int = util.Random.nextInt()`
	`493`	`+ override def sideHash: Int = 31337 // a prime number`
`494`	`494`	`// FIXME: deprecated return type: Change to Option`
`495`	`495`	`override def writerOpt: Some[Writer[?]] = Some(writer)`
`496`	`496`	`}`