1 files changed, 43 insertions, 3 deletions

diff --git a/internal/rosa/state.go b/internal/rosa/state.go
index fca1aa48..f2ba2059 100644
--- a/internal/rosa/state.go
+++ b/internal/rosa/state.go
@@ -91,7 +91,9 @@ type Metadata struct {
 	Website string `json:"website,omitempty"`
 
 	// Runtime dependencies.
-	Dependencies P `json:"dependencies"`
+	Runtimes P `json:"runtime"`
+	// Whether this package is unlike to be a runtime dependency.
+	Unlikely bool `json:"unlikely,omitempty"`
 
 	// Package version.
 	Version string `json:"version"`
@@ -1028,6 +1030,12 @@ func (t Toolchain) evalArtifact(v any, meta *Metadata) pkg.Artifact {
 	}
 }
 
+// isUnlikely returns whether p is unlikely to be a runtime dependency.
+func (t Toolchain) isUnlikely(handle ArtifactH) bool {
+	meta, _ := t.MustLoad(handle)
+	return meta.Unlikely
+}
+
 // pf implements [azalea.PF].
 func (ctx *evalContext) pf(
 	name azalea.Ident,
@@ -1049,9 +1057,11 @@ func (ctx *evalContext) pf(
 		source  any
 		helper  Helper
 		overlay string
+		join    bool
 
-		inputs, runtimes, extra azalea.Array
+		tools, inputs, extra azalea.Array
 
+		runtimes  = azalea.Array{}
 		bootstrap = true
 	)
 	if err = args.Apply(map[unique.Handle[azalea.Ident]]any{
@@ -1082,7 +1092,10 @@ func (ctx *evalContext) pf(
 		k("source"):   &source,
 		k("exec"):     &helper,
 		k("inputs"):   &inputs,
+		k("tools"):    &tools,
 		k("runtime"):  &runtimes,
+		k("join"):     &join,
+		k("unlikely"): &meta.Unlikely,
 		k("extra"):    &extra,
 		k("overlay"):  &overlay,
 	}); err != nil {
@@ -1092,12 +1105,39 @@ func (ctx *evalContext) pf(
 	var inputsH, extraH P
 	if inputsH, err = toHandles(inputs); err != nil {
 		return
-	} else if meta.Dependencies, err = toHandles(runtimes); err != nil {
+	} else if attr.Tools, err = toHandles(tools); err != nil {
 		return
 	} else if extraH, err = toHandles(extra); err != nil {
 		return
 	}
 
+	if join || (runtimes != nil && len(runtimes) == 0 && helper != nil) {
+		hi := helper.inputs()
+		meta.Runtimes = make(P, 0, len(hi)+len(inputsH)+len(runtimes))
+		for _, h := range hi {
+			if ctx.t.isUnlikely(h) {
+				continue
+			}
+			meta.Runtimes = append(meta.Runtimes, h)
+		}
+		for _, h := range inputsH {
+			if ctx.t.isUnlikely(h) {
+				continue
+			}
+			meta.Runtimes = append(meta.Runtimes, h)
+		}
+
+		if join {
+			var extraRuntimes P
+			if extraRuntimes, err = toHandles(runtimes); err != nil {
+				return
+			}
+			meta.Runtimes = append(meta.Runtimes, extraRuntimes...)
+		}
+	} else if meta.Runtimes, err = toHandles(runtimes); err != nil {
+		return
+	}
+
 	meta.ID = int(anitya)
 	for _, pathname := range patches {
 		var p []byte