From f77fc4ef5f2df96c6bba3cd6c7d88a77d61a5a80 Mon Sep 17 00:00:00 2001
From: ewy <ewy0@protonmail.com>
Date: Tue, 2 Jun 2026 15:07:59 +0200
Subject: add .wants and .includes

.wants adds potential out-of-tree sources to your state (for monorepos, for example)

.includes adds targets from another source to this one, adding inheritance
---
 model/multi.go | 73 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 model/multi.go

(limited to 'model/multi.go')

diff --git a/model/multi.go b/model/multi.go
new file mode 100644
index 0000000..35b792f
--- /dev/null
+++ b/model/multi.go
@@ -0,0 +1,73 @@
+package model
+
+import (
+	"errors"
+	"io/fs"
+	"path/filepath"
+	"slices"
+	"strings"
+)
+
+func Include(root fs.FS, st *State, data map[string]*SourceData, indexers []Indexer, runners []Runner) error {
+	for _, s := range st.Sources {
+		if data[s.Path] == nil || data[s.Path].Includes == nil {
+			continue
+		}
+		for _, w := range data[s.Path].Includes {
+			if IsRelative(w) {
+				p, err := filepath.Abs(filepath.Join(s.Path, w))
+				if err != nil {
+					return err
+				}
+
+				// check if source is already included
+				for _, maybeSource := range st.Sources {
+					if maybeSource.Path == p {
+						continue
+					}
+				}
+
+				src, errs := NewSource(root, p, indexers, runners)
+				if len(errs) > 0 {
+					return errors.Join(errs...)
+				}
+				s.Targets = append(s.Targets, src.Targets...)
+			}
+		}
+	}
+	return nil
+}
+
+func Wants(root fs.FS, st *State, data map[string]*SourceData, indexers []Indexer, runners []Runner) error {
+	for i, s := range st.Sources {
+		if data[s.Path] == nil || data[s.Path].Wants == nil {
+			continue
+		}
+		for _, w := range data[s.Path].Wants {
+			if IsRelative(w) {
+				p, err := filepath.Abs(filepath.Join(s.Path, w))
+				if err != nil {
+					return err
+				}
+
+				// check if source is already included
+				for _, maybeSource := range st.Sources {
+					if maybeSource.Path == p {
+						continue
+					}
+				}
+
+				src, errs := NewSource(root, p, indexers, runners)
+				if len(errs) > 0 {
+					return errors.Join(errs...)
+				}
+				st.Sources = slices.Insert(st.Sources, i+1, src)
+			}
+		}
+	}
+	return nil
+}
+
+func IsRelative(path string) bool {
+	return strings.HasPrefix(path, ".")
+}
-- 
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