Merge pull request #1790 from alixander/amend

amend expose imports

d2ir/compile.go

@@ -27,7 +27,8 @@ type globContext struct {
 type compiler struct {
 	err *d2parser.ParseError
 
-	fs fs.FS
+	fs      fs.FS
+	imports []string
 	// importStack is used to detect cyclic imports.
 	importStack []string
 	// importCache enables reuse of files imported multiple times.
@@ -80,7 +81,7 @@ func Compile(ast *d2ast.Map, opts *CompileOptions) (*Map, []string, error) {
 	if !c.err.Empty() {
 		return nil, nil, c.err
 	}
-	return m, c.importStack, nil
+	return m, c.imports, nil
 }
 
 func (c *compiler) overlayClasses(m *Map) {

d2ir/import.go

@@ -80,6 +80,13 @@ func (c *compiler) __import(imp *d2ast.Import) (*Map, bool) {
 	}
 	defer c.popImportStack()
 
+	// Only get immediate imports.
+	if len(c.importStack) == 2 {
+		if _, ok := c.importCache[impPath]; !ok {
+			c.imports = append(c.imports, imp.PathWithPre())
+		}
+	}
+
 	ir, ok := c.importCache[impPath]
 	if ok {
 		return ir, true