config: imports are relative to tf

config/loader_libucl.go

@@ -2,6 +2,7 @@ package config
 
 import (
 	"fmt"
+	"path/filepath"
 
 	"github.com/mitchellh/go-libucl"
 )
@@ -96,6 +97,12 @@ func loadTreeLibucl(root string) (*libuclImportTree, error) {
 	// Load them all
 	result.Children = make([]*libuclImportTree, len(importPaths))
 	for i, path := range importPaths {
+		if !filepath.IsAbs(path) {
+			// Relative paths are relative to the Terraform file itself
+			dir := filepath.Dir(root)
+			path = filepath.Join(dir, path)
+		}
+
 		imp, err := loadTreeLibucl(path)
 		if err != nil {
 			return nil, err

config/loader_test.go

@@ -28,6 +28,29 @@ func TestLoadBasic(t *testing.T) {
 	}
 }
 
+func TestLoadBasic_import(t *testing.T) {
+	c, err := Load(filepath.Join(fixtureDir, "import.tf"))
+	if err != nil {
+		t.Fatalf("err: %s", err)
+	}
+
+	if c == nil {
+		t.Fatal("config should not be nil")
+	}
+
+	actual := variablesStr(c.Variables)
+	if actual != strings.TrimSpace(importVariablesStr) {
+		t.Fatalf("bad:\n%s", actual)
+	}
+
+	/*
+	actual = resourcesStr(c.Resources)
+	if actual != strings.TrimSpace(basicResourcesStr) {
+		t.Fatalf("bad:\n%s", actual)
+	}
+	*/
+}
+
 // This helper turns a resources field into a deterministic
 // string value for comparison in tests.
 func resourcesStr(rs []Resource) string {
@@ -73,3 +96,10 @@ foo
   bar
   bar
 `
+
+const importVariablesStr = `
+foo
+  bar
+  bar
+bar
+`

config/test-fixtures/import.tf

@@ -0,0 +1,6 @@
+import "import/one.tf";
+
+variable "foo" {
+    default = "bar";
+    description = "bar";
+}

config/test-fixtures/import/one.tf

@@ -0,0 +1 @@
+variable "bar" {}