jsonconfig: fix keys for default providers

internal/command/command_test.go

@@ -171,7 +171,8 @@ func testFixturePath(name string) string {
 func metaOverridesForProvider(p providers.Interface) *testingOverrides {
 	return &testingOverrides{
 		Providers: map[addrs.Provider]providers.Factory{
-			addrs.NewDefaultProvider("test"): providers.FactoryFixed(p),
+			addrs.NewDefaultProvider("test"):                                           providers.FactoryFixed(p),
+			addrs.NewProvider(addrs.DefaultProviderRegistryHost, "hashicorp2", "test"): providers.FactoryFixed(p),
 		},
 	}
 }

internal/command/jsonconfig/config.go

@@ -231,6 +231,36 @@ func marshalProviderConfigs(
 			p.VersionConstraint = getproviders.VersionConstraintsString(vc)
 		}
 
+		if c.Parent != nil {
+			parentKey := opaqueProviderKey(pr.Name, c.Parent.Path.String())
+			p.parentKey = findSourceProviderKey(parentKey, p.FullName, m)
+		}
+
+		m[key] = p
+	}
+
+	// Providers could be implicitly created or inherited from the parent module
+	// when no requirements and configuration block defined.
+	for req := range reqs {
+		// Only default providers could implicitly exist,
+		// so the provider name must be same as the provider type.
+		key := opaqueProviderKey(req.Type, c.Path.String())
+		if _, exists := m[key]; exists {
+			continue
+		}
+
+		p := providerConfig{
+			Name:          req.Type,
+			FullName:      req.String(),
+			ModuleAddress: c.Path.String(),
+		}
+
+		// In child modules, providers defined in the parent module can be implicitly used.
+		if c.Parent != nil {
+			parentKey := opaqueProviderKey(req.Type, c.Parent.Path.String())
+			p.parentKey = findSourceProviderKey(parentKey, p.FullName, m)
+		}
+
 		m[key] = p
 	}
 
@@ -259,22 +289,7 @@ func marshalProviderConfigs(
 
 			key := opaqueProviderKey(moduleProviderName, cc.Path.String())
 			parentKey := opaqueProviderKey(parentProviderName, cc.Parent.Path.String())
-
-			// Traverse up the module call tree until we find the provider
-			// configuration which has no linked parent config. This is then
-			// the source of the configuration used in this module call, so
-			// we link to it directly
-			for {
-				parent, exists := m[parentKey]
-				if !exists {
-					break
-				}
-				p.parentKey = parentKey
-				parentKey = parent.parentKey
-				if parentKey == "" {
-					break
-				}
-			}
+			p.parentKey = findSourceProviderKey(parentKey, p.FullName, m)
 
 			m[key] = p
 		}
@@ -527,3 +542,24 @@ func opaqueProviderKey(provider string, addr string) (key string) {
 	}
 	return key
 }
+
+// Traverse up the module call tree until we find the provider
+// configuration which has no linked parent config. This is then
+// the source of the configuration used in this module call, so
+// we link to it directly
+func findSourceProviderKey(startKey string, fullName string, m map[string]providerConfig) string {
+	var parentKey string
+
+	key := startKey
+	for key != "" {
+		parent, exists := m[key]
+		if !exists || parent.FullName != fullName {
+			break
+		}
+
+		parentKey = key
+		key = parent.parentKey
+	}
+
+	return parentKey
+}

internal/command/jsonconfig/config_test.go

@@ -0,0 +1,100 @@
+package jsonconfig
+
+import (
+	"testing"
+)
+
+func TestFindSourceProviderConfig(t *testing.T) {
+	tests := []struct {
+		StartKey    string
+		FullName    string
+		ProviderMap map[string]providerConfig
+		Want        string
+	}{
+		{
+			StartKey:    "null",
+			FullName:    "hashicorp/null",
+			ProviderMap: map[string]providerConfig{},
+			Want:        "",
+		},
+		{
+			StartKey: "null",
+			FullName: "hashicorp/null",
+			ProviderMap: map[string]providerConfig{
+				"null": {
+					Name:          "null",
+					FullName:      "hashicorp/null",
+					ModuleAddress: "",
+				},
+			},
+			Want: "null",
+		},
+		{
+			StartKey: "null2",
+			FullName: "hashicorp/null",
+			ProviderMap: map[string]providerConfig{
+				"null": {
+					Name:          "null",
+					FullName:      "hashicorp/null",
+					ModuleAddress: "",
+				},
+			},
+			Want: "",
+		},
+		{
+			StartKey: "null",
+			FullName: "hashicorp2/null",
+			ProviderMap: map[string]providerConfig{
+				"null": {
+					Name:          "null",
+					FullName:      "hashicorp/null",
+					ModuleAddress: "",
+				},
+			},
+			Want: "",
+		},
+		{
+			StartKey: "module.a:null",
+			FullName: "hashicorp/null",
+			ProviderMap: map[string]providerConfig{
+				"null": {
+					Name:          "null",
+					FullName:      "hashicorp/null",
+					ModuleAddress: "",
+				},
+				"module.a:null": {
+					Name:          "module.a:null",
+					FullName:      "hashicorp/null",
+					ModuleAddress: "module.a",
+					parentKey:     "null",
+				},
+			},
+			Want: "null",
+		},
+		{
+			StartKey: "module.a:null",
+			FullName: "hashicorp2/null",
+			ProviderMap: map[string]providerConfig{
+				"null": {
+					Name:          "null",
+					FullName:      "hashicorp/null",
+					ModuleAddress: "",
+				},
+				"module.a:null": {
+					Name:          "module.a:null",
+					FullName:      "hashicorp2/null",
+					ModuleAddress: "module.a",
+					parentKey:     "null",
+				},
+			},
+			Want: "module.a:null",
+		},
+	}
+
+	for _, test := range tests {
+		got := findSourceProviderKey(test.StartKey, test.FullName, test.ProviderMap)
+		if got != test.Want {
+			t.Errorf("wrong result:\nGot: %#v\nWant: %#v\n", got, test.Want)
+		}
+	}
+}

internal/command/show_test.go

@@ -493,7 +493,8 @@ func TestShow_json_output(t *testing.T) {
 			expectError := strings.Contains(entry.Name(), "error")
 
 			providerSource, close := newMockProviderSource(t, map[string][]string{
-				"test": {"1.2.3"},
+				"test":            {"1.2.3"},
+				"hashicorp2/test": {"1.2.3"},
 			})
 			defer close()
 

internal/command/testdata/show-json/basic-delete/output.json

@@ -130,6 +130,12 @@
         }
     },
     "configuration": {
+        "provider_config": {
+            "test": {
+                "name": "test",
+                "full_name": "registry.terraform.io/hashicorp/test"
+            }
+        },
         "root_module": {
             "outputs": {
                 "test": {

internal/command/testdata/show-json/basic-update/output.json

@@ -96,6 +96,12 @@
         }
     },
     "configuration": {
+        "provider_config": {
+            "test": {
+                "name": "test",
+                "full_name": "registry.terraform.io/hashicorp/test"
+            }
+        },
         "root_module": {
             "outputs": {
                 "test": {

internal/command/testdata/show-json/drift/output.json

@@ -141,6 +141,12 @@
         }
     },
     "configuration": {
+        "provider_config": {
+            "test": {
+                "name": "test",
+                "full_name": "registry.terraform.io/hashicorp/test"
+            }
+        },
         "root_module": {
             "resources": [
                 {

internal/command/testdata/show-json/module-depends-on/output.json

@@ -43,6 +43,12 @@
         }
     ],
     "configuration": {
+        "provider_config": {
+            "test": {
+                "name": "test",
+                "full_name": "registry.terraform.io/hashicorp/test"
+            }
+        },
         "root_module": {
             "resources": [
                 {

internal/command/testdata/show-json/modules/output.json

@@ -293,6 +293,11 @@
                 "module_address": "module.module_test_foo",
                 "name": "test",
                 "full_name": "registry.terraform.io/hashicorp/test"
+            },
+            "module.module_test_bar:test": {
+                "module_address": "module.module_test_bar",
+                "name": "test",
+                "full_name": "registry.terraform.io/hashicorp/test"
             }
         }
     }

internal/command/testdata/show-json/moved-drift/output.json

@@ -143,6 +143,12 @@
         }
     },
     "configuration": {
+        "provider_config": {
+            "test": {
+                "name": "test",
+                "full_name": "registry.terraform.io/hashicorp/test"
+            }
+        },
         "root_module": {
             "resources": [
                 {

internal/command/testdata/show-json/moved/output.json

@@ -68,6 +68,12 @@
         }
     },
     "configuration": {
+        "provider_config": {
+            "test": {
+                "name": "test",
+                "full_name": "registry.terraform.io/hashicorp/test"
+            }
+        },
         "root_module": {
             "resources": [
                 {

internal/command/testdata/show-json/multi-resource-update/output.json

@@ -137,6 +137,12 @@
         }
     },
     "configuration": {
+        "provider_config": {
+            "test": {
+                "name": "test",
+                "full_name": "registry.terraform.io/hashicorp/test"
+            }
+        },
         "root_module": {
             "outputs": {
                 "test": {

internal/command/testdata/show-json/nested-modules/output.json

@@ -37,9 +37,7 @@
       "name": "test",
       "provider_name": "registry.terraform.io/hashicorp/test",
       "change": {
-        "actions": [
-          "create"
-        ],
+        "actions": ["create"],
         "before": null,
         "after": {
           "ami": "bar-var"
@@ -53,6 +51,13 @@
     }
   ],
   "configuration": {
+    "provider_config": {
+      "module.my_module.module.more:test": {
+        "module_address": "module.my_module.module.more",
+        "name": "test",
+        "full_name": "registry.terraform.io/hashicorp/test"
+      }
+    },
     "root_module": {
       "module_calls": {
         "my_module": {
@@ -71,9 +76,7 @@
                       "provider_config_key": "module.my_module.module.more:test",
                       "expressions": {
                         "ami": {
-                          "references": [
-                            "var.test_var"
-                          ]
+                          "references": ["var.test_var"]
                         }
                       },
                       "schema_version": 0

internal/command/testdata/show-json/provider-aliasing-conflict/child/main.tf

@@ -0,0 +1,11 @@
+terraform {
+  required_providers {
+    test = {
+      source = "hashicorp2/test"
+    }
+  }
+}
+
+resource "test_instance" "test" {
+  ami = "bar"
+}

internal/command/testdata/show-json/provider-aliasing-conflict/main.tf

@@ -0,0 +1,11 @@
+provider "test" {
+  region = "somewhere"
+}
+
+resource "test_instance" "test" {
+  ami = "foo"
+}
+
+module "child" {
+  source = "./child"
+}