Deprecate config.BasePackages.Controller in favor of ControllerMap

- ControllerMap allows the subpackage name to be specified for the
  controller.

Signed-off-by: Alper Rifat Ulucinar <ulucinar@users.noreply.github.com>

pkg/config/common.go

@@ -13,6 +13,19 @@ import (
 	tjname "github.com/upbound/upjet/pkg/types/name"
 )
 
+const (
+	// PackageNameConfig is the name of the provider subpackage that contains
+	// the base resources (e.g., ProviderConfig, ProviderConfigUsage,
+	// StoreConfig. etc/).
+	// TODO: we should be careful that there may also exist short groups with
+	// these names. We can consider making these configurable by the provider
+	// maintainer.
+	PackageNameConfig = "config"
+	// PackageNameMonolith is the name of the backwards-compatible
+	// provider subpackage that contains the all the resources.
+	PackageNameMonolith = "monolith"
+)
+
 // Commonly used resource configurations.
 var (
 	DefaultBasePackages = BasePackages{
@@ -21,10 +34,15 @@ var (
 			"apis/v1alpha1",
 			"apis/v1beta1",
 		},
+		//nolint:staticcheck
 		Controller: []string{
 			// Default package for ProviderConfig controllers
 			"internal/controller/providerconfig",
 		},
+		ControllerMap: map[string]string{
+			// Default package for ProviderConfig controllers
+			"internal/controller/providerconfig": PackageNameConfig,
+		},
 	}
 
 	// NopSensitive does nothing.

pkg/config/provider.go

@@ -44,7 +44,9 @@ func (cc ResourceConfiguratorChain) Configure(r *Resource) {
 // and controllers. Typically, we expect to see ProviderConfig packages here.
 type BasePackages struct {
 	APIVersion []string
-	Controller []string
+	// Deprecated: Use ControllerMap instead.
+	Controller    []string
+	ControllerMap map[string]string
 }
 
 // Provider holds configuration for a provider to be generated with Upjet.

pkg/pipeline/run.go

@@ -22,14 +22,6 @@ type terraformedInput struct {
 	ParametersTypeName string
 }
 
-const (
-	// TODO: we should be careful that there may also exist short groups with
-	// these names. We can consider making these configurable by the provider
-	// maintainer.
-	configPackageName   = "config"
-	monolithPackageName = "monolith"
-)
-
 // Run runs the Upjet code generation pipelines.
 func Run(pc *config.Provider, rootDir string) { // nolint:gocyclo
 	// Note(turkenh): nolint reasoning - this is the main function of the code
@@ -65,10 +57,35 @@ func Run(pc *config.Provider, rootDir string) { // nolint:gocyclo
 	}
 	// Add ProviderConfig controller package to the list of controller packages.
 	controllerPkgMap := make(map[string][]string)
+	// new API takes precedence
+	for p, g := range pc.BasePackages.ControllerMap {
+		path := filepath.Join(pc.ModulePath, p)
+		controllerPkgMap[g] = append(controllerPkgMap[g], path)
+		controllerPkgMap[config.PackageNameMonolith] = append(controllerPkgMap[config.PackageNameMonolith], path)
+	}
+	//nolint:staticcheck
 	for _, p := range pc.BasePackages.Controller {
 		path := filepath.Join(pc.ModulePath, p)
-		controllerPkgMap[configPackageName] = append(controllerPkgMap[configPackageName], path)
-		controllerPkgMap[monolithPackageName] = append(controllerPkgMap[monolithPackageName], path)
+		found := false
+		for _, p := range controllerPkgMap[config.PackageNameConfig] {
+			if path == p {
+				found = true
+				break
+			}
+		}
+		if !found {
+			controllerPkgMap[config.PackageNameConfig] = append(controllerPkgMap[config.PackageNameConfig], path)
+		}
+		found = false
+		for _, p := range controllerPkgMap[config.PackageNameMonolith] {
+			if path == p {
+				found = true
+				break
+			}
+		}
+		if !found {
+			controllerPkgMap[config.PackageNameMonolith] = append(controllerPkgMap[config.PackageNameMonolith], path)
+		}
 	}
 	count := 0
 	for group, versions := range resourcesGroups {
@@ -99,7 +116,7 @@ func Run(pc *config.Provider, rootDir string) { // nolint:gocyclo
 				}
 				sGroup := strings.Split(group, ".")[0]
 				controllerPkgMap[sGroup] = append(controllerPkgMap[sGroup], ctrlPkgPath)
-				controllerPkgMap[monolithPackageName] = append(controllerPkgMap[monolithPackageName], ctrlPkgPath)
+				controllerPkgMap[config.PackageNameMonolith] = append(controllerPkgMap[config.PackageNameMonolith], ctrlPkgPath)
 				if err := exampleGen.Generate(group, version, resources[name]); err != nil {
 					panic(errors.Wrapf(err, "cannot generate example manifest for resource %s", name))
 				}

pkg/pipeline/setup.go

@@ -15,6 +15,7 @@ import (
 	"github.com/muvaf/typewriter/pkg/wrapper"
 	"github.com/pkg/errors"
 
+	"github.com/upbound/upjet/pkg/config"
 	"github.com/upbound/upjet/pkg/pipeline/templates"
 )
 
@@ -48,7 +49,7 @@ func (sg *ProviderGenerator) Generate(versionPkgMap map[string][]string, mainTem
 		t = tmpl
 	}
 	if t == nil {
-		return errors.Wrap(sg.generate("", versionPkgMap[monolithPackageName]), "failed to generate the controller setup file")
+		return errors.Wrap(sg.generate("", versionPkgMap[config.PackageNameMonolith]), "failed to generate the controller setup file")
 	}
 	for g, versionPkgList := range versionPkgMap {
 		if err := sg.generate(g, versionPkgList); err != nil {