Add modulequeries file cache for module version queries

This adds a new file cache named 'modulequeries' with a 24h maxAge
that caches JSON responses from 'go mod download -json' when querying
module versions with constraints (e.g., version = "<v3.0.0").

On subsequent builds, if the cached JSON exists and the module
directory it references is non-empty, the cached result is used
directly, skipping the costly VCS interaction entirely.

Fixes #14417

config/allconfig/allconfig.go

@@ -822,6 +822,7 @@ type Configs struct {
 
 	Modules       modules.Modules
 	ModulesClient *modules.Client
+	FileCaches    filecache.Caches
 
 	// All below is set in Init.
 	Languages                 langs.Languages
@@ -852,7 +853,7 @@ func (c *Configs) IsZero() bool {
 	return c == nil || len(c.Languages) == 0
 }
 
-func (c *Configs) Init(logger loggers.Logger) error {
+func (c *Configs) Init(sourceFs afero.Fs, logger loggers.Logger) error {
 	var languages langs.Languages
 
 	for _, f := range c.Base.Languages.Config.Sorted {
@@ -1154,10 +1155,16 @@ func fromLoadConfigResult(fs afero.Fs, logger loggers.Logger, res config.LoadCon
 		l.CommonDirs.CacheDir = bcfg.CacheDir
 	}
 
+	caches, err := filecache.NewCaches(all.Caches, fs)
+	if err != nil {
+		return nil, fmt.Errorf("failed to create file caches from configuration: %w", err)
+	}
+
 	cm := &Configs{
 		Base:              all,
 		LanguageConfigMap: langConfigMap,
 		LoadingInfo:       res,
+		FileCaches:        caches,
 		IsMultihost:       isMultihost,
 	}
 

config/allconfig/configlanguage.go

@@ -25,9 +25,8 @@ import (
 )
 
 type ConfigLanguage struct {
-	config     *Config
-	baseConfig config.BaseConfig
-
+	config        *Config
+	baseConfig    config.BaseConfig
 	m             *Configs
 	language      *langs.Language
 	languageIndex int
@@ -123,6 +122,10 @@ func (c ConfigLanguage) BaseConfig() config.BaseConfig {
 	return c.baseConfig
 }
 
+func (c ConfigLanguage) FileCaches() any {
+	return c.m.FileCaches
+}
+
 func (c ConfigLanguage) Dirs() config.CommonDirs {
 	return c.config.CommonDirs
 }

config/allconfig/load.go

@@ -95,7 +95,7 @@ func LoadConfig(d ConfigSourceDescriptor) (configs *Configs, err error) {
 	configs.Modules = moduleConfig.AllModules
 	configs.ModulesClient = modulesClient
 
-	if err := configs.Init(d.Logger); err != nil {
+	if err := configs.Init(d.Fs, d.Logger); err != nil {
 		return nil, fmt.Errorf("failed to init config: %w", err)
 	}
 
@@ -477,6 +477,7 @@ func (l *configLoader) loadModules(configs *Configs, ignoreModuleDoesNotExist bo
 		PublishDir:               publishDir,
 		Environment:              l.Environment,
 		CacheDir:                 conf.Caches.CacheDirModules(),
+		ModuleQueriesCache:       configs.FileCaches.ModuleQueriesCache(),
 		ModuleConfig:             conf.Module,
 		IgnoreVendor:             ignoreVendor,
 		IgnoreModuleDoesNotExist: ignoreModuleDoesNotExist,

config/configProvider.go

@@ -41,6 +41,7 @@ type AllProvider interface {
 	Dirs() CommonDirs
 	Quiet() bool
 	DirsBase() CommonDirs
+	FileCaches() any
 	ContentTypes() ContentTypesProvider
 	GetConfigSection(string) any
 	GetConfig() any