Add ability to clear runtime cache for long-lived programs to call.

lib/core/PackageRepository.js

@@ -134,6 +134,12 @@ PackageRepository.prototype.list = function () {
     return this._resolveCache.list();
 };
 
+PackageRepository.clearRuntimeCache = function () {
+    ResolveCache.clearRuntimeCache();
+    RegistryClient.clearRuntimeCache();
+    resolverFactory.clearRuntimeCache();
+};
+
 // ---------------------
 
 PackageRepository.prototype._resolve = function (resolver, logger) {

lib/core/resolverFactory.js

@@ -102,7 +102,7 @@ function getConstructor(source, config, registryClient) {
     });
 }
 
-function createResolver(decEndpoint, config, logger, registryClient) {
+function createInstance(decEndpoint, config, logger, registryClient) {
     return getConstructor(decEndpoint.source, config, registryClient)
     .spread(function (ConcreteResolver, source, fromRegistry) {
         var resolverDecEndpoint = mout.object.pick(decEndpoint, ['name', 'target']);
@@ -118,6 +118,12 @@ function createResolver(decEndpoint, config, logger, registryClient) {
     });
 }
 
-createResolver.getConstructor = getConstructor;
+function clearRuntimeCache() {
+    mout.object.values(resolvers).forEach(function (ConcreteResolver) {
+        ConcreteResolver.clearRuntimeCache();
+    });
+}
 
-module.exports = createResolver;
+module.exports = createInstance;
+module.exports.getConstructor = getConstructor;
+module.exports.clearRuntimeCache = clearRuntimeCache;

lib/index.js

@@ -1,8 +1,11 @@
 var abbrev = require('abbrev');
 var mout = require('mout');
 var commands = require('./commands');
+var PackageRepository = require('./core/PackageRepository');
 
-var abbreviations;
+var abbreviations = abbrev(names(commands));
+abbreviations.i = 'install';
+abbreviations.rm = 'uninstall';
 
 function names(obj, prefix, stack) {
     prefix = prefix || '';
@@ -21,12 +24,16 @@ function names(obj, prefix, stack) {
     return stack;
 }
 
-abbreviations = abbrev(names(commands));
-abbreviations.i = 'install';
-abbreviations.rm = 'uninstall';
+function clearRuntimeCache() {
+    // Note that the runtime cache is only cleared statically
+    // If you got an instance of an architecture component that holds cache,
+    // you should get rid of it and instantiate a new one after calling this
+    PackageRepository.clearRuntimeCache();
+}
 
 module.exports = {
     commands: commands,
     config: require('./config'),
-    abbreviations: abbreviations
+    abbreviations: abbreviations,
+    reset: clearRuntimeCache
 };