basic implementation of chump list

include/exec.h

@@ -6,6 +6,7 @@
 
 void printLogo();
 void printPackage(Package pkg);
+void printPackages(Manager* mgr);
 
 // Parse arguments into a (command, arguments[]) tuple
 std::tuple<std::string, std::vector<std::string>> parseArgs( int argc, const char ** argv ) {
@@ -34,6 +35,13 @@ void execCommand(std::string cmd, std::vector<std::string> args, Manager* manage
 
     printPackage(pkg.value());
 
+  } else if (cmd == "list") {
+    if (args.size() != 0) {
+      std::cerr << "\"chump list\" should have no arguments" << std::endl;
+      return;
+    }
+
+    printPackages(manager);
   } else if (cmd == "install") {
     // manager->fetch->fetch("https://ccrma.stanford.edu/~nshaheed/220a/hw4/hw4.wav");
     // manager->fetch->fetch("https://ccrma.stanford.edu/~nshaheed/rave_models/chafe_cello.ts");
@@ -51,6 +59,13 @@ void printPackage(Package pkg) {
   std::cout << pkg << std::endl;
 }
 
+void printPackages(Manager* mgr) {
+  vector<Package> packages = mgr->listPackages();
+  for (Package p: packages) {
+    std::cout << p.name << std::endl;
+  }
+}
+
 
 void printLogo() {
   std::cout << std::endl;

include/package_list.h

@@ -29,6 +29,7 @@ class PackageList {
 
   // return specific version of package
   optional<PackageVersion> find_package_version(string name, string version);
+  std::vector<Package> get_packages();
 
 
   /* static void from_json(const json& j, PackageList& pkg_list); */

src/manager.cpp

@@ -63,3 +63,7 @@ bool Manager::uninstall(std::string packageName) {
 
   return true;
 }
+
+std::vector<Package> Manager::listPackages() {
+  return package_list->get_packages();
+}

src/package_list.cpp

@@ -61,3 +61,7 @@ optional<PackageVersion> PackageList::find_package_version(string name, string v
   return {};
 }
 
+std::vector<Package> PackageList::get_packages() {
+  return packages;
+}
+