mu: implement init, info commands

'init' is for the inital database setup

'info' is for gettting information about the mu database.

lib/mu-store.cc

@@ -1396,3 +1396,44 @@ mu_store_get_dirstamp (const MuStore *store, const char *dirpath, GError **err)
 
 
 }
+
+void
+mu_store_print_info  (const MuStore *store, gboolean nocolor)
+{
+	const auto green{nocolor ? "" : MU_COLOR_GREEN};
+	const auto def{nocolor ? "" : MU_COLOR_DEFAULT};
+
+        std::cout << "database-path      : "
+                  << green << self(store)->database_path() << def << "\n"
+                  << "messages in store  : "
+                  << green << self(store)->size() << def << "\n"
+                  << "schema-version     : "
+                  << green << self(store)->schema_version() << def << "\n";
+
+	const auto created{mu_store_created (store)};
+	const auto tstamp{localtime (&created)};
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wformat-y2k"
+        char tbuf[32];
+	strftime (tbuf, sizeof(tbuf), "%c", tstamp);
+#pragma GCC diagnostic pop
+
+        std::cout << "created            : " << green << tbuf << def << "\n"
+                  << "maildir            : "
+                  << green << self(store)->root_maildir() << def << "\n";
+
+	std::cout << ("personal-addresses : ");
+
+	auto addrs{mu_store_personal_addresses (store)};
+        if (!addrs || g_strv_length(addrs) == 0)
+                std::cout << green << "<none>" << def << "\n";
+        else {
+                for (auto i = 0U; addrs[i]; ++i) {
+                        std::cout << (i != 0 ?  "                     " : "")
+                                  << green << addrs[i] << def << "\n";
+                }
+        }
+
+	g_strfreev(addrs);
+}