- Catch exceptions in initialization

- Show unmount command after successfully mounted

src/Cli.cpp

@@ -29,6 +29,7 @@
 
 using namespace cryfs;
 namespace bf = boost::filesystem;
+using namespace cpputils::logging;
 
 using blockstore::ondisk::OnDiskBlockStore;
 using blockstore::inmemory::InMemoryBlockStore;
@@ -116,6 +117,7 @@ namespace cryfs {
     }
 
     void Cli::_runFilesystem(const ProgramOptions &options) {
+        try {
             auto blockStore = make_unique_ref<OnDiskBlockStore>(bf::path(options.baseDir()));
             auto config = _loadOrCreateConfig(options);
             CryDevice device(std::move(config), std::move(blockStore));
@@ -123,11 +125,18 @@ namespace cryfs {
             fspp::fuse::Fuse fuse(&fsimpl);
 
             _initLogfile(options);
+
+            std::cout << "\nFilesystem is running. To unmount, call:\n$ fusermount -u " << options.mountDir() << "\n" << std::endl;
+
             _goToBackgroundIfSpecified(options);
 
             vector<char *> fuseOptions = options.fuseOptions();
-        std::cout << "\nFilesystem is running." << std::endl;
             fuse.run(fuseOptions.size(), fuseOptions.data());
+        } catch (const std::exception &e) {
+            LOG(ERROR) << "Crashed: " << e.what();
+        } catch (...) {
+            LOG(ERROR) << "Crashed";
+        }
     }
 
     void Cli::_goToBackgroundIfSpecified(const ProgramOptions &options) {