Issue informative warning if index is too old

CMakeLists.txt

@@ -4,10 +4,10 @@ enable_testing()
 
 project (RapMap)
 
-set(CPACK_PACKAGE_VERSION "0.1.1")
-set(CPACK_PACKAGE_VERSION_MAJOR "0")
-set(CPACK_PACKAGE_VERSION_MINOR "1")
-set(CPACK_PACKAGE_VERSION_PATCH "1")
+set(CPACK_PACKAGE_VERSION "0.2.0")
+SET(CPACK_PACKAGE_VERSION_MAJOR "0")
+set(CPACK_PACKAGE_VERSION_MINOR "2")
+set(CPACK_PACKAGE_VERSION_PATCH "0")
 set(CPACK_GENERATOR "TGZ")
 set(CPACK_SOURCE_GENERATOR "TGZ")
 set(CPACK_PACKAGE_VENDOR "Stony Brook University")

include/IndexHeader.hpp

@@ -1,6 +1,7 @@
 #ifndef __INDEX_HEADER_HPP__
 #define __INDEX_HEADER_HPP__
 
+#include "spdlog/spdlog.h"
 #include <cereal/types/string.hpp>
 
 // The different types of indices supported
@@ -31,14 +32,23 @@ class IndexHeader {
             }
 
         template <typename Archive>
-            void load(Archive& ar) {
+        void load(Archive& ar) {
+            try {
                 ar( cereal::make_nvp("IndexType", type_) );
                 ar( cereal::make_nvp("IndexVersion", versionString_) );
                 ar( cereal::make_nvp("UsesKmers", usesKmers_) );
                 ar( cereal::make_nvp("KmerLen", kmerLen_) );
                 ar( cereal::make_nvp("BigSA", bigSA_) );
                 ar( cereal::make_nvp("PerfectHash", perfectHash_) );
+            } catch (const cereal::Exception& e) {
+                auto cerrLog = spdlog::get("stderrLog");
+                cerrLog->error("Encountered exception [{}] when loading index.", e.what());
+                cerrLog->error("The index was likely build with an older (and incompatible) "
+                               "version of RapMap.  Please re-build the index with a compatible version.");
+                cerrLog->flush(); 
+                std::exit(1);
             }
+        }
 
         IndexType indexType() const { return type_; }
         std::string version() const { return versionString_; }

include/RapMapConfig.hpp

@@ -5,10 +5,10 @@
 
 namespace rapmap {
     constexpr char majorVersion[] = "0";
-    constexpr char minorVersion[] = "1";
+    constexpr char minorVersion[] = "2";
     constexpr char patchVersion[] = "0";
-    constexpr char version [] = "0.1.0";
-    constexpr uint32_t indexVersion = 1;
+    constexpr char version [] = "0.2.0";
+    constexpr uint32_t indexVersion = 2;
 }
 
 #endif //__RAPMAP_CONFIG_HPP__

src/RapMapIndex.cpp

@@ -126,7 +126,7 @@ bool RapMapIndex::load(std::string& indexPrefix) {
 
     std::ifstream revJumpStream(revJumpFile, std::ios::binary);
     {
-        logger->info("loading forward jumps");
+        logger->info("loading reverse jumps");
         ScopedTimer timer;
         cereal::BinaryInputArchive revJumpArchive(revJumpStream);
         revJumpArchive(revJumpTable);

src/RapMapSAIndexer.cpp

@@ -716,7 +716,7 @@ void indexTranscriptsSA(ParserT* parser,
         }
     }
 
-    std::string indexVersion = "q1";
+    std::string indexVersion = "q2";
     IndexHeader header(IndexType::QUASI, indexVersion, true, k, largeIndex, usePerfectHash);
     // Finally (since everything presumably succeeded) write the header
     std::ofstream headerStream(outputDir + "header.json");