print error stack on failure of 'apt' solver

Git-Dch: ignore

diff --git a/cmdline/apt-internal-solver.cc b/cmdline/apt-internal-solver.cc
index b85c07c..e4cdf63 100644 (file)
--- a/cmdline/apt-internal-solver.cc
+++ b/cmdline/apt-internal-solver.cc
@@ -31,6 +31,7 @@
 #include <string>
 #include <unistd.h>
 #include <cstdio>
+#include <stdlib.h>
 
 #include <apti18n.h>
                                                                        /*}}}*/
@@ -56,6 +57,12 @@ static bool ShowHelp(CommandLine &) {
        return true;
 }
                                                                        /*}}}*/
+APT_NORETURN static void DIE(std::string const &message) {             /*{{{*/
+       std::cerr << "ERROR: " << message << std::endl;
+       _error->DumpErrors(std::cerr);
+       exit(EXIT_FAILURE);
+}
+                                                                       /*}}}*/
 int main(int argc,const char *argv[])                                  /*{{{*/
 {
        CommandLine::Args Args[] = {
@@ -115,34 +122,29 @@ int main(int argc,const char *argv[])                                     /*{{{*/
 
        EDSP::WriteProgress(0, "Start up solver…", output);
 
-       if (pkgInitSystem(*_config,_system) == false) {
-               std::cerr << "System could not be initialized!" << std::endl;
-               return 1;
-       }
+       if (pkgInitSystem(*_config,_system) == false)
+               DIE("System could not be initialized!");
 
        EDSP::WriteProgress(1, "Read request…", output);
 
        if (WaitFd(input, false, 5) == false)
-               std::cerr << "WAIT timed out in the resolver" << std::endl;
+               DIE("WAIT timed out in the resolver");
 
        std::list<std::string> install, remove;
        bool upgrade, distUpgrade, autoRemove;
-       if (EDSP::ReadRequest(input, install, remove, upgrade, distUpgrade, autoRemove) == false) {
-               std::cerr << "Parsing the request failed!" << std::endl;
-               return 2;
-       }
+       if (EDSP::ReadRequest(input, install, remove, upgrade, distUpgrade, autoRemove) == false)
+               DIE("Parsing the request failed!");
 
        EDSP::WriteProgress(5, "Read scenario…", output);
 
        pkgCacheFile CacheFile;
-       CacheFile.Open(NULL, false);
+       if (CacheFile.Open(NULL, false) == false)
+               DIE("Failed to open CacheFile!");
 
        EDSP::WriteProgress(50, "Apply request on scenario…", output);
 
-       if (EDSP::ApplyRequest(install, remove, CacheFile) == false) {
-               std::cerr << "Failed to apply request to depcache!" << std::endl;
-               return 3;
-       }
+       if (EDSP::ApplyRequest(install, remove, CacheFile) == false)
+               DIE("Failed to apply request to depcache!");
 
        pkgProblemResolver Fix(CacheFile);
        for (std::list<std::string>::const_iterator i = remove.begin();
@@ -183,10 +185,8 @@ int main(int argc,const char *argv[])                                      /*{{{*/
 
        EDSP::WriteProgress(95, "Write solution…", output);
 
-       if (EDSP::WriteSolution(CacheFile, output) == false) {
-               std::cerr << "Failed to output the solution!" << std::endl;
-               return 4;
-       }
+       if (EDSP::WriteSolution(CacheFile, output) == false)
+               DIE("Failed to output the solution!");
 
        EDSP::WriteProgress(100, "Done", output);