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daemon: Gracefully handle Nix errors.

* nix/nix-daemon/guix-daemon.cc (main): Run Nix code in an exception
  handler; gracefully print error messages, and exit with EXIT_FAILURE.
wip-grafts
Ludovic Courtès 9 years ago
parent
commit
868fce7c4a
  1. 32
      nix/nix-daemon/guix-daemon.cc

32
nix/nix-daemon/guix-daemon.cc

@ -27,6 +27,7 @@
#include <argp.h>
#include <unistd.h>
#include <sys/types.h>
#include <exception>
/* Variables used by `nix-daemon.cc'. */
volatile ::sig_atomic_t blockInt;
@ -170,18 +171,29 @@ main (int argc, char *argv[])
settings.useChroot = false;
#endif
settings.processEnvironment ();
argvSaved = argv;
try
{
settings.processEnvironment ();
/* FIXME: Disable substitutes until we have something that works. */
settings.useSubstitutes = false;
settings.substituters.clear ();
/* FIXME: Disable substitutes until we have something that works. */
settings.useSubstitutes = false;
settings.substituters.clear ();
argp_parse (&argp, argc, argv, 0, 0, 0);
argp_parse (&argp, argc, argv, 0, 0, 0);
if (geteuid () == 0 && settings.buildUsersGroup.empty ())
fprintf (stderr, "warning: running as root is highly recommended, "
"unless `--build-users-group' is used\n");
if (geteuid () == 0 && settings.buildUsersGroup.empty ())
fprintf (stderr, "warning: running as root is highly recommended, "
"unless `--build-users-group' is used\n");
argvSaved = argv;
run (nothing);
run (nothing);
}
catch (std::exception &e)
{
fprintf (stderr, "error: %s\n", e.what ());
return EXIT_FAILURE;
}
return EXIT_SUCCESS; /* never reached */
}
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