245 lines
6.6 KiB
C++
245 lines
6.6 KiB
C++
/* GNU Guix --- Functional package management for GNU
|
||
Copyright (C) 2012, 2013 Ludovic Courtès <ludo@gnu.org>
|
||
|
||
This file is part of GNU Guix.
|
||
|
||
GNU Guix is free software; you can redistribute it and/or modify it
|
||
under the terms of the GNU General Public License as published by
|
||
the Free Software Foundation; either version 3 of the License, or (at
|
||
your option) any later version.
|
||
|
||
GNU Guix is distributed in the hope that it will be useful, but
|
||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
GNU General Public License for more details.
|
||
|
||
You should have received a copy of the GNU General Public License
|
||
along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. */
|
||
|
||
#include <config.h>
|
||
|
||
#include <types.hh>
|
||
#include "shared.hh"
|
||
#include <globals.hh>
|
||
#include <util.hh>
|
||
|
||
#include <gcrypt.h>
|
||
|
||
#include <stdlib.h>
|
||
#include <argp.h>
|
||
#include <unistd.h>
|
||
#include <sys/types.h>
|
||
#include <exception>
|
||
|
||
/* Variables used by `nix-daemon.cc'. */
|
||
volatile ::sig_atomic_t blockInt;
|
||
char **argvSaved;
|
||
|
||
using namespace nix;
|
||
|
||
/* Entry point in `nix-daemon.cc'. */
|
||
extern void run (Strings args);
|
||
|
||
|
||
/* Command-line options. */
|
||
|
||
const char *argp_program_version =
|
||
"guix-daemon (" PACKAGE_NAME ") " PACKAGE_VERSION;
|
||
const char *argp_program_bug_address = PACKAGE_BUGREPORT;
|
||
|
||
static char doc[] =
|
||
"guix-daemon -- perform derivation builds and store accesses\
|
||
\v\
|
||
This program is a daemon meant to run in the background. It serves \
|
||
requests sent over a Unix-domain socket. It accesses the store, and \
|
||
builds derivations on behalf of its clients.";
|
||
|
||
#define GUIX_OPT_SYSTEM 1
|
||
#define GUIX_OPT_DISABLE_CHROOT 2
|
||
#define GUIX_OPT_BUILD_USERS_GROUP 3
|
||
#define GUIX_OPT_CACHE_FAILURES 4
|
||
#define GUIX_OPT_LOSE_LOGS 5
|
||
#define GUIX_OPT_DISABLE_LOG_COMPRESSION 6
|
||
#define GUIX_OPT_DISABLE_STORE_OPTIMIZATION 7
|
||
#define GUIX_OPT_IMPERSONATE_LINUX_26 8
|
||
#define GUIX_OPT_DEBUG 9
|
||
#define GUIX_OPT_CHROOT_DIR 10
|
||
#define GUIX_OPT_LISTEN 11
|
||
|
||
static const struct argp_option options[] =
|
||
{
|
||
{ "system", GUIX_OPT_SYSTEM, "SYSTEM", 0,
|
||
"Assume SYSTEM as the current system type" },
|
||
{ "cores", 'c', "N", 0,
|
||
"Use N CPU cores to build each derivation; 0 means as many as available" },
|
||
{ "max-jobs", 'M', "N", 0,
|
||
"Allow at most N build jobs" },
|
||
{ "disable-chroot", GUIX_OPT_DISABLE_CHROOT, 0, 0,
|
||
"Disable chroot builds"
|
||
#ifndef HAVE_CHROOT
|
||
" (chroots are not supported in this configuration, so "
|
||
"this option has no effect)"
|
||
#endif
|
||
},
|
||
{ "chroot-directory", GUIX_OPT_CHROOT_DIR, "DIR", 0,
|
||
"Add DIR to the build chroot"
|
||
#ifndef HAVE_CHROOT
|
||
" (chroots are not supported in this configuration, so "
|
||
"this option has no effect)"
|
||
#endif
|
||
},
|
||
{ "build-users-group", GUIX_OPT_BUILD_USERS_GROUP, "GROUP", 0,
|
||
"Perform builds as a user of GROUP" },
|
||
{ "cache-failures", GUIX_OPT_CACHE_FAILURES, 0, 0,
|
||
"Cache build failures" },
|
||
{ "lose-logs", GUIX_OPT_LOSE_LOGS, 0, 0,
|
||
"Do not keep build logs" },
|
||
{ "disable-log-compression", GUIX_OPT_DISABLE_LOG_COMPRESSION, 0, 0,
|
||
"Disable compression of the build logs" },
|
||
{ "disable-store-optimization", GUIX_OPT_DISABLE_STORE_OPTIMIZATION, 0, 0,
|
||
"Disable automatic file \"deduplication\" in the store" },
|
||
{ "impersonate-linux-2.6", GUIX_OPT_IMPERSONATE_LINUX_26, 0, 0,
|
||
"Impersonate Linux 2.6"
|
||
#ifndef HAVE_SYS_PERSONALITY_H
|
||
" (this option has no effect in this configuration)"
|
||
#endif
|
||
},
|
||
{ "listen", GUIX_OPT_LISTEN, "SOCKET", 0,
|
||
"Listen for connections on SOCKET" },
|
||
{ "debug", GUIX_OPT_DEBUG, 0, 0,
|
||
"Produce debugging output" },
|
||
{ 0, 0, 0, 0, 0 }
|
||
};
|
||
|
||
/* Parse a single option. */
|
||
static error_t
|
||
parse_opt (int key, char *arg, struct argp_state *state)
|
||
{
|
||
switch (key)
|
||
{
|
||
case GUIX_OPT_DISABLE_CHROOT:
|
||
settings.useChroot = false;
|
||
break;
|
||
case GUIX_OPT_CHROOT_DIR:
|
||
settings.dirsInChroot.insert (arg);
|
||
break;
|
||
case GUIX_OPT_DISABLE_LOG_COMPRESSION:
|
||
settings.compressLog = false;
|
||
break;
|
||
case GUIX_OPT_BUILD_USERS_GROUP:
|
||
settings.buildUsersGroup = arg;
|
||
break;
|
||
case GUIX_OPT_DISABLE_STORE_OPTIMIZATION:
|
||
settings.autoOptimiseStore = false;
|
||
break;
|
||
case GUIX_OPT_CACHE_FAILURES:
|
||
settings.cacheFailure = true;
|
||
break;
|
||
case GUIX_OPT_IMPERSONATE_LINUX_26:
|
||
settings.impersonateLinux26 = true;
|
||
break;
|
||
case GUIX_OPT_LOSE_LOGS:
|
||
settings.keepLog = false;
|
||
break;
|
||
case GUIX_OPT_LISTEN:
|
||
try
|
||
{
|
||
settings.nixDaemonSocketFile = canonPath (arg);
|
||
}
|
||
catch (std::exception &e)
|
||
{
|
||
fprintf (stderr, "error: %s\n", e.what ());
|
||
exit (EXIT_FAILURE);
|
||
}
|
||
break;
|
||
case GUIX_OPT_DEBUG:
|
||
verbosity = lvlDebug;
|
||
break;
|
||
case 'c':
|
||
settings.buildCores = atoi (arg);
|
||
break;
|
||
case 'M':
|
||
settings.maxBuildJobs = atoi (arg);
|
||
break;
|
||
case GUIX_OPT_SYSTEM:
|
||
settings.thisSystem = arg;
|
||
break;
|
||
default:
|
||
return ARGP_ERR_UNKNOWN;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
/* Argument parsing. */
|
||
static struct argp argp = { options, parse_opt, 0, doc };
|
||
|
||
|
||
|
||
int
|
||
main (int argc, char *argv[])
|
||
{
|
||
Strings nothing;
|
||
|
||
/* Initialize libgcrypt. */
|
||
if (!gcry_check_version (GCRYPT_VERSION))
|
||
{
|
||
fprintf (stderr, "error: libgcrypt version mismatch\n");
|
||
exit (EXIT_FAILURE);
|
||
}
|
||
|
||
#ifdef HAVE_CHROOT
|
||
settings.useChroot = true;
|
||
#else
|
||
settings.useChroot = false;
|
||
#endif
|
||
|
||
argvSaved = argv;
|
||
|
||
try
|
||
{
|
||
settings.processEnvironment ();
|
||
|
||
/* Use our substituter by default. */
|
||
settings.substituters.clear ();
|
||
string subs = getEnv ("NIX_SUBSTITUTERS", "default");
|
||
if (subs == "default")
|
||
/* XXX: No substituters until we have something that works. */
|
||
settings.substituters.clear ();
|
||
// settings.substituters.push_back (settings.nixLibexecDir
|
||
// + "/guix/substitute-binary");
|
||
else
|
||
settings.substituters = tokenizeString<Strings> (subs, ":");
|
||
|
||
|
||
argp_parse (&argp, argc, argv, 0, 0, 0);
|
||
|
||
if (geteuid () == 0 && settings.buildUsersGroup.empty ())
|
||
fprintf (stderr, "warning: daemon is running as root, so "
|
||
"using `--build-users-group' is highly recommended\n");
|
||
|
||
#ifdef HAVE_CHROOT
|
||
if (settings.useChroot)
|
||
{
|
||
foreach (PathSet::iterator, i, settings.dirsInChroot)
|
||
{
|
||
printMsg (lvlDebug,
|
||
format ("directory `%1%' added to the chroot") % *i);
|
||
}
|
||
}
|
||
#endif
|
||
|
||
printMsg (lvlDebug,
|
||
format ("listening on `%1%'") % settings.nixDaemonSocketFile);
|
||
|
||
run (nothing);
|
||
}
|
||
catch (std::exception &e)
|
||
{
|
||
fprintf (stderr, "error: %s\n", e.what ());
|
||
return EXIT_FAILURE;
|
||
}
|
||
|
||
return EXIT_SUCCESS; /* never reached */
|
||
}
|