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build: Make 'chroot' a hard requirement.

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* config-daemon.ac: Error out when $ac_cv_func_chroot is not "yes".
* nix/nix-daemon/guix-daemon.cc (options): Remove #ifdef HAVE_CHROOT.
  (main): Likewise.
This commit is contained in:
Ludovic Courtès 2015-02-04 09:36:58 +01:00
parent 6a070700df
commit 3b9855f496
2 changed files with 12 additions and 19 deletions
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4
config-daemon.ac
View file

@ -75,6 +75,10 @@ if test "x$guix_build_daemon" = "xyes"; then
AC_CHECK_FUNCS([chroot unshare])
AC_CHECK_HEADERS([sched.h sys/param.h sys/mount.h tr1/unordered_set])
if test "x$ac_cv_func_chroot" != "xyes"; then
AC_MSG_ERROR(['chroot' function missing, bailing out])
fi
dnl lutimes and lchown: used when canonicalizing store items.
dnl posix_fallocate: used when extracting archives.
dnl vfork: to speed up spawning of helper programs.

27
nix/nix-daemon/guix-daemon.cc
View file

@ -1,5 +1,5 @@
/* GNU Guix --- Functional package management for GNU
Copyright (C) 2012, 2013, 2014 Ludovic Courtès <ludo@gnu.org>
Copyright (C) 2012, 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
This file is part of GNU Guix.
@ -82,19 +82,9 @@ static const struct argp_option options[] =
{ "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
},
"Disable chroot builds" },
{ "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
},
"Add DIR to the build chroot" },
{ "build-users-group", GUIX_OPT_BUILD_USERS_GROUP, "GROUP", 0,
"Perform builds as a user of GROUP" },
{ "no-substitutes", GUIX_OPT_NO_SUBSTITUTES, 0, 0,
@ -255,12 +245,13 @@ main (int argc, char *argv[])
See <http://lists.gnu.org/archive/html/bug-guix/2013-07/msg00033.html>. */
umask (S_IWGRP | S_IWOTH);
#ifdef HAVE_CHROOT
settings.useChroot = true;
#else
settings.useChroot = false;
#ifndef HAVE_CHROOT
# error chroot is assumed to be available
#endif
/* Always use chroots by default. */
settings.useChroot = true;
/* Turn automatic deduplication on by default. */
settings.autoOptimiseStore = true;
@ -335,7 +326,6 @@ main (int argc, char *argv[])
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)
@ -344,7 +334,6 @@ main (int argc, char *argv[])
format ("directory `%1%' added to the chroot") % *i);
}
}
#endif
printMsg (lvlDebug,
format ("automatic deduplication set to %1%")