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daemon: Add `--no-substitutes'.

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Suggested by Mark H. Weaver.

* nix/nix-daemon/guix-daemon.cc (GUIX_OPT_NO_SUBSTITUTES): New macro.
  (options): Add `--no-substitutes'.
  (parse_opt): Add `GUIX_OPT_NO_SUBSTITUTES' case.
  (main): Leave `settings.substituters' empty when
  `settings.useSubstitutes' is false.
This commit is contained in:
Ludovic Courtès 2013-04-18 22:46:34 +02:00
parent ea0ee755bd
commit 6858f9d132
2 changed files with 22 additions and 7 deletions
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4
doc/guix.texi
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@ -295,6 +295,10 @@ The following command-line options are supported:
Take users from @var{group} to run build processes (@pxref{Setting Up
the Daemon, build users}).
@item --no-substitutes
Do not use substitutes for build products. That is, always build things
locally instead of allowing downloads of pre-built binaries.
@item --cache-failures
Cache build failures. By default, only successful builds are cached.

25
nix/nix-daemon/guix-daemon.cc
View file

@ -65,6 +65,7 @@ builds derivations on behalf of its clients.";
#define GUIX_OPT_DEBUG 9
#define GUIX_OPT_CHROOT_DIR 10
#define GUIX_OPT_LISTEN 11
#define GUIX_OPT_NO_SUBSTITUTES 12
static const struct argp_option options[] =
{
@ -90,6 +91,8 @@ static const struct argp_option options[] =
},
{ "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,
"Do not use substitutes" },
{ "cache-failures", GUIX_OPT_CACHE_FAILURES, 0, 0,
"Cache build failures" },
{ "lose-logs", GUIX_OPT_LOSE_LOGS, 0, 0,
@ -152,6 +155,9 @@ parse_opt (int key, char *arg, struct argp_state *state)
exit (EXIT_FAILURE);
}
break;
case GUIX_OPT_NO_SUBSTITUTES:
settings.useSubstitutes = false;
break;
case GUIX_OPT_DEBUG:
verbosity = lvlDebug;
break;
@ -202,16 +208,21 @@ main (int argc, char *argv[])
/* Use our substituter by default. */
settings.substituters.clear ();
string subs = getEnv ("NIX_SUBSTITUTERS", "default");
if (subs == "default")
settings.substituters.push_back (settings.nixLibexecDir
+ "/guix/substitute-binary");
else
settings.substituters = tokenizeString<Strings> (subs, ":");
settings.useSubstitutes = true;
argp_parse (&argp, argc, argv, 0, 0, 0);
if (settings.useSubstitutes)
{
string subs = getEnv ("NIX_SUBSTITUTERS", "default");
if (subs == "default")
settings.substituters.push_back (settings.nixLibexecDir
+ "/guix/substitute-binary");
else
settings.substituters = tokenizeString<Strings> (subs, ":");
}
if (geteuid () == 0 && settings.buildUsersGroup.empty ())
fprintf (stderr, "warning: daemon is running as root, so "
"using `--build-users-group' is highly recommended\n");