d20665ecbf
When starting the 'guix' command, this ensures Guile modules are immediately found instead of being search for in other directories. This reduces the number of 'stat' calls during startup when GUILE_LOAD_PATH is set to (almost) that of "env -i $(type -P guix)". * gnu/packages/aux-files/guile-launcher.c (load_path) (load_compiled_path): New variables. (inner_main): Restore GUILE_LOAD_PATH and GUILE_LOAD_COMPILED_PATH and set %load-path and %load-compiled-path accordingly. (main): Save GUILE_LOAD_PATH and GUILE_LOAD_COMPILED_PATH and unset them.
89 lines
2.9 KiB
C
89 lines
2.9 KiB
C
/* GNU Guix --- Functional package management for GNU
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Copyright 1996-1997,2000-2001,2006,2008,2011,2013,2018,2020
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Free Software Foundation, Inc.
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Copyright (C) 2020 Ludovic Courtès <ludo@gnu.org>
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This file is part of GNU Guix.
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GNU Guix is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or (at
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your option) any later version.
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GNU Guix is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. */
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/* This file implements a variant of the 'guile' executable that does not
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complain about locale issues and arranges to reduce startup time by
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ignoring GUILE_LOAD_PATH and GUILE_LOAD_COMPILED_PATH until it has
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booted. */
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#include <stdlib.h>
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#include <string.h>
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#include <locale.h>
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#include <libguile.h>
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/* Saved values of GUILE_LOAD_PATH and GUILE_LOAD_COMPILED_PATH. */
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static const char *load_path, *load_compiled_path;
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static void
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inner_main (void *unused, int argc, char **argv)
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{
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if (load_path != NULL)
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{
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setenv ("GUILE_LOAD_PATH", load_path, 1);
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SCM load_path_var =
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scm_c_public_lookup ("guile", "%load-path");
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SCM addition =
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scm_parse_path (scm_from_locale_string (load_path), SCM_EOL);
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scm_variable_set_x (load_path_var,
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scm_append
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(scm_list_2 (scm_variable_ref (load_path_var),
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addition)));
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}
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if (load_compiled_path != NULL)
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{
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setenv ("GUILE_LOAD_COMPILED_PATH", load_compiled_path, 1);
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SCM load_compiled_path_var =
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scm_c_public_lookup ("guile", "%load-compiled-path");
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SCM addition =
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scm_parse_path (scm_from_locale_string (load_compiled_path), SCM_EOL);
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scm_variable_set_x (load_compiled_path_var,
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scm_append
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(scm_list_2 (scm_variable_ref (load_compiled_path_var),
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addition)));
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}
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scm_shell (argc, argv);
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}
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int
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main (int argc, char **argv)
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{
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/* Try to install the current locale; remain silent if it fails. */
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if (setlocale (LC_ALL, "") == NULL)
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/* The 'guix pull'-provided 'guix' includes at least en_US.utf8 so use
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that. That gives us UTF-8 support for 'scm_to_locale_string', etc.,
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which is always preferable over the C locale. */
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setlocale (LC_ALL, "en_US.utf8");
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const char *str;
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str = getenv ("GUILE_LOAD_PATH");
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load_path = str != NULL ? strdup (str) : NULL;
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str = getenv ("GUILE_LOAD_COMPILED_PATH");
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load_compiled_path = str ? strdup (str) : NULL;
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unsetenv ("GUILE_LOAD_PATH");
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unsetenv ("GUILE_LOAD_COMPILED_PATH");
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scm_install_gmp_memory_functions = 1;
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scm_boot_guile (argc, argv, inner_main, 0);
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return 0; /* never reached */
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}
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