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guix-install.sh: Add unique requirement for sysv init system

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This improves the installer's ability to detect that all requirements are
present regardless of init system. It also avoids performing the requirement
check twice (printing excessively to the console) and provides a framework for
adding new init system specific requirements if it's needed in the future.

* etc/guix-install.sh (add_init_sys_require): Create.
(SYSV_INIT_REQUIRE): Create.
(main_install): Reorder installer steps so all requirements are checked in one
pass.

Change-Id: Ic541c1b90499d504642b7ab4ae595501b1a37b0d
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
This commit is contained in:
Richard Sent 2024-05-28 20:36:06 -04:00 committed by Ludovic Courtès
parent 3e87b207ce
commit 40c6f70839
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GPG key ID: 090B11993D9AEBB5
1 changed files with 21 additions and 1 deletions
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22
etc/guix-install.sh
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@ -15,6 +15,7 @@
# Copyright © 2020 David A. Redick <david.a.redick@gmail.com>
# Copyright © 2024 Janneke Nieuwenhuizen <janneke@gnu.org>
# Copyright © 2024 Tomas Volf <~@wolfsden.cz>
# Copyright © 2024 Richard Sent <richard@freakingpenguin.com>
#
# This file is part of GNU Guix.
#
@ -81,6 +82,12 @@ REQUIRE=(
"xz"
)
# Add variables using form FOO_INIT_REQUIRE when init system FOO dependencies
# should be checked.
SYSV_INIT_REQUIRE=(
"daemonize"
)
PAS=$'[ \033[32;1mPASS\033[0m ] '
ERR=$'[ \033[31;1mFAIL\033[0m ] '
WAR=$'[ \033[33;1mWARN\033[0m ] '
@ -148,6 +155,18 @@ chk_require()
_msg "${PAS}verification of required commands completed"
}
add_init_sys_require()
{ # Add the elements of FOO_INIT_SYS to REQUIRE
local init_require="${INIT_SYS}_REQUIRE[@]"
if [[ ! -z "$init_require" ]]; then
# Have to add piecemeal because ${!foo[@]} performs direct array key
# expansion, not indirect plain array expansion.
for r in "${!init_require}"; do
REQUIRE+=("$r")
done
fi
}
chk_gpg_keyring()
{ # Check whether the Guix release signing public key is present.
_debug "--- [ ${FUNCNAME[0]} ] ---"
@ -794,9 +813,10 @@ main_install()
_msg "Starting installation ($(date))"
chk_term
chk_init_sys
add_init_sys_require
chk_require "${REQUIRE[@]}"
chk_gpg_keyring
chk_init_sys
chk_sys_arch
chk_sys_nscd