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installer: allow opting in / out to the daemon installer

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By passing --daemon or --no-daemon, the installer can be forced to
select one or the other installation options, despite what the
automatic detection can provide.

This commit can be backported to 2.0-maintenance because it explicitly
turns off the daemon installation for Linux under systemd.
This commit is contained in:
Graham Christensen 2018-04-19 13:37:54 -04:00
parent a99027d587
commit 17b158af85
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GPG key ID: ACA1C1D120C83D5C
1 changed files with 31 additions and 6 deletions
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37
scripts/install-nix-from-closure.sh
View file

@ -28,14 +28,39 @@ if [ "$(uname -s)" = "Darwin" ]; then
echo "$0: macOS $(sw_vers -productVersion) is not supported, upgrade to 10.10 or higher"
exit 1
fi
printf '\e[1;31mSwitching to the Daemon-based Installer\e[0m\n'
exec "$self/install-multi-user"
exit 0
fi
# Linux & Systemd support
if [ "$(uname -s)" = "Linux" ] && [ -e /run/systemd/system ]; then
# Determine if we should punt to the single-user installer or not
if [ "$(uname -s)" = "Darwin" ]; then
INSTALL_MODE=daemon
elif [ "$(uname -s)" = "Linux" ] && [ -e /run/systemd/system ]; then
INSTALL_MODE=no-daemon
else
INSTALL_MODE=no-daemon
fi
# Trivially handle the --daemon / --no-daemon options
if [ "x${1:-}" = "x--no-daemon" ]; then
INSTALL_MODE=no-daemon
elif [ "x${1:-}" = "x--daemon" ]; then
INSTALL_MODE=daemon
elif [ "x${1:-}" != "x" ]; then
(
echo "Nix Installer [--daemon|--no-daemon]"
echo ""
echo " --daemon: Force the installer to use the Daemon"
echo " based installer, even though it may not"
echo " work."
echo ""
echo " --no-daemon: Force a no-daemon, single-user"
echo " installation even when the preferred"
echo " method is with the daemon."
echo ""
) >&2
exit
fi
if [ "$INSTALL_MODE" = "daemon" ]; then
printf '\e[1;31mSwitching to the Daemon-based Installer\e[0m\n'
exec "$self/install-multi-user"
exit 0