guix-install.sh: Improve prompt_yes_no procedure.

* etc/guix-install.sh (_flush): New function.
(prompt_yes_no): Clear input, then only read the first character, silently.
Add the [Yes/no] string to the message.  When a newline is entered by the
user, treat it as the default value, which is "yes".
(chk_gpg_keyring): Remove "(yes/no)" from the prompt message.
(configure_substitute_discovery): Likewise.
(sys_authorize_build_farms): Likewise.
This commit is contained in:
Maxim Cournoyer 2022-10-05 21:48:25 -04:00
parent 8319be779f
commit 6a2e303d3a
No known key found for this signature in database
GPG key ID: 1260E46482E63562

View file

@ -9,7 +9,7 @@
# Copyright © 2020 Daniel Brooks <db48x@db48x.net>
# Copyright © 2021 Jakub Kądziołka <kuba@kadziolka.net>
# Copyright © 2021 Chris Marusich <cmmarusich@gmail.com>
# Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
# Copyright © 2021, 2022 Maxim Cournoyer <maxim.cournoyer@gmail.com>
#
# This file is part of GNU Guix.
#
@ -92,15 +92,25 @@ _debug()
fi
}
# Return true if user answered yes, false otherwise.
_flush()
{
while read -t0; do
read -N1
done
}
# Return true if user answered yes, false otherwise. It defaults to "yes"
# when a single newline character is input.
# $1: The prompt question.
prompt_yes_no() {
while true; do
read -rp "$1 " yn
_flush
read -N1 -rsp "$1 [Y/n]" yn
case $yn in
[Yy]*) return 0;;
[Nn]*) return 1;;
*) _msg "Please answer yes or no."
$'\n') echo && return 0;;
[Yy]*) echo && return 0;;
[Nn]*) echo && return 1;;
*) echo && _msg "Please answer yes or no."
esac
done
}
@ -137,7 +147,7 @@ chk_gpg_keyring()
if ! gpg --dry-run --list-keys "$gpg_key_id" >/dev/null 2>&1; then
if prompt_yes_no "${INF}The following OpenPGP public key is \
required to verify the Guix binary signature: $gpg_key_id.
Would you like me to fetch it for you? (yes/no)"; then
Would you like me to fetch it for you?"; then
wget "https://sv.gnu.org/people/viewgpg.php?user_id=$user_id" \
--no-verbose -O- | gpg --import -
else
@ -254,7 +264,7 @@ chk_sys_nscd()
configure_substitute_discovery() {
if grep -q -- '--discover=no' "$1" && \
prompt_yes_no "Would you like the Guix daemon to automatically \
discover substitute servers on the local network? (yes/no)"; then
discover substitute servers on the local network?"; then
sed -i 's/--discover=no/--discover=yes/' "$1"
fi
}
@ -490,7 +500,7 @@ sys_enable_guix_daemon()
sys_authorize_build_farms()
{ # authorize the public key of the build farm
if prompt_yes_no "Permit downloading pre-built package binaries from the \
project's build farm? (yes/no)"; then
project's build farm?"; then
guix archive --authorize \
< ~root/.config/guix/current/share/guix/ci.guix.gnu.org.pub \
&& _msg "${PAS}Authorized public key for ci.guix.gnu.org"