kiss: Simpler elevation method

This commit is contained in:
Dylan Araps 2020-01-27 10:06:56 +02:00
parent 22b4af9342
commit 7eb80497f6
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GPG Key ID: 46D62DD9F1DE636E

60
kiss
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@ -45,6 +45,33 @@ prompt() {
read -r _
}
root_cache() {
# This function simply mimics a 'su' prompt to then store
# the user's root password for the lifetime of the package
# manager.
#
# Think of this as the simplest method of "elevating"
# permissions where needed without the endless stream of
# password prompts.
printf 'Password: '
stty -echo
read -r pass || read -r pass ||:
stty echo
printf '\n'
# Validate the password now with a simple 'true' command
# as we don't yet need to elevate permissions.
root_run true
}
root_run() {
# Run a command as root using the cached password. The 'su'
# command allows you to input a password via stdin. To hide
# the prompt, the command's output is sent to '/dev/tty'
# and the output of 'su' is sent to '/dev/null'.
echo "$pass" | su -c "$* >/dev/tty" >/dev/null
}
pkg_lint() {
# Check that each mandatory file in the package entry exists.
log "$1" "Checking repository files"
@ -880,17 +907,8 @@ pkg_updates() {
git fetch
git merge
else
log "$PWD" "Need root to update"
if command -v sudo >/dev/null; then
sudo git fetch
sudo git merge
elif command -v doas >/dev/null; then
doas git fetch
doas git merge
else
su -c 'git fetch && git merge'
fi
root_run git fetch
root_run git merge
fi
}
done
@ -995,22 +1013,12 @@ args() {
[ "$1" ] || die "'kiss $action' requires an argument"
;;
i|install|r|remove)
[ "$1" ] || die "'kiss $action' requires an argument"
i|install|r|remove|u|update)
[ "$1" ] || [ -z "${action##u*}" ] ||
die "'kiss $action' requires an argument"
# Rerun the script with 'su' if the user isn't root.
# Cheeky but 'su' can't be used on shell functions themselves.
[ "$(id -u)" = 0 ] || {
if command -v sudo >/dev/null; then
sudo -E KISS_FORCE="$KISS_FORCE" kiss "$action" "$@"
elif command -v doas >/dev/null; then
KISS_FORCE="$KISS_FORCE" doas kiss "$action" "$@"
else
su -pc "KISS_FORCE=$KISS_FORCE kiss $action $*"
fi
return
}
# Cache the root password for use where needed.
[ "$(id -u)" = 0 ] || root_cache
;;
esac