105 lines
3.5 KiB
Bash
105 lines
3.5 KiB
Bash
#!/bin/sh
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set -e
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USER_CHOICE_CONFIG="/etc/evcc-userchoices.sh"
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ETC_SERVICE="/etc/systemd/system/evcc.service"
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USR_LOCAL_BIN="/usr/local/bin/evcc"
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RESTART_FLAG_FILE="/tmp/.restartEvccOnUpgrade"
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# Usage: askUserKeepFile <file>
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# Return: 1 = keep, 0 = delete
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askUserKeepFile() {
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while true; do
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echo "Shall '$1' be deleted? [Y/n]: "
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read answer
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case "$answer" in
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n* | N*)
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echo "Ok. We will keep that file. Keep in mind that you may need to alter it if any changes are done upstream. Your answer is saved for the future."
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return 1
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;;
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y* | Y* | "")
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echo "The file will be deleted."
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return 0
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;;
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*) ;;
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esac
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done
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}
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if [ "$1" = "configure" ]; then
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KEEP_ETC_SERVICE=0
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KEEP_USR_LOCAL_BIN=0
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# If the user once said that he wants to keep the files
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# this choice file will include that information
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# and the user will no longer be asked if he wants to keep it
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if [ -f "$USER_CHOICE_CONFIG" ]; then
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. "$USER_CHOICE_CONFIG"
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fi
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# If the user previously decided that he doesn't want to keep
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# the files or if it's the first time, aks whether he want's to
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# keep the file
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if [ -f "$ETC_SERVICE" ] && [ "$KEEP_ETC_SERVICE" -eq 0 ]; then
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echo "An alternate service file was detected under '$ETC_SERVICE'."
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echo "This is probably due to a previous manual installation."
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echo "You probably want to delete this file now. Your evcc configuration stays untouched!"
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askUserKeepFile "$ETC_SERVICE" || KEEP_ETC_SERVICE=$?
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fi
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if [ -f "$USR_LOCAL_BIN" ] && [ "$KEEP_USR_LOCAL_BIN" -eq 0 ]; then
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echo "An alternate evcc binary was detected under '$USR_LOCAL_BIN'."
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echo "This is probably due to a previous manual installation."
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echo "You probably want to delete this file now. Your evcc configuration stays untouched!"
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askUserKeepFile "$USR_LOCAL_BIN" || KEEP_USR_LOCAL_BIN=$?
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fi
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# Save the user decision
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cat > "$USER_CHOICE_CONFIG" << EOF
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#!/bin/sh
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KEEP_ETC_SERVICE=$KEEP_ETC_SERVICE
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KEEP_USR_LOCAL_BIN=$KEEP_USR_LOCAL_BIN
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EOF
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# Register file with ucfr so it is tracked as belonging to the evcc package
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if [ -x /usr/bin/ucfr ]; then
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ucfr evcc "$USER_CHOICE_CONFIG"
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fi
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# Execute the user decision
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if [ -f "$ETC_SERVICE" ] && [ "$KEEP_ETC_SERVICE" -eq 0 ]; then
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echo "Deleting old service file '$ETC_SERVICE'"
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rm -v "$ETC_SERVICE"
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fi
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if [ -f "$USR_LOCAL_BIN" ] && [ "$KEEP_USR_LOCAL_BIN" -eq 0 ]; then
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echo "Deleting old evcc binary '$USR_LOCAL_BIN'"
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rm -v "$USR_LOCAL_BIN"
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fi
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fi
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if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ]; then
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# This will only remove masks created by d-s-h on package removal.
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deb-systemd-helper unmask evcc.service > /dev/null || true
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# was-enabled defaults to true, so new installations run enable.
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if deb-systemd-helper --quiet was-enabled evcc.service; then
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# Enables the unit on first installation, creates new
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# symlinks on upgrades if the unit file has changed.
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deb-systemd-helper enable evcc.service > /dev/null || true
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else
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# Update the statefile to add new symlinks (if any), which need to be
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# cleaned up on purge. Also remove old symlinks.
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deb-systemd-helper update-state evcc.service > /dev/null || true
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fi
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# Restart only if it was already started
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if [ -d /run/systemd/system ]; then
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systemctl --system daemon-reload > /dev/null || true
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if [ -f $RESTART_FLAG_FILE ]; then
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deb-systemd-invoke start evcc.service > /dev/null || true
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rm $RESTART_FLAG_FILE
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elif [ -n "$2" ]; then
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deb-systemd-invoke try-restart evcc.service > /dev/null || true
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else
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deb-systemd-invoke start evcc.service > /dev/null || true
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fi
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fi
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fi
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