di-boringoldmenubar.sh

#!/usr/bin/env zsh -f
# Purpose:
#
# From:	Timothy J. Luoma
# Mail:	luomat at gmail dot com
# Date:	2020-10-28

NAME="$0:t:r"

if [[ -e "$HOME/.path" ]]
then
	source "$HOME/.path"
fi

INSTALL_TO="/Applications/Boring Old Menu Bar.app"

XML_FEED="https://www.publicspace.net/app/bomb.xml"

RELEASE_NOTES_URL='https://www.publicspace.net/app/bomb.html'

# <enclosure sparkle:version="1.05" url="https://www.publicspace.net/download/bomb.zip" sparkle:dsaSignature="MC0CFH6gr9g5tapPHZl+CEvRRoqard5UAhUAgW7j6eiJqEnouMa9RNXQT6PwQ6s=" length="3200000" type="application/octet-stream"/>

INFO=$(curl -sfLS "$XML_FEED" | awk '/<item>/{i++}i==1')

LATEST_VERSION=$(echo "$INFO" | awk -F'"' '/<enclosure/{print $2}')

URL=$(echo "$INFO" | awk -F'"' '/<enclosure/{print $4}')

if [[ -e "$INSTALL_TO" ]]
then

	INSTALLED_VERSION=$(defaults read "${INSTALL_TO}/Contents/Info" CFBundleShortVersionString)

	autoload is-at-least

	is-at-least "$LATEST_VERSION" "$INSTALLED_VERSION"

	VERSION_COMPARE="$?"

	if [ "$VERSION_COMPARE" = "0" ]
	then
		echo "$NAME: Up-To-Date ($INSTALLED_VERSION)"
		exit 0
	fi

	echo "$NAME: Outdated: $INSTALLED_VERSION vs $LATEST_VERSION"

	FIRST_INSTALL='no'

	if [[ ! -w "$INSTALL_TO" ]]
	then
		echo "$NAME: '$INSTALL_TO' exists, but you do not have 'write' access to it, therefore you cannot update it." >>/dev/stderr

		exit 2
	fi

else

	FIRST_INSTALL='yes'
fi


FILENAME="$HOME/Downloads/${${INSTALL_TO:t:r}// /}-${${LATEST_VERSION}// /}.zip"


RELEASE_NOTES_TXT="$FILENAME:r.txt"

if [[ -e "$RELEASE_NOTES_TXT" ]]
then

	cat "$RELEASE_NOTES_TXT"

else

	if (( $+commands[lynx] ))
	then

		RELEASE_NOTES=$(curl -sfLS "$RELEASE_NOTES_URL" \
						| awk '/<h2>/{i++}i==1' \
						| lynx -dump -width='10000' -display_charset=UTF-8 -assume_charset=UTF-8 -pseudo_inlines -stdin -nomargins)

		echo "${RELEASE_NOTES}\n\nSource: ${RELEASE_NOTES_URL}\nVersion : ${LATEST_VERSION}\nURL: $URL" | tee "$RELEASE_NOTES_TXT"

	else
			# if we can't get the plain text, save the HTML page at least
		curl -sfLS "$RELEASE_NOTES_URL" > "$FILENAME:r.html"

	fi
fi


echo "$NAME: Downloading '$URL' to '$FILENAME':"

curl --continue-at - --fail --location --output "$FILENAME" "$URL"

EXIT="$?"

	## exit 22 means 'the file was already fully downloaded'
[ "$EXIT" != "0" -a "$EXIT" != "22" ] && echo "$NAME: Download of $URL failed (EXIT = $EXIT)" && exit 0

[[ ! -e "$FILENAME" ]] && echo "$NAME: $FILENAME does not exist." && exit 0

[[ ! -s "$FILENAME" ]] && echo "$NAME: $FILENAME is zero bytes." && rm -f "$FILENAME" && exit 0

egrep -q '^Local sha256:$' "$FILENAME:r.txt" 2>/dev/null

EXIT="$?"

if [ "$EXIT" = "1" -o ! -e "$FILENAME:r.txt" ]
then
	(cd "$FILENAME:h" ; \
	echo "\n\nLocal sha256:" ; \
	shasum -a 256 "$FILENAME:t" \
	)  >>| "$FILENAME:r.txt"
fi


TEMPDIR=$(mktemp -d "${TMPDIR-/tmp/}${NAME-$0:r}-XXXXXXXX")

	## make sure that the .zip is valid before we proceed
(command unzip -l "$FILENAME" 2>&1 )>/dev/null

EXIT="$?"

if [ "$EXIT" = "0" ]
then
	echo "$NAME: '$FILENAME' is a valid zip file."

else
	echo "$NAME: '$FILENAME' is an invalid zip file (\$EXIT = $EXIT)"

	mv -fv "$FILENAME" "$TEMPDIR/"

	mv -fv "$FILENAME:r".* "$TEMPDIR/"

	exit 0

fi

	## unzip to a temporary directory
UNZIP_TO=$(mktemp -d "${TEMPDIR}/${NAME}-XXXXXXXX")

echo "$NAME: Unzipping '$FILENAME' to '$UNZIP_TO':"

ditto -xk --noqtn "$FILENAME" "$UNZIP_TO"

EXIT="$?"

if [[ "$EXIT" == "0" ]]
then
	echo "$NAME: Unzip successful"
else
		# failed
	echo "$NAME failed (ditto -xkv '$FILENAME' '$UNZIP_TO')"

	exit 1
fi

if [[ -e "$INSTALL_TO" ]]
then

	pgrep -xq "$INSTALL_TO:t:r" \
	&& LAUNCH='yes' \
	&& osascript -e "tell application \"$INSTALL_TO:t:r\" to quit"

	echo "$NAME: Moving existing (old) '$INSTALL_TO' to '$TEMPDIR/'."

	mv -f "$INSTALL_TO" "$TEMPDIR/$INSTALL_TO:t:r.$INSTALLED_VERSION.app"

	EXIT="$?"

	if [[ "$EXIT" != "0" ]]
	then

		echo "$NAME: failed to move existing '$INSTALL_TO' to '$TEMPDIR'."

		exit 1
	fi
fi

echo "$NAME: Moving new version of '$INSTALL_TO:t' (from '$UNZIP_TO') to '$INSTALL_TO'."

	# Move the file out of the folder
mv -n "$UNZIP_TO/$INSTALL_TO:t" "$INSTALL_TO"

EXIT="$?"

if [[ "$EXIT" = "0" ]]
then

	echo "$NAME: Successfully installed '$UNZIP_TO/$INSTALL_TO:t' to '$INSTALL_TO'."

else
	echo "$NAME: Failed to move '$UNZIP_TO/$INSTALL_TO:t' to '$INSTALL_TO'."

	exit 1
fi

[[ "$LAUNCH" = "yes" ]] && open -a "$INSTALL_TO"


exit 0
#EOF