di-boostnote.sh

#!/usr/bin/env zsh -f
# Purpose: https://boostnote.io
#
# From:	Timothy J. Luoma
# Mail:	luomat at gmail dot com
# Date:	2019-06-07

# An open source markdown editor for Mac, Windows and Linux app.
#
# The intuitive and stylish note taking tool for developers.
#
# An open source markdown editor for Mac, Windows and Linux app.
#
# Note-taking for programmers
#
# "Your markdown notes are saved automatically as you write and various formatting options have semi-live
#  previews so you can double check what you’re writing. Text is formatted as you type.
# For code snippets the app is able to highlight code syntax in more than 100 languages, including
#  Javascript, Python, HTML and CSS and you can store multiple code snippets within the same snippet."

NAME="$0:t:r"

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

INSTALL_TO='/Applications/Boostnote.app'

XML_FEED='https://github.com/BoostIO/boost-releases/releases.atom'

LATEST_VERSION=$(curl -sfLS "$XML_FEED" \
				| fgrep -i 'https://github.com/boostIO/boost-releases/releases/tag/' \
				| head -1 \
				| sed 's#.*/tag/v##g; s#"/>##g')

URL="https://github.com/BoostIO/boost-releases/releases/download/v${LATEST_VERSION}/Boostnote-mac.zip"

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	echo "$NAME: Outdated: $INSTALLED_VERSION vs $LATEST_VERSION"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

else

	FIRST_INSTALL='yes'
fi

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

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

	(echo "Boostnote ${LATEST_VERSION}";
			curl -sfLS "$XML_FEED" \
			| awk '/<content type="html"/{i++}i==1' \
			| sed -e '/<author>/,$d' -e 's#<content type="html">##g' -e 's#</content>##g' \
			| lynx -dump -nomargins -width='10000' -assume_charset=UTF-8 -pseudo_inlines -nonumbers -nolist -stdin \
			| lynx -dump -nomargins -width='10000' -assume_charset=UTF-8 -pseudo_inlines -nonumbers -nolist -stdin ) \
			| tee "$FILENAME:r.txt"

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

UNZIP_TO=$(mktemp -d "${TMPDIR-/tmp/}${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 '$HOME/.Trash/'."

	mv -vf "$INSTALL_TO" "$HOME/.Trash/$INSTALL_TO:t:r.$INSTALLED_VERSION.app"

	EXIT="$?"

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

		echo "$NAME: failed to move existing $INSTALL_TO to $HOME/.Trash/"

		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 -vn "$UNZIP_TO/$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