di-choosy.sh

#!/usr/bin/env zsh -f
# Purpose: Download Choosy v2
#
# From:	Timothy J. Luoma
# Mail:	luomat at gmail dot com
# Date:	2019-11-01

NAME="$0:t:r"

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

INSTALL_TO='/Applications/Choosy.app'

XML_FEED='https://www.choosyosx.com/sparkle/feed'

HOMEPAGE="https://www.choosyosx.com"

DOWNLOAD_PAGE="https://www.choosyosx.com"

SUMMARY="Instead of opening links in the default browser, Choosy sends them to the right browser. Every time."

	# sparkle:version= is the only version information available
INFO=($(curl -sfL "$XML_FEED" \
		| tr -s ' ' '\012' \
		| egrep "sparkle:version=|url=" \
		| head -2 \
		| awk -F'"' '/^/{print $2}'))

RELEASE_NOTES_URL=$(curl -sfL "$XML_FEED" \
	| sed '1,/<description><\!\[CDATA\[/d; /<\/description>/,$d' \
	| awk -F'"' '/http/{print $2}')

URL="$INFO[2]"

LATEST_VERSION="$INFO[1]"

	# If any of these are blank, we should not continue
if [ "$INFO" = "" -o "$LATEST_VERSION" = "" -o "$URL" = "" ]
then
	echo "$NAME: Error: bad data received:
	INFO: $INFO
	LATEST_VERSION: $LATEST_VERSION
	URL: $URL
	"

	exit 1
fi

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	echo "$NAME: Outdated: $INSTALLED_VERSION vs $LATEST_VERSION"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

	# Where to save new download
FILENAME="$HOME/Downloads/$INSTALL_TO:t:r-$LATEST_VERSION.zip"

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

	( echo "$NAME: Release Notes for $INSTALL_TO:t:r version $LATEST_VERSION:\n" ;
		curl -sfL "$RELEASE_NOTES_URL" \
		| sed '1,/<h3>Release notes<\/h3>/d; /<h3>Download<\/h3>/,$d' \
		| lynx -dump -nomargins -width=10000 -assume_charset=UTF-8 -pseudo_inlines -stdin ;
		echo "\nSource: <$RELEASE_NOTES_URL>" ) \
	| 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

(cd "$FILENAME:h" ; echo "\nLocal sha256:" ; shasum -a 256 "$FILENAME:t" ) >>| "$FILENAME:r.txt"

# <sparkle:minimumSystemVersion>10.14</sparkle:minimumSystemVersion>


## 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 "$FILENAME" "$HOME/.Trash/"

	mv -fv "$FILENAME:r".* "$HOME/.Trash/"

	exit 0

fi

## unzip to a temporary directory
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

PKG=$(find "$UNZIP_TO" -iname '*.pkg' -print )

if (( $+commands[pkginstall.sh] ))
then
		# This is a script I wrote that basically just does a lot of extra logging for me.
 	pkginstall.sh "$PKG"

else

	sudo /usr/sbin/installer -verbose -pkg "$PKG" -dumplog -target / -lang en 2>&1 | tee -a "$FILENAME:r.install.log" \
	|| open -a Installer "$FILENAME"

fi

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

exit 0
#EOF